发明名称 |
Sensitivity-calibration circuit for absorption analyzers. |
摘要 |
<p>The sensitivity-calibration circuit for absorption analyzers comprises two separate temperature-compensation circuits (A, B), one (A) for compensating the temperature-drift resulting from the optical system of the analyzer and the other one (B) for compensating the temperature-drift caused by a sample system of the analyzer. The latter mentioned temperature-compensation circuit (B) can be blocked-off from operating on a checking and/or measuring input signal (VIN) by use of a switch (SW) such that during a measuring state both temperature-compensation circuits (A, B) are cooperating in sequence whereas during a specific checking state by switching over switch (SW) only said temperature-compensation circuit used in connection with checking the optical system is actively operating on said input signal (VIN). The advantage over the prior art combination sensitivity-calibration circuits is a more accurate and reliable calibration of the absorption analyzer during both, the measuring state and the checking state of the whole system. </p> |
申请公布号 |
EP0222993(A2) |
申请公布日期 |
1987.05.27 |
申请号 |
EP19860111872 |
申请日期 |
1986.08.27 |
申请人 |
HORIBA, LTD. |
发明人 |
KIHARA, NOBUTAKA;ASANO, ICHIRO;KOJIMA, KENNOSUKE |
分类号 |
G01N21/27;(IPC1-7):G01N21/35;G01N21/61 |
主分类号 |
G01N21/27 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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