Deacription:

Ultrasonic impedance detector, also known as ultrasonic frequency measuring instrument, ultrasonic transducer parameter analyzer, ultrasonic transducer impedance tester, ultrasonic performance analyzer, the instrument consists of hardware and software. It was widely used in the detection of piezoelectric ultrasonic devices and equipment of integrated solutions.

Specification:

Parameters:

The impedance analyzer can be used to evaluate the performance of various devices such as piezoelectric ceramic, piezoelectric transducer, whole vibration system (transducer plus horn, mould) and so on. The most important parameters of the impedance analyzer for the analysis of ultrasonic devices are as follows:
Fs: Mechanical resonance frequency, that is, the working frequency of the vibration system, should be designed as close as possible to the expected value, and must match the working point of the power supply.
For the cleaning machine, the higher the resonance frequency consistency of the oscillator, the better.
For plastic welding machine or ultrasonic processing, the resonant frequency of the oscillator will deviate from the working point when the horn or die design is unreasonable.

R1: Dynamic resistance, piezoelectric oscillator series branch resistance, in the same support conditions, the smaller the better. For cleaning or welding oscillator, it is usually between 5 and 20. If it is too large, the oscillator or vibration system will have problems, such as circuit mismatch or low conversion efficiency and short oscillator life.
Qm: Mechanical quality factors, determined by conductivity curve method, Qm = Fs/(F2-F1), the higher the Qm, the better, because the higher the Qm, the higher the efficiency of the oscillator; but Qm must match with the power supply, when the Qm value is too high, the power supply can not match.