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Questions tagged [ultrasound]

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Can I use a single flat sheet of metal as an ultrasonic horn?

I want to make an ultrasonic cutter for home use projects, something like this or there are many online videos of industrial ultrasonic cutters in e.g. the food industry. A typical design of an ...
Oliver Walters's user avatar
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0 answers
20 views

Is it possible / practical to use a directional speaker as a "sound flashlight"?

E.g. use the direction the sound is coming from and the intensity to tell where the object is located at, and the frequency to tell the color of whatever this "flashlight" is pointing at (e....
qwerty_99's user avatar
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0 answers
63 views

Shielding or jamming ultrasound waves using software

I've downloaded SoniControl and it works somewhat well as a jammer, but I am looking for more options. I'm trying to shield from or jam Ultrasonic Cross-Device Tracking (uxDT). (See "data over ...
user40996's user avatar
3 votes
0 answers
44 views

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 ...
rdpdo's user avatar
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0 answers
20 views

Is it possible to set up an ultrasonic range-finding system using a separate transmitter and receiver across 30m distance?

I need to set up a system capable of detecting the distance between an object moving further away and an anchor point. This object would be traveling through a slightly curved tunnel (of 1m diameter), ...
Samuel's user avatar
  • 1
0 votes
0 answers
71 views

Effect of wind on ultrasound sensor

For example, if I have an ultrasoundsensor 1 m above the ground while there is a wind speed of 5 m/s, a rough estimate of the horizontal displacement of the beam would be $$ t \approx 2 \frac{1}{343} =...
Thomas Wagenaar's user avatar
1 vote
2 answers
90 views

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,...
Jann Poppinga's user avatar
1 vote
0 answers
37 views

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 ...
user148298's user avatar
0 votes
1 answer
128 views

High frequency ultrasound effects on viruses and bacteria

Might anyone have any clue on how high frequency ultrasound have effect on killing viruses and bacteria on surfaces (GHz/MHz)? There have been a few articles online that say ultrasound has effect on ...
dev m's user avatar
  • 9
2 votes
5 answers
295 views

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 ...
Martin Knoche's user avatar
0 votes
4 answers
66 views

small relatively inexpensive crack detection apparatus for bike shops

Is there a relatively inexpensive (let's say under $500US) crack-detection device and related mobile app that would be easy enough for a non-engineer/non-metallurgist to use to determine whether a ...
Tim's user avatar
  • 225
1 vote
0 answers
39 views

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 ...
haxonek's user avatar
  • 11
1 vote
1 answer
241 views

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 ...
Andrew Knoesen's user avatar
0 votes
2 answers
256 views

How to measure and verify ultrasound frequency and intensity from a cheap ultrasonic body contouring device?

Research shows that applying 1 MHz non-focused ultrasound at 3 W/cm2 may reduce subcutaneous fat thickness. In fact, high-end and expensive (costs $5000 >) HIFU ultrasonic transducers are now being ...
Sedmaister's user avatar
1 vote
1 answer
64 views

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 ...
user177195's user avatar
2 votes
0 answers
30 views

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 ...
Dale's user avatar
  • 193
1 vote
1 answer
136 views

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 ...
Mark's user avatar
  • 11
0 votes
2 answers
470 views

What materials that can contain water and ultrasound wave can go through [closed]

Currently, I'm studying about Ultrasound wave. My aim is set up a system that ultrasound wave can go through ( not reflect and not absorb ultrasound wave). Besides that, this material can contain ...
Gab's user avatar
  • 1
1 vote
0 answers
155 views

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 ...
oorst's user avatar
  • 129
0 votes
1 answer
664 views

What is the best resolution obtainable by ultrasonic non destructive testing?

What is the best resolution obtainable by ultrasonic non destructive testing? I understand it depends on frequency.
pjn's user avatar
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1 vote
0 answers
111 views

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 ...
tjv's user avatar
  • 11
2 votes
1 answer
249 views

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 ...
Taha's user avatar
  • 87