CN206657098U - Sectional type low temperature ferromagnetic resonance measuring system and its measuring instrument - Google Patents
Sectional type low temperature ferromagnetic resonance measuring system and its measuring instrument Download PDFInfo
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- CN206657098U CN206657098U CN201720344505.9U CN201720344505U CN206657098U CN 206657098 U CN206657098 U CN 206657098U CN 201720344505 U CN201720344505 U CN 201720344505U CN 206657098 U CN206657098 U CN 206657098U
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Abstract
The utility model discloses sectional type low temperature ferromagnetic resonance measuring system and its measuring instrument, including sample cavity；Signal wire in the sample cavity is at least divided into the first half steel wire articulamentum and the first flexible wires articulamentums；The first half steel wire articulamentums include heat screen, at least one first semi-rigid signal wire joint, at least one second semi-rigid signal wire joint and at least one semi-rigid signal wire；First flexible wires articulamentum includes heat screen, at least one first flexible signal wire terminal, at least one second flexible signal wire terminal and at least one flexible signal line；First semi-steel signal wire joint of the first half steel wire articulamentums connects sample by signal wire；Second flexible signal wire terminal of the first flexible wires articulamentum is close to sample cavity openend, the signal processing and analysis equipment and/or signal generating apparatus of the second flexible signal wire terminal connection ferromagnetic resonance measuring system of the first flexible wires articulamentum.
Description
Technical field
It the utility model is related to microwave resonance application technology, more particularly to sectional type low temperature ferromagnetic resonance measuring system and iron
Magnetic resonance device.
Background technology
Ferromagnetic material can be produced to microwave field under the collective effect of stationary magnetic field and microwave field near a certain frequency
RESONANCE ABSORPTION phenomenon.Ferromagnetic material magnetizes under constant external magnetic field, and first magnetic moment in ferromagnetic material will be around external magnetic field
Precession, is damped due to existing, and this precessional motion will decay.But if the frequency of additional microwave field is consistent with precession frequency
When, energy will be absorbed from microwave field to maintain its precession, solid produces to additional microwave field energy at said frequencies
One resonance absorbing peak.If magnetic moment is the electron spin magnetic moments in ferromagnet, referred to as ferromagnetic resonance.Ferromagnetic resonance can be accurate
The important parameters such as the magnetic conductivity of measurement material, the magnetic anisotropy of magnetic material, therefore be the survey of important magnetic material properties
Trial work section.
It can be selected when typically being measured at low temperature using ferromagnetic resonance instrument (Ferromagnetic Resonance, FMR) same
Axis signal line is excited and measured to sample, so signal transmission can be made to have less loss, the interference being subject to
Can be smaller, FMR measures large-scale use middle at low temperature.
But because the signal wire UNICOM room temperature environment and sample cavity of measurement, the heat of room temperature environment can pass along signal wire
It is delivered on sample so that the temperature temperature control of sample is unstable, and cooling is slow, or even drop is ground less than required temperature for material character
It is very big to study carefully influence.
Utility model content
The purpose of this utility model is the above-mentioned deficiency for overcoming prior art, there is provided a kind of sectional type low temperature is ferromagnetic common
Measuring system of shaking and measuring instrument, solves the problems, such as signal wire heat transfer, the influence for making sample be conducted heat by signal wire is minimum, makes sample
Temperature can obtain good control, so that measurement is more quick, accurate.
To realize object above, the utility model provides following technical scheme：
Sectional type low temperature ferromagnetic resonance measuring system, including sample cavity；Signal wire in the sample cavity is at least divided into
Half steel wire articulamentum and the first flexible wires articulamentum；
The first half steel wire articulamentum includes heat screen, at least one first semi-rigid signal wire joint, at least one
Second semi-rigid signal wire joint and at least one semi-rigid signal wire；The first semi-rigid signal wire joint passes through semi-rigid
Signal wire connects the second semi-rigid signal wire joint, and the first semi-rigid signal wire joint is arranged on heat screen；
The first flexible wires articulamentum includes heat screen, at least one first flexible signal wire terminal, at least one the
Two flexible signal wire terminals and at least one flexible signal line；The first flexible signal wire terminal is connected by flexible signal line
Second flexible signal wire terminal, the first flexible signal wire terminal are arranged on heat screen；
First semi-steel signal wire joint of the first half steel wire articulamentum connects sample by signal wire；Described first
Second flexible signal wire terminal of flexible wires articulamentum is soft close to sample cavity openend, the second of the first flexible wires articulamentum
Property signal wire joint connection ferromagnetic resonance measuring system signal processing and analysis equipment and/or signal generating apparatus.
Preferably, signal wire is respectively arranged at the both sides of heat screen with semi-rigid signal wire.
Preferably, the second of the first half steel wire articulamentums the semi-rigid signal wire connector connects the first flexible wires articulamentum
First flexible signal wire terminal, makes semi-rigid signal wire electrically connect conducting with flexible signal line.
Preferably, the first half at least one and half steel wires company is sequentially connected between steel wire articulamentum and the first flexible wires articulamentum
Connect layer and/or at least one flexible wires articulamentum.
Preferably, the heat screen of half firm line articulamentum and flexible wires articulamentum is provided with least one wire terminal, to
Connection wire.
Preferably, the first semi-rigid signal wire joint, the first flexible signal wire terminal and/or at least one wire terminal integrate
Have heat sink.
Preferably, the heat screen of the first half firm line articulamentums is provided with the first hollow out, and first hollow out is used for specimen holder
Pass through and support fixed sample.
Preferably, the heat screen of half firm line articulamentum and flexible wires articulamentum is provided with least one second hollow out, institute
The second hollow out is stated to be used to pass through for wire rod, equipment or light.
Preferably, signal processing and analysis equipment is mutually amplified including oscillograph, spectrum analyzer, vector network analyzer, lock
One or more in device, power detector and microwave signal source.
The utility model additionally provides a kind of ferromagnetic resonance instrument of the Signal Measurement System using described in above technical scheme.
Compared with prior art, sectional type low temperature ferromagnetic resonance measuring system and its measuring instrument provided by the utility model,
Have the advantages that：
Sectional type low temperature ferromagnetic resonance measuring system and measuring instrument provided by the utility model are divided by the way that signal wire is segmented
For half steel wire articulamentum and flexible connection layer, it is used alternatingly by flexible signal line and half steel wire, signal wire heat transfer is deposited on
Method in distributed heat shielding, solve the problems, such as that signal wire causes to sample heat transfer, the shadow for making sample be conducted heat by signal wire
Sound is minimum, and the temperature control or cooling for making sample also become easier to so that measurement is more quick, accurately.
Brief description of the drawings
It is of the present utility model by reading the detailed description made to non-limiting example made with reference to the following drawings
Other features, objects and advantages will become more apparent upon：
Fig. 1 is the structural representation of the utility model embodiment sectional type low temperature ferromagnetic resonance measuring system；
Fig. 2 is that the structure of half steel wire articulamentum of the utility model embodiment sectional type low temperature ferromagnetic resonance measuring system is shown
It is intended to；
Fig. 3 is that the structure of the flexible wires articulamentum of the utility model embodiment sectional type low temperature ferromagnetic resonance measuring system is shown
It is intended to；
Fig. 4 is the application schematic diagram of the utility model embodiment sectional type low temperature ferromagnetic resonance measuring system.
【Critical piece/component explanation】
100：The first half steel wire articulamentums
110：Heat screen
120：Second semi-rigid signal wire joint
130：Semi-rigid signal wire
140：First semi-rigid signal wire joint
150：First hollow out
160：Wire terminal
170：Second hollow out
200：First flexible wires articulamentum
210：Heat screen
220：Second flexible signal wire terminal
230：Flexible signal line
240：First flexible signal wire terminal
250：First hollow out
260：Wire terminal
270：Second hollow out
300：Signal wire.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the embodiment of the utility model is clearly and completely described, it is clear that is retouched
The embodiment stated is the utility model part of the embodiment, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be configured to arrange and design with a variety of.Therefore, below to attached
The detailed description of the embodiment of the present utility model provided in figure is not intended to limit claimed the scope of the utility model,
But it is merely representative of selected embodiment of the present utility model.Based on the embodiment in the utility model, ordinary skill people
The every other embodiment that member is obtained under the premise of creative work is not made, belong to the model of the utility model protection
Enclose.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", etc. the orientation of instruction or
Position relationship is based on orientation shown in the drawings or position relationship, is for only for ease of description the utility model and simplifies description,
Rather than instruction or imply signified device or element must have specific orientation, with specific azimuth configuration and operation, because
This is it is not intended that to limitation of the present utility model.In addition, term " first ", " second " are only used for describing purpose, and can not manage
Solve to indicate or implying relative importance.
In description of the present utility model, it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " installation ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected,
Or it is integrally connected；Can be mechanical connection or electrical connection；Can be joined directly together, intermediary can also be passed through
It is indirectly connected, can is the connection of two element internals.For the ordinary skill in the art, can be according to specific feelings
Condition understands concrete meaning of the above-mentioned term in the utility model.
In addition, the technical scheme between each embodiment of the utility model can be combined with each other, but must be with ability
Domain those of ordinary skill can be implemented as basis, will be understood that when the combination appearance of technical scheme is conflicting or can not realize
The combination of this technical scheme is not present, also not within the protection domain of the requires of the utility model.
The utility model is further described with exemplary embodiment below in conjunction with the accompanying drawings, wherein if it is known that technology
Detailed description for showing that feature of the present utility model is unnecessary, then omitted.
Fig. 1 is the structural representation of the utility model embodiment sectional type low temperature ferromagnetic resonance measuring system.Such as Fig. 1 institutes
Showing, the sectional type low temperature ferromagnetic resonance measuring system, the sample for being opposite in sample cavity is excited and signal measurement,
Including at least the first half flexible wires articulamentums 200 of steel wire articulamentum 100 and first being sequentially connected.Applied to signal measurement mistake
Cheng Zhong, flexible wires articulamentum 200 are the articulamentum near room temperature environment, and half steel wire articulamentum 100 is the company near sample
Connect layer.The first half flexible wires articulamentums 200 of steel wire articulamentum 100 and first can be directly attached, or centre is sequentially connected
Half steel wire articulamentum of more than one number and/or the flexible wires articulamentum of more than one number.It is used in measurement to connect
Connect layer and comprise at least one and half steel wire articulamentums and a flexible wires articulamentum.
First semi-steel signal wire joint 140 of the first half steel wire articulamentums 100 passes through signal wire 300 and connects sample；The
Second flexible signal wire terminal 220 of one flexible wires articulamentum 200 is close to sample cavity openend, finally, the connection of the first flexible wires
The signal processing and analysis equipment of the second flexible signal wire terminal 220 connection ferromagnetic resonance measuring system of layer 200 and/or signal production
Generating apparatus.
Wherein, the signal processing and analysis equipment is mutually put including oscillograph, spectrum analyzer, vector network analyzer, lock
One or more in big device, power detector and microwave signal source.
Fig. 2 is that the structure of half steel wire articulamentum of the utility model embodiment sectional type low temperature ferromagnetic resonance measuring system is shown
It is intended to.As shown in Fig. 2 half just by taking the first half steel wire articulamentums 100 as an example, the first half steel wire articulamentums 100 include line articulamentum
Heat screen 110, at least one first semi-rigid signal wire joint 140, at least one second semi-rigid signal wire joint 120 and extremely
A few semi-rigid signal wire 130；First semi-rigid signal wire joint 140 is firm by the connection the second half of semi-rigid signal wire 130
Property signal wire joint 120, the first semi-rigid signal wire joint 140 are arranged on heat screen 110.
In the present embodiment, half firm line articulamentum is additionally provided with least one wire terminal 160, to connect other measurement circuitries
Signal wire or equipment.Wire terminal 160 can be inelastic signals wire terminal or flexible signal wire terminal.
Specifically, be integrated with the first semi-rigid signal wire joint 140 and/or wire terminal 160 it is heat sink, it is heat sink be used for will letter
The heat of number line transmission deposits.
The first hollow out 150 is provided among the heat screen 110 of the first half firm line articulamentums 100, the first hollow out 150 is used for sample
Product bar passes through and supports fixed sample.The first half firm line articulamentums 100 are additionally provided with the second hollow out 170, for for other wire rods,
Equipment or light pass through.
Fig. 3 is that the structure of the flexible wires articulamentum of the utility model embodiment sectional type low temperature ferromagnetic resonance measuring system is shown
It is intended to.As shown in figure 3, flexible wires articulamentum is by taking the first flexible wires articulamentum 200 as an example.First flexible wires articulamentum 200 includes
Heat screen 210, at least one first flexible signal wire terminal 240, at least one second flexible signal wire terminal 220 and at least one
Individual flexible signal line 230；First flexible signal wire terminal 240 connects the second flexible signal wire terminal by flexible signal line 230
220, the first flexible signal wire terminal 240 is arranged at 210 on heat screen.
In the present embodiment, flexible wires articulamentum is additionally provided with least one wire terminal 260, to connect other measurement circuitries
Signal wire or equipment.Wire terminal 260 can be inelastic signals wire terminal or flexible signal wire terminal.
Specifically, be integrated with the first flexible signal wire terminal 240 and/or wire terminal 260 it is heat sink, it is heat sink to be used for signal
The heat of line transmission deposits.
The first hollow out 250 is provided among the heat screen 210 of first flexible wires articulamentum 200, the first hollow out 250 is used for sample
Product bar passes through and supports fixed sample.First flexible wires articulamentum 200 is additionally provided with the second hollow out 270, for for other wire rods,
Equipment or light pass through.
Half just may be provided with multiple hollow outs to connect on the heat screen of line articulamentum and flexible wires articulamentum.
The heat screen 110 of half firm line articulamentum and the heat screen 210 of flexible wires articulamentum are used for deposits heat and isolation
Heat；Half just the flexible signal line connector of the semi-rigid signal wire joint of line articulamentum and flexible wires articulamentum be used for and phase
The signal wire connector of adjacent articulamentum phase is connected to complete to electrically connect；Semi-rigid signal wire 130 and flexible signal line 230 are used for
Transmission signal.
As shown in figure 1, signal wire 300 and semi-rigid signal wire 130 be respectively arranged at the first half steel wire articulamentums 100 every
The both sides of heat shielding 110.
Specifically, the first semi-rigid signal wire joint 140, the first flexible signal wire terminal 240, wire terminal 160 and/or line
Be integrated with joint 260 it is heat sink, it is heat sink be used for the heat of signal wire transmission is deposited.
In a kind of embodiment, the second semi-rigid connection first of signal wire connector 120 of the first half steel wire articulamentums 100 is soft
First flexible signal wire terminal 240 of property line articulamentum 200, so that semi-rigid signal wire 130 is electrically connected with flexible signal line 230
Connect conducting.
In another embodiment, it is sequentially connected between the first half flexible wires articulamentums 200 of steel wire articulamentum 100 and first
Few one and half steel wire articulamentums and/or at least one flexible wires articulamentum, and at least one half steel wire articulamentum and/or at least one
The order of connection of individual flexible wires articulamentum does not limit.
Fig. 4 is the application schematic diagram of the utility model embodiment sectional type low temperature ferromagnetic resonance measuring system.Signal measurement
System includes being sequentially connected the first half steel wire articulamentum 100, half steel wire articulamentum and the first flexible wires articulamentums 200 connect, or
Person is the first half steel wire articulamentum 100, flexible wires articulamentum and the first flexible wires articulamentums 200 being once connected.The first half
Steel wire articulamentum 100 connects sample 400 by signal wire 300 and carries out microwave-excitation and signal detection, the first flexible wires articulamentum
200 thermal insulation board 11 close to the openend of sample cavity 10 and through openend electrically connects the equipment outside sample cavity 10.Connecting line 300
Connect for being joined directly together with sample 400, there is low-loss, be adapted to the characteristic such as flexible.
Referring to Fig. 4, the present embodiment includes two measurement circuitries, successively by semi-rigid signal wire 130 and flexible signal
Line 230.And being provided with hollow out among the heat screen of each articulamentum in the present embodiment penetrates specimen holder 500, specimen holder
500 support and consolidate sample 400, ensure that the stability in test process.
The utility model preferred embodiment is these are only, is not used to limit to the utility model, it is all of the present utility model
Modifications, equivalent substitutions and improvements for being done etc. within spirit and principle, be required to be included in the scope of protection of the utility model it
It is interior.
Claims (10)
1. sectional type low temperature ferromagnetic resonance measuring system, including sample cavity；Characterized in that, the signal wire in the sample cavity is extremely
It is divided into the first half steel wire articulamentum and the first flexible wires articulamentums less；
The first half steel wire articulamentum includes heat screen, at least one first semi-rigid signal wire joint, at least one second
Semi-rigid signal wire joint and at least one semi-rigid signal wire；The first semi-rigid signal wire joint passes through semi-rigid signal
Line connects the second semi-rigid signal wire joint, and the first semi-rigid signal wire joint is arranged on heat screen；
The first flexible wires articulamentum includes heat screen, at least one first flexible signal wire terminal, at least one second soft
Property signal wire joint and at least one flexible signal line；The first flexible signal wire terminal connects second by flexible signal line
Flexible signal wire terminal, the first flexible signal wire terminal are arranged on heat screen；
First semi-steel signal wire joint of the first half steel wire articulamentum connects sample by signal wire；Described first is flexible
Second flexible signal wire terminal of line articulamentum is close to sample cavity openend, the second flexible letter of the first flexible wires articulamentum
The signal processing and analysis equipment and/or signal generating apparatus of number wire terminal connection ferromagnetic resonance measuring system.
2. sectional type low temperature ferromagnetic resonance measuring system according to claim 1, it is characterised in that the signal wire and half
Inelastic signals line is respectively arranged at the both sides of heat screen.
3. sectional type low temperature ferromagnetic resonance measuring system according to claim 1, it is characterised in that the first half steel wire
Second semi-rigid signal wire connector of articulamentum connects the first flexible signal wire terminal of the first flexible wires articulamentum, has made half just
Property signal wire electrically connects conducting with flexible signal line.
4. sectional type low temperature ferromagnetic resonance measuring system according to claim 1, it is characterised in that the first half steel wire
At least one and half steel wire articulamentums are sequentially connected between articulamentum and the first flexible wires articulamentum and/or at least one flexible wires connect
Connect layer.
5. the sectional type low temperature ferromagnetic resonance measuring system according to claim 1 or 4, it is characterised in that the half firm line
The heat screen of articulamentum and flexible wires articulamentum is provided with least one wire terminal, to connection wire.
6. sectional type low temperature ferromagnetic resonance measuring system according to claim 1, it is characterised in that described first is semi-rigid
Signal wire joint, the first flexible signal wire terminal and/or at least one wire terminal are integrated with heat sink.
7. the sectional type low temperature ferromagnetic resonance measuring system according to claim 1 or 3, it is characterised in that described the first half
The heat screen of firm line articulamentum is provided with the first hollow out, and first hollow out passes through for specimen holder and supports fixed sample.
8. according to any described sectional type low temperature ferromagnetic resonance measuring system in claim 1,3 and 4, it is characterised in that described
The heat screen of half firm line articulamentum and flexible wires articulamentum is provided with least one second hollow out, and second hollow out is used to supply
Wire rod, equipment or light pass through.
9. sectional type low temperature ferromagnetic resonance measuring system according to claim 1, it is characterised in that the signal acquisition point
Desorption device includes oscillograph, spectrum analyzer, vector network analyzer, lock-in amplifier, power detector and microwave signal source
In one or more.
10. a kind of segmented using any one of claim 1-4,6 or 9 the sectional type low temperature ferromagnetic resonance measuring system is low
Warm ferromagnetic resonance measuring instrument.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720344505.9U CN206657098U (en) | 2017-04-01 | 2017-04-01 | Sectional type low temperature ferromagnetic resonance measuring system and its measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720344505.9U CN206657098U (en) | 2017-04-01 | 2017-04-01 | Sectional type low temperature ferromagnetic resonance measuring system and its measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206657098U true CN206657098U (en) | 2017-11-21 |
Family
ID=60317982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720344505.9U Active CN206657098U (en) | 2017-04-01 | 2017-04-01 | Sectional type low temperature ferromagnetic resonance measuring system and its measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206657098U (en) |
-
2017
- 2017-04-01 CN CN201720344505.9U patent/CN206657098U/en active Active
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