Page 1 of 10 - About 96 Essays
  • Difference Between Imm And Mem

    when integrated with an ASIC (Application Specific Integrated Circuit) reduces the need for complex external circuitry and provides a more reliable operation. R[6]. MEMS was developed with a lot of technologies and process similar to the IC industry but, there are some process and applications that have been tailored for MEMS. 1.2. MEMS Transducers: R[7]: A MEMS transducer involves transfer of energy i.e it converts energy in form to another. R[8]The input or stimuli for a transducer can be anything like a mechanical, electrical, thermal, fluidic etc. MEMS devices usually convert mechanical movements to electrical signals. For example, a MEMS microphone converts sound into electrical impulse. An actuator is used for actuating microstructures and requires energy to provide motion. It converts energy into a mechanical motion. Actuators require high power at the input. The amount of actuation required depends on the input to the actuator. The output of the actuator is seen as the system response (actuated energy). Some examples are electrostatic, electrothermal actuators. A sensor on the other hand receives the signals (usually from a transducer) like sound in a microphone and responds to that signal. The physical quantity that is being measured or sensed is called as a measurand which is usually the force, temperature etc. and the output is the measurement of the sensor after processing. Sensors require low input at the input than an actuator. Some examples are biomedical…

    Words: 1153 - Pages: 5
  • Pros And Cons Of Ultrasound Transducers

    “It should be emphasized that routine decontamination procedures and disinfection of the individual ultrasound probes only take a few seconds. Therefore, in our opinion, there is actually no reason that such a simple disinfection procedure should not be performed every time after using an ultrasound probe before using it on the next patient” (Sartoretti 2017). This quote is the reason this research was performed. Cleaning equipment, especially transducers, is something sonographers should be…

    Words: 278 - Pages: 2
  • Ultrasound Case Study

    The transducer must be covered before insertion. The most preferred option is using a cover that is at least 38 microns thick. Examples of these include purpose made lubricated sheathes, surgical drape, surgical gloves or condoms. The transducer drape should fully cover the probe, minimising the risk of possible rupture by over stretching. At the end of the examination, the disposable cover should be removed with a gloved hand and discarded, taking care not to contaminate the surface of the…

    Words: 742 - Pages: 3
  • Benefits Of Therapeutic Ultrasound

    tissues facilitates healing and decreases inflammation but it also causes muscles to relax. After the muscles are heated to 40-45 degrees Celsius, the tissues are relaxed and can be stretched. Stretching of the tissues can be done for 10 minutes following the heating which will decrease overall pain and soreness. (Speed, 2001). Vasodilation, which is the opening of blood vessels, is another benefit of therapeutic ultrasound. (Davis). The increased blood flow to the damaged area speeds up the…

    Words: 1353 - Pages: 5
  • Frog Muscle Lab Report

    A single frog leg that was severed from the body at the hip joint was dissected to isolate and expose the gastrocnemius muscle. The gastrocnemius muscle was first separated from the tibiofibula bone, but left attached to the knee and the Achilles tendon. A 15 cm long piece of strong thread was tied tightly around the Achilles tendon of the heel of the frog for later attachment of the muscle to the force transducer equipment. The Achilles tendon below the tied string was then severed and the…

    Words: 846 - Pages: 4
  • Fish Finder Research Paper

    quick zoom feature lets you focus on an area to find the most fish. You won’t spend a lot of time looking around with the quick zoom feature. You’ll be able to see the type of fish you’re looking at and decide if it’s the one you want. It’s an excellent way to get an idea of what fish are in your area, and whether you want to try and reel them in. Dual Frequency The dual frequency broadband sound transducer notifies you quickly. You can toggle the frequency views to get the most out of the…

    Words: 769 - Pages: 4
  • Essay On Transvaginal Ultrasound

    imaging modality.12 Ultrasound examinations consist of sound beams originating in the transducer ( a handheld Ultrasound device connected to the ultrasound machine, containing crystals which vibrate with electricity) which produce sound waves.9,12 These sound waves travel into the body, coupled by gel and are reflected back to the transducer and results in producing diagnostic images on the ultrasound monitor.9,12 Most consider French physicist Pierre Curie’s discovery of piezoelectricity in…

    Words: 878 - Pages: 4
  • The Importance Of Diagnostic Medical Sonography

    A pregnant woman needs her pregnancy to be monitored, so her doctor refers her to a diagnostic medical sonographer. Diagnostic medical sonographers also known as ultrasound technicians use specialized imaging equipment to produce images of a patient’s internal organs. Abdominal, breast, musculoskeletal, neurological, obstetric, and gynecologist sonographers are different types of ultrasound technicians. All sonographers place an ultrasound transducer on the part of the body that is being…

    Words: 1132 - Pages: 5
  • Terminology Definitions For Spur Gear

    >100Ω Size 34g Sensing element PZT ceramic Sensing structure Shear mode Case material Stainless 5.33 Accelerometer Specification Table 4: Accelerometer Specification CHAPTER 6 vibration measurement A number of transdures types exist for measuring machine vibration, including proximity, probe, velocity transducers, accelerometers etc. the measurement of machine casing acceleration is the most common method used for gear fault detection. This is normally achieved by…

    Words: 2230 - Pages: 9
  • Summary: The Gastrointestinal System

    Software. Graphs and tables were generated by using Microsoft Excel. A two centimeter section of Oryctolagua cuniculus small intestine was attached to a wire hook and transducer via string. Along the wire hook was a small air line to supply oxygen to the small intestine while in solution. To attach the small intestine to the transducer, the small intestine was pierced at both ends with the string looping through and tied. A circulating water bath set at 37°C with four curvettes. Three of the…

    Words: 786 - Pages: 4
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