Ultrasonic sound intensity measuring instrument is a kind of equipment specially used to measure ultrasonic intensity in liquid. The so-called sound intensity is the sound power per unit area. The sound intensity directly affects the effect of ultrasonic cleaning, ultrasonic emulsification, ultrasonic extraction, ultrasonic dispersion, etc. The ultrasonic strength (acoustic power) in liquid vocal system is a main index of Zui in ultrasonic system. It has a direct influence on the cleaning effect of the cleaning machine and the working efficiency of the ultrasonic processor. The ultrasonic power (sound intensity) measuring instrument can measure the intensity of sound field quickly and easily at any time and anywhere, and give the sound power value directly. According to the different use situation, ultrasonic intensity measuring instrument can be portable and online monitoring type. The sound pressure at several fixed positions can be measured at a time, and the readings can be recorded. Then, the basic data of equipment cleaning capacity can be correctly judged according to the change of sound pressure in each cycle.
Ultrasonic pressure detection is carried out for all kinds of ultrasonic cleaning devices to judge the working performance and ultrasonic intensity of the equipment. The sound pressure of each position in the cleaning cylinder of ultrasonic cleaning machine is different, because the distance from the sound source is different, the direction is different, and the energy attenuation value is different. It is necessary to note that the sound pressure value in the cleaning tank of any ultrasonic cleaning machine with high power is very small. The specific sound pressure value is closely related to the layout, quantity, specification and size of the transducer in the cleaning water tank, the input power of the generator and the conversion efficiency of the transducer. Therefore, the washing machine, which is called thousands of watts, has a small sound pressure of 0.0 watts, The big one is 1-10 watts. The ultrasonic sound intensity measuring instrument is used to study the piezoelectric properties of piezoelectric ceramics, namely piezoelectric effect. If the force varies periodically, the piezoelectric ceramics will output an AC voltage signal of the same frequency. Due to cavitation and other interference, the actual voltage waveform is a superposition of a main wave and many secondary waves. To understand the actual wave form of sound field, it is recommended to observe it with spectrum analyzer or oscilloscope.