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Ultrasonic signals (or even sonic ones - ones we can hear) are generated by a device called a transducer. The transducer has a crystal driver that converts electrical energy into mechanical energy (and sound is mechanical energy) and vice versa because of piezoelectric effect. A crystal can be made to change shape (get a tiny bit longer or shorter) by electrical stimulation. And changing the shape of a crystal, squeezing it a bit, can cause it to generate an electrical signal. That's piezoelectric effect. It can be called a bi-directional process. Send an electrical signal to a transducer and it will convert the electrical energy (signal) into mechanical energy (sound). Because the process works in reverse, the transducer is used to send out a signal and then be used to listen for the return echo. All in ultrasound. That's sound that is above the range of human hearing. Human hearing is roughly 20 cycles per second (cps or Hertz) to 20,000 cps. Medical ultrasonic diagnostic transducers work at well in excess of 1,000,000 cps. Neither your dog nor any bats in the neighborhood can hear that.
One of the many ways is piezoelectric generation, a high frequency current is put across a certain type of crystal and it causes the crystal to oscillate.
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Why is ultrasound less dangerous than x rays?
because ultrasound is not radiation
How do you do an ultrasound?
ultrasound is used for scanning e.g. pregnant womens to check if the feotus is growing in better health
What are uses of ultrasound in day to day life?
Ultrasound are usedful in diagnosing medical problems caused to human beings.
How is trigonometry used in ultrasound?
stop cheating
What is ultrasound?
Ultrasound is sound which has a frequency higher than that of audible sound.( like radar )ADDED: Not like radar. That uses radio waves, although sonar and radar principles are similar.
What is Endorectal ultrasound?
Endorectal ultrasound (ERUS) is a procedure where a probe is inserted into the rectum and high frequency sound waves (ultrasound waves) are generated
Can ultrasound be generated by the collisions of thousands of air bubbles coming from a perforated mat in a tub of water?
no it can not
What form of energy is used in an ultrasound?
Ultrasound uses mechanical energy in the form of sound waves to create images of tissues in the body. The sound waves are generated by a transducer and transmitted into the body, where they bounce off tissues and produce echoes that are captured and used to create an ultrasound image.
Is ultrasound 100 percent sure?
Ultrasound is ultrasound. The question cannot be answered. You must specify what you need to do with your ultrasound.
What is hbs ultrasound?
ultrasound hepatobiliary system
What is a ultrasound cart?
A cart which a/an ultrasound is placed
What is the cpt revenue code for ultrasound?
ultrasound
Which is better ultrasound or infra sound?
Ultrasound
Are there any uses of ultrasound in medicine?
yes when you get an ULTRASOUND when your pregnant it use ultrasound waves to show the image.
What do you call a person who can read ultrasound?
An ultrasound technician.
Is Ultrasound painful?
Ultrasound is generally a painless procedure
Who uses ultrasound?
Animals use ultrasound but i do not know what animals do,
