发明名称 |
Photoelectric disc reader with alternate reading locations |
摘要 |
A photoelectric pulse initiator includes a rotating pattern having a single track of indicia scanned by two optoelectronic sensors. The sensors having different mounting relationships for scanning different indicia patterns. Alternate impulses from the sensors produce opposite polarity pulses in a three wire remote meter reading telemetry system.
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申请公布号 |
US4047024(A) |
申请公布日期 |
1977.09.06 |
申请号 |
US19760668029 |
申请日期 |
1976.03.18 |
申请人 |
WESTINGHOUSE ELECTRIC CORPORATION |
发明人 |
HENDERSON, BENJAMIN B. |
分类号 |
G01D5/36;G01R11/02;(IPC1-7):G01D5/34 |
主分类号 |
G01D5/36 |
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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