FIELD: physics.
SUBSTANCE: temperature measuring device has a resistance thermometer (RS) and a reference resistor (RR), the common point of which is connected to a common bus, a stable current generator (SCG), six electronic switches (ES), a square-wave generator (SWG) and three amplifiers. The device also includes an RC filter. The ES are split into three groups, each having two ES. The device also includes a storage capacitor which is connected by one lead to the merged outputs of the ES of the second group of ES, and by the other lead to the input of the first amplifier.
EFFECT: high noise immunity of device.
1 dwg
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