Primary acceleration calibration by heterodyne laser interferometer and PXI instrument
Primary acceleration calibration by heterodyne laser interferometer and PXI instrument
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利用外差激光干涉仪和PXI仪器进行初级加速度校准
DOI：
10.1117/12.579619
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
Jun Peng
中科院分区：
文献类型：
--
作者：
Li Zhang;Jun Peng
利用外差式激光干涉仪和PXI总线仪器组成了一套加速度标定系统。改进的外差式激光干涉仪具有稳频激光器和高频率精度的布拉格盒。该系统能够进行振动（正弦和随机）和冲击校准。本文介绍了该系统的工作原理。该系统采用正弦、随机和半正弦激励信号对加速度计进行了标定。结果表明，该系统在振动和冲击的一次标定中具有灵活性和较高的标定精度。
A heterodyne laser interferometer and a PXI bus instrument make a primary acceleration calibration system. The modified heterodyne laser interferometer has a frequency stabilized laser and a high frequency accuracy Bragg cell. The system is capable of vibration (both sinusoidal and random) and shock calibration. This paper introduces the principle of the system. An accelerometer is calibrated by this system using different exciting signals include sinusoidal, random and half-sin. It shows the system is flexible in primary vibration and shock calibration and high accuracy will be attainable.