Specification

For ultrasonic welding or processing, the Qm value of the oscillator itself is generally about 500-1000, the whole system is 1500-3000, if too low, the vibration efficiency is low, but it can not be too high, because the higher the Qm, the narrower the working bandwidth, the power source is difficult to match, that is, the power source is difficult to work at the resonance frequency point, the equipment can not work.CT: The capacitance value of free capacitor and piezoelectric device at 1 kHz is the same as that measured by digital capacitance meter. By subtracting the dynamic capacitance C1 from this value, the true static capacitance C0, C0 = CT-C1, can be obtained. The inductance should be used to
balancethe 20.In the circuit design of cleaning machine or ultrasonic processing machine, balancing C0 correctly can improve the power factor of power supply. There are two ways to use inductance balance, parallel tuning and series tuning.

Fp: Anti-resonant frequency, the resonant frequency of parallel branch of piezoelectric oscillator. At this frequency, the impedance Zmax of piezoelectric oscillator is the largest. If the anti-resonant impedance Zmax is very low, the oscillator has problems.
 

Graphics

The impedance analyzer provides five kinds of coordinate charts, among which the logarithmic charts are of great significance for the detection of piezoelectric devices. The vibration performance of piezoelectric oscillator or vibration system can be judged directly by logarithmic coordinate diagram, which is more intuitive and practical.