Piezoelectric Disc PZT5 10x2mm 1MHz

Piezoelectric Disc PZT5 10x2mm 1MHz

Introduction to the flow measurement principle of ultrasonic flowmeter

The technology of using ultrasonic pulses to measure fluid flow has developed rapidly. Based on different principles, various forms of ultrasonic flowmeters suitable for different occasions have appeared one after another. Their application fields involve industries and agriculture, water conservancy, hydropower and other sectors, and they are becoming the preferred tool for flow measurement.

Measuring principle of ultrasonic flowmeter

The commonly used measurement methods for ultrasonic flowmeters are propagation velocity difference method, Doppler method, etc. The propagation velocity difference method includes direct time difference method, phase difference method and frequency difference method. The basic principle is to measure the difference between the velocities of the ultrasonic pulse downstream and upstream to reflect the flow velocity of the fluid, thereby measuring the flow; the basic principle of the Doppler method is to use the Doppler effect in the sound wave to measure the sum of the downstream flow The frequency difference of the reverse water flow reflects the flow velocity of the fluid to obtain the flow rate.

The core component of ultrasonic flowmeter is Piezoelectric Disc, Material PZT5 is good for transmitte and receive, Dimension 10x2mm its resonant frequency is 1MHz.