An ultrasound machine uses a transducer probe to produce and receive ultrasound pulses that are used to form images of internal tissues and organs. It consists of a transducer, central processing unit, keyboard, display, storage device and printer. The transducer contains piezoelectric crystals that convert electrical signals to ultrasound pulses and reflected ultrasound echoes back to electrical signals. These signals are processed by the CPU to produce images on the display based on differences in tissue reflection and absorption of the ultrasound pulses. Ultrasound machines are used for diagnostic purposes in various medical fields such as cardiology, gynecology and urology.
Learn from our Slideshare about the differences between ultrasound transducers. We also cover tips on how to treat your probes and how to select the right one.
An overview of Doppler Effect in Ultrasonography - the medical imaging of the body using Ultrasound.
Includes Colour Doppler, Power Doppler, Spectral Doppler, Continuous Wave Doppler, Pulsed Wave Doppler, and comparisons with other Radiographic imaging modalities.
Learn from our Slideshare about the differences between ultrasound transducers. We also cover tips on how to treat your probes and how to select the right one.
An overview of Doppler Effect in Ultrasonography - the medical imaging of the body using Ultrasound.
Includes Colour Doppler, Power Doppler, Spectral Doppler, Continuous Wave Doppler, Pulsed Wave Doppler, and comparisons with other Radiographic imaging modalities.
Beginning with basic physics of ultrasound, in the presentation how an ultrasound image is constructed is tried to be revealed by investigation of the wave propagation through the tissue.
Usg transducer and basic principles of ultrasound Doppler, this slide describe the basic physics of ultrasound transducer and Doppler , must know thing is given in this presentaion. Good review for radiology resident. Thanks.
Beginning with basic physics of ultrasound, in the presentation how an ultrasound image is constructed is tried to be revealed by investigation of the wave propagation through the tissue.
Usg transducer and basic principles of ultrasound Doppler, this slide describe the basic physics of ultrasound transducer and Doppler , must know thing is given in this presentaion. Good review for radiology resident. Thanks.
Training Material inherited form Philips Basics of Ultrasonography. Covers the fundamentals of Ultrasound Waveform, Piezoelectric Effect, Phased Echo Concept, Goal of Ultrasound, Ultrasound Image Construction process, Types of Resolution, Probe Internals, The Doppler Effect, Spectrum Waveform and concept, Color Doppler, Components of Ultrasound.
Open Systems Interconnection (OSI) is a set of internationally recognized, non-proprietary standards for networking and for operating system involved in networking functions.
Description about Infrared Rays ,discovery of infrared rays ,process of discovery of infrared rays ,history of infrared rays ,today's usage of infrared rays ,properties of infrared rays ,the electromagnetic spectrum ,about infrared radiations ,futre usage of infrared rays/radiations ,dagerous about infrared rays ,protection from infrared rays
Ultrasonic sensor, ultrasonic transducer, ultrasound machine partsBryan Len
ultrasonic sensor and transducer repair.Anything ultrasound related ? Get expert help. Reduce your cost . We care , repair, replace ultrasonic sensor of all brands. We repair all. Do not throw your old one away. Its repairable. http://www.probelogic.com.au/
For intraoperative monitoring, it is most
important to know how the various nuclei of the
ascending auditory pathways are connected and
how these nuclei together with the fiber tracts
that connect them produce electrical activity
when the ear is stimulated with transient sounds.
Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
In this month's edition, along with this month's industry news to celebrate the 13 years since the group was created we have articles including
A case study of the used of Advanced Process Control at the Wastewater Treatment works at Lleida in Spain
A look back on an article on smart wastewater networks in order to see how the industry has measured up in the interim around the adoption of Digital Transformation in the Water Industry.
Cosmetic shop management system project report.pdfKamal Acharya
Buying new cosmetic products is difficult. It can even be scary for those who have sensitive skin and are prone to skin trouble. The information needed to alleviate this problem is on the back of each product, but it's thought to interpret those ingredient lists unless you have a background in chemistry.
Instead of buying and hoping for the best, we can use data science to help us predict which products may be good fits for us. It includes various function programs to do the above mentioned tasks.
Data file handling has been effectively used in the program.
The automated cosmetic shop management system should deal with the automation of general workflow and administration process of the shop. The main processes of the system focus on customer's request where the system is able to search the most appropriate products and deliver it to the customers. It should help the employees to quickly identify the list of cosmetic product that have reached the minimum quantity and also keep a track of expired date for each cosmetic product. It should help the employees to find the rack number in which the product is placed.It is also Faster and more efficient way.
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
Explore the innovative world of trenchless pipe repair with our comprehensive guide, "The Benefits and Techniques of Trenchless Pipe Repair." This document delves into the modern methods of repairing underground pipes without the need for extensive excavation, highlighting the numerous advantages and the latest techniques used in the industry.
Learn about the cost savings, reduced environmental impact, and minimal disruption associated with trenchless technology. Discover detailed explanations of popular techniques such as pipe bursting, cured-in-place pipe (CIPP) lining, and directional drilling. Understand how these methods can be applied to various types of infrastructure, from residential plumbing to large-scale municipal systems.
Ideal for homeowners, contractors, engineers, and anyone interested in modern plumbing solutions, this guide provides valuable insights into why trenchless pipe repair is becoming the preferred choice for pipe rehabilitation. Stay informed about the latest advancements and best practices in the field.
Saudi Arabia stands as a titan in the global energy landscape, renowned for its abundant oil and gas resources. It's the largest exporter of petroleum and holds some of the world's most significant reserves. Let's delve into the top 10 oil and gas projects shaping Saudi Arabia's energy future in 2024.
Student information management system project report ii.pdfKamal Acharya
Our project explains about the student management. This project mainly explains the various actions related to student details. This project shows some ease in adding, editing and deleting the student details. It also provides a less time consuming process for viewing, adding, editing and deleting the marks of the students.
About
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Technical Specifications
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
Key Features
Indigenized remote control interface card suitable for MAFI system CCR equipment. Compatible for IDM8000 CCR. Backplane mounted serial and TCP/Ethernet communication module for CCR remote access. IDM 8000 CCR remote control on serial and TCP protocol.
• Remote control: Parallel or serial interface
• Compatible with MAFI CCR system
• Copatiable with IDM8000 CCR
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
Application
• Remote control: Parallel or serial interface.
• Compatible with MAFI CCR system.
• Compatible with IDM8000 CCR.
• Compatible with Backplane mount serial communication.
• Compatible with commercial and Defence aviation CCR system.
• Remote control system for accessing CCR and allied system over serial or TCP.
• Indigenized local Support/presence in India.
• Easy in configuration using DIP switches.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
Advancements in technology unveil a myriad of electrical and electronic breakthroughs geared towards efficiently harnessing limited resources to meet human energy demands. The optimization of hybrid solar PV panels and pumped hydro energy supply systems plays a pivotal role in utilizing natural resources effectively. This initiative not only benefits humanity but also fosters environmental sustainability. The study investigated the design optimization of these hybrid systems, focusing on understanding solar radiation patterns, identifying geographical influences on solar radiation, formulating a mathematical model for system optimization, and determining the optimal configuration of PV panels and pumped hydro storage. Through a comparative analysis approach and eight weeks of data collection, the study addressed key research questions related to solar radiation patterns and optimal system design. The findings highlighted regions with heightened solar radiation levels, showcasing substantial potential for power generation and emphasizing the system's efficiency. Optimizing system design significantly boosted power generation, promoted renewable energy utilization, and enhanced energy storage capacity. The study underscored the benefits of optimizing hybrid solar PV panels and pumped hydro energy supply systems for sustainable energy usage. Optimizing the design of solar PV panels and pumped hydro energy supply systems as examined across diverse climatic conditions in a developing country, not only enhances power generation but also improves the integration of renewable energy sources and boosts energy storage capacities, particularly beneficial for less economically prosperous regions. Additionally, the study provides valuable insights for advancing energy research in economically viable areas. Recommendations included conducting site-specific assessments, utilizing advanced modeling tools, implementing regular maintenance protocols, and enhancing communication among system components.
7. SOUND:
• Sound is a mechanical, longitudinal wave that travels in a
straight line
8. WHAT IS ULTRASOUND?
• Ultrasound is a mechanical, longitudinal wave with a
frequency exceeding the upper limit of human hearing, which
is 20,000 Hz or 20 kHz.
Medical Ultrasound 2MHz to 16MHz
13. THE RETURNING ECHO:
• Reflected echoes return to the scanhead where the piezoelectric elements convert the
ultrasound wave back into an electrical signal
• The electrical signal is then processed by the ultrasound system
14. PIEZOELECTRIC MATERIAL
• AC applied to a piezoelectric crystal causes it to
expand and contract – generating ultrasound.
15. PIEZOELECTRIC CRYSTALS
• The thickness of the crystal determines the
frequency of the scanhead
Low Frequency
3 MHz
High Frequency
10 MHz
16. FREQUENCY VS. RESOLUTION:
The frequency also affects the QUALITY of the ultrasound image
• The HIGHER the frequency, the BETTER the resolution
• The LOWER the frequency, the LESS the resolution
17. FREQUENCY VS. RESOLUTION
• A 12 MHz transducer has very good resolution, but
cannot penetrate very deep into the body
• A 3 MHz transducer can penetrate deep into the
body, but the resolution is not as good as the 12
MHz
21. IMAGE FORMATION
Electrical signal produces ‘dots’ on the screen
Brightness of the dots is proportional to the
strength of the returning echoes
22. INTERACTIONS OF ULTRASOUND
WITH TISSUE
• Reflection
• The ultrasound reflects off tissue and returns to
the transducer, the amount of reflection.
• The ultrasound image is formed from reflected
echoes
transducertransducer
23. ATTENUATION & GAIN
Sound is attenuated by tissue
More tissue to penetrate = more
attenuation of signal
Compensate by adjusting gain based on
depth.
24. ULTRASOUND GAIN
• Gain controls
• receiver gain only
does NOT change power output
• Increase gain = brighter
• Decrease gain = darker
Transducer probe - probe that sends and receives the sound waves
Central processing unit (CPU) - computer that does all of the calculations and contains the electrical power supplies for itself and the transducer probe
Transducer pulse controls - changes the amplitude, frequency and duration of the pulses emitted from the transducer probe
Display - displays the image from the ultrasound data processed by the CPU
Keyboard/cursor - inputs data and takes measurements from the display
Disk storage device (hard, floppy, CD) - stores the acquired images
Printer - prints the image from the displayed data
Ultrasound is an oscillating sound pressure wave with a frequency greater than the upper limit of the human Ultrasound is thus not separated from 'normal' (audible) sound by differences in physical properties, only by the fact that humans cannot hear it. Ultrasonic devices are used to detect objects and measure distances. Ultrasonic imaging (sonography) is used in both veterinary medicine and human medicine. In the nondestructive testing of products and structures, ultrasound is used to detect invisible flaws. Industrially, ultrasound is used for cleaning and for mixing, and to accelerate chemical processes. Animals such as bats and porpoises use ultrasound for locating prey and obstacles aring range.
Pulse generator + oscillator +time
The 555 timer IC is an integrated circuit (chip) used in a variety of timer, pulse generation, and oscillator applications. The 555 can be used to provide time delays, as an oscillator, and as a flip-flop element
Sound requires a medium through which to travel
oscillations/sec = frequency - expressed in Hertz (Hz)
Produced by passing an electrical current through a piezoelectrical crystal
These elements convert electrical energy into a mechanical ultrasound wave
The ultrasonic receiver circuit uses an ultrasonic receiver transducer to sense ultrasonic signals. It also uses a two-stage amplifier, a rectifier stage, and an operational amplifier in inverting mode. Output of op-amp is connected to a relay through a complimentary relay driver stage. A 9-volt battery eliminator can be used for receiver circuit, if required. When switch S1 of transmitter is pressed, it generates ultrasonic sound. The sound is received by ultrasonic receiver transducer. It converts it to electrical variations of the same frequency. These signals are amplified by transistors T3 and T4. The amplified signals are then rectified and filtered. The filtered DC voltage is given to inverting pin of op-amp IC2. The non- inverting pin of IC2 is connected to a variable DC voltage via preset VR2 which determines the threshold value of ultrasonic signal received by receiver for operation of relay RL1. The inverted output of IC2 is used to bias transistor T5. When transistor T5 conducts, it supplies base bias to transistor T6. When transistor T6 conducts, it actuates the relay. The relay can be used to control any electrical or electronic equipment. Important hints: 1. Frequency of ultrasonic sound generated can be varied from 40 to 50 kHz range by adjusting VR1. Adjust it for maximum performance. 2. Ultrasonic sounds are highly directional. So when you are operating the switch the ultrasonic transmitter transducer of transmitter should be placed towards ultrasonic receiver transducer of receiver circuit for proper functioning. 3. Use a 9-volt PP3 battery for transmitter. The receiver can be powered from a battery eliminator and is always kept in switched on position. 4. For latch facility use a DPDT relay if you want to switch on and switch off the load. A flip-flop can be inserted between IC2 and relay. If you want only an ‘ON-time delay’ use a 555 only at output of IC2. The relay will be energised for the required period determined by the timing components of 555 monostable multivibrator. 5. Ultrasonic waves are emitted by many natural sources. Therefore, sometimes, the circuit might get falsely triggered, espically when a flip-flop is used with the circuit, and there is no remedy for that.
Reflection
The ultrasound reflects off tissue and returns to the transducer, the amount of reflection depends on differences in acoustic impedance
The ultrasound image is formed from reflected echoes
Sound is attenuated as it goes deeper into the body
Location of the dots is determined by travel time. The velocity in tissue is assumed constant at 1540m/sec
Distance = Velocity Time
Attenuation
Defined - the deeper the wave travels in the body, the weaker it becomes -3 processes: reflection, absorption, refraction
Air (lung)> bone > muscle > soft tissue >blood > water