Engineering Stack Exchange
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Questions tagged [ultrasound]

25 questions
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I don't understand a simulation result of frequency vibration analysis of ultrasonic tranducer

I am building a ultrasonic transducer like this (with double-exponential (75%-25%) match and 2 ring PZT8 50x20x6.5 (for the moment I do not take account of pre-stress on bolt) : When I simulate the 2 piezo ring I got 33kHz resonant frequency. So in…
rdpdo
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What sensors/methods can be used from the roadside to determine if a truck is loaded or empty - without weighing it?

What sensor, using what physical principle, can penetrate a closed rectangular object like the trailer of a truck and tell if the space is empty or loaded? Why is this question relevant? One of the biggest problems of maintaining & building roads is…
Martin Knoche
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How to create a 3D model of a person's veins using ultrasound?

How to create a 3D model of a person's veins using ultrasound? How to do something like this, CARTOSOUND® Module: This 3D ultrasound technology gives you all the benefits of traditional intracardiac echo Why is most ultrasound 2D? Is 3D…
Dale
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Can ultrasonic sound pass through solid medium?

For my electronic project, I have been searching the internet for a non invasive flow meter that does not require disassembly. I have found an ultrasonic measurement technique that use the clamp on method (just fitting on to the pipe) for flow…
Taha
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Can I use a water-based ultrasound-cleaner with oil?

I'd like to clean my bicycle chain with as little effort as possible, so I thought an ultra-sound cleaner would be best. Professional oil-based ultrasound cleaners are way too expensive for a hobbyist, but water-based ultrasound cleaners are pretty…
Jann Poppinga
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Is it possible to silver solder a reliable grounding connection to a stainless steel ultrasonic cleaner tank?

My ultrasonic cleaner has a stainless steel tank with a threaded grounding stud for fastening a mains earth wire. I tried to tighten nut that fastens the ground terminal to the stud, but the stud sheared cleanly off the tank. It appears it was…
user148298
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What's the best way to get an ultrasonic sensor that can vary its operating frequency

Long story short I'm looking to build an ultrasonic sensor that can also be used to communicate with a seperate sensor. (So it must be able to send out a pitch around ~42kHz, but also alter the pitch so that a second sensor could listen to the…
thansen0
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Is there a difference between piezo ceramic disc transducer and a piezo ceramic bender

I really do apologise if this is a stupid question but I for the life of me can't find an answer. I need to do a project where I measure the liquid of water in a tank using ultrasound and am planning on doing it with Texas Instruments TDC1000. The…
Andrew Knoesen
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Measuring intensity of a radio wave reflected from a metal plate

I am building a Project that can pinpoint location of a pen or any object (something as small as 0.5 mm radius sphere) placed on a flat screen. I am using a ultrasound sensor (initially but i can switch to a different sensor if the situation…
user177195
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Is it possible to calculate the shear wave velocity in lab using ultrasonic test?

I have an ultrasonic testing equipment that can only measure the direct and semi-direct ( (a) and (b) in the image below): I can measure compression wave velocities fairly easily, but I would like to know if it is possible to measure the shear wave…
Mark
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Measuring flow of polyol with ultrasonic flow meter

Our company is installing flow meters on an old polyurethane foam machine. After some research, ultrasonic flow meters were chosen as they have no moving parts and are easy to clean. Polyurethane foam is produced by mixing polyol with isocyante…
oorst
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What is the smallest flaw that can be detected by ultrasonic technology?

Ultrasonic transducer is used to detect flaws. What is the smallest flaw that can be detected by ultrasonic technology? One thing I know is that higher the frequency, higher is the sensitivity of the transducer i.e. smaller is the size of the flaw…
tjv
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How to Modeling Ultrasound Propagation & Energy Distribution From a Curved Surface Through Three Distinct Homogenous Media?

I am working on a problem involving a cylindrical US transducer designed for radial emission. Positioned vertically (axial length perpendicular to the ground), the transducer emits energy circumferentially in 360 degrees from all points along its…
pHBio
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Is there a probe sonicator horn made of carborundum?

I consider buying a probe sonicator for an experiment, which needs the horn tip to be made of silicon carbide (aka carborundum), or at least surface covered with it. Is it even possible to make such a thing, given that sound propagates better when…
Paul Kolk
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Material for Absorbent Cylinder in Ultrasonic Humidifiers

I’m working on a project using micro-perforated ultrasonic cells for plant cultivation, and during benchmarking of commercial humidifiers, I came across a design that uses an absorbent cylinder to supply water to the ultrasonic cell and a spring to…
rodolaf
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