Abstract
A common light path design of heterodyne speckle pattern interferometer based on temporal speckle pattern interferometry is proposed for non-contact, full-field and real-time continuous displacement measurement. Double frequency laser is produced by rotating a half wave plate. An experiment was carried out to measure the dynamic displacement of a cantilever plate for testing the proposed common path heterodyne speckle pattern interferometer. The accuracy of displacement measurement was checked by measuring the motion at the mid-point of the plate with a point displacement sensor.
Original language | English |
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Title of host publication | 9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course |
Pages | 410-414 |
Number of pages | 5 |
Volume | 1253 |
DOIs | |
Publication status | Published - 20 Jul 2010 |
Event | 9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course - Ancona, Italy Duration: 22 Jun 2010 → 25 Jun 2010 |
Conference
Conference | 9th International Conference on Vibration Measurements by Laser and Noncontact Techniques and Short Course |
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Country/Territory | Italy |
City | Ancona |
Period | 22/06/10 → 25/06/10 |
Keywords
- Heterodyning
- Interferometer
- Speckle
ASJC Scopus subject areas
- General Physics and Astronomy