Absolute distance measurement with sub-fringe resolution
- Resource Type
- Authors
- N. Antonietti; M. Pisani; M. Zucco; A. Giugni
- Source
- International Conference on Space Optics — ICSO 2010.
- Subject
- Physics
business.industry
Resolution (electron density)
Measure (physics)
Michelson interferometer
Laser
law.invention
Interferometry
Wavelength
Optics
Distance measurement
law
business
Realization (systems)
- Language
A novel technique to measure absolute distances is presented. It is based on a Michelson interferometer where two tuneable lasers are superposed to create a synthetic wavelength. Relative and absolute interferometry theories are merged together. Its experimental realization allows absolute distance measurements with subfringe resolution. Preliminary results are presented in this work.