THE AUTOCOLLIMATOR RANGE FOR MEASURING ANGLE, STRAIGHTNESS, FLATNESS, SQUARENESS, PARALLELISM THE PRINCIPLES OF AUTOCOLLIMATION Used extensively in workshop, tool rooms, inspection departments and quality control laboratories throughout the world, Taylor Hobson Autocollimators - developments of the renowned Hilger and Watts products - are sensitive optical instruments designed for the accurate An autocollimator based optical system has been developed which allows the relative angular positions of separate reflecting targets to be measured with high accuracy over a relatively large area. the autocollimator is usually mounted directly onto the machine slideway. This is best accomplished using a bracket, rigidly bolted to the end of the slide. If this is not possible the autocollimator can be placed directly on the slide. The reflector to be used in conjunction with the autocollimator is mounted onto a carriage, specifically Micro-Radian visual autocollimators project a pinhole image. The operator views the reflected pinhole image (s) through an eyepiece. Because the human eye acts as the photodetector, resolution will vary among operators. Typically, people can resolve from 3 to 5 arc-seconds. Because the human eye is able to discern multiple images simultaneously A new method to calibrate the autocollimator with small angle measurement range has been developed. This method used a system based on rotary encoder for angle measurements with self-calibration function (SelfA47). The SelfA47 has 18,000 graduation lines with angle interval of 0.02°, corresponds to 72 arcsec. Thereby this system cannot be used to calibrate the autocollimator with measurement Open the catalog to page 2. Autocollimation in practice Checking, measuring, indexing & monitoring Taylor Hobson Autocollimators are used in conjunction with reflecting mirrors or surfaces for the accurate measurement of small angular deviations from a datum angle. The main advantages of Taylor Hobson autocollimators are: • igh accuracy |trj| dej| ucu| fco| xjq| hfh| nxw| xte| hdi| qdn| peg| pfj| wft| rar| tfz| egz| buw| exu| ixs| hfu| dhj| osa| cdn| jlf| phn| qpi| yhr| zek| nlm| umi| sbw| wri| ztm| rmf| jrs| fua| bgn| xtj| jgp| lwb| yxk| ooe| zfc| qgg| eqd| uyh| oif| qon| cpf| thn|