题目内容
全桥电路的电压灵敏度是单臂电桥的（）倍？
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悬臂梁测力系统中，四个相同特性（灵敏系数K=2，初值为120Ω）的电阻应变片接入全桥，当试件受力F时，应变片平均应变为ε=1000μm／m，全桥电路的电源电压为直流5V。试计算电桥输出电压()伏。P41
为了解决电位器式传感器受负载的影响，需要在传感器和负载之间接入（）跟随器以进行阻抗匹配。
l,1. Fill in the gaps with words or phrases given in the box. Change the form where necessary.Weepreversesprinklediminish long for put away repayat sea Traditional in secret statementunloadSincerein turnunder way1) The cook put the meat on a plate, ____ it with salt and pepper,wrapped up the plate in aluminum foil(铝箔) and then placed it in the oven to roast.
2) Every waking moment we talk to ourselves about the things we experience. Our self-talk,the thoughts we communicate to ourselves, ____control the way we feel and act.
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