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High-precision double-redundancy rotation direction-recognizable rotation speed sensor

A speed sensor and rotation direction technology, applied in the field of sensing, can solve problems such as short life, low reliability, and insufficient precision of speed measurement data, and achieve the effect of increasing the measurement margin and improving reliability

Inactive Publication Date: 2017-03-22
JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, on the one hand, the traditional speed sensor has disadvantages such as low reliability and short life; on the other hand, the data accuracy of the speed measurement is not high enough, and it cannot distinguish the direction of rotation

Method used

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Embodiment Construction

[0013] In order to better illustrate the present invention, it will be described in detail below in conjunction with the accompanying drawings.

[0014] see figure 1 , which is a structural schematic diagram of the rotational speed sensor of the present invention.

[0015] A high-precision double-redundancy speed sensor that can distinguish the direction of rotation, including a sensing gear 1, a Hall element 2, a housing 3, a magnetic steel 4, a circuit board 5, a wire 6, and an aviation plug 7. The Hall element 2. The magnetic steel 4 and the circuit board 5 are located inside the housing 3, the Hall element 2 is located between the front end of the housing 3 and the magnetic steel 4 and next to the housing 3 and the magnetic steel 4, and the circuit board 5 is located behind the magnetic steel 4 , and there is a certain distance between each other, the Hall element 2 is connected to the circuit board 5 through the wire 6, and the circuit board 5 and the aviation plug 7 are...

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Abstract

The invention belongs to the sensing field and relates to a high-precision double-redundancy rotation direction-recognizable rotation speed sensor. The rotation speed sensor adopts a dual-sensor structure, thereby realizing double-redundancy design of the sensor and improving the sensor reliability; and meanwhile, through the design of a sensing gear structure, a rotation direction can be recognized according to an output signal phase difference relationship between two sensors. Defects that the traditional rotation speed sensor is low in reliability, the rotation direction can not be recognized and the like can be overcome, and the problems of reliability and direction recognition of a rotation speed measurement system are solved.

Description

technical field [0001] The invention belongs to the field of sensing and relates to a novel rotational speed sensor. . Background technique [0002] Traditional speed sensors are generally designed with single redundancy, and usually only measure the speed. In fact, the measurement of the speed data includes both the speed measurement and the identification of the rotation direction. Therefore, on the one hand, the traditional speed sensor has disadvantages such as low reliability and short life; on the other hand, the data accuracy of the speed measurement is not high enough, and the rotation direction cannot be distinguished. Contents of the invention [0003] The object of the present invention is to provide a rotational speed sensor with high precision and double redundancy which can distinguish the direction of rotation. [0004] The technical solution of the present invention is: a high-precision double-redundancy speed sensor that can distinguish the direction of ...

Claims

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Application Information

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IPC IPC(8): G01P3/487G01P13/04G01D21/02
CPCG01P3/487G01D21/02G01P13/045
Inventor 曹高奇凡正茂雷体高王银韩超何洪亮
Owner JINCHENG NANJING ELECTROMECHANICAL HYDRAULIC PRESSURE ENG RES CENT AVIATION IND OF CHINA