Investigation on a Checking Method for Vibration Test System
To ensure the accuracy and precision of vibration test,a universal checking method is proposed.The use of the method is discussed and an actual example is given.First,the calibration of the 7703A-500 type sensor is analyzed on the basis of frequency response method.The frequency range of normal working can be determined by the exact calibration of sensitivity,frequency response and linearity.For the basic problem of abnormal signals appearing in test system,the method of zero check and loading vibration source are developed.The frequency spectrum of output signals is employed to distinguish the noise signal,unknown source signal and useful signal effectively.Finally,the experimental results reveal the importance to improve the accuracy of the results of practical vibration test.
vibration test sensor calibration signal sensitivity linearity frequency response
Xiuhua Men Jia Xu Baojian Liu Xiuli Fu
1.School of Mechanical Engineering,University of Jinan,250022 Xian Aircraft Company,Xian,710089 SAIC-IVECO HONGYAN COMMERCIAL VEHICLE CO.LTD,Chongqing,401122
国际会议
南京
英文
1-5
2013-08-20（万方平台首次上网日期，不代表论文的发表时间）