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CONDITION SENSING AND MEASURING SYSTEM EMPLOYING A PULSE- ENERGISED SENSING OSCILLATOR AND PROVIDING SUSTAINED FREQUENCY SHIFT OUTPUT
CONDITION SENSING AND MEASURING SYSTEM EMPLOYING A PULSE- ENERGISED SENSING OSCILLATOR AND PROVIDING SUSTAINED FREQUENCY SHIFT OUTPUT
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机译:使用脉冲激励的传感振荡器并提供持续的频率转换输出的状态传感和测量系统
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摘要
A method and apparatus for delivering energy to an oscillatory system in a signal transmitter to maintain the system in a state of oscillation. A component of the oscillatory system that affects the oscillation frequency is influenced by the magnitude of a measured condition which is to be transmitted by the signal transmitter. The oscillatory state of the system is sensed through a signal path, and energy is delivered to the system through substantially the same signal path, said energy being delivered in the form of pulses at time intervals longer than a whole period of oscillation of the system to maintain the system in a state of oscillation.
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