Device and method for measuring temperature properties of permanent magnet and permanent magnet material in open circuit

A permanent magnet material and temperature characteristic technology, applied in the direction of magnetic performance measurement, etc., can solve the problems of poor repeatability and insufficient resolution, and achieve the effects of wide application range, high measurement accuracy and good measurement repeatability
CN102830375AInactive Publication Date: 2012-12-19SOUTHWEST INST OF APPLIED MAGNETICS
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTHWEST INST OF APPLIED MAGNETICS
Publication Date
2012-12-19
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of permanent magnet material property measurement and discloses a device for measuring temperature properties of a permanent magnet and a permanent magnet material in an open circuit, comprising a sample box (2), a temperature detection and processing unit (3), an induction voltage generating unit (4), an induction voltage detecting and processing unit (5), a sample drawing and controlling unit (6), a temperature realizing unit (7) and a computer controlling and processing unit (8). The invention further provides a method for measuring the temperature properties of the permanent magnet and the permanent magnet material in the open circuit. The device and the method disclosed by the invention have the beneficial effects that the shape of a sample to be detected is not limited, an application range is wide, the automatic measurement can be realized, the measurement repeatability is good and the measurement accuracy is high, so that the device and the method disclosed by the invention are particularly suitable for measuring the permanent magnet material with smaller measured temperature coefficient.
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Description

technical field

[0001] The invention relates to the technical field of measuring the characteristics of permanent magnet materials, in particular to a device and method for measuring the temperature characteristics of permanent magnets and permanent magnet materials in an open circuit. Background technique

[0002] Temperature characteristics are important characteristic parameters of permanent magnet materials, including reversible temperature coefficient and non-loss, which are especially concerned in the application of permanent magnet materials, so the measurement of temperature characteristics becomes more important. At present, there are three types of measurement methods for the temperature characteristics of permanent magnet materials: (1) The first type, such as the method required by the national standard GB / T24270-2009 "Measurement Method for Temperature Coefficient of Magnetic Properties of Permanent Magnetic Materials": measure different temperatures under a clos...

Claims

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