CN204439586U - A kind of low-field nuclear magnetic resonance magnet fast constant temperature device - Google Patents
A kind of low-field nuclear magnetic resonance magnet fast constant temperature device Download PDFInfo
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- CN204439586U CN204439586U CN201520186223.1U CN201520186223U CN204439586U CN 204439586 U CN204439586 U CN 204439586U CN 201520186223 U CN201520186223 U CN 201520186223U CN 204439586 U CN204439586 U CN 204439586U
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- constant temperature
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Abstract
The utility model discloses a kind of low-field nuclear magnetic resonance magnet fast constant temperature device, comprise constant temperature enclosure (9), the permanent magnet (10) for excitation is provided with in constant temperature enclosure (9), inductive coil (11) is provided with between permanent magnet (10), coupon (3) is provided with in the middle of inductive coil (11), it is characterized in that: described constant temperature enclosure (9) is also provided with fast constant temperature device, the magnet that the utility model not only efficiently solves existing magnetic resonance detection instrument is comparatively responsive to temperature variation, if can not provide stable magnetic field, magnetic resonance detection method just can not obtain higher accuracy rate, and it is high to constant temperature enclosure construction requirements to solve existing magnetic resonance detection instrument, be unfavorable for the widespread use of this technology.
Description
Technical field
The utility model relates to low-field nuclear magnetic resonance technical field, is specifically related to a kind of low-field nuclear magnetic resonance magnet fast constant temperature device.
Background technology
Along with the progress of society and the great development of industrial technology, vegetable fat is as the industrial raw materials also becoming multiple industry while consumer goods, its demand increases especially with surprising rapidity year by year, and plantation and the process scale of corresponding oil crops also constantly expand.The oleaginousness of oil crops is higher, and its economic worth is also higher.Detect oil content in oil crops be oil crops seed selection, production, processing requisite with in sale together with link.In recent years, how according to market demand design one, oil crops oil-containing water content detecting instrument device or method have become a study hotspot fast, accurately and efficiently.
The method of traditional measurement oil crops oleaginousness is that extractive distillation method is also referred to as soxhlet extraction methods, this method needs with an organic solvent and supercritical fluid, its drawback is: process complexity (preparation of inspection product, dissolve, detect), length consuming time (being several hours), need to use consumables (as various solvent), the various reagent that use all can work the mischief to human body and environment, and maximum shortcoming is that oil content can not 100% be extracted thus testing result and can not have very high accuracy.
In order to improve detection efficiency and the precision of oil crops oil-containing water cut, the magnetic resonance detection method can resolving object atomic nucleus position and kind is just arisen at the historic moment.Magnetic resonance detection method makes contained liquid hydrogen atom in sample produce nmr phenomena by the electromagnetic wave that additional gradient magnetic is launched, and namely analyzes the image of proton resonance, realizes the oil-containing moisture determination to oil plant.Its accuracy of magnetic resonance detection Fa Gengyin is high, easy and simple to handle, measurement is quick, in widespread attention at oil crops oil-containing water cut detection field to sample not damaged.
The magnet that the externally-applied magnetic field of magnetic resonance detection method is generally processed into by permanent magnet realizes, and magnet (being furnished with coil) is the important component part of magnetic resonance detection technology.But, because magnet is comparatively responsive to temperature variation, can not provide stable magnetic field then magnetic resonance detection method just can not obtain higher accuracy rate.Thus be extremely necessary accurately to control the environment temperature residing for magnet.The method of current great majority to nuclear magnetic resonance equipment magnet environmental Kuznets Curves is that magnetic resonance detection instrument is placed in constant temperature enclosure, but constant temperature enclosure construction requirements condition is higher, is unfavorable for applying of nuclear-magnetism detector.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of low-field nuclear magnetic resonance magnet fast constant temperature device, the magnet that the utility model not only efficiently solves existing magnetic resonance detection instrument is comparatively responsive to temperature variation, if can not provide stable magnetic field, magnetic resonance detection method just can not obtain higher accuracy rate, and it is high to constant temperature enclosure construction requirements to solve existing magnetic resonance detection instrument, is unfavorable for the widespread use of this technology.
The utility model is achieved through the following technical solutions:
A kind of low-field nuclear magnetic resonance magnet fast constant temperature device, comprise constant temperature enclosure (9), the permanent magnet (10) for excitation is provided with in constant temperature enclosure (9), inductive coil (11) is provided with between permanent magnet (10), be provided with coupon (3) in the middle of inductive coil (11), it is characterized in that: described constant temperature enclosure (9) is also provided with fast constant temperature device.
The further Technological improvement plan of the utility model is:
Described fast constant temperature device comprises electric heating body (6), dioxide bottle (1), temperature sensor (4) and central processing unit (7);
Described dioxide bottle (1) is connected with constant temperature enclosure (9) by tracheae through gas outlet (8), tracheae is provided with solenoid valve (2), and solenoid valve (2) is electrically connected with central processing unit (7) by signal data line;
Described electric heating body (6), temperature sensor (4) are all arranged in constant temperature enclosure (9), temperature sensor (4) is electrically connected with central processing unit (7) by signal data line, electric heating body (6) is provided with relay (5), and relay (5) is electrically connected with central processing unit (7) by signal data line.
The further Technological improvement plan of the utility model is:
Described central processing unit (7) adopts model to be the single-chip microcomputer of ATmega169PV, and temperature sensor (4) adopts chip model to be DS18B20.
The utility model compared with prior art, there is following obvious advantage: the thermostat of the utility model low-field nuclear magnetic resonance utilizes carbon dioxide gasification heat absorption principle to have the function of refrigeration rapidly, thus change the good but sluggish present situation of refrigeration of same device heating effect, the utility model volume is little, cost is low, scientific and reasonable for structure, be suitable for large range promotion use.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
As shown in Figure 1, the utility model comprises constant temperature enclosure 9, is provided with the permanent magnet 10 for excitation, is provided with inductive coil 11 between permanent magnet 10 in constant temperature enclosure 9, and be provided with coupon 3 in the middle of inductive coil 11, described constant temperature enclosure 9 is also provided with fast constant temperature device; Described fast constant temperature device comprises electric heating body 6, dioxide bottle 1, temperature sensor 4 and central processing unit 7;
Described dioxide bottle 1 is connected with constant temperature enclosure 9 by tracheae through gas outlet 8, tracheae is provided with solenoid valve 2, and solenoid valve 2 is electrically connected with central processing unit 7 by signal data line;
Described electric heating body 6, temperature sensor 4 are all arranged in constant temperature enclosure 9, and temperature sensor 4 is electrically connected with central processing unit 7 by signal data line, and electric heating body 6 is provided with relay 5, and relay 5 is electrically connected with central processing unit 7 by signal data line;
Described central processing unit (7) adopts model to be the single-chip microcomputer of ATmega169PV, and temperature sensor (4) adopts chip model to be DS18B20.
Composition graphs 1 sketches the course of work of the present utility model:
First temperature in constant temperature enclosure 9 is detected by central processing unit 7 by temperature sensor 4 during use, if when detecting that in constant temperature enclosure 9, temperature is lower than permanent magnet 10 serviceability temperature, the conducting of central processing unit 7 pilot relay 5, and then electric heating body 6 works, then constant temperature 9 indoor temperature rises, if when temperature sensor 4 detects that in constant temperature enclosure 9, temperature is higher than permanent magnet 10 serviceability temperature, central processing unit 7 pilot relay 5 cuts out, solenoid valve 2 conducting, cryogenic carbon dioxide gas then after gasification enters constant temperature enclosure 9, and then constant temperature enclosure 9 temperature reduces.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art and is realized, and the utility model does not relate to the innovation of software simultaneously, and central processing unit 7 adopts routine, existing control program can realize function of the present utility model.
Claims (3)
1. a low-field nuclear magnetic resonance magnet fast constant temperature device, comprise constant temperature enclosure (9), the permanent magnet (10) for excitation is provided with in constant temperature enclosure (9), inductive coil (11) is provided with between permanent magnet (10), be provided with coupon (3) in the middle of inductive coil (11), it is characterized in that: described constant temperature enclosure (9) is also provided with fast constant temperature device.
2. a kind of low-field nuclear magnetic resonance magnet fast constant temperature device according to claim 1, is characterized in that: described fast constant temperature device comprises electric heating body (6), dioxide bottle (1), temperature sensor (4) and central processing unit (7);
Described dioxide bottle (1) is connected with constant temperature enclosure (9) by tracheae through gas outlet (8), tracheae is provided with solenoid valve (2), and solenoid valve (2) is electrically connected with central processing unit (7) by signal data line;
Described electric heating body (6), temperature sensor (4) are all arranged in constant temperature enclosure (9), temperature sensor (4) is electrically connected with central processing unit (7) by signal data line, electric heating body (6) is provided with relay (5), and relay (5) is electrically connected with central processing unit (7) by signal data line.
3. a kind of low-field nuclear magnetic resonance magnet fast constant temperature device according to claim 2, is characterized in that: described central processing unit (7) adopts model to be the single-chip microcomputer of ATmega169PV, and temperature sensor (4) adopts chip model to be DS18B20.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520186223.1U CN204439586U (en) | 2015-03-31 | 2015-03-31 | A kind of low-field nuclear magnetic resonance magnet fast constant temperature device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520186223.1U CN204439586U (en) | 2015-03-31 | 2015-03-31 | A kind of low-field nuclear magnetic resonance magnet fast constant temperature device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204439586U true CN204439586U (en) | 2015-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520186223.1U Expired - Fee Related CN204439586U (en) | 2015-03-31 | 2015-03-31 | A kind of low-field nuclear magnetic resonance magnet fast constant temperature device |
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| CN (1) | CN204439586U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307683A (en) * | 2017-07-28 | 2019-02-05 | 丹东东方测控技术股份有限公司 | A kind of temperature control device for industrial nuclear magnetic resonance permanent magnet systems |
| CN114879774A (en) * | 2022-03-31 | 2022-08-09 | 合肥卓科智能技术有限公司 | Circulation constant temperature system |
-
2015
- 2015-03-31 CN CN201520186223.1U patent/CN204439586U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307683A (en) * | 2017-07-28 | 2019-02-05 | 丹东东方测控技术股份有限公司 | A kind of temperature control device for industrial nuclear magnetic resonance permanent magnet systems |
| CN114879774A (en) * | 2022-03-31 | 2022-08-09 | 合肥卓科智能技术有限公司 | Circulation constant temperature system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150701 Termination date: 20160331 |