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Research On Sensor Signal Acquisition Based On The Self-Compensation Bridge Method

The construction of bridge method of signal measuring circuit is introduced. The theory is presented that the bridge method can decrease interfering signal and promote the accuracy of measurement. On the basis of this theory, by collecting respectively signals of the bridge measuring circuit and traditional measuring circuit using 8335 data collection card and comparing the results, the superiority of bridge method on signal acquisition of gas sensor is validated .
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