金属丝应变片在测量构件的应变时，电阻的相对变化主要由（）来决定的。 -题库考试答案搜索网

金属丝应变片在测量构件的应变时，电阻的相对变化主要由（）来决定的。

单选题

2021-09-01 20:46

A、贴片位置的温度变化
B、电阻丝几何尺寸的变化
C、电阻丝材料的电阻率变化
D、外接导线的变化

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正确答案

B

试题解析

标签：联大河南理工大学电气工程及其自动化检测技术及应用大连工业大学机电一体化技术高起专传感器与测试技术作业1

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