T100 autocollimator
An autocollimator is an optical instrument for non-contact measurement of angles. They are typically used to align components and measure deflections in optical or mechanical systems. An autocollimator works by projecting an image onto a target mirror and measuring the deflection of the returned image against a scale, either visually or by means of an electronic detector. A visual autocollimator can measure angles as small as 1 arc-second (4.85 micro-radians), while an electronic autocollimator can have up to 100 times more resolution.
1) The error or uncertainty of measurement of the master angle block. NOTE: The type of autocollimator used in the measurement will have a great influence on the resulting. The return image in visually centered between two target lines. Note: 1 arc second is approximately 4.85 microinches of taper per inch.
Visual autocollimators are often used for aligning laser rod ends and checking the face parallelism of optical windows and wedges. Electronic and digital autocollimators are used as angle measurement standards, for monitoring angular movement over long periods of time and for checking angular position repeatability in mechanical systems. Servo autocollimators are specialized compact forms of electronic autocollimators that are used in high-speed servo-feedback loops for stable-platform applications. An electronic autocollimator is typically calibrated to read the actual mirror angle.
![Autocollimator surface plate Autocollimator surface plate](http://webvision.med.utah.edu/imageswv/KallSpat4.jpg)
Electronic Autocollimator[edit]
The electronic autocollimator is a high precision angle measurement instrument capable of measuring angular deviations with accuracy down to fractions of an arc-second, by electronic means only, with no optical eye-piece.
EAC-1012
Measuring with an electronic autocollimator is fast, easy, accurate, and will frequently be the most cost effective procedure.Used extensively in workshops, tool rooms, inspection departments and quality control laboratories worldwide, these highly sensitive instruments will measure extremely small angular displacements, squareness, twist and parallelism.
Laser Analyzing Autocollimator[edit]
Today, a new technology allows to improve the Autocollimation instrument to allow direct measurements of incoming laser beams. This new capability opens a gate of inter-alignment between optics, mirrors and lasers.This technology fusion between a century-old technology of Autocollimation with recent laser technology offers a very versatile instrument capable of measurement of inter-alignment between multiple line of sights, laser in respect to mechanical datum, alignment of laser cavity, measurement of multiple rollers parallelism in roll to roll machinery, laser divergence angle and its spatial stability and many more inter-alignment applications.
![Autocollimator Autocollimator](/uploads/1/2/4/7/124735712/208816897.jpg)
See also[edit]
References[edit]
- Lowell, Tom. 'Small Angles and Autocollimators'. Vermont Photonics. Retrieved 7 May 2006.
- Morel, Jerrat. 'Principles of Operation'. Micro-Radian Instruments. Archived from the original on 7 May 2007. Retrieved 14 May 2007.
- Aharon, Oren. 'Metrology system for inter-alignment of lasers, telescopes, and mechanical datum'. Duma Optronics. Retrieved 12 October 2015.
- Aharon, Oren. 'Telescopic Analyzing System Tests Laser Collimation and Propagation'. Duma Optronics. Retrieved 5 June 2017.
- Aharon, Oren. 'Laser Autocollimator and Bore Sighting'. Duma Optronics. Retrieved 21 July 2014.
Retrieved from 'https://en.wikipedia.org/w/index.php?title=Autocollimator&oldid=906083028'