Abstract
An optical fiber Doppler velocimeter using a 3 × 3 coupler with a large path imbalance Mach-Zehnder interferometer for passive demodulation of Doppler wavelength shifts is demonstrated. The particle velocity on the free surface end of the Hopkinson bar is directly obtained using the all-fiber Doppler velocimeter. These data show good agreement with the particle velocity predicted using strain gage data combined with one-dimensional stress wave propagation theory.
Original language | English |
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Pages (from-to) | 328-332 |
Number of pages | 5 |
Journal | Experimental Mechanics |
Volume | 37 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1997 Sept |
All Science Journal Classification (ASJC) codes
- Aerospace Engineering
- Mechanics of Materials
- Mechanical Engineering