Ultrasound Definition and 111 Threads

I want to build an electronic device that transmits ultrasounds (I guess that is in the LF frequency range [?]). Does anyone know where I can find a kit that creates ultrasounds?

Hello, I am researching an article on the past uses of sound on animals whether it be for medical research (e.g. development of ultrasound imaging) or other uses. I remember there being a case of a sound wave directed at a race horse in the UK some years ago. This disrupted the horse and...

I can't seem to find a simple ultrasound transducer probe (that won't have "medical" tagged on it, hiking up the price). I need at least 1.2-2.5 mhz, 360 deg cone, high power. Dual element PZT. This is for marine application (side scan sonar/ROV imaging). Can anyone tell me where I can find...

Hello. I took a course in Ultrasound and I wonder why dentists don't use that instead of X-ray. The patient only need to fill his/hers mouth with water and then it is possible to use Ultrasound Scans in the mouth of the patient without any jonisating radiation. It could even be possible...

I heard something about electrostimulators and ultrasound thingys that athletes can use over their sprains and alike that will help them heal faster. Sounds like quackery to me, but what is it about?

A sound wave travels at a frequency 2.25 MHz through a pregnant woman's abdomen and is reflected from the fetal heart wall of her unborn baby. The heart wall is moving toward the sound receiver as the heart beats. The reflected sound is then mixed with the transmitted sound, and 87.0 beats per...

is ultrasound technology cheaper compared to x-ray technology? is it easier to construct? for example the ones to probe foetus in pregnant females. what is the advantage for using ultrasound for probing foetus compared to x-ray, apart from safety issue? thanks.

Ultrasound reflected from an oncoming bloodstream that is moving at a 30 cm/s is mixed with the original frequency of 2.5 MHz to produce beats. What is the beat frequency in Hz? (Velocity of sound in blood = 1540 m/s.)

The smallest object which can be resolved with a given frequency of ultrasound in a diagnostic scanner is on the order of the wavelength of ultrasound used. If 20 mhz ultrasound is used for a scan of the eye, and the speed oft the wave is 1500 m/sec, how small an object could be detected in the...

hey just wondering about the doppler effect and how it is used in meterology, law enforcment and astronomy. I know for law enforcment they use it in radar guns, and astronomy i think for finding the distance of planets? Any other ways it used? and also how is ultra sound used in medicine...

Ultrasound reflected from an oncoming bloodstream that is moving at 31 cm/s is mixed with the original frequency of 1.3 MHz to produce beats. What is the beat frequency? (Velocity of sound in blood = 1540 m/s.) I know that there are two doppler shifts; one where the source is fixed and the...