CN206974936U - Vacuum magnetothermal effect measuring instrument sample holding clamp - Google Patents
Vacuum magnetothermal effect measuring instrument sample holding clamp Download PDFInfo
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- CN206974936U CN206974936U CN201720506458.3U CN201720506458U CN206974936U CN 206974936 U CN206974936 U CN 206974936U CN 201720506458 U CN201720506458 U CN 201720506458U CN 206974936 U CN206974936 U CN 206974936U
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- vacuum
- measuring instrument
- leg
- holding clamp
- sample holding
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Abstract
The utility model discloses a kind of vacuum magnetothermal effect measuring instrument sample holding clamp, including fixed base, jackscrew and at least two legs；The bottom of leg is arranged on the top of pedestal, and leg is provided with horizontal thread through hole；Jackscrew is provided with external screw thread, and jackscrew is arranged in horizontal thread through hole.The utility model can make sample be in vacant state, and reduction contacts with surrounding objects, and then reduces sample heat transfer process.
Description
Technical field
A kind of magnetothermal effect measuring instrument is the utility model is related to, specifically, is related to a kind of vacuum magnetothermal effect measuring instrument and uses
Sample holding clamp.
Background technology
Room temperature magnetic refrigerating is a kind of solid-state Refrigeration Technique, is to be expected to substitute the new of traditional gas compression formula Refrigeration Technique
Refrigeration Technique.
With the development of new material new technology, the nearest more than ten years, room temperature magnetic refrigerating technological development by various countries' most attention,
And obtain incremental advances.This technology meets the requirements of the times of current sustainable development, it is considered to be one kind is hopeful to substitute
The green refrigeration technology of conventional refrigeration technology.Refrigerant used in room-temperature magnetic refrigerator is solid material, weighs material magnetic heat
The parameter of performance is that isothermal magnetic entropy becomes and adiabatic temperature becomes, and usual measuring method is divided into the direct method of measurement and the indirect method of measurement, indirectly
Mensuration is generally time-consuming and measurement cost is higher；The direct method of measurement is quick and convenient, and measurement cost is low.
The patent document of the patent No. 200520008166.4 discloses a kind of permanent-magnet magnetothermal effect direct measuring instrument, but
The product does not possess adiabatic condition when measuring sample, therefore can produce certain measurement error.
Utility model content
The technical problem that the utility model solves is to provide a kind of vacuum magnetothermal effect measuring instrument sample holding clamp,
Sample can be made to be in vacant state, reduction contacts with surrounding objects, and then reduces sample heat transfer process.
Technical scheme is as follows：
A kind of vacuum magnetothermal effect measuring instrument sample holding clamp, including fixed base, jackscrew and at least two legs；
The bottom of leg is arranged on the top of pedestal, and leg is provided with horizontal thread through hole；Jackscrew is provided with external screw thread, and jackscrew is arranged on horizontal stroke
Into tapped through hole.
Further：The bottom of leg sets mounting post, and the diameter of mounting post is less than the diameter of leg；The top of fixed base
Counterbore is provided with, mounting post is placed in counterbore.
Further：The profile of pedestal and leg is using cylinder.
Further：Leg is provided with operating surface in side wall, and horizontal thread through hole is opened on operating surface.
Further：The end of jackscrew is taper.
Further：Four legs are provided with pedestal.
Compared with prior art, the utility model technique effect includes：
The utility model can make sample be in vacant state, and reduction contacts with surrounding objects, and then reduce sample heat and pass
Lead process.
Brief description of the drawings
Fig. 1 is the structural representation of vacuum magnetothermal effect measuring instrument sample holding clamp in the utility model.
Embodiment
Technical solutions of the utility model are elaborated below with reference to example embodiment.However, example embodiment
It can in a variety of forms implement, and be not understood as limited to embodiment set forth herein；Conversely, there is provided these embodiments
So that the utility model is more comprehensively and completely, and the design of example embodiment is comprehensively communicated to those skilled in the art
Member.
As shown in figure 1, it is the structural representation of vacuum magnetothermal effect measuring instrument sample holding clamp in the utility model.
The structure of vacuum magnetothermal effect measuring instrument sample holding clamp includes：Fixed base 1, at least two legs 2, top
Silk 3；The bottom of leg 2 is arranged on the top of pedestal 1, and leg 2 is provided with horizontal thread through hole；Jackscrew 3 is provided with external screw thread, jackscrew
3 are arranged in horizontal thread through hole.
Further, in order to adjust the fixed-direction of sample, mounting post can also be set in the bottom of leg 2, mounting post
Diameter is less than the diameter of leg；The top of fixed base 1 is provided with counterbore, and mounting post is placed in counterbore.So, leg 2 is just
It can be rotated in counterbore, realize the fixed-direction of adjustment sample.
Pedestal 1, the profile of leg 2 use cylinder, and four legs 2 are provided with pedestal 1.Leg 2 is set in side wall
There is operating surface 21, horizontal thread through hole is opened on operating surface 21.The end of jackscrew 3 is taper, can so be reduced and sample
Contact surface, and then reduce heat conduction loss.
Between sample is placed on into leg 2, jackscrew 3 is rotated so that the end of jackscrew 3 is against on sample, and sample is held out against with jackscrew 3
Product, sample are in vacant state, not contacted with surrounding objects.During measurement, sample holding clamp is fixed on specimen holder, fixing card
Tool and sample are in vacuum chamber, basically reach adiabatci condition during measurement.Sample can move together with specimen holder, drive sample to enter
Go out magnetic field, sample produces adiabatic temperature and become, as magnetothermal effect.
According to magnetothermal effect principle, sample (magneto-caloric material) can produce heating or cooling under the magnetic fields of change
Phenomenon.The basic demand that the adiabatic temperature of measurement becomes is sample is measured in adiabatci condition.Heat transfer process is divided into radiation, right
Stream and conduction.When sample is more or less the same with the surrounding objects temperature difference, the influence of radiation can be neglected；Sample is under vacuum state and can neglected
The slightly influence of convection current.Sample contacts with surrounding objects can occur heat transfer, and the utility model makes sample be in vacant state, reduce
Contacted with surrounding objects, and then reduce sample heat transfer process.
Term used in the utility model is explanation and exemplary and nonrestrictive term.Due to the utility model energy
It is enough to be embodied in a variety of forms without departing from the spiritual or substantive of utility model, it should therefore be appreciated that above-described embodiment is unlimited
It in any foregoing details, and should widely be explained in the spirit and scope that appended claims are limited, therefore fall into power
Whole changes and remodeling in profit requirement or its equivalent scope all should be appended claims and covered.
Claims (6)
- A kind of 1. vacuum magnetothermal effect measuring instrument sample holding clamp, it is characterised in that：Including fixed base, jackscrew and at least Two legs；The bottom of leg is arranged on the top of pedestal, and leg is provided with horizontal thread through hole；Jackscrew is provided with external screw thread, top Silk is arranged in horizontal thread through hole.
- 2. vacuum magnetothermal effect measuring instrument sample holding clamp as claimed in claim 1, it is characterised in that：The bottom of leg is set Mounting post is put, the diameter of mounting post is less than the diameter of leg；Counterbore is provided with the top of fixed base, mounting post is placed on counterbore It is interior.
- 3. vacuum magnetothermal effect measuring instrument sample holding clamp as claimed in claim 1, it is characterised in that：Pedestal and leg Profile is using cylinder.
- 4. vacuum magnetothermal effect measuring instrument sample holding clamp as claimed in claim 1, it is characterised in that：Leg is in side wall Operating surface is provided with, horizontal thread through hole is opened on operating surface.
- 5. vacuum magnetothermal effect measuring instrument sample holding clamp as claimed in claim 1, it is characterised in that：The end of jackscrew is Taper.
- 6. the vacuum magnetothermal effect measuring instrument sample holding clamp as described in any one of claim 1 to 5, it is characterised in that：Platform Four legs are provided with seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506458.3U CN206974936U (en) | 2017-05-08 | 2017-05-08 | Vacuum magnetothermal effect measuring instrument sample holding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720506458.3U CN206974936U (en) | 2017-05-08 | 2017-05-08 | Vacuum magnetothermal effect measuring instrument sample holding clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206974936U true CN206974936U (en) | 2018-02-06 |
Family
ID=61413731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720506458.3U Active CN206974936U (en) | 2017-05-08 | 2017-05-08 | Vacuum magnetothermal effect measuring instrument sample holding clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206974936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991270A (en) * | 2019-04-08 | 2019-07-09 | 包头稀土研究院 | Magnetothermal effect measuring instrument temperature sensor fixing means |
-
2017
- 2017-05-08 CN CN201720506458.3U patent/CN206974936U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991270A (en) * | 2019-04-08 | 2019-07-09 | 包头稀土研究院 | Magnetothermal effect measuring instrument temperature sensor fixing means |
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