非接触转子振动位移采集系统测试误差

张岩松; 邱大明; 王洪斌

doi:10.13224/j.cnki.jasp.2018.02.006

非接触转子振动位移采集系统测试误差

doi: 10.13224/j.cnki.jasp.2018.02.006

中国航空发动机集团有限公司沈阳发动机研究所,沈阳 110015

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出版历程
- 收稿日期: 2016-12-09
- 刊出日期: 2018-02-28

Measurement error of noncontact rotor vibration displacement measurement system

摘要

摘要: 对基于叶尖定时测量原理开发的非接触转子振动位移采集系统(NRDMS)测试误差进行了研究分析。将模拟叶片振动标准信号作为采集系统测试的输入信号,研究了测试对象参数和采集系统时基信号对测试结果误差的影响,理论和测试结果分析表明：测试误差主要受采集系统时基信号和转速的影响,采集系统的最大引用误差为0.066%。
- 非接触 /
- 标定 /
- 振动位移 /
- 时基 /
- 测试误差
Abstract: The measurement error of the noncontact rotor blade displacement measurement system (NRDMS) was assessed based on blade tiptiming. The displacements were obtained from the NRDMS using simulation signal of the blade vibration, and the influences of the number rotor blade, rotation speed and the timebase on the measurement deviation were researched. Theoretical and observed displacement analysis showed that, it was possible to detect measurement error due to the timebase and rotation, with the maximum quoted error of NRDMS up to 0.066%.
- non-contact /
- calibration /
- vibration displacement /
- timebase /
- measurement error

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