What Is The Structure Of An Ultrasonic Sound Intensity Measuring Instrument？

Ultrasonic sound intensity measuring instrument is a kind of equipment specially used for measuring the ultrasonic sound intensity in liquid. The so-called sound intensity is the sound power per unit area, and the size of the sound intensity directly affects the effects of ultrasonic cleaning, ultrasonic emulsification, ultrasonic extraction, and ultrasonic dispersion. The ultrasonic intensity (sound power) in the liquid acoustic speaker is one of the most important indicators of the ultrasonic system. It has a direct impact on the cleaning effect of the cleaning machine and the working efficiency of the ultrasonic treatment machine. The ultrasonic power (sound intensity) measuring instrument can quickly and easily measure the sound field intensity anytime and anywhere, and give the sound power value intuitively. According to different use occasions, the ultrasonic sound intensity measuring instrument can be portable and online monitoring type. You can measure the sound pressure of several fixed positions at a time, record the readings, and then give correct judgments on the basic data of the equipment cleaning ability according to the changes in the sound pressure in each cycle.

Perform ultrasonic sound pressure testing for all types of ultrasonic cleaning devices to determine the performance and ultrasonic intensity of the equipment. The sound pressure of each position in the cleaning tank of the ultrasonic cleaner is different. This is because the distance from the sound source is different, the orientation is different, and the value of the energy attenuation is different. It should be noted 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 related to the layout and quantity of the transducers in the cleaning water tank, and the specifications of the water tank. The size, the input power of the generator, and the conversion efficiency of the transducer are closely related. Therefore, the sound pressure in the sink of a washing machine with a few kilowatts is as small as a few tenths of a watt, and as large as 1-10 watts. The ultrasonic sound intensity measuring instrument uses the positive piezoelectric characteristics of piezoelectric ceramics, that is, the piezoelectric effect. If the magnitude of the force changes in a certain period, the piezoelectric ceramic outputs an AC voltage signal of the same frequency. Due to cavitation and other disturbances, the actual voltage waveform is a superposition of a main wave and many sub-waves.