A stroboscopically illuminated ESPI system is described for the simultaneous measurement of vibration amplitude and phase. The technique involves modulating both the illumination pulse phase relative to the vibration, and the optical phase of the interferometer reference beam to generate eight video frames which are processed to yield vibration amplitude and phase.
|Title of host publication||Proceedings of SPIE - The International Society for Optical Engineering|
|Number of pages||8|
|Publication status||Published - 1994|
|Event||Optical Measurements and Sensors for the Process Industries - Frankfurt, Ger|
Duration: 19 Jun 1994 → 19 Jun 1994
|Conference||Optical Measurements and Sensors for the Process Industries|
|Period||19/06/94 → 19/06/94|