Multi-path absolute axis angle sensor
An absolute sensor technology, which is applied in the direction of transmitting sensing components, instruments, measuring devices, etc. with optical devices, can solve the problems of reducing the cost of shaft angle signal acquisition hardware, achieve high reliability, reduce hardware costs, and simplify the mechanical structure Effect
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Embodiment 2
[0060] The grating code wheel in the second embodiment adopts the code track of the Gray (Gray) encoding method, and the designed code track divides the 360° axis angle into share,
[0061] ,in, is the code channel number.
[0062] Embodiment two is illustrated by taking 10 code channels as an example, and the code channel structure of the design is shown in the attached Figure 7 , which divides the 360° axis angle into 1024 parts. In order to realize the acquisition of four axis angles on the same disk, and ensure that the axis angle values obtained by each axis angle acquisition are the same, it is necessary to design corresponding signal processing circuits and accessories. Figure 7 Compatible with the grating code disc shown.
[0063] See attached Image 6 , the four independent photoelectric axis angle acquisition circuits have a spatial difference of 90°, so the axis angle signals output by the infrared light receiving devices in each acquisition channel mu...
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