CN101441227B - Self-adapting contact probe set of multiple-set measurement - Google Patents
Self-adapting contact probe set of multiple-set measurement Download PDFInfo
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- CN101441227B CN101441227B CN2008102247944A CN200810224794A CN101441227B CN 101441227 B CN101441227 B CN 101441227B CN 2008102247944 A CN2008102247944 A CN 2008102247944A CN 200810224794 A CN200810224794 A CN 200810224794A CN 101441227 B CN101441227 B CN 101441227B
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- probe
- self
- spring
- pedestal
- shoulder hole
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- 239000000523 sample Substances 0.000 title claims abstract description 152
- 238000005259 measurement Methods 0.000 title abstract description 16
- 230000000712 assembly Effects 0.000 claims abstract description 7
- 238000000429 assembly Methods 0.000 claims abstract description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 21
- 230000000694 effects Effects 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 4
- 238000009826 distribution Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 238000012545 processing Methods 0.000 abstract description 4
- 238000001514 detection method Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- 239000004411 aluminium Substances 0.000 description 4
- 239000003610 charcoal Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004166 bioassay Methods 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Measurement Of Resistance Or Impedance (AREA)
Abstract
The invention relates to a self-adapting contact probe set, which is characterized in that four probe assemblies with the surrounding centers distributed in 90 degrees are included, wherein each of the probe assemblies comprises probe components and a moving device, and the probe components are arranged on the moving device which can move forward to the center or reset under dynamic function. Each of the probe components comprises a base body, a spring and a probe; wherein the base body is provide with two shoulder holes, and each shoulder hole is internally provided with a probe and a spring. Under the function of the spring, one end of the probe extends out of the shoulder hole. The self-adapting contact probe set can not only finish sample measurement at one time and make sure that the contact force of each set of probe meets standard requirements, but also avoid the change of the equipotential surface of the sample in the rotating detection process. In addition, the self-adapting contact probe set is characterized by convenient use, high measurement accuracy, good data reproduction quality, low requirement of sample processing accuracy, etc.
Description
Technical field
The present invention relates to heterogeneous material resistance, determination of resistivity device, specifically is the self-adapting contact probe group that a kind of many groups are measured.
Background technology
At present in the device of measuring heterogeneous material resistivity, obtain the voltage drop between two probes with the surface that the pair of conductive probe removes to contact sample, the domestic existing technology that is implemented in of this function is with manually finishing.Because the singularity of carbon material generally need be surveyed 3-4 time equably along the cylinder of right cylinder sample, every mensuration once needs sample revolved and turn 90 degrees or 120 spend and survey next point again; So just need loosening conductive fixture, clamp again behind the rotation sample; Because each armoring situation difference causes probe and specimen surface contact pressure to change and causes measuring error, and accuracy of measurement is reduced, reappearance is relatively poor.
The aluminium that automechanism has only the plain research institute of Switzerland's charcoal to produce the at present plain determination of resistivity instrument of charcoal, the probe groups that this instrument has a mechanism to drive, can only carry out one-shot measurement at every turn, and coloured industry standard YS63.2-2006 of China's in June, 2008 promulgation requires to carry out four measurements at circumferencial direction, therefore average as the resistivity value of sample, need the repeatable operation of mechanism just can finish the measurement of a sample; And the measurement point of this device is fixed, if there is defective in specimen surface, it is bigger to cause pit, sample to add the man-hour straightness error as the process particle detachment, big even another the discontiguous situation of contact of two probe contact force difference will appear, at this time need the experimenter to adjust sample repeatedly, probe is on the suitable measuring position, operates more loaded down with trivial detailsly, measure to be difficult for accurately.
Aluminium has coloured industry standard YS63.2-2006 of international standard ISO11713-2000 and China's in June, 2008 promulgation with the plain resistivity of prebaked anode bioassay standard of charcoal.
Prior art structure measurement synoptic diagram is seen Fig. 1, after electric current is connected sample 7 both ends of the surface by current-carrying plate 8, and the cylinder of two probes, 9 contact samples 7.Because the contact force of probe is transmitted by insulcrete 10, and probe is rigid connections with insulcrete 10, therefore when specimen surface has pit and be in some probe contact positions, the big even contact of two probe contact force difference will occur and another state of contact not, this situation is the same for the handheld probe group with the automatic prober group.Another kind of situation is, when sample machined surface linearity during greater than two probe end face linearitys, the inconsistent even contact of two probe contact forces also can occur and another state of contact not, causes measuring result error bigger.Therefore, prior art requires the corresponding strictness of processing of sample, and the smooth finish of its cylinder will reach 50, and linearity will reach 0.05mm.
Summary of the invention
The purpose of this invention is to provide the self-adapting contact probe group that a kind of many groups are measured, to solve the problem of the big and sample processing request strictness of the above-mentioned measuring error that exists.The objective of the invention is to finish by following technical scheme.
The present invention is the self-adapting contact probe group that a kind of many groups are measured, it is characterized in that: comprise 4 groups of probe assemblies that become 90 degree distributions around the center, each probe assembly comprises probe assembly and mobile device, probe assembly is contained on the mobile device, and mobile device can advance and resets under dynamic action to the center.
Each described probe assembly comprises pedestal, spring and probe, has two shoulder holes on pedestal, and a probe and spring respectively are housed in each shoulder hole, and under the effect of spring, an end of probe stretches out in outside the shoulder hole.
Probe has bar portion, boss and end of probe, portion is with spring at bar, and spring one end is pressed on the probe baffle plate that is loaded on shoulder hole one end, and the other end is pressed on the boss of probe, boss 522 is pressed on the rib of shoulder hole of pedestal, end of probe is stretched out in outside the shoulder hole.
Cooperate with the respective aperture of pedestal 51 as the guiding position with the boss of described probe or the cylindrical of end of probe.
Described mobile device is a cylinder.
Also comprise the piston rod dirt-proof boot, an end of piston rod dirt-proof boot is fixed on the end face of cylinder, and the other end is fixed on the pedestal.
Described pedestal is made by insulating material.
Self-adapting contact probe group of the present invention adopts four groups of mechanisms to drive four groups of self-adaptation probe assemblies and measures individually or simultaneously, can once finish sample measurement and guarantee that the contact force of every group of probe reaches standard-required, avoid the change of equipotential surface in the sample in the rotation mensuration process, had characteristics such as easy to use, that measuring accuracy is high, data reappearance is good.
The invention solves probe groups repeatable operation that the hand-held probe groups causes in the resistivity measurement process measuring error, automechanism drive and to the problems such as excessive demand of sample machining precision.Four groups of measuring mechanisms are 90 ° at circumferencial direction and evenly distribute, under the control of automatic control control system, can contact specimen surface simultaneously, the pilot hole of probe base has guaranteed the unanimity of two probe distances in every group of probe groups, elastic mechanism in the self-adaptation probe groups can be regulated probe location, make probe and surface of contact keep certain contact force, eliminated the error that human factor causes, reduced accuracy requirement simultaneously sample preparation.For the aluminium of ￠ 50x130mm with the plain sample of charcoal, with handheld probe plate or single automatic prober plate, require the sample linearity more than the 0.05mm, surface smoothness is more than 50, need carry out accurate machine work.After adopting probe groups of the present invention, the machining precision of same sample is that linearity is no more than 0.5mm, surface smoothness 125, just can satisfy the requirement of instrument repeatability, and common laboratory all can sample preparation.
In sum, the present invention can once finish sample measurement and guarantee that the contact force of every group of probe reaches standard-required, avoid the change of equipotential surface in the sample in the rotation mensuration process, had characteristics such as easy to use, that measuring accuracy is high, data reappearance good, and the sample requirement on machining accuracy is low.
Description of drawings
Synoptic diagram when Fig. 1 is the prior art measurement.
Fig. 2 is a probe groups of the present invention schematic top plan view when measuring.
Fig. 3 is the A-A profile (bottom surface forwards horizontal level counterclockwise to) among Fig. 2.
Code name among the figure
1 cylinder block, 2 cylinders, 3 piston rod dirt-proof boots, 4 working cavities
5 probe assemblies, 51 probe pedestals, 52 probes, 521 bar portions, 522 boss, 523 end of probe
53 baffle plates, 54 springs
6,7 samples, 8 current-carrying plates, 9 probes, 10 insulcretes
Embodiment
Being the synoptic diagram of probe groups of the present invention shown in Fig. 2,3, is that example is illustrated the present invention with aluminium with carbon product determination of resistivity device.Sample to be tested is diameter 50mm, the right cylinder of length 130mm.
The self-adapting contact probe group that the present invention organizes measurement more comprises four groups of probe assemblies that become 90 degree distributions around the center, each probe assembly comprises probe assembly 5 and mobile device, mobile device in the present embodiment adopts cylinder 2, probe assembly 5 is contained on the cylinder 2, and cylinder 2 can advance and resets under dynamic action to the center.
Also comprise piston rod dirt-proof boot 3, an end of piston rod dirt-proof boot 3 is fixed on the end face of cylinder 2, and the other end is fixed on the pedestal 51.Described pedestal 51 is made by insulating material.
Each described probe assembly 5 comprises pedestal 51, spring 54 and probe 52, has two shoulder holes on pedestal, and a probe 52 and spring 54 respectively are housed in each shoulder hole, and under the effect of spring 54, an end of probe stretches out in outside the shoulder hole.The structure of present embodiment is, probe 52 has bar portion 521, boss 522 and end of probe 523, be with spring 54 in bar portion, spring one end is pressed on the probe baffle plate 53 that is loaded on shoulder hole one end, the other end is pressed on the boss 522 of probe, boss 522 is pressed on the rib of shoulder hole of pedestal 51, end of probe 523 is stretched out in outside the shoulder hole.Described pedestal 51 is made by insulating material.
The boss 522 of available probe 52 or the cylindrical of end of probe 523 cooperate with the respective aperture of pedestal 51 as the guiding position.Present embodiment adopts the cylindrical of boss 522 as the guiding position, and with in the present hole of spring 54 precompressed, precompression is greater than 50N, and the snap-off-distance of probe is about 5mm.When probe contact specimen surface, under the effect of spring force, probe is regulated overhang automatically, guaranteed each probe all with the contacting of the sample face of cylinder, contact force is at 50 ~ 80N; Because the structure of probe front is very sharp-pointed, the variation of 50 ~ 80N contact force is to not influence of contact resistance.The insulated probe seat of particular design, the processing of two probe aperture has reduced the operation of measuring probe distance apart from having guaranteed that every group of probe distance equates, provides convenience for calculating automatically.Because the existence of cylinder pressure, the piston rod outreach is adjusted automatically with the probe base position, has guaranteed the good contact condition of four groups of probes and sample.
The course of work, sample to be tested 6 be placed in the working cavity 4 of central authorities in place after, after last current-carrying plate compresses sample, start probe and stretch out button, four groups of probes 52 stretch out simultaneously, the face of cylinder of contact sample 6.The cylinder 2 that adopts is the twin shaft cylinder, has guaranteed that four groups of probes are on the identical xsect.Automatic measurement system is measured the voltage drop of every group of probe and is averaged, and obtains the resistivity value of sample.Four point measurements are once finished, and have guaranteed the consistance of conduction status, have guaranteed the Repeatability and Reproducibility of measuring system.
Claims (6)
1. organize the self-adapting contact probe group of measuring one kind more, it is characterized in that: comprise four groups of probe assemblies that become 90 degree distributions around the center, each probe assembly comprises probe assembly (5) and mobile device, probe assembly is contained on the mobile device, and mobile device can advance and resets under dynamic action to the center;
Each described probe assembly (5) comprises pedestal (51), spring (54) and probe (52), has two shoulder holes on pedestal, and a probe and spring respectively are housed in each shoulder hole, and under the effect of spring, an end of probe stretches out in outside the shoulder hole.
2. the self-adapting contact probe group that many groups according to claim 1 are measured is characterized in that; Probe (52) has bar portion (521), boss (522) and end of probe (523), be with spring (54) in bar portion, spring one end is pressed on the probe baffle plate (53) that is loaded on shoulder hole one end, the other end is pressed on the boss of probe, boss is pressed on the rib of shoulder hole of pedestal, end of probe is stretched out in outside the shoulder hole.
3. the self-adapting contact probe group that many groups according to claim 2 are measured is characterized in that: cooperate with the respective aperture of pedestal (51) as the guiding position with the boss (522) of described probe (52) or the cylindrical of end of probe (523).
4. the self-adapting contact probe group that many groups according to claim 1 are measured, it is characterized in that: described mobile device is cylinder (2).
5. the self-adapting contact probe group that many groups according to claim 3 are measured, it is characterized in that: also comprise piston rod dirt-proof boot (3), an end of piston rod dirt-proof boot is fixed on the end face of cylinder (2), and the other end is fixed on the pedestal (51).
6. the self-adapting contact probe group that many groups according to claim 1 are measured, it is characterized in that: described pedestal (51) is made by insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102247944A CN101441227B (en) | 2008-12-26 | 2008-12-26 | Self-adapting contact probe set of multiple-set measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102247944A CN101441227B (en) | 2008-12-26 | 2008-12-26 | Self-adapting contact probe set of multiple-set measurement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101441227A CN101441227A (en) | 2009-05-27 |
| CN101441227B true CN101441227B (en) | 2011-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2008102247944A Expired - Fee Related CN101441227B (en) | 2008-12-26 | 2008-12-26 | Self-adapting contact probe set of multiple-set measurement |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8264221B2 (en) * | 2009-07-31 | 2012-09-11 | Olympus Ndt | Eddy current probe assembly adjustable for inspecting test objects of different sizes |
| CN104614591A (en) * | 2015-03-04 | 2015-05-13 | 无锡韩光电器股份有限公司 | Loop resistance tester for automatic change-over switch |
| CN111208774B (en) * | 2020-03-18 | 2021-05-11 | 中冶置业集团有限公司 | Household intelligent control device for green building |
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- 2008-12-26 CN CN2008102247944A patent/CN101441227B/en not_active Expired - Fee Related
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| CN101441227A (en) | 2009-05-27 |
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Granted publication date: 20110727 |