Rotating member rotation radian detection method based on triaxial magnetometer

A technology of rotating parts and three-axis magnetic force, which is applied in the field of Internet of Things systems, can solve the problems that the installation and connection are easily limited by the structure of the device, the sensor is easy to wear, and the detection accuracy and service life of the sensor are affected, so as to achieve accurate and reliable detection results and service life. Long-lasting, low-impact effects

Inactive Publication Date: 2019-11-26
ANHUI ZHONGKE INTELLIGENT PERCEPTION BIG DATA IND TECH RES INST CO LTD
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for detecting the rotation arc of a rotating part based on a three-axis magnetometer to solve the problem that the installation and connection of the sensor in the prior art are easily

Method used

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Example Embodiment

[0016] Example 1:

[0017] The invention provides a method for detecting the arc of rotation of a rotating part based on a three-axis magnetometer. A permanent magnet is fixed on the end surface of the rotating part, and a sensor with a built-in three-axis magnetometer is fixed to the machine on which the rotating part is installed through a support. On the rack, the detection end of the sensor faces the direction of the permanent magnet, and the permanent magnet periodically approaches the sensor with the rotation of the rotating part. The sensor detects the magnetic field intensity generated by the permanent magnet and sends it to the sensor’s microprocessor The magnetic field strength and the rotation time of the rotating part meet the sine curve function. When the magnetic field strength reaches the extreme value for the first time and the extreme value for the second time, the microprocessor determines the peak position and valley position of the sine curve and passes the mag...

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Abstract

The invention discloses a rotating member rotation radian detection method based on a triaxial magnetometer. The end surface of a rotating member is fixedly provided with a permanent magnet; a sensorwith the built-in triaxial magnetometer is fixedly arranged on a frame where the rotating member is mounted through a support member; the permanent magnet periodically approaches the sensor with the rotation of the rotating member; and the sensor detects magnetic field intensity of the permanent magnet and sends the magnetic field intensity to a microprocessor of the sensor. The magnetic field intensity and the rotation time of the rotating member meet a sine curve function; when the magnetic field intensity reaches an extreme value for the first time and reaches the extreme value for the second time, the microprocessor determines the peak position and trough position of a sine curve and analyzes sinusoidal transformation process of the magnetic field intensity according to change laws ofthe magnetic field intensity in the period of time, and then, calculates the rotation radian of the rotating member. The sensor does not need to be connected with the rotating member and the sensor has no rotation part, so that the service life is long, and the detection result is accurate and reliable.

Description

technical field [0001] The invention belongs to the field of Internet of Things systems, and in particular relates to a method for detecting the rotation arc of a rotating component based on a three-axis magnetometer. Background technique [0002] When detecting the rotation state of rotating parts, angle sensors are mostly used in the existing technology. Angle sensors are widely used in industrial and agricultural production, meteorology, environmental protection, national defense, scientific research, aerospace and other fields. They mainly detect and transmit the angle of rotation of parts to Control the system to achieve the effect of function transformation. However, the angle sensor needs to be connected to the axis of the rotating part, which cannot be used in many scenarios. For example, the shaft end of the rotating part is provided with other parts that cannot be directly connected to the sensor, or there is a lot of dust and debris, which will easily cause wear ...

Claims

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Application Information

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IPC IPC(8): G01B7/30
CPCG01B7/30
Inventor 杨锐吴晓伟张炜
Owner ANHUI ZHONGKE INTELLIGENT PERCEPTION BIG DATA IND TECH RES INST CO LTD
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