航空学报 > 2015, Vol. 36 Issue (3): 962-969   doi: 10.7527/S1000-6893.2014.0110

角振动校准装置研究

薛景锋1,2, 彭军2, 李新良2, 赵维谦1   

  1. 1. 北京理工大学 光电学院, 北京 100081;
    2. 北京长城计量测试技术研究所 光纤传感技术中心, 北京 100095
  • 收稿日期:2014-03-24 修回日期:2014-05-26 出版日期:2015-03-15 发布日期:2015-03-31
  • 通讯作者: 薛景锋 男,博士研究生。主要研究方向:动态测试与校准,光纤传感。Tel: 010-62452550 E-mail: xuejf2008@163.com E-mail:xuejf2008@163.com
  • 作者简介:薛景锋 男,博士研究生。主要研究方向:动态测试与校准,光纤传感。Tel: 010-62452550 E-mail: xuejf2008@163.com
  • 基金资助:

    国防基础科研项目

Research on angular vibration calibration devices

XUE Jingfeng1,2, PENG jun2, LI Xinliang2, ZHAO Weiqian1   

  1. 1. School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, China;
    2. Optic Fiber Sensors Center, Beijing Changcheng Institute of Measurement and Metrology, Beijing 100095, China
  • Received:2014-03-24 Revised:2014-05-26 Online:2015-03-15 Published:2015-03-31
  • Supported by:

    National Defense Basic Research Program

摘要:

为提升对惯性器件的动态性能评价能力,通过对被校传感器施加标准正弦角振动激励,精确测量角振动过程,实现了对角振动传感器的校准。基于不同频段的特点,将校准频段划分为低频和高频2部分,并提出空气轴承与无刷直流力矩电机相结合的低频角振动台方案,以及轻质空心杯精密空气轴承与框式电磁驱动结构相结合的高频角振动台方案;分别采用精密角度编码器和衍射光栅激光干涉仪实现对低频和高频角振动的测量,成功研制出频率范围为0.25~550 Hz、角加速度范围为0.1~1 760 rad/s2以及角速度波形失真小于2%的角振动绝对法校准装置。与德国国家物理技术研究院的角振动校准装置相比,该装置能够显著提升承载能力,可广泛用于惯性器件动态性能的测试与评价。

关键词: 角振动, 校准, 角振动台, 激光干涉, 陀螺, 角加速度计

Abstract:

In order to improve the evaluating capabilities of dynamic properties for inertial sensors, by loading standard sine wave angular vibration and measuring precisely the angular vibration process, the angular vibration sensor is calibrated. Based on the different frequency specialties, the calibration device is divided to high-frequency and low-frequency two parts. In low-frequency calibration device, an air bearing and brushless direct current torque motor is used. In high-frequency calibration device, a precise air bearing of light hollow cuptype and electromagnetic ariving structure of frame type is designed. Using precise angular encoder measure low-frequency angular vibration and using diffraction grating heterodyne laser interferometer measure high-frequency angular vibration, respectively. A primary angular vibration calibration device with frequency range of 0.25 Hz to 550 Hz, angular acceleration range of 0.1 rad/s2 to 1 760 rad/s2 and angular velocity wave-distortion below 2% is successfully developed. Compared with the angular vibration calibration device in the Physikalisch-Technische Bundesanstalt, this equipment could provide more load bearing, and could be widely used in dynamic properties tests and evaluating of inertial sensors.

Key words: angular vibration, calibration, angular vibrator, laser interferometer, gyro, angular accelerometer

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