TY - JOUR AU - Yudin, A. AB - LITERATURE CITED I. A. E. Kovalev et al., in: Computer-Aided Measuring Machines and Systems in Precision Machine Building [in Russian], ENIMS, Moscow (1980). 2. B. Ya. Verkhoturov$ in: Control and Measurement Instruments and Interchangeability [in Russian], Standartov, Moscow (1969). A. S. Chebotarev, Least Squares Method with Elements of Probability Theory [in Russian], Geodezizdat, Moscow (1958). E. P. Krivtsov, P. A. Pavlov, UDC 531.74.083.4.082.54.001.5 Yu. V. Filatov, and A. M. Yudin A precision null detector is required for the angular position of a reflecting surface in various branches of metrology such as angle measurement by dynamic methods (with a laser goniometer or a goniometer basedon determining the transit time for the angle), as well as in measuring the oscillation periods of pendulum systems and monitoring manipulators in robot- ics. Autocollimators can be used as null detectors, but the error in the null detection is at best 0.2-0.5", while constraints are imposed by the considerable dimensions, Interference systems are more promising for precision null detection. The first interference-type null detector [i] was a double=beam interferometer employing a white-light source and a beam splitter as a Kosters prism, with the two halves cemented to- gether at a small angle. In the normal TI - An interference-type null detector for the angular position of an object JO - Measurement Techniques DO - 10.1007/BF00864082 DA - 2004-12-06 UR - https://www.deepdyve.com/lp/springer-journals/an-interference-type-null-detector-for-the-angular-position-of-an-0tHGTGsmL8 SP - 272 EP - 275 VL - 29 IS - 4 DP - DeepDyve ER -