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Thermographic testing uses infrared cameras to detect differences in surface temperatures that may indicate issues. It allows non-contact inspection of electrical systems, buildings, industrial equipment and processes. Key advantages are that it is non-destructive, fast, and can detect problems like loose connections, moisture ingress, insulation issues from a distance. Proper equipment, operator experience and understanding temperature differences are important for effective thermographic analysis.
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thermographic-testing-presentation.pdf
Thermographic testing uses infrared cameras to detect differences in surface temperatures that may indicate issues. It allows non-contact inspection of electrical systems, buildings, industrial equipment and processes. Key advantages are that it is non-destructive, fast, and can detect problems like loose connections, moisture ingress, insulation issues from a distance. Proper equipment, operator experience and understanding emissivity are important to get reliable results. A variety of applications are described like evaluating switchgear, transformers, refractory linings, vessels, flares and detecting manufacturing or process faults.
Thermographic testing-presentation
Thermographic testing uses infrared cameras to detect differences in surface temperatures that may indicate issues. It allows non-contact inspection of electrical equipment, buildings, industrial processes, and more. Key advantages are that it is non-destructive, fast, and can detect problems like loose connections, moisture ingress, insulation issues, and more from a distance. Operator experience is important to properly set up the infrared camera and interpret thermal images.
Thermography
The document discusses infrared thermography, which uses infrared cameras to produce visible images of invisible infrared radiation emitted by objects based on their thermal conditions. It describes how infrared radiation travels and the electromagnetic spectrum. Infrared cameras can rapidly scan objects from a distance and record temperature differences to detect issues like overheating components or insulation problems. Thermography is useful for electrical equipment maintenance and quality control in manufacturing.
How to calibrate an ir thermometer, frank liebmann, 2013 05-07
This document discusses how to properly calibrate an infrared thermometer. It describes the necessary calibration equipment including a thermal radiation source, transfer standard, and mounting device. Two traceability schemes - contact and radiometric - are covered. The calibration procedure is outlined as preparation, setting calibration points, and measuring accurately. Sources of uncertainty like emissivity and distance are evaluated in an uncertainty analysis. Results should be reported with calibration data, uncertainties, and traceability statement. Following best practices can improve infrared thermometer calibration accuracy.
Infrared Technology - Seeing the Invisible (Part Two: Camera Technology)
Through specific applications examples with sample images, this presentation introduces you to the basics of infrared (IR) imaging technology. You will learn that in the IR-world things look different and that you can visualize with an IR camera things which you cannot see with your own eyes. To understand “the why”, we touch on some basics about IR radiation and corresponding imaging sensor technologies.
THERMAL IMAGING
Thermal imaging cameras detect infrared radiation emitted by objects and produce images based on that radiation. They allow users to visualize differences in temperature that are invisible to the naked eye. The document discusses the principles and applications of thermography, including using it for electrical inspections to detect potential problems like loose connections. It provides examples of exceptions found during inspections and a priority scale for when repairs are needed. Thermal imaging has various uses in fields like firefighting, building inspections, manufacturing, and medical and military applications. It is a non-contact, rapid way to scan objects and infrastructure.
Infrared Thermography Services
VB Engineering is pioneer in providing infrared thermography services to its clients. The infrared thermal imaging services provided by us are compliant with international standards and of world class quality. our infrared thermography analysis concentrates in the areas like predictive maintenance, safety of the equipment and people working around, improvement in the production and efficiency of the equipment. Visit the following link for more details.
http://www.vbengg.com/infrared-thermography-services-india.html
FINAL PPT.pptx
The document discusses temperature measurement of crude oil using thermal sensors. It provides an overview of Indian Oil Corporation and different types of thermal sensors like thermistors, thermocouples, and RTDs. Thermocouples are most widely used in industry due to their low cost and wide temperature range, while RTDs offer higher accuracy but are more expensive. Each sensor type has advantages and limitations for different industrial applications like petrochemical plants. Accurate temperature measurement is important for process control and quality assurance.
Recommended
thermographic-testing-presentation.pdf
Thermographic testing uses infrared cameras to detect differences in surface temperatures that may indicate issues. It allows non-contact inspection of electrical systems, buildings, industrial equipment and processes. Key advantages are that it is non-destructive, fast, and can detect problems like loose connections, moisture ingress, insulation issues from a distance. Proper equipment, operator experience and understanding emissivity are important to get reliable results. A variety of applications are described like evaluating switchgear, transformers, refractory linings, vessels, flares and detecting manufacturing or process faults.
Thermographic testing-presentation
Thermographic testing uses infrared cameras to detect differences in surface temperatures that may indicate issues. It allows non-contact inspection of electrical equipment, buildings, industrial processes, and more. Key advantages are that it is non-destructive, fast, and can detect problems like loose connections, moisture ingress, insulation issues, and more from a distance. Operator experience is important to properly set up the infrared camera and interpret thermal images.
Thermography
The document discusses infrared thermography, which uses infrared cameras to produce visible images of invisible infrared radiation emitted by objects based on their thermal conditions. It describes how infrared radiation travels and the electromagnetic spectrum. Infrared cameras can rapidly scan objects from a distance and record temperature differences to detect issues like overheating components or insulation problems. Thermography is useful for electrical equipment maintenance and quality control in manufacturing.
How to calibrate an ir thermometer, frank liebmann, 2013 05-07
This document discusses how to properly calibrate an infrared thermometer. It describes the necessary calibration equipment including a thermal radiation source, transfer standard, and mounting device. Two traceability schemes - contact and radiometric - are covered. The calibration procedure is outlined as preparation, setting calibration points, and measuring accurately. Sources of uncertainty like emissivity and distance are evaluated in an uncertainty analysis. Results should be reported with calibration data, uncertainties, and traceability statement. Following best practices can improve infrared thermometer calibration accuracy.
Infrared Technology - Seeing the Invisible (Part Two: Camera Technology)
Through specific applications examples with sample images, this presentation introduces you to the basics of infrared (IR) imaging technology. You will learn that in the IR-world things look different and that you can visualize with an IR camera things which you cannot see with your own eyes. To understand “the why”, we touch on some basics about IR radiation and corresponding imaging sensor technologies.
THERMAL IMAGING
Thermal imaging cameras detect infrared radiation emitted by objects and produce images based on that radiation. They allow users to visualize differences in temperature that are invisible to the naked eye. The document discusses the principles and applications of thermography, including using it for electrical inspections to detect potential problems like loose connections. It provides examples of exceptions found during inspections and a priority scale for when repairs are needed. Thermal imaging has various uses in fields like firefighting, building inspections, manufacturing, and medical and military applications. It is a non-contact, rapid way to scan objects and infrastructure.
Infrared Thermography Services
VB Engineering is pioneer in providing infrared thermography services to its clients. The infrared thermal imaging services provided by us are compliant with international standards and of world class quality. our infrared thermography analysis concentrates in the areas like predictive maintenance, safety of the equipment and people working around, improvement in the production and efficiency of the equipment. Visit the following link for more details.
http://www.vbengg.com/infrared-thermography-services-india.html
FINAL PPT.pptx
The document discusses temperature measurement of crude oil using thermal sensors. It provides an overview of Indian Oil Corporation and different types of thermal sensors like thermistors, thermocouples, and RTDs. Thermocouples are most widely used in industry due to their low cost and wide temperature range, while RTDs offer higher accuracy but are more expensive. Each sensor type has advantages and limitations for different industrial applications like petrochemical plants. Accurate temperature measurement is important for process control and quality assurance.
Nanowire thermocouple
The document describes a nanowire thermocouple characterization platform. The platform contains a palladium-gold nanowire thermocouple, a resistive palladium heater, and two resistive palladium thermometers located on a silicon dioxide layer. It was designed to accurately measure the temperature difference between the thermocouple's hot and cold junctions when calibrating nanowire thermocouples. The platform was used to determine the relative Seebeck coefficient of a palladium-gold nanowire thermocouple, measured to be 2.963 ± 0.004 μV/K at 294 K. Nanowire thermocouples provide benefits like high spatial resolution, fast response time,
Industrial Temperature Measurement
This document provides an overview of industrial temperature measurement. It discusses different temperature scales and units used in engineering. Common temperature measurement devices are described, including liquid-in-glass thermometers, bimetallic thermometers, resistance temperature detectors (RTDs), and thermocouples. RTDs and thermocouples are electrical sensors that change resistance or voltage, respectively, with temperature. Each device type has advantages and limitations for different applications and temperature ranges. Proper setup and wiring is important to reduce measurement errors from reference junctions or lead wire resistances.
Vanjen Group IntelliSAW Overview 2018
- IntelliSAW offers temperature, partial discharge, and humidity monitoring solutions for electrical equipment using passive wireless sensors that have a 20+ year lifespan and do not require power wiring or line of sight.
- The system includes sensors, monitoring units, and a touch panel HMI platform to continuously monitor critical assets and identify failures before they cause outages or damage. Temperature sensors measure overheating, humidity sensors detect insulation breakdown, and partial discharge sensors find conductor issues.
- Sensors install directly on assets using various mounting options and communicate wirelessly to monitoring units. The system provides real-time monitoring, alarms, data logging, and communication to SCADA systems. IntelliSAW solutions offer improved safety and reliability
EXPERIMENTAL AND MEASUREMENT METHODS FINAL WORK
- There are various methods for measuring temperature and heat flux, including expansion thermometers, electrical resistance thermometers, thermocouples, and optical pyrometers.
- Expansion thermometers like liquid-in-glass and bimetallic strip thermometers are inexpensive but not very accurate, while resistance thermometers and thermocouples can more accurately measure a wide range of temperatures.
- Optical pyrometers use radiation to measure temperatures without contact and can measure extremely high temperatures, but require complex installation and maintenance.
Temperature measurement
This document discusses temperature measurement and different temperature scales. It describes common temperature measurement devices including expansion thermometers, thermocouples, RTDs, thermistors, integrated circuits, optical pyrometers, and infrared thermometers. Expansion thermometers like mercury and alcohol thermometers measure temperature by detecting the thermal expansion of liquid. Thermocouples use the Seebeck effect to convert temperature differences to voltage. RTDs measure resistance changes in materials like platinum to determine temperature.
Temperature measurement
This document discusses temperature measurement and different temperature scales. It describes common temperature measurement devices including expansion thermometers, thermocouples, RTDs, thermistors, integrated circuits, optical pyrometers, and infrared thermometers. Expansion thermometers like mercury and alcohol thermometers measure temperature by detecting the thermal expansion of liquid. Thermocouples use the Seebeck effect to convert temperature differences to voltage. RTDs measure resistance changes in materials like platinum to determine temperature.
Temperature Measurement
This document discusses various methods for temperature measurement and control. It defines temperature and describes applications for temperature measurement in physics experiments. It then covers different devices and techniques for temperature measurement, including expansion thermometers, thermocouples, resistive temperature detectors (RTDs), thermistors, and radiative methods like optical pyrometers and infrared thermometers. Specific thermocouple types and standards for platinum RTDs are outlined. Thin film and wire wound RTD construction is described. The Steinhart-Hart and B parameter equations for relating resistance to temperature in thermistors are provided. Finally, dissipation constant, thermal time constant, and resistance ratio characteristic for thermistors are defined and applications like current limiting and
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AISTech 2016 Off Gas Temperature Measurement for EAF Steelmaking
The document discusses a new optical temperature measurement (OTM) sensor for remotely measuring off-gas temperatures in electric arc furnace steelmaking. The sensor uses a proprietary technique to measure intensity at multiple wavelengths to determine temperature, which is not affected by obstructions or emissivity variations like current sensors. Laboratory and on-site tests showed the sensor measurements matched industrial furnace temperatures closely with high repeatability and accuracy from up to 30 meters away. Benefits included improved process understanding and control without requiring contact or maintenance.
Presentation on Mercury Thermometer
Daniel Gabriel Fahrenheit invented the mercury thermometer in the 17th century. Mercury thermometers use mercury as the temperature-sensitive liquid because mercury conducts heat rapidly, expands linearly as temperature increases, and does not wet or stick to the glass tube, allowing for accurate temperature measurements. Mercury thermometers can be used to measure fever, food, room, and industrial product temperatures and are inexpensive, durable, and accurate, but mercury vapor is toxic and the thermometers have a slower response time than modern digital thermometers.
Presentation Slide on mercury thermometer
Daniel Gabriel Fahrenheit invented the mercury thermometer in the 17th century. Mercury thermometers use mercury as the temperature-sensitive liquid because mercury is a rapid conductor of heat that expands linearly with temperature and has a low freezing point and high boiling point. Mercury thermometers are used to measure fever, food temperatures, room temperatures, and temperatures in industrial processes and liquids. They are inexpensive, durable, and accurate but have disadvantages such as being harder to read, not working below -39°C, and mercury vapor being poisonous.
Temperature measurement
This document discusses three common types of temperature transducers: resistance temperature detectors (RTDs), thermocouples, and thermistors. RTDs use platinum, nickel, or copper wire that changes resistance with temperature, and have high accuracy but slow response. Thermocouples are simple, rugged devices that can operate at high temperatures but have low accuracy. Thermistors have high sensitivity to small temperature changes but are fragile and have limited temperature ranges. The document provides details on materials, measurement principles, applications, and advantages/disadvantages of each type.
Comparative analysis of different temperature analysis
This document provides a comparative analysis of different temperature sensors, including liquid-in-glass thermometers, thermocouples, RTDs, thermistors, semiconductor devices, and radiation thermometers. It discusses the operating principles, advantages, disadvantages, accuracy, temperature range, response time, and applications of each sensor type. The key findings are that liquid-in-glass thermometers are inexpensive but slow and fragile, while thermocouples have a wide range but are prone to noise; RTDs are accurate but expensive; thermistors have fast response but a small range; and radiation thermometers can measure from far away but require careful calibration. The best sensor depends on the specific measurement needs and constraints.
internship report and presentation for electronics students
The document provides details about an industrial training completed by Kanumuri Yaswanth at Microlink Pvt. Ltd. on embedded systems. It discusses Microlink's focus on embedded system design and development. It describes the various projects completed during the 92-day training, including a regulated power supply, temperature controlled fan, night lamp, timer circuits, mobile charger, and IR remote control systems. The training also included hands-on experience with PCB design and manufacturing processes like artwork, screening, etching, drilling, and soldering.
Thermovision Test.ppt
This document discusses infrared thermography and its use for electrical inspections. Infrared cameras can detect higher temperatures that indicate potential problems in electrical systems. Regular infrared inspections allow issues to be found and repaired before failures occur, reducing downtime. Examples show temperature differences that would indicate repair priorities from immediate to monitoring. Infrared inspections are most effective when electrical loads are high and done periodically to inspect all equipment over time. Studies show infrared inspection programs typically yield a $4 return for every $1 spent by finding and fixing issues before costly failures.
How to Calibrate an IR Thermometer Webinar Presented by Fluke Calibration
How do you know that your infrared calibrations are accurate?
Topics discussed will include:
-Sources of uncertainty
-Calibration equipment required
-Overview of the calibration procedure
-Review of a sample uncertainty budget
-Recommendations for reporting results
UNIT I - HA.pdf
The document discusses different types of temperature sensors and how they work. The main types are contact sensors like thermocouples and resistance temperature detectors (RTDs), and non-contact sensors. Thermocouples generate voltage in proportion to temperature changes based on dissimilar metals. RTDs change resistance precisely and linearly with temperature. Thermistors are ceramic resistors that change resistance with temperature. Motion sensors detect movement using either active radar-based sensors or passive infrared sensors that detect changes in infrared light.
Basics of Temperature Measurement
Fluke offers the latest in non-contact infrared (IR) thermometers (sometimes known as infrared pyrometers) and contact thermometers, probes, accessories, and application expertise for a complete range of temperature applications. Fluke backs all of its handheld thermometers with a no-hassle 2-year warranty and the highest level of customer service.
Temperature Transducers.pptx
Thermocouples, resistance temperature detectors (RTDs), and thermistors are the three main types of temperature transducers. Thermocouples generate a voltage proportional to temperature difference by joining two dissimilar metals. RTDs measure temperature by relating the precise resistance change of materials like platinum to temperature. Thermistors are semiconductors whose high resistance changes significantly with temperature. Each transducer has advantages - thermocouples cover a wide range but with low accuracy, while RTDs and thermistors offer higher accuracy over smaller ranges. Applications include temperature monitoring and control in industries like food processing, automotive, solar energy, and healthcare.
ECE480 Tech Presentation1.1.pptx
This document discusses ultrasonic sensors and infrared temperature sensors. It provides the history and technology behind piezoelectric and electrostatic ultrasonic sensors and how they are used in industries like car sensors and assembly lines. It also explains infrared temperature sensors, how they work by detecting thermal radiation, their advantages of speed and non-contact use, and applications in manufacturing process optimization, fever detection, and glass toughening line scanning. The presentation was by a team of 5 students.
学校原版美国波士顿大学毕业证学历学位证书原版一模一样
原版一模一样【微信：741003700 】【美国波士顿大学毕业证学历学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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Industrial Temperature Measurement
This document provides an overview of industrial temperature measurement. It discusses different temperature scales and units used in engineering. Common temperature measurement devices are described, including liquid-in-glass thermometers, bimetallic thermometers, resistance temperature detectors (RTDs), and thermocouples. RTDs and thermocouples are electrical sensors that change resistance or voltage, respectively, with temperature. Each device type has advantages and limitations for different applications and temperature ranges. Proper setup and wiring is important to reduce measurement errors from reference junctions or lead wire resistances.
Vanjen Group IntelliSAW Overview 2018
- IntelliSAW offers temperature, partial discharge, and humidity monitoring solutions for electrical equipment using passive wireless sensors that have a 20+ year lifespan and do not require power wiring or line of sight.
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EXPERIMENTAL AND MEASUREMENT METHODS FINAL WORK
- There are various methods for measuring temperature and heat flux, including expansion thermometers, electrical resistance thermometers, thermocouples, and optical pyrometers.
- Expansion thermometers like liquid-in-glass and bimetallic strip thermometers are inexpensive but not very accurate, while resistance thermometers and thermocouples can more accurately measure a wide range of temperatures.
- Optical pyrometers use radiation to measure temperatures without contact and can measure extremely high temperatures, but require complex installation and maintenance.
Temperature measurement
This document discusses temperature measurement and different temperature scales. It describes common temperature measurement devices including expansion thermometers, thermocouples, RTDs, thermistors, integrated circuits, optical pyrometers, and infrared thermometers. Expansion thermometers like mercury and alcohol thermometers measure temperature by detecting the thermal expansion of liquid. Thermocouples use the Seebeck effect to convert temperature differences to voltage. RTDs measure resistance changes in materials like platinum to determine temperature.
Temperature measurement
This document discusses temperature measurement and different temperature scales. It describes common temperature measurement devices including expansion thermometers, thermocouples, RTDs, thermistors, integrated circuits, optical pyrometers, and infrared thermometers. Expansion thermometers like mercury and alcohol thermometers measure temperature by detecting the thermal expansion of liquid. Thermocouples use the Seebeck effect to convert temperature differences to voltage. RTDs measure resistance changes in materials like platinum to determine temperature.
Temperature Measurement
This document discusses various methods for temperature measurement and control. It defines temperature and describes applications for temperature measurement in physics experiments. It then covers different devices and techniques for temperature measurement, including expansion thermometers, thermocouples, resistive temperature detectors (RTDs), thermistors, and radiative methods like optical pyrometers and infrared thermometers. Specific thermocouple types and standards for platinum RTDs are outlined. Thin film and wire wound RTD construction is described. The Steinhart-Hart and B parameter equations for relating resistance to temperature in thermistors are provided. Finally, dissipation constant, thermal time constant, and resistance ratio characteristic for thermistors are defined and applications like current limiting and
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Daniel Gabriel Fahrenheit invented the mercury thermometer in the 17th century. Mercury thermometers use mercury as the temperature-sensitive liquid because mercury conducts heat rapidly, expands linearly as temperature increases, and does not wet or stick to the glass tube, allowing for accurate temperature measurements. Mercury thermometers can be used to measure fever, food, room, and industrial product temperatures and are inexpensive, durable, and accurate, but mercury vapor is toxic and the thermometers have a slower response time than modern digital thermometers.
Presentation Slide on mercury thermometer
Daniel Gabriel Fahrenheit invented the mercury thermometer in the 17th century. Mercury thermometers use mercury as the temperature-sensitive liquid because mercury is a rapid conductor of heat that expands linearly with temperature and has a low freezing point and high boiling point. Mercury thermometers are used to measure fever, food temperatures, room temperatures, and temperatures in industrial processes and liquids. They are inexpensive, durable, and accurate but have disadvantages such as being harder to read, not working below -39°C, and mercury vapor being poisonous.
Temperature measurement
This document discusses three common types of temperature transducers: resistance temperature detectors (RTDs), thermocouples, and thermistors. RTDs use platinum, nickel, or copper wire that changes resistance with temperature, and have high accuracy but slow response. Thermocouples are simple, rugged devices that can operate at high temperatures but have low accuracy. Thermistors have high sensitivity to small temperature changes but are fragile and have limited temperature ranges. The document provides details on materials, measurement principles, applications, and advantages/disadvantages of each type.
Comparative analysis of different temperature analysis
This document provides a comparative analysis of different temperature sensors, including liquid-in-glass thermometers, thermocouples, RTDs, thermistors, semiconductor devices, and radiation thermometers. It discusses the operating principles, advantages, disadvantages, accuracy, temperature range, response time, and applications of each sensor type. The key findings are that liquid-in-glass thermometers are inexpensive but slow and fragile, while thermocouples have a wide range but are prone to noise; RTDs are accurate but expensive; thermistors have fast response but a small range; and radiation thermometers can measure from far away but require careful calibration. The best sensor depends on the specific measurement needs and constraints.
internship report and presentation for electronics students
The document provides details about an industrial training completed by Kanumuri Yaswanth at Microlink Pvt. Ltd. on embedded systems. It discusses Microlink's focus on embedded system design and development. It describes the various projects completed during the 92-day training, including a regulated power supply, temperature controlled fan, night lamp, timer circuits, mobile charger, and IR remote control systems. The training also included hands-on experience with PCB design and manufacturing processes like artwork, screening, etching, drilling, and soldering.
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This document discusses infrared thermography and its use for electrical inspections. Infrared cameras can detect higher temperatures that indicate potential problems in electrical systems. Regular infrared inspections allow issues to be found and repaired before failures occur, reducing downtime. Examples show temperature differences that would indicate repair priorities from immediate to monitoring. Infrared inspections are most effective when electrical loads are high and done periodically to inspect all equipment over time. Studies show infrared inspection programs typically yield a $4 return for every $1 spent by finding and fixing issues before costly failures.
How to Calibrate an IR Thermometer Webinar Presented by Fluke Calibration
How do you know that your infrared calibrations are accurate?
Topics discussed will include:
-Sources of uncertainty
-Calibration equipment required
-Overview of the calibration procedure
-Review of a sample uncertainty budget
-Recommendations for reporting results
UNIT I - HA.pdf
The document discusses different types of temperature sensors and how they work. The main types are contact sensors like thermocouples and resistance temperature detectors (RTDs), and non-contact sensors. Thermocouples generate voltage in proportion to temperature changes based on dissimilar metals. RTDs change resistance precisely and linearly with temperature. Thermistors are ceramic resistors that change resistance with temperature. Motion sensors detect movement using either active radar-based sensors or passive infrared sensors that detect changes in infrared light.
Basics of Temperature Measurement
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Temperature Transducers.pptx
Thermocouples, resistance temperature detectors (RTDs), and thermistors are the three main types of temperature transducers. Thermocouples generate a voltage proportional to temperature difference by joining two dissimilar metals. RTDs measure temperature by relating the precise resistance change of materials like platinum to temperature. Thermistors are semiconductors whose high resistance changes significantly with temperature. Each transducer has advantages - thermocouples cover a wide range but with low accuracy, while RTDs and thermistors offer higher accuracy over smaller ranges. Applications include temperature monitoring and control in industries like food processing, automotive, solar energy, and healthcare.
ECE480 Tech Presentation1.1.pptx
This document discusses ultrasonic sensors and infrared temperature sensors. It provides the history and technology behind piezoelectric and electrostatic ultrasonic sensors and how they are used in industries like car sensors and assembly lines. It also explains infrared temperature sensors, how they work by detecting thermal radiation, their advantages of speed and non-contact use, and applications in manufacturing process optimization, fever detection, and glass toughening line scanning. The presentation was by a team of 5 students.
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学校原版美国波士顿大学毕业证学历学位证书原版一模一样
原版一模一样【微信：741003700 】【美国波士顿大学毕业证学历学位证书】【微信：741003700 】学位证，留信认证（真实可查，永久存档）offer、雅思、外壳等材料/诚信可靠,可直接看成品样本，帮您解决无法毕业带来的各种难题！外壳，原版制作，诚信可靠，可直接看成品样本。行业标杆！精益求精，诚心合作，真诚制作！多年品质 ,按需精细制作，24小时接单,全套进口原装设备。十五年致力于帮助留学生解决难题，包您满意。
本公司拥有海外各大学样板无数，能完美还原海外各大学 Bachelor Diploma degree, Master Degree Diploma
1:1完美还原海外各大学毕业材料上的工艺：水印，阴影底纹，钢印LOGO烫金烫银，LOGO烫金烫银复合重叠。文字图案浮雕、激光镭射、紫外荧光、温感、复印防伪等防伪工艺。材料咨询办理、认证咨询办理请加学历顾问Q/微741003700
留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
7:个人信誉贷款加10分
8:在国家人才网主办的国家网络招聘大会中纳入资料，供国家高端企业选择人才
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- 2. What is Thermography? Infra Red Thermography is a technique for producing a visible image of invisible (to our eyes) infra red radiation emitted by objects due to their thermal conditions
- 3. Thermography Objectives of Test • To detect hot or cold area’s • To determine absolute temperature • To view Thermal profiles • To detect temperature loss
- 4. Thermography Infra Red is part of the Electromagnetic Spectrum • • • It travels in straight lines at the speed of light The useful part is divided between Short and Long wavelengths Use of the correct wavelength is essential
- 5. Test Equipment • Hand held portable camera • Battery Powered • Operating at correct wavelength • Range…..-20°c to +1500°c • Sensitivity…..0.1°c at 30°c • Real time display • Image Recording capability
- 6. Why Thermography? • Non Contact • Rapid Scanning • Data can be recorded in differing formats • Images produced are comprehensive & reliable • Is there a viable alternative?
- 7. Principles of Operation • Object radiates infra red radiation • Temperature difference • Differences are detected and displayed visually • Emissivity values must be observed
- 8. Advantages • Non Contact • Non Intrusive • Can work at a distance • Fast and Reliable • Portable • Convincing Results
- 9. Limitations • Non Intrinsically safe • There must be a temperature difference for certain surveys • Operator experience is essential • Filters may be needed for certain applications • Sensitivity and Resolution reduce with distance and angle of view
- 10. Electrical • Switch Gear • Fuse boxes • Cable runs • Electrical connectors • Insulation • Transformers
- 14. Electrical Connections Used for the detection of; • • • Corroded connections Slack / loose connectors Connectors at too high an operating temperature Hot spots •
- 15. Transformers • Electrical connections • Insulators • Thermal profile • Operating temperature • Liquid Level
- 16. Refractory Linings • Torpedo ladles • Boilers • Furnaces • Exhausts • Ducting • Kilns
- 17. Rotary Kiln - Access Door 100 90 80 77.8°C 129.3°C 110 120 SP01 SP02 SP03 SP04 LI01
- 18. Kiln - Refractory Lining 22.5°C 48.7°C 25 30 35 40 45 SP01 S P02 S P03 22.6°C 58.5°C 30 40 50 SP02 SP03 SP01 SP04LI01
- 19. Torpedo Ladle
- 21. Building Surveys Used to detect, • • Lack of insulation Cold air infiltration Draughts Moisture traps Hot / warm air escaping Structural Integrity Heating / Cooling • • • •
- 22. Building Surveys
- 23. Building Surveys Moisture/Water Ingress • • • Leaking Roof Bridged Cavity Leaking pipes
- 24. Refinery & Petro-Chem • Vessel Surveys • Blockages • Defective lagging or insulation • Steam traps • Erosion / Corrosion
- 25. Vessel Surveys
- 26. Flare Stacks
- 27. Process Plant The above Thermograms show how Thermography can be used as a very fast and effective maintenance tool. – The image on the right has a defective cylinder
- 28. Process Plant Thermography may be used for; • • • • Corrosion surveys Ensuring valve operation Leaks Blockages
- 29. Process Plant • Hot spots • Cold spots (Cryogenics) • Damaged or missing insulation • Tank levels
- 30. Miscellaneous • The detection of process or manufacturing faults • Can be used as a quality control tool