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叙述低频振动试验装置精度指标的检测系统以及主要精度和辅助精度指标的检测。 在环境振动试验、结构动力响感试验、低频传感器及测振仪标定等许多方面,经常使用各种低频激振设备,如机械式振动台、电液式振动台、低频电动式振动台及激振器等等。要使这类设备满足国内外有关试验标准的要求,要得到可靠一致的产品试验结果,就必须定期对于振动试验装置和精度指标进行检测,以使振动台有一定的精度保证。鉴于目前这方面的资料较少,所以本文仅根据实际工作中的一些经验和体会,对于工作频率范围低于200H_2的低频振动台精度指标的检测方法作一简要介绍,供有关人员参考和讨论。
Describe the detection system of low frequency vibration test device accuracy index and the detection of the main accuracy and auxiliary accuracy index. In many aspects such as environmental vibration test, structural dynamic response test, low-frequency sensor and vibrometer calibration, we often use various low-frequency excitation equipment such as mechanical vibration table, electro-hydraulic vibration table, low frequency electric vibration table and shock Vibrator and so on. To make such equipment to meet the requirements of the relevant test standards at home and abroad, in order to obtain reliable and consistent product test results, it is necessary to periodically test the vibration test device and the accuracy index so as to ensure the shaker has a certain accuracy. In view of the current lack of information in this area, this article only based on some experience in the actual work and experience of the working frequency range below 200H_2 low frequency shaking table accuracy index detection method for a brief introduction for reference and discussion of the relevant personnel.