论文部分内容阅读
惠斯通电桥是一种可以精确测量电阻的仪器,平衡时,四个臂的阻值满足一个简单的关系,利用这一关系就可测量电阻,通过电阻的变化可以测得其他一些物理量,在桥梁检测中该电桥应用较为广泛。
The Wheatstone bridge is an instrument that can accurately measure the resistance. In equilibrium, the resistance of the four arms meets a simple relationship. Using this relationship, the resistance can be measured and some other physical quantity can be measured by the change of resistance. This bridge is widely used in bridge inspection.