发明授权
- 专利标题： Calibrating mechanism of an infrared analyzer
- 专利标题（中）： 红外分析仪的校准机制
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申请号： US740056申请日： 1985-05-30
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公开(公告)号： US4673812A公开(公告)日： 1987-06-16
- 发明人: Aritoshi Yoneda
- 申请人： Aritoshi Yoneda
- 申请人地址： JPX Kyoto
- 专利权人： Horiba, Ltd.
- 当前专利权人： Horiba, Ltd.
- 当前专利权人地址： JPX Kyoto
- 优先权： JPX59-143169 19840709
- 主分类号： G01N21/27
- IPC分类号： G01N21/27 ; G01N21/31 ; G01N21/35 ; G01N21/3504 ; G01D18/00 ; G01N21/61
摘要：
An amplifying circuit for amplifying an output from a measurement wavelength detector consists of a preamplifier and a measurement signal amplifier provided at an output of said preamplifier. The measurement signal amplifier is provided with an input-resistance and a feed-back resistance, a variable resistance connected in series to a normally open switch, the series combination being connected in parallel to the feed-back resistance so that the gain of the measurement signal amplifier may be variable.
公开/授权文献
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