Pressure transmitter circuit
A transmission circuit and pressure technology, applied in the field of pressure transmitter circuits, can solve problems such as poor anti-interference performance and poor stability, achieve filtering power frequency interference, enhance anti-interference performance and stability, and have a simple structure Effect
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[0024] The present invention is further illustrated below by means of examples, but the present invention is not limited to the scope of the examples.
[0025] The pressure transmission circuit of this embodiment includes a power supply input interface 1 , a clamp protection module 2 , a linear voltage regulator 3 , a strain gauge 4 , an instrument amplifier 5 , a dual operational amplifier 6 and an analog voltage output interface 7 . The input terminal of the clamp protection module is electrically connected to the input interface of the power supply 8, the output terminal of the clamp protection module 2 is electrically connected to the power supply terminal of the strain gauge 4 through the linear voltage regulator 3, and the output terminal of the strain gauge 4 is amplified by the instrument 5 It is electrically connected with the dual operational amplifier 6 and the analog voltage output interface 7, and the strain gauge is attached to an elastic body (a polymer material ...
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