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Multi-path absolute axis angle sensor

A shaft angle and rotation angle technology, applied in the field of multi-channel absolute shaft angle sensors, can solve the problems of reducing the hardware cost of shaft angle signal acquisition, and achieve the effects of high reliability, simplified mechanical structure, and reduced hardware cost.

Inactive Publication Date: 2014-01-22
NAVAL UNIV OF ENG PLA
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AI Technical Summary

Problems solved by technology

Its beneficial effects are: the multi-channel infrared light emitting device, the infrared light receiving device and the rotation angle output device transmit and receive the axis angle signal through the rotating code disc, and realize the multi-channel independent acquisition and output of the axis angle signal, which overcomes the conventional The shaft angle signal acquisition method requires multiple photoelectric encoders or multiple self-aligning machines and complex gear devices, which simplifies the mechanical structure and reduces the hardware cost of shaft angle signal acquisition

Method used

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Embodiment 2

[0061] 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,

[0062] ,in, is the code channel number.

[0063] 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.

[0064] See attached Figure 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 m...

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Abstract

The invention discloses a multi-path absolute axis angle sensor. Multiple paths of electrically-independent axis angle signals are acquired by using a mechanical grating coded disk, multiple paths of electrically-independent absolute angle signals are provided, and angle values output by each axis angle signal acquiring channel are the same. The multi-path absolute axis angle sensor has the characteristics of low manufacturing cost, simple mechanical structure, simple resetting process, high reliability and the like.

Description

technical field [0001] The invention relates to a multi-channel absolute shaft-angle sensor, specifically utilizing the same mechanical structure of a photoelectric shaft-angle sensor to realize multi-channel electrical independent shaft-angle signal acquisition, and belongs to the technical field of photoelectric sensors in the sensor industry. Background technique [0002] The collection of rudder blade angle signals in the ship autopilot control system is a typical coaxial multi-channel shaft angle signal collection problem, and the shaft angle sensor is a commonly used sensor device in the control system. In practical applications, it is often necessary to solve the problem that multiple subsystems in the control system (such as display subsystem, control subsystem, alarm subsystem, etc.) or multiple different control systems need the same shaft angle signal, that is, coaxial multi-channel shaft angle signal Signal acquisition problem. Aiming at this problem, one soluti...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01D5/26G01B11/26
Inventor 周岗陈永冰刘勇陈阳习喜龙王度桥李文魁
Owner NAVAL UNIV OF ENG PLA
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