STUDY OF SHOCK MEASUREMENTS USING HOMODYNE AND HETERODYNE LASER INTERFEROMETERS |
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| H. Nozato, W. Kokuyama, A. Oota |
- Abstract:
- A comparison measurement using homodyne and commercial heterodyne laser interferometers was investigated in the primary shock facility of NMIJ. Each derived shock waveform was calculated by applying a two stage differentiation process with 4th order Butterworth lowpass filter. As results, the time difference and the deviation between peak accelerations for two amplitude levels were respectively less than 1 µs and quite less than 0.01 %.
- Keywords:
- shock, accelerometer, shock calibration, acceleration measurement, homodyne laser interferometer, heterodyne laser interferometer, laser Doppler vibrometer
- Download:
- IMEKO-TC22-2014-007.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC22
- Event name:
- TC22 Conference 2014
- Title:
3rd Conference on Vibration Measurement (together with 22nd TC3 Conference on the Measurement of Force, Mass and Torque and 12th TC5 Conference on the Measurement of Hardness)
- Place:
- Cape Town, SOUTH AFRICA
- Time:
- 03 February 2014 - 06 February 2014