Measurement device for detecting the absolute angle of rotation of a rotating measurement object
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A technology of rotating angle and measuring equipment, applied in the direction of measuring device, converting sensor output, using mechanical device to transfer sensing components, etc., can solve the problem that it is impossible to determine the exact angular position of the axis of the measured object, etc.
Active Publication Date: 2013-12-18
AUMA RIESTER GMBH & CO KG
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With this known solution it is not currently possible to determine the exact angular position of the axis of the measured object
Method used
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[0029] figure 1 It is a schematic diagram of the control element 1 used to actuate the flow control mechanism 2-corresponding to the actuator 1. The flow control mechanism 2 is, for example, a valve, a gate, a throttle valve or a flapper.
[0030] The control element 1, corresponding to the actuator 1, usually consists of a motor 3 with a corresponding sensor device 10, an actuator driver 4 with a corresponding sensor device 11, a reduction gear 5 and a flow control mechanism 2. The control of the actuator 1 is performed by means of the upper-level control unit 12. The control unit 12 can be integrated into the actuator driver 4, it can be embedded in the actuator driver 4, or it can be implemented as a separate component. Generally, in the processing industry that manufactures products from raw materials or starting materials by applying chemical, physical or biological processes, the actuator driver 4 used for the flow control mechanism 2 in the processing is designed in such ...
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Abstract
The invention relates to a measurement device (9) for detecting the absolute angle of rotation (f) of a rotating measurement object, wherein a first gear wheel (Z1) is allocated to the shaft (8) of the measurement object, wherein the first gear wheel (Z1) is engaged directly or indirectly with at least one second gear wheel (Z2) and a third gear wheel (Z3) and wherein the tooth counts (z1, z2, z3) of the individual gear wheels (Z1, Z2, Z3) are different from each other, wherein a rotation angle encoder (D1, D2, D3) is allocated to each gear wheel (Z1, Z2, Z3) which detects the angles of rotation (fz1, fz2, fz3) of the allocated gear wheels (Z1, Z2, Z3), wherein there is a computing unit which determines at least the difference (fz1 - fz2) in the angle of rotation of the second gear wheel (Z2) to the first gear wheel (Z1) and the difference (fz1 - fz2); in the angle of rotation of the third gear wheel (Z3) to the first gear wheel (Z1) and, based on a sum (SumDiff = (fz1 - fz2) + (fz1 - fz3)) of the differences (fz1 - fz2, fz1 - fz3) of the determined angles of rotation (fz1, fz2, fz3) of the gear wheels (Z1, Z2, Z3), determines the number of whole-number revolutions and the remaining angle of rotation (fz1) of the shaft of the measurement object.
Description
Technical field [0001] The invention relates to a measuring device for detecting the absolute rotation angle of a rotating object to be measured. Background technique [0002] According to DE19821467A1, a one-, two- or multi-dimensional differential transmission is known, which is used for high-resolution measurement of the number of while numbered revolutions of a shaft. In the simplest case of a one-dimensional differential transmission, only two gears are used. They differ by one tooth in terms of the number of teeth. One of the gears is directly mounted on the shaft to be measured and drives the second gear. Based on the angular position of the two gears relative to each other, the number of rotations of the shaft can be determined. [0003] In addition, DE19821467A1 also discloses a two-dimensional differential transmission device with three gears, in which the first gear is also associated with the shaft to be measured, while the other two gears are directly and / or indirec...
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