This document describes inductive displacement and position sensors that can be used inside hydraulic cylinders and gas pressure springs to monitor and control movement. The sensors use eddy current technology with an aluminum target to provide linear displacement measurement over a range of 20-200mm with high accuracy even in temperatures from -40 to 150°C. They can be customized for integration directly into cylinders and springs used in applications like vehicle tailgates and washing machines to provide compact, low-cost sensing solutions.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
International Journal of Engineering Inventions (IJEI) provides a multidisciplinary passage for researchers, managers, professionals, practitioners and students around the globe to publish high quality, peer-reviewed articles on all theoretical and empirical aspects of Engineering and Science.
Different Types of Transducers in Market; Gefran Pressure Transducer Availabl...Extruder Supplies
For the units to last for long ensure that you buy them from a reputable store. This is to increase the chances of buying high-quality units. Extruder Supplies stock different types of transducers such as Gefran pressure transducers. We have different types and sizes of Gefran pressure controller.
Measurement of Motion, Force
and Torque - Displacement and speed measurement for translational and rotation systems using
potentiometers, LVDT and RVDT, Encoders, accelerometers and gyroscopes. Force and Torque
measurements using strain gauges and piezoelectric pickups.
In any vacuum system it is most important to know accurately the level of vacuum on real time basis as even a minor change in vacuum can result in process parameters going haywire and product quality getting adversely affected. In modern day vacuum systems we use sophisticated vacuum gauges to know the vacuum accurately. In this blog post various kinds of vacuum gauges have been described. Limitations and advantages of these gauges have also been brought out so that engineers using vacuum can select appropriate gauge for the application. Various practical aspects about use of vacuum gauges have also been detailed in this blog post.
International Journal of Engineering Research and DevelopmentIJERD Editor
Electrical, Electronics and Computer Engineering,
Information Engineering and Technology,
Mechanical, Industrial and Manufacturing Engineering,
Automation and Mechatronics Engineering,
Material and Chemical Engineering,
Civil and Architecture Engineering,
Biotechnology and Bio Engineering,
Environmental Engineering,
Petroleum and Mining Engineering,
Marine and Agriculture engineering,
Aerospace Engineering.
International Journal of Engineering Inventions (IJEI) provides a multidisciplinary passage for researchers, managers, professionals, practitioners and students around the globe to publish high quality, peer-reviewed articles on all theoretical and empirical aspects of Engineering and Science.
Different Types of Transducers in Market; Gefran Pressure Transducer Availabl...Extruder Supplies
For the units to last for long ensure that you buy them from a reputable store. This is to increase the chances of buying high-quality units. Extruder Supplies stock different types of transducers such as Gefran pressure transducers. We have different types and sizes of Gefran pressure controller.
Measurement of Motion, Force
and Torque - Displacement and speed measurement for translational and rotation systems using
potentiometers, LVDT and RVDT, Encoders, accelerometers and gyroscopes. Force and Torque
measurements using strain gauges and piezoelectric pickups.
In any vacuum system it is most important to know accurately the level of vacuum on real time basis as even a minor change in vacuum can result in process parameters going haywire and product quality getting adversely affected. In modern day vacuum systems we use sophisticated vacuum gauges to know the vacuum accurately. In this blog post various kinds of vacuum gauges have been described. Limitations and advantages of these gauges have also been brought out so that engineers using vacuum can select appropriate gauge for the application. Various practical aspects about use of vacuum gauges have also been detailed in this blog post.
Ultrasonic Wind Speed Sensor CV7-OEM Options
These industrial option are "Din" boxes with:
• 1x connection for 24VDC/AC power supply
• 1x connection for CV7-V data
• 1x 12 V connection for CV7-V power supply
• Galvanic isolation between power supply and analog outputs
• Galvanic isolation between power supply and sensor's power supply
• The sensor input is optocoupled.
Microcontroller Based Automatic Sprinkler Irrigation SystemIJMER
Microcontroller based Automatic Sprinkler System is a new concept of using
intelligence power of embedded technology in the sprinkler irrigation work. Designed system replaces
the conventional manual work involved in sprinkler irrigation to automatic process. Using this system a
farmer is protected against adverse inhuman weather conditions, tedious work of changing over of
sprinkler water pipe lines & risk of accident due to high pressure in the water pipe line. Overall
sprinkler irrigation work is transformed in to a comfortableautomatic work. This system provides
flexibility & accuracy in respect of time set for the operation of a sprinkler water pipe lines. In present
work the author has designed and developed an automatic sprinkler irrigation system which is
controlled and monitored by a microcontroller interfaced with solenoid valves.
Automatic Irrigation System is a prototype for a system of irrigation or watering automatically based on the Arduino microcontroller integrated with proximity sensors (Ultrasonic Sensor), the DC motor and the pump using LED indicator lights.
Made by :
Andika Jamal Nurganda 151611004
Putri Sintia Sari 151611021
Rizki Verdian 151611025
Refrigeration and Air Conditioning Engineering
Polytechnic State of Bandung
2016
Ultrasonic Wind Speed Sensor CV7-OEM Options
These industrial option are "Din" boxes with:
• 1x connection for 24VDC/AC power supply
• 1x connection for CV7-V data
• 1x 12 V connection for CV7-V power supply
• Galvanic isolation between power supply and analog outputs
• Galvanic isolation between power supply and sensor's power supply
• The sensor input is optocoupled.
Microcontroller Based Automatic Sprinkler Irrigation SystemIJMER
Microcontroller based Automatic Sprinkler System is a new concept of using
intelligence power of embedded technology in the sprinkler irrigation work. Designed system replaces
the conventional manual work involved in sprinkler irrigation to automatic process. Using this system a
farmer is protected against adverse inhuman weather conditions, tedious work of changing over of
sprinkler water pipe lines & risk of accident due to high pressure in the water pipe line. Overall
sprinkler irrigation work is transformed in to a comfortableautomatic work. This system provides
flexibility & accuracy in respect of time set for the operation of a sprinkler water pipe lines. In present
work the author has designed and developed an automatic sprinkler irrigation system which is
controlled and monitored by a microcontroller interfaced with solenoid valves.
Automatic Irrigation System is a prototype for a system of irrigation or watering automatically based on the Arduino microcontroller integrated with proximity sensors (Ultrasonic Sensor), the DC motor and the pump using LED indicator lights.
Made by :
Andika Jamal Nurganda 151611004
Putri Sintia Sari 151611021
Rizki Verdian 151611025
Refrigeration and Air Conditioning Engineering
Polytechnic State of Bandung
2016
L'IMPRIMERIE UTIM
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Post-CMOS and Post-MEMS compatible flexible skin technologiesKaranvir Singh
This ppt reviews flexible skin technologies that
enable monolithic integration of silicon CMOS circuits and high temperature MEMS devices on flexible substrates. The monolithic integration is achieved by fabricating CMOS circuits or MEMS sensors on silicon wafers first and then forming flexible skins by post-processing. In this sense, these flexible skin technologies are termed as post-CMOS and -MEMS compatible. Most flexible devices developed using these technologies share a common structure—silicon islands connected by flexible cables.
AS5047P Magnetic Position Sensor in Motor Control SystemsHEINZ OYRER
Unparalleled accuracy over full temperature range at high speed in latest version of ams’ 47 series magnetic position sensor
New AS5047P with incremental ABI output is an ideal replacement for optical encoders and resolvers in motor and motion control systems that enables dramatically lower system costs while still providing high accuracy performance
For samples and technical information, go to www.ams.com/AS5047P. Video demos and more of ams’ world of Position Sensors you can find at www.ams.com/magnetic-position-sensors.
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1. A148_e
Inductive displacement and position sensors
induSENSOR
Low-cost sensors for cylinder applications
Gas pressure springs are often used to reinforce the Sensor data
muscle power of persons, providing controlled lifting - Measurement ranges: 20…200 mm (other
and lowering of covers, hoods, flaps, etc. For exam- measurement ranges on request)
ple, tailgates on motor vehicles are fitted with gas - Accuracy: <±1% FSO over complete
pressure springs to ease raising the rear door. temperature range
Hydraulic and pneumatic absorbers, which are used - Temperature range: -40…+150°C
to retard movements in a controlled manner, are - Resolution: 11 bit
constructed similar to gas pressure springs. - Bandwidth: Up to 1 kHz
These systems act completely passively and must
therefore be operated by actuators or by muscle
power. Of a basic similar construction are actuators,
such as for example hydraulic or pneumatic cylin-
ders which however can execute active movements.
In practice mixed systems, such as hydraulic absor-
bers with gas pressure springs, are also found. In the
following all systems (absorbers or gas pressure
springs or also hydraulic and pneumatic cylinders)
are designated as cylinders for the sake of simplicity.
Since these systems are also associated with
movement, it is often necessary to control this Displacement sensor for hydraulic cylinder for trunk lid
movement. Therefore, the movement must be
monitored, normally by using displacement or
position sensors. Pure position sensors are generally
proximity switches which acquire the movement of a
piston in the cylinder at the end positions. In contrast,
for a closed-loop control, displacement sensors are
used which measure the movement continuously
and supply a linear signal.
Frictional damper for
washing machines with
integral sensor
2. Applikation
Simple sensors, for example draw-wire sensors, can For applications in gas pressure springs or hydraulic
be fitted outside of the cylinder. Although the installa- cylinders, which are employed in large quantities, for
tion is in this case very easy, there is a serious disad- example in cars, the sensor can be simplified further.
vantage in that the sensors are not protected and can Here, for example, instead of an (additional) alumi-
be easily damaged. The best solution is therefore to num target, just the piston rod itself is used as the
mount the sensors inside the cylinder. Although they target. In this way an additional component is no
must withstand the pressure, they are safely protec- longer needed, saving costs. The sensor itself is then
ted from the surroundings. A further advantage is a low-cost component, which can be inexpensively
that the cylinder size does not change or only slightly manufactured on a large-scale, for example, by
changes. plastic injection molding. With the integrated ASIC
There are displacement sensors for use in cylinders electronics and molded-on plug or cable connecti-
from Micro-Epsilon in a number of versions based on on, the sensor is extremely small for installation and
the eddy current principle. The sensor consists of a can be ideally adapted to the cylinder so that a
coil which is excited with an alternating voltage. This compact and rugged unit is produced.
produces an electromagnetic alternating field which Actual application examples are dampers for
induces eddy currents in a target material. The eddy washing machines or hydraulic cylinders for the trunk
currents react on the coil according to Lenz's Law lid actuation on cars. Anywhere where a compact
and are therefore attenuated. The attenuation is construction or stable, linear measurement signals
processed in the evaluation electronics and output are needed, displacement sensors for integration
as a linear signal. from Micro-Epsilon are the ideal solution.
Standard sensors for industrial applications use an
aluminum tube or ring as the target which is mounted
in the piston rod. The dead range at the start and end
of the coil, which cannot be used for the measure-
ment, is very slight and in extreme cases may be only
5 mm. As a result, in comparison to magnetostrictive
sensors, a substantially shorter installation length for
the sensors is possible.
Customized displacement sensors for use in
large-scale production
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