发明授权
US3943498A Direct input photoelectric pulse initiator for meter telemetry and
recording systems
失效
直接输入光电脉冲发生器,用于仪表遥测和记录系统
- 专利标题: Direct input photoelectric pulse initiator for meter telemetry and recording systems
- 专利标题(中): 直接输入光电脉冲发生器,用于仪表遥测和记录系统
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申请号: US509611申请日: 1974-09-26
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公开(公告)号: US3943498A公开(公告)日: 1976-03-09
- 发明人: Theodore M. McClelland, III , William P. Doby
- 申请人: Theodore M. McClelland, III , William P. Doby
- 申请人地址: PA Pittsburgh
- 专利权人: Westinghouse Electric Corporation
- 当前专利权人: Westinghouse Electric Corporation
- 当前专利权人地址: PA Pittsburgh
- 主分类号: G01D5/30
- IPC分类号: G01D5/30 ; G01R11/02 ; G01R11/36 ; G08C19/16 ; G08C19/18
摘要:
A completely solid state photoelectric pulse initiator for electric utility meter telemetry and recording systems includes a low power CMOS digital integrated circuit (I.C.) flip-flop output circuit for directly generating output pulses in response to the rate of rotation of a meter movement. A pulse rate dividing circuit is provided by a presettable divide-by-N CMOS digital I.C. in one preferred form for electronically varying the ratio of the output pulses relative to the input pulses. A simplified data magnetic recording receiver circuit is capable of being supplied recorder drive current directly from the Q and Q logic outputs of the output flip-flop to produce non-return-to-zero (NRZ) data pulse recording.
公开/授权文献
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