背靠背加速度计广泛用作振动标准,由于负载质量的影响,这种加速度计在作灵敏度精确校准时就存在一些问题。以往校准过程局限于与被校准过的加速度计进行比较,这需要在不同负载下进行。这里介绍一种新的标准方法——绝对的,即假负载干涉校准法。这种方法是直接测量有负载情况下加速度计安装表面的位移,本文介绍了三种试验条件下的实验论据。 Back-to-back accelerometers are widely used as vibration standards and due to the impact of load quality, such accelerometers have some problems with sensitivity-accurate calibration. In the past, the calibration process was limited to comparing with calibrated accelerometers, which required different loads. Here is a new standard method - the absolute, that is, the dummy load interferometry calibration method. This method directly measures the displacement of the accelerometer’s mounting surface under load. This article presents the experimental arguments under three test conditions.