20 khz.
ultrasonic wave is sound frequency
The frequency of the ultrasonic waves of the echo from a stationary object is the same as the frequency of the ultrasonic waves emitted by the probe. The echo frequency remains constant as it reflects off the stationary object back to the probe.
An ultrasonic wave is a sound pressure wave that has a very high frequency. The frequency is higher that what humans can hear.
Ultrasonic units can penetrate solids, liquids, and gases, depending on the frequency used. Higher frequency ultrasonic waves penetrate shallow tissues or liquids, while lower frequency waves can penetrate deeper tissues or solids.
Ultrasonic Frequency
Ultrasonic waves have a frequency range above the audible limit of human hearing, typically between 20 kHz and 100 kHz.
Ultrasonic frequency has been shown to be effective for repelling female mosquitoes. It reportedly works within one meter of the insects.
The calibration frequency of an ultrasonic instrument typically depends on the specific manufacturer's recommendations and industry standards. However, it is generally recommended to calibrate ultrasonic instruments annually to ensure accurate and reliable measurements.
what is the difference between ultrasonic welding & radiographic welding
Gamma rays have a higher frequency than X-rays.
Gamma rays have a higher frequency than X-rays. Gamma rays are the most energetic form of electromagnetic radiation in the electromagnetic spectrum, whereas X-rays have a lower frequency than gamma rays.
Ultrasonic sound.