This power supply can automatically trace the resonant frequency of an ultrasonic generator, automatically adjust its power output according to needs, and has an alarm display function.

它能自动跟踪功率超声发生器的谐振频率，同时还可根据需要自动调节输出功率，并具备显示报警功能。

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They obey normal distributions. Distributions of power spectral density (PSD) for pressure signal display narrower frequency range and higher amplitude.

压力信号的功率谱密度具有频率波动范围窄、幅值大的特点；

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In terms of hardware, the detection system is divided into radio frequency module, H2S sensor conditioning circuits, routers, coordinator, display, serial port and power supply module circuit design.

硬件方面，主要分为无线射频模块、H2S传感器调理电路、路由器、协调器、显示、串口、电源模块等元电路进行设计。

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