FIELD: measuring equipment.
SUBSTANCE: invention relates to measurement equipment and electrical engineering. Device comprises controlled drive 1, coupling 2, digital angle converter 3, circuit NAND 4, first AND circuit 5, first trigger 6, first shaper 7, delay circuit 8, first switch 9, first counter 10, second shaper 11, second trigger 12, second switch 13, third switch 14, pulse generator 15, recording device 16, second AND circuit 17, second counter 18, third shaper 19, control logic device 20. Device incorporates the following elements and articles (denoted by numbers): 2, 3, 4, 8, 9, 10, 11, 12, 13, 14, 18, 19, 20. New links of elements: 3-4-5-6-7; 6-8-9; 4-10-11-12-17-18-19- to two inputs 20; 3-13-16; 15-14-16; 12-13; 12-14; 20-1; 20-9.
EFFECT: improving measurement accuracy of non-uniformity of shaft instantaneous rotation speed and increasing information on its behavior within shaft rotation range.
1 cl, 3 dwg
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