首页> 外国专利> Correction method for effects of stray light - uses light- sensitive resistance and modulated light

Correction method for effects of stray light - uses light- sensitive resistance and modulated light

机译:杂散光影响的校正方法-使用光敏电阻和调制光

摘要

Two resistances (R - Delta R, r) in series are used between a defined voltage source (V), one of them (R - DeltaR r) being a photo resistor subjected to the illumination of the ambient light (E) and a modulated light beam (Delta E): the variation of voltage (v) corresponding to this modulation being bled off at the terminals of the resistance which does not receive the modulated light beam. The mean values of resistivity of the two resistances are maintained equal. The potential at the point (M) between the two resistances is compared with one half of the supply voltage and the difference is used to modify the value of at least one of the resistances in order to annul the difference; the modification thus eliminates the effects of the variation caused by modulating the light beam.
机译:在定义的电压源(V)之间使用两个串联的电阻(R-Delta R,r),其中一个(R-DeltaR r)是受环境光(E)照射的光敏电阻,并经过调制光束(Delta E):与该调制相对应的电压(v)的变化在未接收到调制光束的电阻的端子处消失。两个电阻的电阻率平均值保持相等。将两个电阻之间的点(M)上的电势与电源电压的一半进行比较,使用该差值修改至少一个电阻的值,以消除该差值;因此,该修改消除了由于调制光束而引起的变化的影响。

著录项

  • 公开/公告号FR2256402A1

    专利类型

  • 公开/公告日1975-07-25

    原文格式PDF

  • 申请/专利权人 SOULET MICHELFR;

    申请/专利号FR19730046479

  • 发明设计人

    申请日1973-12-27

  • 分类号G01J1/44;H01C7/08;

  • 国家 FR

  • 入库时间 2022-08-23 03:44:53

相似文献

  • 专利
  • 外文文献
  • 中文文献
获取专利

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号