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一、引言在铯束原子频率基准中,由铯束管离化器得到的误差信号电流十分微弱(约为PA量级),一般须经电子倍增器放大几个量级后再送至伺服电路,经处理变换后实现对压控晶振
I. INTRODUCTION In the cesium beam atomic frequency reference, the error signal current obtained by the cesium beam tube ionizer is very weak (about PA magnitude) and generally needs to be amplified by electron multiplier several orders of magnitude before being sent to the servo circuit. After the transformation to achieve the voltage-controlled crystal oscillator