发明名称 |
MEASUREMENT SIGNAL OUTPUTTING DEVICE |
摘要 |
PROBLEM TO BE SOLVED: To improve the measurement accuracy of signals to be measured by fixing or automatically adjusting the detection sensitivity of the signals by performing such control that the optical output from a light source is stabilized. SOLUTION: A measurement signal outputting device is provided with first and second photoelectric conversion elements 21 and 22 which respectively convert first and second optical signals upon receiving the signals from an optoelectronic probe and an output circuit 27 which outputs electric signals obtained at the junction P of the elements 21 and 22 to a measurement circuit side. The device adds the voltage values corresponding to the currents flowing to the elements 21 and 22 by means of an addition circuit 30 and causes a current driving circuit to output the driving current corresponding to the variation of the added output of the addition circuit 30 to the light source 9.
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申请公布号 |
JP2001183398(A) |
申请公布日期 |
2001.07.06 |
申请号 |
JP19990371914 |
申请日期 |
1999.12.27 |
申请人 |
ANDO ELECTRIC CO LTD;NIPPON TELEGR & TELEPH CORP <NTT> |
发明人 |
YANAGISAWA KOJU;TOMOSHIRO CHOICHI;KIKUCHI JUN;SANJEI GUPUTA;SHINAGAWA MITSURU;HASHIMOTO CHISATO;NAGATSUMA TADAO;KURAKI OKU |
分类号 |
G01R31/302;G01R1/06;G01R1/07;G01R15/24;G01R19/00;(IPC1-7):G01R19/00 |
主分类号 |
G01R31/302 |
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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