Permanent magnet declination measuring meter and measurement method

Abstract

The invention relates to a permanent magnet magnetic declination measuring watch and a measurement method. The permanent magnet magnetic declination measuring watch comprises a watch shell, a scale base and a watch base which are connected with two sides of the watch shell, and a non-magnetic declination magnet, wherein the front face of the scale base is provided with a scale ring, which center is provided with a pointer which rotation shaft penetrates through the scale base, a test magnet at the back of the scale base is fixedly connected with the rotation shaft of the pointer, the center of the magnetic pole dividing line of the test magnet is at the rotation shaft of the pointer, the pointer is vertical to the magnetic pole dividing line of the test magnet, the center of the watch base is provided with a rectangle hole for arranging the non-magnetic declination magnet. The measurement method comprises: arranging a non-magnetic declination magnet into the rectangle hole of the measuring watch, adjusting zero, taking out the magnet, arranging an object magnet, considering the index of the pointer as the read number of the magnetic declination of the object magnet. The invention has simple measurement process, virtual magnetic deviation read number, fast identification and improved production efficiency.

Description

technical field [0001] The invention belongs to the field of motor manufacturing, and in particular relates to a permanent magnet magnetic declination measurement meter and a measurement method for ensuring the accuracy of an AC servo motor. Background technique [0002] High-precision AC servo motors have high requirements on the magnetic properties, magnetic field strength and magnetic declination of the permanent magnets used. The higher the precision of the motor, the smaller the magnetic declination of the permanent magnets used. Rotating permanent magnet servo motors must first overcome the cogging effect of the motor. Cogging occurs in the matched rotation of the stator and rotor of an AC servo motor. The rotor permanent magnet is a permanent magnet ring. To eliminate the cogging effect, it is necessary to make the radiation magnetic force lines of each permanent magnet forming the permanent magnet ring perpendicular to the magnetic pole boundary of the rotor magnet...

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly solves the technical problems of inconvenient, time-consuming and labor-intensive measurement of the magnetic declination angle of the original magnetic body, and provides a permanent measuring method that is convenient for measurement, greatly increases the measurement speed of the magnetic declination angle of the magnetic body, and improves production efficiency. Magnetic declination measuring table and measuring method

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