Learn where life uses ultrasound:
1, the medical industry: the cleaning of medical equipment, disinfection, sterilization, cleaning of experimental vessels and so on.
2, semiconductor industry: semiconductor wafer cleaning high cleanliness.
3, the optical industry: the optical device degreasing, de-sweating, dust removal, etc..
4, petrochemical industry: cleaning and dredging of metal filters, chemical containers, exchangers, etc..
5, the electronics industry: the electronics industry is the earliest application of ultrasonic cleaning, the most popular industry.
Ultrasonic is a frequency higher than 20,000 hertz sound waves, it is a good direction, penetrating ability, easy to get a more concentrated sound energy, in the water spread far, can be used for distance measurement, speed, cleaning, welding, crushing, sterilization and so on. There are many applications in medicine, military, industry and agriculture. Ultrasound is named because its lower frequency limit is greater than the upper limit of human hearing.
Scientists call the number of vibrations per second the frequency of sound, which is measured in hertz (Hz). Our human ears can hear sound waves with a frequency of 20Hz-20,000Hz, so we call sound waves with a frequency higher than 20,000 Hz "ultrasound". The frequency of ultrasound waves used in medical diagnostics is 1 MHz - 30 MHz.