High and low temperature magnetic field detection system

A detection system, high and low temperature technology, applied in the direction of magnetic performance measurement, measurement device, measurement of magnetic variables, etc., can solve the problems of unable to reflect whether the workpiece is heated, increase equipment power consumption, low heating efficiency, etc., to avoid Hall element failures , low power consumption, cost saving effect

CN104122515BActive Publication Date: 2017-02-15HANGZHOU MINGZHE MAGNETIC TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2017-02-15

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Abstract

The invention discloses a high-low temperature magnetic field detection system and relates to a device for detecting magnetic element magnetic field distribution characteristics under high-low temperature environments. The high-low temperature magnetic field detection system comprises a box, a measured workpiece and a Hall probe. The box is made of a nonmagnetic heat insulation material, the Hall probe is installed a heat insulation carrier capable of freely extending in and being drawn out of the box, an infrared temperature detecting instrument for measuring the temperature of the surface of the measured workpiece is arranged outside the box, a distance measuring device for measuring the distance between the Hall probe and the measured workpiece is further arranged on the outer portion of the box, and the measured workpiece performs refrigeration or heating through a liquid nitrogen inlet and a hot nitrogen inlet which are arranged on the box and are symmetrically distributed. The high-low temperature magnetic field detection system is quick in heating or refrigeration efficiency, small in power consumption and suitable for batch production, high-low temperature switching is performed in the box, a temperature fatigue test can be performed, and the high-low temperature magnetic field detection system is simple and convenient and reduces cost; the Hall probe enters the box during the measurement and is drawn out at once after the measurement is finished, and the damage to the Hall probe caused by high temperature is avoided.
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Description

technical field

[0001] The invention relates to a magnetic field detection device, in particular to a detection device for the magnetic field distribution characteristics of a magnetic element in a high and low temperature environment. Background technique

[0002] The detection of magnetic pole distribution is very widely used in modern science. At present, the existing transmission magnetic field detection system on the market is generally composed of Hall probes and product clamping. However, the development of modern science and technology is changing with each passing day, and the requirements for materials and devices are getting higher and higher, and the testing of various characteristics of materials and devices is becoming more and more important. Therefore, the requirements for various testing instruments are also getting higher and higher.

[0003] In the current production process, electric components often work in an environment higher than room temperature, so...

Examples

Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concept of the present invention.

[0026] combine figure 1 , figure 2 and image 3 , high and low temperature magnetic field detection system, including a box body 4, the workpiece 9 to be measured is arranged inside the box body 4, the workpiece to be tested 9 is installed on the workpiece clamping body 12, and the workpiece clamping body 12 is fixed on the clamping shaft 13, and the The bottom of the clamping shaft 12 is connected to the driving moto...