CN208110021U - Wide temperature range magnetic flux temperature characteristic measuring device - Google Patents
Wide temperature range magnetic flux temperature characteristic measuring device Download PDFInfo
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- CN208110021U CN208110021U CN201820705324.9U CN201820705324U CN208110021U CN 208110021 U CN208110021 U CN 208110021U CN 201820705324 U CN201820705324 U CN 201820705324U CN 208110021 U CN208110021 U CN 208110021U
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Abstract
The utility model discloses a kind of wide temperature range magnetic flux temperature characteristic measuring devices.The device includes：Sample room comprising be respectively used to place standard sample (6), the thermostatic chamber (11) of sample to be tested (7), alternating temperature chamber (12)；Inductive signal acquisition system is used to detect the magnetic flux signal difference of sample to be tested (7) Yu standard sample (6)；Temperature sensing and control system are at least used to regulate and control the temperature of alternating temperature chamber (12) and be measured；Computer control and processing system (5), connect with the inductive signal acquisition system and temperature sensing and control system, and at least for controlling the working condition of the temperature sensing and control system.Width temperature range magnetic flux temperature characteristic measuring apparatus structure provided by the utility model is simple, easy to use, improves the precision of magnetic flux signal measurement, be suitble to measurement temperature coefficient better than -1%%/DEG C low-temperature coefficient permanent-magnet material.
Description
Technical field
In particular to a kind of wide temperature range magnetic flux temperature characteristic measuring device of the utility model, belongs to magnetic material measuring technology
Field.
Background technique
Permanent-magnet material is widely used in advanced weaponry equipment, the temperature of permanent-magnet material itself as important function element
Stability directly determines the stability and reliability of entire weaponry.It is right with the development of weaponry requirements for high precision
Permanent-magnet material magnetic flux proposes 30ppm/ DEG C of surge requirements, this index not only proposes the exploitation of high stability permanent-magnet material
Higher requirement, while huge challenge is brought to the detection technique of permanent-magnet material.
102830375 A of CN disclose the device that permanent magnet and permanent-magnet material magnetic flux temperature characterisitic are measured in open circuit and
Method obtains letter in such a way that sample lifts in helmholtz coil and generates induced electromotive force according to electromagnetic induction principle
Number, sample temperature varying system is separated with signal generation system and sample lifting control system, avoids electricity during example temperature lift-down
The influence to magnetic flux signal is flowed, but the disadvantage is that the temperature-controlled precision of sample is low.
Especially measurement temperature coefficient better than 0.3%%/DEG C ultra low temperature coefficient permanent-magnet material, existing detection device
All there is the problems such as low resolution ratio such as temperature-controlled precision difference or signal acquisition low precision, poor repeatability with method, needs a kind of more preferable
Measurement method meet high-precision detect the needs of.
Utility model content
It is existing to overcome the main purpose of the utility model is to provide a kind of wide temperature range magnetic flux temperature characteristic measuring device
The deficiency of technology.
For the aforementioned purpose of utility model of realization, the technical solution adopted in the utility model includes：
The utility model embodiment provides a kind of wide temperature range magnetic flux temperature characteristic measuring device comprising：
Sample room comprising be respectively used to place standard sample (6), the thermostatic chamber (11) of sample to be tested (7), alternating temperature chamber
Room (12)；
Inductive signal acquisition system is connect with thermostatic chamber (11), alternating temperature chamber (12) respectively, and at least for detecting
The magnetic flux signal difference of sample to be tested (7) and standard sample (6)；
Temperature sensing and control system are connect with alternating temperature chamber (12), and at least for the temperature to alternating temperature chamber (12)
Degree is regulated and controled and is measured；
Computer control and processing system (5), with the inductive signal acquisition system and temperature sensing and control system
Connection, and at least for controlling the working condition of the temperature sensing and control system.
The utility model implementation additionally provides a kind of wide temperature range magnetic flux temperature characteristic measuring method, and the method is based on institute
What the wide temperature range magnetic flux temperature characteristic measuring device stated was implemented, and the method includes：
Drive standard sample 6, sample to be tested 7 respectively in inductive signal acquisition and processing system with sample rotation control system
Simultaneously cutting magnetic line is rotated in interior corresponding helmholtz coil 21 and generates induced voltage signal,
Regulate and control and detect the temperature of sample to be tested 7 using temperature sensing and control system simultaneously,
The induced voltage signal generated by standard sample 6, sample to be tested 7 is carried out with inductive signal acquisition and processing system
Processing, obtains the induced voltage signal difference of the two, and is converted to magnetic flux signal difference,
And benefit is computerizedd control and the temperature data of the reception sample to be tested 7 of processing system 5, the magnetic flux signal difference
Value, and the magnetic flux temperature characterisitic value of sample to be tested is calculated, the magnetic flux temperature characterisitic value includes sample to be tested in different temperatures
Flux value B, the magnetic flux temperature coefficient Δ B/B of point0Average flux temperature coefficient under Δ T and different temperatures section.
Compared with prior art, wide temperature range magnetic flux temperature characteristic measuring device and method provided by the utility model uses sample
The mode of product overturning generates induced voltage signal, using the method for two helmholtz coil induced voltage signal differentials, improves
The precision of magnetic flux signal measurement；Using special temperature sensing and control system, heating method is not only avoided to magnetic flux signal
Interference, can with real-time monitoring and control sample to be tested temperature, improve temperature controlled precision；The measurement method of offer is surveyed
Accuracy of measurement is high, be suitble to measurement temperature coefficient better than -1%%/DEG C low-temperature coefficient permanent-magnet material.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of width temperature range magnetic flux temperature characteristic measuring device in the utility model embodiment 1；
Fig. 2 is the structural schematic diagram of alternating temperature chamber in the utility model embodiment 1；
Fig. 3 is a kind of structural schematic diagram of width temperature range magnetic flux temperature characteristic measuring device in the utility model embodiment 2.
Specific embodiment
In view of deficiency in the prior art, inventor is studied for a long period of time and is largely practiced, and is able to propose that this is practical new
The technical solution of type.The technical solution, its implementation process and principle etc. will be further explained as follows.
The utility model embodiment provides a kind of wide temperature range magnetic flux temperature characteristic measuring device comprising：
Sample room comprising be respectively used to place standard sample 6, the thermostatic chamber 11 of sample to be tested 7, alternating temperature chamber 12；
Inductive signal acquisition system is connect with thermostatic chamber 11, alternating temperature chamber 12 respectively, and at least to be measured for detecting
The magnetic flux signal difference of sample 7 and standard sample 6；
Temperature sensing and control system are connect with alternating temperature chamber 12, and at least for the temperature of alternating temperature chamber 12 into
Row regulation and measurement；
Computer control and processing system 5, connect with the inductive signal acquisition system and temperature sensing and control system
It connects, and at least for controlling the working condition of the temperature sensing and control system.
In some more specific embodiments, the thermostatic chamber 11 includes room temperature sample stage 13 and room temperature sample
Room pedestal 14, the alternating temperature chamber 12 include alternating temperature sample stage 15 and alternating temperature sample room pedestal 16.
In some more specific embodiments, the inductive signal acquisition system includes：
Two helmholtz coils 21 being arranged in series are respectively used to the induction of acquisition standard sample 6, sample to be tested 7
Voltage signal；
Voltage signal conversion and amplifying device are used to collect and handle the sense that described two helmholtz coils 21 generate
It answers voltage signal difference and is converted into magnetic flux signal difference, then by magnetic flux signal differential transmission to computer control and processing system
System.
Further, the wide temperature range magnetic flux temperature characteristic measuring device further includes sample rotation control system, is used
In drive standard sample 6, sample to be tested 7 respectively in two helmholtz coils 21 rotation and cutting magnetic line and generate induction
Voltage signal.
Further, the sample rotation control system includes the rotary electric machine 31 and specimen holder 32 of transmission connection, institute
Specimen holder 32 and room temperature sample stage 13, the alternating temperature sample stage 15 stated are sequentially connected.
In some more specific embodiments, the temperature sensing and control system include：
Temperature sensor 41,
Temperature measuring set 42,
Temperature realization device 43 is used to regulate and control the temperature of sample to be tested 7.
Preferably, the temperature realization device 43 includes heating system 431, cooling system 432 and blower system 433.
In some more specific embodiments, the temperature sensing and control system are connected to the alternating temperature chamber 12
And high and low temperature chamber is formed, and the temperature realization device 43 is arranged far from the inductive signal acquisition system.
Further, computer control and processing system 5 are also used to control the sample rotation and control system
Working condition.
In some more specific embodiments, the standard sample 6 be the alnico with the single direction of magnetization forever
Magnet；The sample to be tested 7 is the permanent magnet with the single direction of magnetization of arbitrary shape.
The utility model implementation additionally provides a kind of wide temperature range magnetic flux temperature characteristic measuring method, and the method is based on institute
What the wide temperature range magnetic flux temperature characteristic measuring device stated was implemented, and the method includes：
Drive standard sample 6, sample to be tested 7 respectively in inductive signal acquisition and processing system with sample rotation control system
Simultaneously cutting magnetic line is rotated in interior corresponding helmholtz coil 21 and generates induced voltage signal,
Regulate and control and detect the temperature of sample to be tested 7 using temperature sensing and control system simultaneously,
The induced voltage signal generated by standard sample 6, sample to be tested 7 is carried out with inductive signal acquisition and processing system
Processing, obtains the induced voltage signal difference of the two, and is converted to magnetic flux signal difference,
And benefit is computerizedd control and the temperature data of the reception sample to be tested 7 of processing system 5, the magnetic flux signal difference
Value, and the magnetic flux temperature characterisitic value of sample to be tested is calculated, the magnetic flux temperature characterisitic value includes sample to be tested in different temperatures
Flux value B, the magnetic flux temperature coefficient Δ B/B of point0Average flux temperature coefficient under Δ T and different temperatures section.
In some more specifically embodiments, referring to Fig. 1, the utility model provides a kind of wide temperature range high-precision
Measure the device of permanent-magnet material and permanent magnet devices magnetic flux temperature characterisitic, including sample room, inductive signal acquisition and processing system, sample
Product rotation and control system, temperature sensing and control system, computer control and processing system 5.
The sample room includes thermostatic chamber 11 and alternating temperature chamber 12；The thermostatic chamber 11 is for placing standard sample
Product 6, can for it is closed can also be with open type, preferably open type；The alternating temperature chamber 12 is used to place sample to be tested 7, and
Sample to be tested 7 is kept the temperature.
In some more specific embodiments, sample room includes：Desoak chamber 11 and alternating temperature chamber 12；Desoak chamber
11 include room temperature sample stage 13, is at least used for fixed standard sample 6, is formed by non-magnet material, preferably polytetrafluoroethylene (PTFE)；
Sample stage 13 is placed in the homogeneity range of helmholtz coil 21；Desoak chamber pedestal 14 is formed by non-magnet material, preferably aluminium
Alloy has through-hole in the middle part of desoak chamber pedestal 14.Alternating temperature chamber 12 includes sample stage 15, and sample stage 15 is at least to be measured for fixing
Sample 7, is formed by non-magnet material, preferably high-purity red copper；Alternating temperature chamber pedestal 16 is formed by non-magnet material, preferably aluminium
Alloy, there are two through-holes for alternating temperature chamber pedestal 16；Insulation cover 17, shell are non-magnet material, and center-filled heat-barrier material is heat-insulated
Material is preferably asbestos or vacuum cavity, and insulation cover upper end has can be with the through-hole of mounting temperature sensor 41.
The inductive signal acquisition is with processing system using calculating sample to be tested 7 and 6 magnetic flux signal differential of standard sample
Mode, improve magnetic flux signal measurement accuracy comprising two helmholtz coils 21, one for standard sample 6 incude
Signal acquisition, one acquires for 7 inductive signal of sample to be tested.
The sample rotation and the control system cutting magnetic line in such a way that sample is overturn in coil generate voltage letter
Number, specially rotary electric machine 31 drives the sample stage 13/15 in sample room 1 respectively in two He Muhuo by two specimen holders 32
Hereby overturn in coil 21, two sample stages 13/15 can rotate synchronously it is also asynchronous rotate, preferably rotate synchronously.
In some more specific embodiments, sample rotation and control system be at least used to control standard sample and to
The rotation of sample, including specimen holder 31, specimen holder is formed by non-magnet material, preferably quartz glass, one end of specimen holder
Enter connection sample stage 13/15, specimen holder and sample in 21 homogeneity range of helmholtz coil across the through-hole of sample room pedestal 14/16
The connection type of sample platform is preferably crankshaft link, and the other end connects rotary electric machine 32；Rotary electric machine 32 is acquired far from inductive signal
With processing system 2, for driving standard sample 6 and sample to be tested 7 to change the line of production respectively in two helmholtz coils, 21 homogeneity range varus
Raw induced voltage, the rotary electric machine 32 are controlled by computer control and processing system 5.
The inductive signal acquisition and processing system believe induced voltage for detecting and handling induced voltage signal
Number it is converted into magnetic flux data；The inductive signal acquisition includes two helmholtz coils being connected in series with processing system
21, for distinguishing the inductive voltage value of examination criteria sample 6 and sample to be tested 7；Voltage signal conversion and amplifying device 22, as
One of preferred embodiment is fluxmeter, for collecting and handling the induced voltage signal difference of two helmholtz coils 21 generation, and
Induced voltage signal is converted into magnetic flux numerical value, and by magnetic flux data transfer to computer control and processing system 5.
The temperature sensing and control system, for measuring and controlling the temperature of sample to be tested 7, with 12 groups of alternating temperature chamber
At high and low temperature chamber.Temperature sensing and control system include temperature sensor 41, and temperature sensor 41 is installed on sample stage
It is contacted in the aperture of 15 bottoms and with sample to be tested 7, for constantly measuring the temperature signal of sample to be tested；Temperature measuring set 42,
For receiving the temperature signal of temperature sensor 41 and show the temperature value of sample to be tested 7, and temperature value is transmitted to calculating
Machine control and processing system 5；Temperature realization device 43 reaches control to test sample for being heated or being cooled down to sample to be tested
Product are to set temperature and the function that keeps temperature stable.The temperature realization device 43 is far from the helmholtz coil 21；
The temperature realization device 43 includes heating system 431, is used for the heat temperature raising to high-low temperature test chamber, is controlled by described
Computer control and processing system 5；Cooling system 432 is controlled by described for cooling to high-low temperature test chamber
Computer control and processing system 5；Blower system 433 is played to the heat dissipation of sample to be tested 7 and alternating temperature chamber 12 equalizing temperature
Effect, makes the temperature of sample to be tested 7 in the temperature-changing chamber 12 reach set temperature, and temperature is kept to stablize.
The computer control and processing system 5, for controlling rotary electric machine in the sample rotation and control system
32 rotation；Control temperature heating and the cooling in the temperature sensing and control system in temperature realization device 43；Receive letter
Number acquisition with processing system in voltage signal conversion and amplifying device 22 magnetic flux or voltage signal；Receive temperature sensing and control
The temperature value of temperature measuring set 42 in system；Processing data simultaneously calculate the magnetic flux temperature coefficient Δ B/B under different temperatures0ΔT。
The utility model provides a kind of wide temperature range magnetic flux temperature characteristic measuring method simultaneously, according to electromagnetic induction principle,
Make sample to be tested 7 and standard sample 6 in the He Muhuo of inductive signal acquisition and processing system using sample rotation and control system
Hereby overturning generates induced electromotive force difference in coil 21, and computer control and processing system 5 will be transferred to after signal enhanced processing,
Real-time temperature control is carried out to sample to be tested 7 using special high/low temperature baking oven simultaneously, and sample to be tested temperature is transferred to computer
Control and processing system 5, computer control and processing system 5 calculate the flux value B of sample to be tested different temperature points, magnetic flux temperature
Spend coefficient delta B/B0The magnetic fluxs temperature characterisitic values such as the average flux temperature coefficient under Δ T and different temperatures section.
The technical solution, its implementation process and principle etc. further will be solved with reference to the drawings and specific embodiments as follows
Release explanation.
Embodiment 1
Referring to Fig. 1, the present embodiment when sample to be tested alternating temperature and by the way of constant temperature standard sample magnetic flux difference, measures
Permanent-magnet material and permanent magnet magnetic flux temperature characterisitic.
One of the present embodiment width temperature range magnetic flux temperature characteristic measuring device is by sample room, inductive signal acquisition and processing
System, sample rotation and control system, temperature sensing and control system, computer control and processing system 5 form.
Sample room includes thermostatic chamber 11 and alternating temperature chamber 12.Thermostatic chamber 11 is by sample stage 13 and with the room temperature of through-hole
Chamber pedestal 14 forms, and standard sample 6 is fixed on sample stage 13；Alternating temperature chamber 12 is as shown in Fig. 2, by sample stage 15, have
Alternating temperature chamber pedestal 16, the insulation cover 17 of two through-holes form, and sample to be tested 7 is fixed on sample stage 15.
Inductive signal acquisition is used to measure the difference of sample to be tested Yu standard sample induced voltage signal with processing system, will
Voltage difference is amplified to be converted into magnetic flux numerical value, and by magnetic flux data transfer to computer control and processing system 5.By two
The helmholtz coil 21 and fluxmeter 22 of series connection form.The input terminal of fluxmeter 22 connect with two after Helmholtz line
The output end of the output end connection of circle 21, fluxmeter 22 is controlled with computer and processing system 5 is connect.
Sample rotation and control system are used to control the rotation of standard sample 6 and sample to be tested 7, by two specimen holders 31,
One rotary electric machine 32 forms.Two 31 one end of specimen holder are connect with sample stage 13,15 crankshafts respectively, other end and rotation electricity
Machine 32 connects, and rotary electric machine 32 is controlled with computer and processing system 5 is connect, and is turned by computer control and the control of processing system 5
Dynamic motor 32 drives standard sample 6 and sample to be tested 7 in helmholtz coil by two specimen holders 32 and sample stage 13 and 15
It is overturn in 21 homogeneity range, generates induced voltage signal.
Temperature sensing and control system are used to measure and control the temperature of sample to be tested 7, are surveyed by temperature sensor 41, temperature
Instrument 42, the composition of temperature realization device 43 are measured, collectively constitutes high and low temperature chamber with alternating temperature chamber 12.Wherein temperature realization device
43 are made of heating device 431, cooling device 432 and blower system 433.Temperature realization device 43 by sample base through-hole with
Alternating temperature chamber 12 communicates, and receives computer control and the instruction of processing system 5 is heated or cooled down to sample to be tested 7, temperature
Sensor 41 and temperature measuring set 42 measure and show the temperature of sample to be tested 7, by temperature value be transferred to computer control and
Processing system 5.
Heating device 431 selects Resistant heating, heats to sample to be tested 7, and blower system 433 dissipates sample to be tested
Heat and 12 equalizing temperature of alternating temperature chamber, make sample to be tested 7 reach preset temperature；Cooling device 432 selects compressor and refrigeration
Agent or liquid nitrogen plan cool down to sample to be tested 7, realize the test of room temperature following temperature.
Computer control and processing system 5 issue temperature control instruction to temperature realization device；It is issued to rotary electric machine 32
Rotation command；Record the temperature signal that temperature sensor 41 and temperature measuring set 42 convey；Receive the magnetic flux output of fluxmeter 22
Signal；It calculates and handles received temperature and magnetic flux numerical value obtains the magnetic flux temperature characterisitic of sample to be tested 7.
Embodiment 2
It please refers to shown in Fig. 3, in one of the present embodiment width temperature range magnetic flux temperature characteristic measuring device, sample room only has
Temperature-changing chamber 12 and sample to be tested 7；Inductive signal acquisition and processing system are made of single helmholtz coil 21 and fluxmeter 22,
What fluxmeter 22 was received and exported is the flux value of sample to be tested 7；Sample rotation and control system by single sample bar 15 and turn
Dynamic motor 32.Rotary electric machine 32 drives sample to be tested 7 to overturn in the homogeneity range in helmholtz coil 21 by specimen holder 15,
Fluxmeter 22 receives sample to be tested magnetic flux signal and is transferred to computer control and processing system 5；Other structures and 1 phase of embodiment
Together.
A kind of wide temperature range magnetic flux temperature characteristic measuring device provided in embodiment 1 and embodiment 2 is respectively adopted to carry out forever
Magnetic material and permanent magnet magnetic flux temperature characteristic measuring, wherein accepted standard sample be：The standard sample of Alnico8, Φ 10*10mm
Column；Sample to be tested 1：The sample column of low-temperature coefficient SmCo, Φ 10*10mm；Sample to be tested 2：High-performance SmCo (SC30) Φ 10*
The sample column of 10mm.
The results are shown in Table 1 for 1 test data of embodiment：
Table 1 is sample to be tested 1 and the corresponding test condition of sample to be tested 2 and test result in embodiment 1
2 test result of embodiment is as shown in table 2：
Table 2 is sample to be tested 1 and the corresponding test condition of sample to be tested 2 and test result in embodiment 2
It is shown by the measurement result (result i.e. in Tables 1 and 2) compared in embodiment 1 and embodiment 2, this is practical new
The wide temperature range magnetic flux temperature characteristic measuring device and method that type provides generates induced voltage signal by the way of sample overturning, adopts
With the method for two helmholtz coil induced voltage signal differentials, the precision of magnetic flux signal measurement is improved, using special temperature
Detection and control system, not only avoid interference of the heating method to magnetic flux signal, can be with real-time monitoring and control to test sample
The temperature of product improves temperature controlled precision；The measurement method precision of offer is high, be suitble to measurement temperature coefficient better than -1%%/
DEG C low-temperature coefficient permanent-magnet material.
It should be appreciated that above-described embodiment is only to illustrate the technical ideas and features of the present invention, it is ripe its object is to allow
The personage for knowing technique can understand the content of the utility model and implement accordingly, can not limit the utility model with this
Protection scope.All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover in the utility model
Within protection scope.
Claims (9)
1. a kind of width temperature range magnetic flux temperature characteristic measuring device, it is characterised in that including：
Sample room comprising be respectively used to place standard sample (6), the thermostatic chamber (11) of sample to be tested (7), alternating temperature chamber
(12)；
Inductive signal acquisition system is connect with thermostatic chamber (11), alternating temperature chamber (12) respectively, and at least to be measured for detecting
The magnetic flux signal difference of sample (7) and standard sample (6)；
Temperature sensing and control system are connect with alternating temperature chamber (12), and at least for the temperature of alternating temperature chamber (12) into
Row regulation and measurement；
Computer control and processing system (5), connect with the inductive signal acquisition system and temperature sensing and control system,
And at least for controlling the working condition of the temperature sensing and control system.
2. width temperature range magnetic flux temperature characteristic measuring device according to claim 1, it is characterised in that：The thermostatic chamber
It (11) include room temperature sample stage (13) and room temperature sample room pedestal (14), the alternating temperature chamber (12) includes alternating temperature sample stage
(15) and alternating temperature sample room pedestal (16).
3. width temperature range magnetic flux temperature characteristic measuring device according to claim 1, it is characterised in that：The inductive signal is adopted
Collecting system includes：
Two helmholtz coils (21) being arranged in series are respectively used to the sense of acquisition standard sample (6), sample to be tested (7)
Answer voltage signal；
Voltage signal conversion and amplifying device, are used to collect and handle the induction of described two helmholtz coils (21) generation
Voltage signal difference is simultaneously converted into magnetic flux signal difference, then by magnetic flux signal differential transmission to computer control and processing system.
4. width temperature range magnetic flux temperature characteristic measuring device according to claim 3, it is characterised in that further include sample rotation
Control system, with room temperature sample stage (13), alternating temperature sample stage (15) be sequentially connected, and at least for drive standard sample (6),
Sample to be tested (7) rotates simultaneously cutting magnetic line in two helmholtz coils (21) respectively and generates induced voltage signal.
5. width temperature range magnetic flux temperature characteristic measuring device according to claim 4, it is characterised in that：The sample rotation control
System processed includes the rotary electric machine (31) and specimen holder (32) of transmission connection, the specimen holder (32) and room temperature sample stage
(13), alternating temperature sample stage (15) is sequentially connected.
6. width temperature range magnetic flux temperature characteristic measuring device according to claim 1, it is characterised in that：The temperature sensing and
Control system includes：
Temperature sensor (41),
Temperature measuring set (42), and
Temperature realization device (43) is used to regulate and control the temperature of sample to be tested (7)；
The temperature realization device (43) includes heating system (431), cooling system (432) and blower system (433).
7. width temperature range magnetic flux temperature characteristic measuring device according to claim 6, it is characterised in that：The temperature sensing and
Control system is connected to the alternating temperature chamber (12) and forms high and low temperature chamber, and the temperature realization device (43) is remote
It is arranged from the inductive signal acquisition system.
8. width temperature range magnetic flux temperature characteristic measuring device according to claim 1, it is characterised in that：The computer control
It is also used to control the working condition of the sample rotation and control system with processing system (5).
9. width temperature range magnetic flux temperature characteristic measuring device according to claim 1 to 8, it is characterised in that：It is described
Standard sample (6) is the Al-Ni-Co permanent magnet with the single direction of magnetization；The sample to be tested (7) is that having for arbitrary shape is single
The permanent magnet of one direction of magnetization.
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| CN201820705324.9U CN208110021U (en) | 2018-05-11 | 2018-05-11 | Wide temperature range magnetic flux temperature characteristic measuring device |
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| CN201820705324.9U CN208110021U (en) | 2018-05-11 | 2018-05-11 | Wide temperature range magnetic flux temperature characteristic measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471009A (en) * | 2018-05-11 | 2019-11-19 | 中国科学院宁波材料技术与工程研究所 | Wide temperature range magnetic flux temperature characteristic measuring device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471009A (en) * | 2018-05-11 | 2019-11-19 | 中国科学院宁波材料技术与工程研究所 | Wide temperature range magnetic flux temperature characteristic measuring device and method |
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