一、前言四臂线性电阻电桥式的仪表与传感器的种类很多,例如张丝压力传感器,在膜片上贴四片应变片的压力传感器,在应变梁或等应变梁上贴四片应变片的压力或其它(如测力)传感器,在弹性环上贴四片应变片的振动传感器,电阻丝式温度传感器等等。当技术要求较高财,对这类传感器的零位误差(零位输出、零点)与零位温度误差(零位温漂)必须做适当的补偿才能达到要求。 I. INTRODUCTION Four-arm linear resistance bridge has many kinds of instruments and sensors such as tension sensor, four pressure sensors on the diaphragm, four strain gauges on the strain beam or other strain beam Pressure or other (such as force) sensor, the elastic ring attached to the four gage vibration sensor, resistance wire temperature sensor and so on. When the technical requirements of a higher income, such sensors zero error (zero output, zero) and zero temperature error (zero temperature drift) must be properly compensated to meet the requirements.