Circuit for retention of real time data and line energy during a power line cutting on an electricity meter, real time data retention process and electricity consumption and electricity meter
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Grooved Schottky barrier photodiode for infrared sensing
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Amplifier for voltage or current to frequency converter
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Switched capacitor mixer/multiplier
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Temperature transducer for KYZ pulse recorder
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Direction sensitive optical shaft encoder
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Current measuring and magnetic core compensating apparatus and method
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Data compression apparatus and method for data recorder with waveform envelope display