发明名称 |
Current measuring apparatus using light-emitting devices |
摘要 |
The invention relates to a device for measuring current which traverses a light-emitting structure, the current passage thus causing emission of light. It is characterized in that the emitted light signal is adapted to be supplied to two photo-detectors having different sensitivity spectra and/or with at least one photo-detector being provided with an optical filter. The output signals of the photo-detectors are adapted to be supplied to a quotient forming member and/or a calculating member for obtaining a signal which is compensated for temperature variations in the light-emitting structure and other sources of error.
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申请公布号 |
US4378496(A) |
申请公布日期 |
1983.03.29 |
申请号 |
US19800199446 |
申请日期 |
1980.10.22 |
申请人 |
ASEA AKTIEBOLAG |
发明人 |
BROGARDH, TORGNY;ENGSTROM, OLOF;OVREN, CHRISTER;SANDER, LARS |
分类号 |
G01R19/00;G01R15/22;(IPC1-7):G02B5/14 |
主分类号 |
G01R19/00 |
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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