公开(公告)号：US3674963A

公开(公告)日：1972-07-04

申请号：US3674963D

申请日：1970-10-19

Applicant: ROSEMOUNT INC

Inventor： SERRANO LEONARDO V

IPC: G01K1/02 ,  G01K13/08 ,  H05B5/00

CPC classification number: G01K1/024 ,  G01K13/08

Abstract: A system for measuring temperature sensed by a resistance thermometer attached to a moving structure. Impedance of the resistance thermometer is coupled into an AC bridge and a variable resistor is also coupled into the bridge to balance the bridge when the thermometer changes in impedance due to temperature change. The resistance of the variable resistor is sensed by DC circuitry and a resultant DC signal proportional to temperature is thus provided.

Abstract translation: 一种用于测量附着在移动结构上的电阻温度计感测温度的系统。 阻抗温度计的阻抗耦合到交流电桥中，并且当温度计由于温度变化而阻抗变化时，可变电阻器也耦合到桥中以平衡桥。 由DC电路检测可变电阻器的电阻，从而提供与温度成正比的结果DC信号。