RTD测温方案

【文件属性】：
文件名称：RTD测温方案
文件大小：369KB
文件格式：PDF
更新时间：2018-06-18 08:13:21
RTD测温方案 Circuit Design The circuit shown in Figure 2 converts the RTD resistance change from 100 Ω to 212.05 Ω to an output voltage change of 0.1 V to 2.4 V, which is compatible with the ADC input range. In addition, the circuit removes the errors associated with the wiring resistances r1 and r2. The transfer function of the circuit in Figure 2 is obtained using the superposition principle: R3 R4 R1 r R1 V R3 R4 R6 R5 R6 r R r R1 ) R1 V V 2 R 2 X1 R OUT ) '( ' 1 ' ' ( ' '              (1