Calibration of laser Doppler vibrometer and laser interferometers in high-frequency regions using electro-optical modulator
Calibration of laser Doppler vibrometer and laser interferometers in high-frequency regions using electro-optical modulator
复制标题
使用电光调制器校准高频区激光多普勒测振仪和激光干涉仪
DOI:
10.1016/j.precisioneng.2021.01.016
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发表时间:
2021
期刊:
影响因子:
--
通讯作者:
Tomofumi Shimoda
中科院分区:
文献类型:
--
作者:
Hideaki Nozato;Wataru Kokuyama;Tomofumi Shimoda
We proposed a new primary calibration method of a laser Doppler vibrometer (LDV) using the optical modulated excitation of an electro-optical modulator and validated this approach by comparing mechanical modulated excitation with homodyne laser interferometer at the National Metrology Institute of Japan (NMIJ). The velocity sensitivity of the LDV was evaluated with the uncertainty budget at a high-frequency range up to 1 MHz, which is indicated as the upper limit of 50 kHz in ISO (International Organization for Standardization) 16063–41. As the results, we confirmed that velocity sensitivities between optical and mechanical modulated excitations are flat within their uncertainty from 100 Hz up to 1 MHz. Moreover, in order to evaluate the accurate phase shift of the accelerometer up to 20 kHz using optical modulated excitation, we also revealed the reliability of two time shifts between homodyne and heterodyne laser interferometers.
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影响因子:
2.4
作者:
T. Bruns;G. Ripper;A. Täubner
通讯作者:
A. Täubner
DOI:
10.1088/1742-6596/1065/22/222008
发表时间:
2018
期刊:
Journal of Physics: Conference Series
影响因子:
--
作者:
H. Nozato;W. Kokuyama;K. Hattori;A. Ota
通讯作者:
A. Ota
DOI:
--
发表时间:
2009
期刊:
--
影响因子:
--
作者:
T. Bruns;F. Blume;A. Täubner
通讯作者:
A. Täubner
影响因子:
2.4
作者:
T. Usuda;M. Dobosz;T. Kurosawa
通讯作者:
T. Kurosawa
DOI:
10.1117/12.579619
发表时间:
2004
期刊:
--
影响因子:
--
作者:
Li Zhang;Jun Peng
通讯作者:
Jun Peng