A Sensing Box for Magnetic Characteristic Measurement Considering Temperature Loading

Abstract

The invention discloses a magnetic characteristic measuring sensing box considering temperature loading. The magnetic characteristic measuring sensing box includes a lower heat insulation bin, a lowerceramic heating piece, a lower thermocouple temperature sensor, a lower silicon steel sheet, a composite coil positioning plate, a composite coil, an upper silicon steel sheet, an upper thermocoupletemperature sensor, an upper ceramic heating piece, an upper heat insulation bin and a DC stabilized power supply. The sensing box is divided into an upper layer and a lower layer, precise measurementof two-dimensional magnetic characteristics of actual working condition temperature loading of the silicon steel sheet material is achieved, a test sample can be independently heated, simultaneous heating of a magnet yoke and a pole head and as well as an exciting coil is avoided, the simultaneous heating affects an induced magnetic field of a test sample center area, and thus a measurement erroris produced. Meanwhile, the upper opening and lower opening area of a heat insulation sensing box is smaller than the cross section area of a bin body, which improves thermal energy utilization rateand can make the sample center area have a temperature balance area with a larger area.

Description

technical field [0001] The invention relates to the field of magnetic characteristic measurement, in particular to a magnetic characteristic measurement sensing box considering temperature loading. Background technique [0002] At present, the more common two-dimensional magnetic property measurement method of silicon steel sheet is to use the measuring device to generate a rotating magnetic field at any angle to the rolling direction, excite the magnetic field on the sample, collect the magnetic field signal after the sample is magnetized, and then input it to the signal The acquisition system records and stores, that is, a set of experimental measurements is completed. [0003] The traditional two-dimensional magnetic property measurement ignores the influence of temperature on the magnetic properties. Research has proved that the magnetic properties of silicon steel sheets are different at different temperatures. The electrical conductivity, magnetic permeability, core lo...

AI Technical Summary

Problems solved by technology

Because the iron core of the measuring device itself is also a magnetic material, the magnetic properties will also change with the change of temperature. This test method will affect the iron core of the measuring device, which will cause errors in the test results.

Images