DEVICE MEASURING TEMPERATURE Russian patent published in 1996 - IPC

FIELD: measurement technology. SUBSTANCE: invention refers to gear measuring temperature with contactless (remote) transmission of signal from measurement transducer to registering unit. Device measuring temperature has thermally dependent piezoresonator 1 in the capacity of temperature sensor with capacitor 2 connected in parallel to it. First electromagnetic frame is connected to them. Second electromagnetic frame 6 arranged in parallel to it is connected with one end to output of frequency returnable generator 4 and to output of radio receiver 3 with registering unit and with the other end- to common wire. Output of radio receiver 3 with registering unit is linkage to controlling input of generator 4. Cases of generator 4 and radio receiver 3 with registering unit are connected to common wire. Radio receiver 3 with registering unit has amplitude detector 7, differentiating unit 8, threshold unit 9, sawtooth voltage former 10, electronic key 11, controlled frequency divider 12, reference generator 13, phase detector 14, low-frequency filter 15 and registering unit 16. EFFECT: expanded range of measured temperatures. 3 dwg