CN201655109U - Nuclear magnetic resonance experimental facility with vertically placed and freely replaced sample - Google Patents
Nuclear magnetic resonance experimental facility with vertically placed and freely replaced sample Download PDFInfo
- Publication number
- CN201655109U CN201655109U CN2010200499356U CN201020049935U CN201655109U CN 201655109 U CN201655109 U CN 201655109U CN 2010200499356 U CN2010200499356 U CN 2010200499356U CN 201020049935 U CN201020049935 U CN 201020049935U CN 201655109 U CN201655109 U CN 201655109U
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- test coil
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- slide block
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Abstract
The utility model discloses a nuclear magnetic resonance experimental facility with a vertically placed and freely replaced sample. A base is provided with a magnetic field main body of which the opening is upward. The lower end of a slide block is connected with a round test coil framework in which a hollow test coil is arranged; the bottom of the round test coil framework is sealed so as to support a test sample; and the test sample is vertically inserted into a uniform field region of the magnetic field main body along with the round test coil framework. The slide block is provided with a high-frequency interface, and a test coil is connected to a marginal oscillator of nuclear magnetic resonance equipment through a high-frequency coil. The utility model ensures that a hydrogen nuclear sample and a fluorine nuclear sample are subjected to experiment maintenance under the same magnetic induction strength, eliminates the theoretical error of experiments, basically eliminates the experimental measurement error caused by the shaking of the test coil, is very convenient to replace samples, and ensures that students even can make an experiment by using living beings such as grass straws, branches, and the like, which greatly improves the experimental interest and the experimental practical ability of the students.
Description
Technical field
The utility model belongs to the experiment device for teaching field, the nuclear magnetic resonance experiment device that specifically relates to the vertical placement of a kind of sample and can freely change.
Background technology
In the prior art, nuclear magnetic resonance experiment device in the experiment device for teaching field is the margin oscillator that test coil is rigidly connected to nuclear magnetic resonance analyser by the metallic copper bar mostly, specimen is horizontally placed in the test coil, and test coil places the uniform magnetic field in certain zone again.The device of this structure has following two deficiencies:
When 1, testing, need to change proton sample and fluorine nuclear sample, in order to try to achieve the g factor of fluorine nuclear, requiring two kinds of samples is to experimentize under same magnetic induction density.Because the structural limitations of common nuclear magnetic resonance experiment device, when changing specimen, test coil must be shifted out from magnetic field, put into magnetic field again after finishing changing sample, because the overall dimensions of test coil and margin oscillator is grown (in hundreds of millimeter magnitudes), actual shimming district less (in number millimeter magnitude), be in same test position so can not guarantee test coil and sample, although the nuclear magnetic resonance experiment device that has has station location marker, but be the one dimension scale, can not guarantee that equally test coil and sample are in same test position, thereby can not guarantee to make induced magnetic fields intensity to keep identical, this has caused the theoretical error of experiment.
2, test coil is in magnetic field when mobile, must the bigger margin oscillator of mobile volume, and cause mobile fineness and precision bad thus, and test coil is shaken easily.Because test coil, causes the experimental waveform shake to shaking sensitivity even disappears, experiment stability and consistance variation, this has caused the measuring error of experiment.
Summary of the invention
The utility model mainly is to solve above-mentioned existing in prior technology technical matters, the nuclear magnetic resonance experiment device that the vertical placement of a kind of sample is provided and can have freely changed.
Above-mentioned technical matters of the present utility model is mainly solved by following technical proposals: vertical placement of a kind of sample and the nuclear magnetic resonance experiment device that can freely change, comprise the magnetic field main body that is arranged on the base, the opening of described magnetic field main body up, the upper end of magnetic field main body is provided with slide block, connect circular test coil skeleton below the slide block, the test coil of hollow is set in the circular test coil skeleton, the base seal of circular test coil skeleton is in order to the support specimen, and specimen oblong test coil skeleton vertically inserts in the shimming district of magnetic field main body.The both sides of described magnetic field body port are provided with pole piece respectively, and pole piece is conducted through fixed screw and magnetic field main body, and described slide block slides on pole piece, and keep electrically contacting between the two.The high frequency interface is set on the described slide block, test coil is connected to the margin oscillator of nuclear magnetic resonance analyser through high-frequency line.Observation panel also is set on the described slide block, and the scale mark of observation panel on the main body of magnetic field is convenient to the observation test sample and is in position in the main body of magnetic field.
The benefit of bringing thus is:
When 1, experiment needs to change proton sample and fluorine nuclear sample, need not moving slider, also test coil need not be shifted out from magnetic field, as long as the sample of free state in the test coil is upwards taken out and inserts downwards, can not change sample and the test coil position in magnetic field, thereby guaranteed maintenances that under identical induced magnetic fields intensity, experimentize of proton sample and fluorine nuclear sample, eliminated the theoretical error of testing.
When 2, slide block moves in main body upper surface, magnetic field, because the guiding of parallel pole piece is arranged, so mobile fineness and precision are good, shake can not appear.Eliminated the shake of test coil, the highly stable high conformity of waveform during experiment has been eliminated the experiment measuring error that the shake of test coil brings substantially.
3, the utility model is moved in the shimming district of magnetic field main body by slide block drive specimen, and circular test coil skeleton is uncovered structure, the replacing sample is very convenient, student even can do experiment with living body biologicals such as careless bar, branches has improved student's experimental interests and experiment manipulative ability greatly.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: referring to Fig. 1, the utility model is that magnetic field main body 2 is set on base 1, the opening of magnetic field main body 2 up, the upper end of magnetic field main body 2 is provided with slide block 5, the both sides of magnetic field main body 2 ports are provided with pole piece 4 respectively, and pole piece 4 is conducted through fixed screw 9 and magnetic field main body 2, and slide block 5 can be in smooth sliding on pole piece 4, and keep electrically contacting between the two, disturb with erasure signal.Connect circular test coil skeleton 6 below the slide block 5, the test coil of hollow is set in the circular test coil skeleton 6, the base seal of circular test coil skeleton 6 is in order to the support specimen, and specimen oblong test coil skeleton 6 vertically inserts in the shimming district 3 of magnetic field main body 2.High frequency interface 7 is set on the slide block 5, test coil is connected to the margin oscillator of nuclear magnetic resonance analyser through high-frequency line.Observation panel 8 also is set on the slide block 5, and the scale mark of observation panel 8 on the magnetic field main body 2 is convenient to the observation test sample and is in position in the main body of magnetic field.
During experiment, introduce field sweep voltage through base, " field sweep adjusting knob " that will " field sweep power supply " be adjusted to clockwise near maximum, and the past again half-turn that circles round can strengthen the scope of signal acquisition like this.Again sample is put into detecting coil, the frequency by nuclear magnetic resonance analyser is regulated the margin oscillator shows the NMR signal that captures on oscillograph, want slow when regulating the knob of nuclear magnetic resonance analyser, because resonance range is very little, is easy to skip.After accessing resonance signal, reduce sweep amplitude, regulating frequency is wide to signal, regulates the position of sample in magnetic field simultaneously, can obtain that signal is the strongest, coda wave at most, the longest resonance signal of relaxation time.
At last, should be pointed out that above embodiment only is the more representational example of the utility model.Obviously, the utility model is not limited to the foregoing description, and many distortion can also be arranged.Every foundation technical spirit of the present utility model all should be thought to belong to protection domain of the present utility model to any simple modification, equivalent variations and modification that above embodiment did.
Claims (4)
1. vertical placement of sample and the nuclear magnetic resonance experiment device that can freely change, comprise the magnetic field main body (2) that is arranged on the base (1), the opening that it is characterized in that described magnetic field main body (2) up, the upper end of magnetic field main body (2) is provided with slide block (5), connect circular test coil skeleton (6) below the slide block (5), the test coil of hollow is set in the circular test coil skeleton (6), the base seal of circular test coil skeleton (6) is in order to the support specimen, and specimen oblong test coil skeleton (6) vertically inserts in the shimming district (3) of magnetic field main body (2).
2. vertical placement of sample according to claim 1 and the nuclear magnetic resonance experiment device that can freely change, the both sides that it is characterized in that described magnetic field main body (2) port are provided with pole piece (4) respectively, pole piece (4) is conducted through fixed screw (9) and magnetic field main body (2), described slide block (5) is gone up at pole piece (4) and is slided, and keeps electrically contacting between the two.
3. vertical placement of sample according to claim 1 and 2 and the nuclear magnetic resonance experiment device that can freely change is characterized in that being provided with on the described slide block (5) high frequency interface (7), through high-frequency line test coil are connected to the margin oscillator.
4. vertical placement of sample according to claim 1 and 2 and the nuclear magnetic resonance experiment device that can freely change is characterized in that also being provided with on the described slide block (5) observation panel (8), the scale mark of observation panel (8) on the magnetic field main body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200499356U CN201655109U (en) | 2010-01-18 | 2010-01-18 | Nuclear magnetic resonance experimental facility with vertically placed and freely replaced sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200499356U CN201655109U (en) | 2010-01-18 | 2010-01-18 | Nuclear magnetic resonance experimental facility with vertically placed and freely replaced sample |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201655109U true CN201655109U (en) | 2010-11-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200499356U Expired - Lifetime CN201655109U (en) | 2010-01-18 | 2010-01-18 | Nuclear magnetic resonance experimental facility with vertically placed and freely replaced sample |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201655109U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344763A (en) * | 2018-02-23 | 2018-07-31 | 重庆工程职业技术学院 | A kind of unilateral Nuclear Magnetic Resonance Measurement instrument tutoring system |
| CN108344697A (en) * | 2018-05-14 | 2018-07-31 | 苏州大学 | A kind of special loading shelf combination of the external sample of optoacoustic tomoscan molecular imaging system |
-
2010
- 2010-01-18 CN CN2010200499356U patent/CN201655109U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108344763A (en) * | 2018-02-23 | 2018-07-31 | 重庆工程职业技术学院 | A kind of unilateral Nuclear Magnetic Resonance Measurement instrument tutoring system |
| CN108344763B (en) * | 2018-02-23 | 2024-02-27 | 重庆工程职业技术学院 | Unilateral nuclear magnetic resonance measuring instrument teaching system |
| CN108344697A (en) * | 2018-05-14 | 2018-07-31 | 苏州大学 | A kind of special loading shelf combination of the external sample of optoacoustic tomoscan molecular imaging system |
| CN108344697B (en) * | 2018-05-14 | 2024-02-09 | 苏州大学 | Special sample loading frame combination for in-vitro samples of photoacoustic tomography molecular imaging system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101124 |
|
| CX01 | Expiry of patent term |