Noncontact, laser interferometer sweep gage
Abstract
A noncontract rotary inspection machine was developed which utilizes a focused beam from a laser interferometer to measure variations in the surfaces of the reflective, spherical test parts used to characterize precision machines. Digital output data from the laser display is converted to an analog signal which is available for additional processing to provide contour and/or surface texture information.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- November 1979
- Bibcode:
- 1979STIN...8023631B
- Keywords:
-
- Digital To Analog Converters;
- Interferometers;
- Nondestructive Tests;
- Surface Properties;
- Diamonds;
- Digital Data;
- Laser Applications;
- Manufacturing;
- Quality Control;
- Instrumentation and Photography