G - Physics – 01 – R
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G - Physics
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G01R 11/16 (2006.01) G01R 11/02 (2006.01) G01R 11/09 (2006.01) G01R 11/36 (2006.01) G01R 11/66 (2006.01) G01R 21/00 (2006.01)
Patent
CA 1068342
A DIRECTION SENSITIVE OPTO-ELECTRONIC PULSE INITIATOR FOR ELECTRICAL METERS ABSTRACT OF THE DISCLOSURE An opto-electronic pulse initiator for producing meter data pulses from a meter having a rotating movement. A directionally oriented pattern containing at least two reflective surfaces is driven-by the meter movement to se- quentially activate first and second optical sensors. The sensors are activated in opposite sequences in response to opposite rotations of the meter movement. A solid state pulse initiating circuit is utilized and includes low power digital integrated circuit elements, including a clocked bistable logic circuit. The optical sensors are connected to the inputs of the bistable logic circuit to produce predetermined mutually opposite binary logic states at the outputs of the bistable circuit, with the logic states corresponding to a given direction of meter movement Data pulse output channels are controlled by the bistable logic circuit to selectively produce meter data pulses for a predetermined direction of rotation of the meter movement.
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