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  5. The modified scheme of deep temperature measurement zero modulation method

The modified scheme of deep temperature measurement zero modulation method

S.A. Naida, K.S. Drozdenko
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The review of voltage multipliers schemes, based on semi-conductor elements and with use of integrated microcircuits is lead. The multiplier which can be used in synchronous detector block construction of the acoustothermometer, realizing zero modulating method of measurement weak noise signals on a background of intensive noise of the receiver choice is proved. Acoustothermometer threshold sensitivity for the chosen type of synchronous detector is calculated
Keywords: zero modulation method, deep temperature, voltage multiplier, synchronous detector, modulation acoustothermometer, differential amplifier, operational amplifier