CN2384229Y

CN2384229Y - Multi-sample wide temp. range magnetic performance measurer

Info

Publication number: CN2384229Y
Application number: CN 99217276
Authority: CN
Inventors: 李岫梅; 董生智; 张继凯; 王玉山
Original assignee: Central Iron and Steel Research Institute
Current assignee: Central Iron and Steel Research Institute
Priority date: 1999-07-27
Filing date: 1999-07-27
Publication date: 2000-06-21
Anticipated expiration: 2009-07-27

Abstract

The utility model belongs to a measuring device for permanent magnet material, which is particularly suitable for the temperature coefficient measurement of a multi-sample wide-temperature area. The utility model has the structure that a cooler, a heating plate, sample seats and a measuring coil are arranged in a box body. The utility model is characterized in that a sample rotary table is provided with a plurality of sample seats, and the bottom edge is provided with a positioning device of the rotary table; the rotary table is provided with radiation holes; the measuring coil is driven by a motor to lift. The utility model has the characteristics of simple and reasonable structure, high measuring precision, time saving and energy saving, and the environment consistency is good when straight-line steps are measured.

Description

The wide warm area magnetic property of various product measurement mechanism

This device belongs to the measuring equipment field of permanent magnetic material.Be specially adapted to the measurement of the temperature coefficient of a plurality of samples of wide warm area.

Measure the temperature coefficient performance devices of permanent magnetic material in the prior art, generally be to adopt czochralski method, promptly lift test coil under design temperature, sample is placed in the test coil in the quartz ampoule, and this permanent magnetism sample is gone on record by test coil at the magnetic property of this temperature.The major defect of this measurement mechanism is to lift test coil to be manual operations at every turn, and the measuring accuracy of each sample depends on the each manual speed that lifts test coil of operator, bigger as the pull rate error, then the measuring accuracy deviation is just bigger, so the people causes the operate miss of this measurement mechanism to be difficult to overcome.There is this measurement mechanism only can test a permanent magnetism sample more at every turn, (probe temperature is from-20 ℃-+200 ℃ because this method of testing measuring period is long, need slowly heat up to sample and are incubated), so adopt this measurement mechanism in detection, more serious to human and material resources and waste of time.It is fragile that this pick-up unit also has equipment in addition, the shortcomings such as poor repeatability of each testing result.

The purpose of this utility model is that a kind of features simple structure of proposition is reasonable, measuring accuracy is high and the wide warm area magnetic detection device of the various product in economic timesaving.

Purpose according to the utility model pick-up unit, the wide warm area magnetic detection device of the various product project organization that we proposed, answer emphasis to consider to change manual inspection into automatic detection, manual operations changes machinery control into, only measures 1 sample in the section in each measuring period and changes a plurality of samples of detection into.The structure of this device can be described in detail with reference to the accompanying drawings, and accompanying drawing 1 is faced the structural profile synoptic diagram for this device, and accompanying drawing 2 is for this device is overlooked, the structural representation of section, and accompanying drawing 3 is a kind of structural representation of this device sample rotary table among the embodiment.1 is casing in the accompanying drawings, and 2 is chamber door, and 3 is sample rotary table, 4 is the sample stage turning handle, and 5 for measuring the coil lifting rod, and 6 for measuring coil, 7 is linear stepping motor, and 8 is refrigeratory, and 9 is heating plate, 10 is fan, and 11 is steady arm, and 12 is pilot hole, 13 is louvre, and 14 is thermal detector, and 15 is specimen holder, 16 is sample, and 17 is control desk, and 18 is refrigeration machine.The composition of the wide warm area Magnetic Measurement of the various product of the utility model device is that refrigeratory 8 is housed in casing 1, heating plate 9, specimen holder 15 and measurement coil 6, the sample rotary table 3 that can place two or more specimen holders 15 is equipped with in the lower end that it is characterized in that casing 1, the sample stage turning handle 4 at top firmly is connected in the centre of sample rotary table 3 by link rod outside casing 1, in the upper end of measuring coil 6 the coil lifting rod 5 that stretches out casing 1 top is housed, the upper end of coil lifting rod 5 should link with linear stepping motor 7, refrigeratory 8 is equipped with in both sides in casing 1, in the bottom of sample rotary table 3 heating plate 9 is housed, fan 10 is housed in the rear wall of casing 1, and turntable steady arm 11 is equipped with on sample rotary table 3 next doors in lower end in casing 1.The further feature of this device has louvre 13 in addition on sample rotary table 3.Have pilot hole 12 with specimen holder 15 equal numbers at the edge of sample rotary table 3.The anglec of rotation of sample rotary table 3 should be greater than 360 °.The lift stroke of measuring the coil lifting rod should be at 15-80mm.Auxiliary device outside this device also has refrigeration machine 18, its refrigeration work end should link with refrigeratory 8, and power end should join with switch board 17, while heating plate 9, fan 10 linear stepping motors 7 all partly link with the control of switch board 17 respectively, and thermal detector 14 and measure that 6 image data of coil input to all that record in the switch board 17 stores and program control system in.Therefore but controlling recording instrument accurate recording is to the actual magnetic performance of a certain sample 16 under design temperature.The working routine of this device can be narrated with reference to the accompanying drawings.When opening chamber door 2, what of 16 quantity are placed on respectively on the specimen holder 15 uniformly per sample, close chamber door 2 then.According to setting program, switch board 17 will start refrigeration machine 18 or heating plate 9 and fan 10, after the temperature inside the box is fallen or rising to design temperature (60 ℃-+200 ℃), starting linear stepping motor 7, upgrade measurement coil 6 by measuring coil lifting rod 5, after finishing the measurement of a sample 16, measurement data then inputs to the registering instrument in the switch board, and this moment, the data that are recorded also had the sequence number of sample and the true temperature when measuring.Rotate the turning handle 4 of sample stage then, make second sample go to the measuring position and measure, program as hereinbefore.By that analogy, all under same condition, temperature and environment, measure at a plurality of samples on the test desk, after the measurement of finishing this design temperature, 17 of switch boards are according to the process of measurement requirement, be incubated after temperature in the casing 1 risen to next measurement temperature, then the measuring process chatted before repeating again of operator.So return multiple operation, can finish the measurement magnetic temperature coefficient data of a batch sample like this.This device compared with prior art, various product can shorten several times measuring period.Measurement effect can be got rid of operator's personal error, good reproducibility, and the environment high conformity of measuring samples, so measuring accuracy improves.Simultaneously to improving the comparability that similar sample temperature coefficient measures and consistance is significant and time-saving energy-saving.

Claims

1, the composition of the wide warm area magnetic property of a kind of various product measurement mechanism is that refrigeratory (8) is housed in casing (1), heating plate (9), specimen holder (15) and measurement coil (6), it is characterized in that the bottom in the casing (1) is equipped with the sample rotary table (3) that can place two or more specimen holders (15), the sample stage turning handle (4) at top firmly is connected in the centre of sample rotary table (3) by link rod outside casing (1), on measuring coil (6), the coil lifting rod (5) that stretches out casing (1) top is housed, the upper end of coil lifting rod (5) should link with linear stepping motor (7), refrigeratory (8) is equipped with in both sides in casing (1), in the bottom of sample rotary table (3) heating plate (9) is housed, turntable steady arm 11 is equipped with on the next door.Fan (10) is housed, lower end sample rotary table (3) in casing (1) in the rear wall of casing (1).

2,, it is characterized in that having on the sample rotary table (3) louvre (13) according to the described device of claim 1.

3, according to claim 1,2 described devices, the edge that it is characterized in that sample rotary table (3) has the pilot hole (12) with specimen holder 15 equal numbers.

4,, it is characterized in that the anglec of rotation of sample rotary table (3) should be greater than 360 ° according to the described device of claim 1

5, according to the described device of claim 1, the lift stroke that it is characterized in that measuring the coil lifting rod is 15-80mm.