PHASE MEASUREMENT USING A BIAS DERIVATIVE SHIFT TECHNIQUE IN THE PHASE DIFFERENTIATION METHOD |
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| Hideo Furuhashi, Ryota Sugiyama, Yoshiyuki Uchida, Kiyofumi Matsuda, Chander P. Grover |
- Abstract:
- An improvement to phase measurement systems based on differentiation filters is proposed. The new technique involves calculations from measurements conducted using two different phase derivative biases. Advantages of the system are that it can be applied to semiopaque objects, and that the effects of non-uniformities in the intensity of the light source are negligible. Computer simulations are performed to verify the effectiveness of the technique.
- Keywords:
- phase measurement, differentiation filter, phase derivative
- Download:
- PWC-2003-TC2-021.pdf
- DOI:
- -
- Event details
- Event name:
- XVII IMEKO World Congress
- Title:
Metrology in the 3rd Millennium
- Place:
- Dubrovnik, CROATIA
- Time:
- 22 June 2003 - 28 June 2003