The intensity of a pulse emitting laser can be controlled constantly and continuously while recording data without using test emissions or a high speed sampleholdcircuit.
对在记录数据时处于脉冲发光状态的激光,不用试验发光或高速抽样保持电路,就能经常连续地控制其强度。
2
On the basis of analyzing the common methods of background magnetic field compensation, a new automatic compensation method based on sample and holdcircuit is put forward.
在分析磁通门常用背景磁场补偿方法基础上,提出一种新的采样保持电路自动补偿方法。
3
Sample the negative voltage on the diode series with IGBT by Peak hold switch circuit, and cut-in A/D module in the DSP, compared with setting value.