检测仪器除了恒流源外，主要还有温度补偿、脉冲形成、脉宽鉴别以及编码、译码等电路。
In addition to the current source, the detecting instrument mainly contains the circuits for temperature compensation, pulse formation, pulse duration discrimination and encode, decode.
介绍了一个主要由峰值检波器和脉冲宽度鉴别器构成的三相交流电源缺相保护电路。
This paper introduces a kind of electric circuit which mainly consists of a peak detector and a pulse-width discriminator for protecting the three-phase alternating-current supply with loses a phase.
调节器由齿轮和蜗轮蜗杆减速器组成；自动控制电路由脉冲周期鉴别、正向开关、反向开关及保护电路组成。
The adjustor consists of gears and worm-gear reducer, and the automatic controller circuit consists of pulse period discriminator, forward switch, backward switch and protector circuit.
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