3.1 压阻加速度计压阻式传感器最容易与通用型的仪器相连。它通常有高的电平输出,低的输出阻抗和很低的固有噪音。然而,为了最大限度的发挥这些优点,有几点必须特别注意。这些传感器一般结构是由配对的可变应变计构成。通常把有源元件连接成惠斯登电 3.1 piezoresistive accelerometer Piezoresistive sensor is most easily connected with the universal instrument. It usually has a high level of output, low output impedance and low inherent noise. However, in order to maximize these advantages, there are several points that must be given special attention. The general structure of these sensors is composed of a pair of variable strain gauges. Active components are usually connected as a Wheatstone switch