Patent ID: 7017274
Filing Date: 2006-03-28
Classification: G01D

Abstract:
1. Multi-turn angle measuring device ( 1 ) with a first dimensional standard ( 9 ), which is non-rotatably connected to an input shaft ( 2 ) and which is sampled with a first scanning unit ( 10 ) to determine an angular position of the input shaft ( 2 ), and with additional dimensional standards ( 11 , 12 , 13 ) that measure the number of turns of the input shaft ( 2 ), each additional dimensional standard ( 11 , 12 , 13 ) being reduced in speed by means of reduction gears from the preceding dimensional standard ( 9 , 11 , 12 ) arranged in parallel to each other, and a scanning device ( 21 , 22 , 23 ) for the sampling of each dimensional standard ( 11 , 12 , 13 ) arranged on a circuit board ( 6 ), wherein an input gear ( 40 ) connected to the input shaft ( 2 ) and a first transmission gear ( 41 ) have axes of rotation (D 40 , D 41 ) that are not parallel to each other, flanks of teeth (Z 40 , Z 41 ) of the input gear ( 40 ) and of a wheel ( 411 ) of the first transmission gear ( 41 ) are not parallel to the axis of input rotation (D 40 , D 41 ) of the respective gears ( 40 , 41 ), a number of the teeth (Z 40 ) of the input gear ( 40 ) is smaller than a number of the teeth (Z 41 ) of the wheel ( 411 ) of the first transmission gear ( 41 ), the following reduction gears are arranged parallel to the input shaft, and a pinion ( 412 ) of the first transmission gear ( 41 ) and the wheel of a second transmission gear ( 31 ) are configured as helical gears.