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超声波发生器输出功率
[来源:www.com-to-com.com] [作者:567zx] [日期:19-07-11] [浏览次数:]

超声波发生器输出功率
Output power of ultrasonic generator
当超声波发生器接入电压的发生变化时,发生器的输出功率也随着发生变化。会使超声波换能器的机械振动不稳定,导致工作效果不佳。因此需要稳定输出功率,通过功率反馈信号相应调整功率放大器,使得功率放大稳定。
When the access voltage of the ultrasonic generator changes, the output power of the generator also changes. The mechanical vibration of the ultrasonic transducer will be unstable, resulting in poor working effect. Therefore, it is necessary to stabilize the output power and adjust the power amplifier through the power feedback signal to make the power amplification stable.

频率跟踪
Frequency tracking
换能器工作在谐振频率点时效率最高,工作最稳定。
The transducer works at the resonance frequency point with the highest efficiency and stability.
而换能器的谐振频率点会因装配和工作老化而改变。如果改变的频率只是漂移,变化不大,频率跟踪信号可以控制信号发生器,使信号发生器的频率在一定范围内跟踪换能器的谐振频率点,让发生器工作在最佳状态。
The resonant frequency of the transducer will change due to assembly and aging. If the changed frequency is only drift, the frequency tracking signal can control the generator, so that the frequency of the signal generator can track the resonant frequency point of the transducer within a certain range, so that the generator can work in the optimal state.

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