CN107063345B - A many samples rotary rod for synthesizing among rerum natura measurement system PPMS - Google Patents
A many samples rotary rod for synthesizing among rerum natura measurement system PPMS Download PDFInfo
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- CN107063345B CN107063345B CN201710205453.1A CN201710205453A CN107063345B CN 107063345 B CN107063345 B CN 107063345B CN 201710205453 A CN201710205453 A CN 201710205453A CN 107063345 B CN107063345 B CN 107063345B
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- 238000005259 measurement Methods 0.000 title claims abstract description 15
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- 230000005540 biological transmission Effects 0.000 claims description 9
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 abstract description 2
- 230000005291 magnetic effect Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 4
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 238000002474 experimental method Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a multi-sample rotating rod used in a PPMS (comprehensive physical property measurement system). It contains three sample holders, and can load and measure three pieces of sample simultaneously. The two sample holders are fixed together back to back, connected with the gear and can rotate 360 degrees in a vertical plane; the other sample holder is fixed at the bottom and can not rotate. The sample support at the bottom is matched with an internal interface of the PPMS cavity and is connected with a lead inside the cavity, and the electrodes of the two back-to-back sample supports at the upper part are led out from the upper part of the sample rod through a plurality of Raymond plugs with O-ring seal through the lead. Compared with the prior art, the invention has the beneficial effects that: the method is perfectly compatible with a PPMS system; three samples can be loaded and measured simultaneously, the testing capability of the PPMS is greatly expanded, and the efficiency of the PPMS is improved to three times of that of the original sample rod.
Description
Technical Field
The invention relates to the technical field of precision measuring instruments, in particular to a system for measuring comprehensive physical properties
Multiple samples in PPMS rotate the rods.
Background
The comprehensive Physical Property Measurement System (PPMS) is an instrument developed by Quantum Design in the united states for fundamental research on physical properties of materials. The design concept of the PPMS system is to integrate various full-automatic physical property measurement means such as magnetics, electrics, thermals and appearances, even ferroelectrics, dielectrics and the like on a perfectly controlled extremely-low-temperature and high-intensity magnetic field platform. The design makes full use of the low-temperature and high-intensity magnetic field environment of the whole system, greatly reduces the cost of purchasing instruments by customers, avoids the complexity and errors of setting up experiments by users, and can quickly realize the research idea of researchers.
A PPMS system is composed of a basic system and various measurement and expansion function selection pieces: the basic system provides a low-temperature and strong-magnetic-field environment and a software and hardware control center of the whole system; a user selects various measurement options and expansion function options which are interesting to the user on the basis of a basic system platform. Many users even achieve more personalized measurements by externally connecting electricity meters and incorporating self-written measurement programs (e.g., LabVIEW-based programming).
Due to the control of low temperature and strong magnetic fields by PPMS, and its strong expandability, its demand is increasing in various colleges and research institutes. Many college and research institute PPMS machines are very stressful due to the long time (usually several hours, many or even days) required for varying temperature and magnetic field.
Disclosure of Invention
To overcome the above-mentioned deficiencies of the prior art, the present invention provides a multi-sample rotating rod for use in PPMS that can improve the measurement efficiency. The multi-sample rotating rod can load and measure three samples simultaneously, so that the efficiency is improved to three times of that of the original sample rod.
The technical scheme of the invention is specifically introduced as follows.
The invention provides a multi-sample rotating rod used in a PPMS (comprehensive physical property measurement system), which comprises a sample chamber and a supporting rod body connected with the sample chamber, wherein the sample chamber is of a cuboid structure; wherein: a transmission gear and a straight bevel gear are respectively arranged along the adjacent long and short sides in the sample chamber; the middle position of the sample chamber is back to tightly provided with a first sample support and a second sample support, the first sample support and the second sample support are connected with a transmission gear, so that the first sample support and the second sample support can rotate within 360 degrees in a vertical plane, the bottom of the position opposite to the short edge provided with the straight bevel gear is provided with an L-shaped support, and the vertical edge of the L-shaped support is fixedly provided with a third sample support.
In the invention, a torsion spring is arranged between the transverse edge of the L-shaped bracket and the transmission gear.
In the invention, electrode leads of a first sample support and a second sample support which are back to and tightly connected are led out from a Ramoph plug, and the Ramoph plug is arranged above a sample chamber; the third sample holds in the palm and cooperates with the inside interface of PPMS cavity, and the electrode wire links to each other with the inside wire of PPMS cavity.
In the invention, a plurality of transmission gears are arranged between the first sample support and the second sample support which are back-to-back tightly connected and the elastic torsion spring.
Compared with the prior art, the invention has the beneficial effects that: the method is perfectly compatible with a PPMS system; the structure can load and measure three samples at the same time, and the efficiency is improved to three times of that of the original sample rod; in addition, the measuring program which is compiled in a personalized way and an external ammeter are matched, so that powerful diversified measurement can be realized, and the test result is accurate.
Drawings
FIG. 1 is a schematic view of the bottom structure of a sample rod.
Fig. 2 is a schematic view of the top structure of the sample rod.
Fig. 3 is a general view of the sample rod.
Reference numbers in the figures: 1-straight bevel gear, 2-transmission gear, 3-rotary sample holder, 4-third sample holder, 5-L-shaped support, 6-torsion spring, 7-sample rod base, 8-sample rod-motor connecting disc, 9-dial, 10-Raymond plug (female), 11-Raymond plug (male), 12-O ring, 13-sample rod top, 14-connecting rod, 15-heat-resisting ring and 16-sample rod bottom.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic view of the bottom structure of a sample rod. Fig. 2 is a schematic view of the top structure of the sample rod. Fig. 3 is a general view of the sample rod.
The invention provides a multi-sample rotating rod for use in PPMS. Three sample holders are included, and three pieces of samples can be loaded and measured simultaneously. So that the measurement efficiency of PPMS can be improved by three times. Wherein the straight bevel gear 1 is used for transmitting rotation in the horizontal direction to the vertical direction. The first sample support and the second sample support are fixed together back to back and connected with the transmission gear 2, and can rotate 360 degrees in a vertical plane to form a rotary sample support 3 so as to measure the properties of the sample under magnetic fields with different angles; the copper plate in the middle of the rotary sample support 3 can ensure the temperature consistency and stability of the two sample supports at low temperature, and the lead is led out from the middle of the two sample supports. Because the conducting wire is independent with the whole system cavity, the noise generated by factors such as cavity vibration and the like can be reduced, in addition, the shielding effect can be improved by selecting special conducting wires, and the voltage range is enlarged. The other third sample holder 4 is fixed at the bottom through an L-shaped support 5 and can not rotate, and a torsion spring 6 is fixed below the L-shaped support and always applies torque to the transmission gear 2 in the same direction to eliminate return difference of the gear. The first sample holder and the second sample holder which are back to the tight connection are driven by a plurality of smaller gears with the torsion spring 6, so that the distance between the middle and the bottom third sample holder 4 is proper. The sample rod base 7 is matched with an interface inside the PPMS cavity and is connected with a lead inside the cavity, and electrodes of the first sample support and the second sample support on the sample rod base are led out through a plurality of sealed Raymond plugs 10 and 11 with O rings 12 from the upper part (side surface) of the sample rod through the lead. The connecting rod 14 is a hollow straight rod, and a shaft is arranged inside the connecting rod and used for connecting the rotating parts at the top and the bottom. The top of the connecting rod 14 is outwards provided with a dial 9 and a sample rod-motor connecting disc 8 in sequence, and a plurality of heat-resistant rings 15 are arranged between the bottom 16 of the sample rod and the top 13 of the sample rod to reduce heat convection in the cavity and enable the sample position to be cooled more easily. In addition, strong diversified measurement can be realized by matching with a personalized compiled measuring program and an external ammeter.
The present invention and its embodiments have been described above schematically, without limitation, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching, without departing from the spirit of the invention, the person skilled in the art shall not inventively design the similar structural modes and embodiments to the technical solution, but shall fall within the scope of the invention.
Claims (4)
1. A multi-sample rotating rod used in a PPMS (comprehensive physical property measurement system) comprises a sample chamber and a supporting rod body connected with the sample chamber, wherein the sample chamber is of a cuboid structure; it is characterized in that a transmission gear and a straight bevel gear are respectively arranged along the connection of the adjacent long and short sides in the sample chamber; the middle position of the sample chamber is back to tightly provided with a first sample support and a second sample support, the first sample support and the second sample support are connected with a transmission gear, so that the first sample support and the second sample support can rotate within 360 degrees in a vertical plane, the bottom of the position opposite to the short edge provided with the straight bevel gear is provided with an L-shaped support, and the vertical edge of the L-shaped support is fixedly provided with a third sample support.
2. The multi-sample rotary wand of claim 1, wherein a torsion spring is disposed between the lateral edge of the L-shaped bracket and the drive gear.
3. The multi-sample rotary rod according to claim 1, wherein the electrode leads facing away from the tightly connected first and second sample holders lead from a ramomplug disposed above the sample chamber; the third sample holds in the palm and cooperates with the inside interface of PPMS cavity, and the electrode wire links to each other with the inside wire of PPMS cavity.
4. The multi-sample rotating rod according to claim 2, wherein a plurality of smaller transmission gears are arranged between the first sample holder and the second sample holder which are back to the tight connection and the torsion spring to ensure that the first sample holder and the second sample holder have enough rotating space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205453.1A CN107063345B (en) | 2017-03-31 | 2017-03-31 | A many samples rotary rod for synthesizing among rerum natura measurement system PPMS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710205453.1A CN107063345B (en) | 2017-03-31 | 2017-03-31 | A many samples rotary rod for synthesizing among rerum natura measurement system PPMS |
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| Publication Number | Publication Date |
|---|---|
| CN107063345A CN107063345A (en) | 2017-08-18 |
| CN107063345B true CN107063345B (en) | 2020-02-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710205453.1A Expired - Fee Related CN107063345B (en) | 2017-03-31 | 2017-03-31 | A many samples rotary rod for synthesizing among rerum natura measurement system PPMS |
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| CN (1) | CN107063345B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112858582B (en) * | 2020-12-31 | 2022-08-26 | 中国科学院合肥物质科学研究院 | Electrical measurement sample rod for piston type pressure bag |
| CN113391248A (en) * | 2021-06-08 | 2021-09-14 | 南京光启仪器设备有限公司 | Sample rotating rod for measuring magnetoelectric physical property of liquid helium-free superconducting cryogenic system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002181639A (en) * | 2000-12-12 | 2002-06-26 | Nissan Motor Co Ltd | Device and method for measuring stress or temperature of rotation body |
| CN102012416A (en) * | 2010-09-21 | 2011-04-13 | 上海大学 | Method and system for measuring strain characteristic of material under extreme condition |
| CN104316772A (en) * | 2014-10-20 | 2015-01-28 | 曲靖师范学院 | Capacitance measurement device for extreme object condition |
| CN204515049U (en) * | 2015-03-05 | 2015-07-29 | 中国科学院物理研究所 | Probe-type fast transport measuring system |
| CN104897927A (en) * | 2015-06-04 | 2015-09-09 | 中国科学院物理研究所 | Measuring rod including sample stage capable of rotating at multiple degrees of freedom |
| CN106290997A (en) * | 2016-07-28 | 2017-01-04 | 中国科学院物理研究所 | High frequency measurement bar |
-
2017
- 2017-03-31 CN CN201710205453.1A patent/CN107063345B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002181639A (en) * | 2000-12-12 | 2002-06-26 | Nissan Motor Co Ltd | Device and method for measuring stress or temperature of rotation body |
| CN102012416A (en) * | 2010-09-21 | 2011-04-13 | 上海大学 | Method and system for measuring strain characteristic of material under extreme condition |
| CN104316772A (en) * | 2014-10-20 | 2015-01-28 | 曲靖师范学院 | Capacitance measurement device for extreme object condition |
| CN204515049U (en) * | 2015-03-05 | 2015-07-29 | 中国科学院物理研究所 | Probe-type fast transport measuring system |
| CN104897927A (en) * | 2015-06-04 | 2015-09-09 | 中国科学院物理研究所 | Measuring rod including sample stage capable of rotating at multiple degrees of freedom |
| CN106290997A (en) * | 2016-07-28 | 2017-01-04 | 中国科学院物理研究所 | High frequency measurement bar |
Non-Patent Citations (2)
| Title |
|---|
| 物理性质测量系统(PPMS)的原理及其应用;张焱等;《现代仪器》;20040930(第5期);第44-47页 * |
| 物理性质测量系统的使用现状及解决办法;王琴等;《实验技术与管理》;20170117(第1期);第254-256页以及272页 * |
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| CN107063345A (en) | 2017-08-18 |
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Granted publication date: 20200218 |