CN1945266A - Double shaft force electric coupling loading driving and charge detecting device - Google Patents
Double shaft force electric coupling loading driving and charge detecting device Download PDFInfo
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- CN1945266A CN1945266A CN 200610114089 CN200610114089A CN1945266A CN 1945266 A CN1945266 A CN 1945266A CN 200610114089 CN200610114089 CN 200610114089 CN 200610114089 A CN200610114089 A CN 200610114089A CN 1945266 A CN1945266 A CN 1945266A
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Abstract
The double shaft mechanical and electric coupling and loading drive and measurement device is one ferroelectric and piezoelectric material loading and measuring system. The device includes one double shaft self regulating driving unit with fixed loading shaft and self regulating spherical hinge loading shaft, one sealing unit and one electric charge measuring instrument. The double shaft self regulating driving unit can load in both horizontal direction and vertical direction simultaneously in high synchronism and loading precision; the sealing unit ensures no silicone oil leakage; and the electric charge measuring instrument has high measurement precision and overload protection function. The present invention has the features of small size, easy manufacture and high precision.
Description
Technical field
The present invention relates to a kind of experimental facilities, particularly a kind ofly the piezoelectricity ferro material is applied electricity loads and the power electric coupling loading and the measuring system of bidirectional force loading, belong to construction material, physical property, structural deformation and Experiments of Machanics technical field.
Background technology
For anisotropic material, general unilateral stretching experiment can not reflect the physical and mechanical property of material really, mechanical behavior when needing research material on orthogonal both direction, to be subjected to field of load simultaneously, and for the piezoelectricity ferro intellectual material, need its material behavior when the power electric coupling loads of research, this has important meaning for the application of material and the development of new material.
But present twin shaft testing machine, such as vertical double-shaft four-cylinder electro-hydraulic servo testing machine (application number: 200610012089.9) though can finish the twin shaft mechanical behavior of anisotropic material, but the problem that has precision and security for the power electric coupling performance study of piezoelectricity ferro material, power electric coupling research for the piezoelectricity ferro material also only limits to electricity loading and uniaxial compressive stress loading in addition, Li Changqing (behavior of this structure of ferroelectric material and electricity cause tired experimental study .[Tsing-Hua University master thesis], Beijing: engineering mechanics system of Tsing-Hua University, 1998) the uniaxial loading device of design is to make depression bar keep vertical with test specimen by a guide frame.This method is fairly simple, but because it does not have self-regulating function, so can not guarantee accurately that test specimen is subjected to pure pressure condition, this tests especially the experiment of biaxial stress field in pure compacting and seems especially important.In addition because experiment will be carried out electric load loading, so electric charge is to atmospherical discharges under the high-voltage electric field, experiment will be carried out in silicone oil, but only just can meet the demands in the paper of Li Changqing by an oil groove, and in twin shaft experiment, also need to consider the sealing problem of silicone oil, avoid in loading procedure, too much silicone oil flows out, and effluve occurs.Once more, since when twin shaft loads when test specimen destroys testing machine clash and cause damage, testing machine must adopt displacement control loaded mode, and piezoelectricity ferro material self-deformation under bigger stress loading is still very little, and this makes the precision of displacement control loaded be difficult to guarantee.So need avoid this load mode that material is directly loaded.
The traditional Sawyer-Tower loop of general employing in the charge-measuring system on test specimen surface.Owing to all be by the data collecting card collection for data at present; perhaps the low pressure exact instrument is gathered; but in the experimentation; after in case test specimen is breakdown; can produce instantaneous pressure in the measuring system loop; this will inevitably damage the exact instrument of measuring system, so must design the overvoltage protection measure to guarantee the safety of acquisition instrument in measuring the loop.
Summary of the invention
The purpose of this invention is to provide a kind of twin shaft power electric coupling and load transmission and charge detecting device, utilize twin shaft self-regulation gearing realizable force twin shaft testing machine that ferroelectric ceramics is carried out the electric coupling of twin shaft power and load, the synchronism of the two axial forces of assurance and self-regulation are to neutrality.
Another object of the present invention is to have designed the seal that a cover matches with twin shaft self-regulation gearing, thereby makes and can carry out in silicone oil in the experimentation, avoids effluve and charge loss.
A further object of the present invention is a cover overvoltage protection and a charge error compensating element, in parallel in the charge measurement circuit, is integrated into a charge measurement instrument, realizes the accuracy of charge measurement and the security after monitoring property in real time and the electric field overload.
Technical scheme of the present invention is as follows:
A kind of twin shaft power electric coupling loads transmission and charge detecting device, contain twin shaft power and load gearing and charge detecting device, it is characterized in that: described twin shaft power loads gearing and adopts twin shaft self-regulation transmission shaft, and described twin shaft self-regulation transmission shaft includes a cover fixed conveyor axle and the spherical hinge of cover self-regulation transmission shaft in level and vertical direction; Described fixed conveyor axle comprises the collets that connect successively, fixing trapezoidal pressure head, fixed connecting rod and the fixed transfer bar that is connected with twin shaft load test machine clamp; The spherical hinge of described self-regulation transmission shaft comprises collets, regulates trapezoidal pressure head, regulates steel ball, connects spring, the adjusting adapting rod of regulating connecting link and being connected with twin shaft load test machine clamp; One end of the trapezoidal pressure head of described adjusting cooperates by regulating steel ball with the adjusting connecting link, and by connecting the spring flexible connection, the other end of regulating trapezoidal pressure head is connected with collets, an end of regulating adapting rod flexibly connects with regulating connecting link, and the other end is connected with twin shaft load test machine clamp.
Another technical characterictic of the present invention is: this device also comprises a seal that matches with twin shaft self-regulation transmission shaft, this seal comprises the servo-actuated oil groove that loads oil groove and be arranged on loading oil groove outside, fixed conveyor axle and spherical the hinge between the transmission shaft in described loading oil groove and horizontal direction are respectively equipped with no friction sealed device, are respectively equipped with sealing-plug between the fixed conveyor axle of described loading oil groove and servo-actuated oil groove and vertical direction.
On the basis of such scheme, preferred version of the present invention is: described no friction sealed device contains the insulation pressure ring, is clipped in the insulation pressure ring and loads the annular flexible anti oil reservoir between oil groove and the gland nut that insulate.
Technical characterictic of the present invention also is: described charge detecting device contains charge measurement instrument and A/D data collector; described charge measurement instrument comprises the protection diode, signal amplifier and be connected the signal amplifier output terminal to measuring the output adjusting that charge error compensates and the LCD of monitoring output signal.
The present invention compared with prior art has the following advantages and the high-lighting effect: the present invention adopts twin shaft self-regulation transmission shaft, and the real-time self-regulation that has guaranteed the loading of twin shaft power is to neutrality; Large deformation characteristics according to the steel transmission shaft have realized that big load testing machine loads for the power of fritter pottery displacement control; Design one cover and twin shaft self-regulation transmission shaft coordinated insulation device, being implemented in the silicone oil that horizontal gearing and sample in the high-voltage electric field loading experiment be immersed in insulation fully experimentizes, thereby avoided in loading procedure, occurred the phenomenon of effluve owing to too much silicone oil; Do not guaranteed the precision that twin shaft power loads in the experiment by there being friction sealed device simultaneously; Another advantage of the present invention is to have improved traditional Sawyer-Tower charge measurement loop, can avoid in experiment because electricity loads the overload back to measuring and the infringement of data acquisition instrument, the error that the while can the compensation charge measurement result also has real-time monitoring.
Description of drawings
Fig. 1 is that twin shaft power electric coupling provided by the invention loads transmission and charge detecting device structural representation.
Fig. 2 is the spherical hinge of a self-regulation transmission shaft synoptic diagram.
Fig. 3 is the no friction sealed device synoptic diagram of design in the experiment.
Fig. 4 is the charge measurement circuit diagram.
Among the figure: 1-fixed conveyor axle; The spherical hinge of 2-self-regulation transmission shaft; 3-does not have friction sealed device; 4-loads oil groove; The 5-sealing-plug; 6-servo-actuated oil groove; The 7-fixed connecting rod; 8-fixed transfer bar; 9-regulates trapezoidal pressure head; 10-regulates connecting link; 11-regulates adapting rod; 12-regulates steel ball; 13-connects spring; The 14-groove; The 15-screw; The 16-screw thread; 17-annular flexible anti oil reservoir; The 18-housing screw; The 19-pressure ring that insulate; The 20-gland nut that insulate; The 21-collets; 22-connecting link screw thread; 23-protects diode; The 24-signal amplifier; 25-exports adjusting; 26-fixes trapezoidal pressure head; 27-charge measurement instrument; The input of 28-high pressure.
Embodiment
Below in conjunction with accompanying drawing principle of the present invention, concrete structure and the course of work are further described:
Fig. 1 is that twin shaft power electric coupling provided by the invention loads transmission and charge detecting device structural representation.Contain twin shaft power and load gearing, high pressure input 28 and charge measurement instrument 27; Described twin shaft power loads gearing and comprises a twin shaft self-regulation transmission shaft and a cover seal that cooperates with it.Described twin shaft self-regulation power transmission shafr includes a cover fixed conveyor axle 1 and the spherical hinge of cover self-regulation transmission shaft 2 in level and vertical direction; Described fixed conveyor axle 1 comprises collets 21, fixing trapezoidal pressure head 26, screwed fixed connecting rod 7 and fixed transfer bar 8; The fixed conveyor axle adopts high-precision processing, and fixing trapezoidal pressure head 26 non-loading ends are connected with columniform fixed connecting rod 7; Fixed connecting rod 7 cooperates by screw thread 16 with columniform fixed transfer bar 8, like this can be so that a whole set of two of loading transmission shaft axially respectively have a fixedly transmission shaft of centering, simultaneously again can conveniently assemble and disassemble on the seal of experiment.Fig. 2 is the spherical hinge of a self-regulation transmission shaft synoptic diagram, comprises collets 21, regulates trapezoidal pressure head 9, regulates steel ball 12, connects spring 13 and regulates connecting link 10; Regulate connecting link 10 1 ends and open the groove 14 of rectangle, compress connection by housing screw 18 is relative with the adjusting adapting rod 11 of rectangle; Regulate the other end of connecting link 10 and process the cone-shaped groove of equal size respectively with an end of regulating trapezoidal pressure head 9, four regulating springs 13 be separately fixed at the adjusting connecting link 11 of cylinder by Screw and regulate trapezoidal pressure head 9 around, is connected with four by regulating steel ball 12 that spring 13 will be regulated connecting link 11 and the trapezoidal pressure head 9 of adjusting is movably connected.When axle pressure loads, regulate steel ball 12 and smooth contact of cone-shaped groove of regulating trapezoidal pressure head 9, owing to connect the scalability of spring trapezoidal pressure head of adjusting and adjusting connecting link are rotated relatively freely, can not break away from and connect the connection trapezoidal pressure head 9 of also feasible simultaneously adjusting of spring 13 and regulate connecting link 10.The other end of regulating connecting link 10 is connected with the anodontia anchor clamps of the rectangle of testing machine by the adjusting adapting rod 11 of rectangle again, realizes the Dynamic Self-Adjusting function, and is feasible again easy to loading and unloading when being connected with seal when having guaranteed self-regulating function.In this structure of twin shaft power electric coupling experiment, regulate connecting link 10 and regulate between the adapting rod 11 by regulating 14 movable connections of groove of the rectangle on the connecting link, so promptly can be on rotation direction not constraint also can be to dismantle to become conveniently.This part fundamental purpose is that the power of guarantee regulating adapting rod 11 transmissions is loaded into when regulating connecting link 10 certain rotation freedom is arranged, and also can be designed to freely connecting of other, connect such as hinge, and be more loaded down with trivial details on disconnectable connection.No matter the spherical hinge of fixed conveyor axle or self-regulation transmission shaft, the pressure head that loads sample has all carried out the bathrocephaly design, purpose of design is to avoid the collision of four loading heads under twin shaft power loads like this, makes the self-regulation sphere cut with scissors transmission shaft processing and easy to assembly simultaneously.Solid insulation paster (thickness is about 2mm) among described collets 21 and the figure outside unillustrated each trapezoidal pressure head surface all is to design for the insulation needs in testing.Collets 21 on the pressure head top adopt the certain thickness i.e. alumina material of highly withstand voltage high-insulation again to make.Because aluminium oxide is very hard, be difficult to processing, so on fixing trapezoidal pressure head 26 that does not need pressure and the trapezoidal pressure head of adjusting 9 sides, select the insulating material of processing easily, loading at high-pressure side in the experiment is to be connected with the sample that scribbles electrode by thin copper sheet, copper sheet that exposes and metal drive shaft distance can not guarantee enough big, even in silicone oil, also might discharge, so need paste the teflon paster of processing easily as the solid insulation paster in the side of four trapezoidal metal pressure heads.Each solid insulation piece is all by insulation glue and fixing trapezoidal pressure head 26 with to regulate trapezoidal pressure head 9 bonding.
Twin shaft self-regulation power transmission shafr has cooperated a cover seal, this seal comprises the servo-actuated oil groove 6 that loads oil groove 4 and be arranged on loading oil groove outside, described loading oil groove 4 is provided with no friction sealed device 3 respectively and between the fixed connecting rod 7 of horizontal direction and the adjusting connecting link 10, is respectively equipped with sealing-plug 5 between the fixed conveyor axle of described loading oil groove 4 and servo-actuated oil groove 6 and vertical direction.This cover seal is designed at the loading of the electric field high pressure input 28 in the power electric coupling experiment, described high pressure input 28 comprises signal generator and signal amplifier (Trek 20/30), produce the power supply signal that needs loading by signal generator, form the required high pressure input 28 of experiment by 3000 times of the fixing amplifications of signal amplifier again, the peak value that is produced by signal generator in this structure of twin shaft power electric coupling experiment be ± and the sine wave of 5V is by 3000 times of charge amplifier amplifications, and electric field is loaded as ± 15000V in the experiment.This seal makes that whole experiment can (the silicone oil model be: 1000CS) carry out in the medium at the good and water white dimethyl silicon oil of insulating property, high voltage input terminal and gearing immerse in the silicone oil fully, and high-pressure side is to the loss of gearing or atmospherical discharges and required measurement electric charge when avoiding high voltage to load.Package unit is oil-proof in the time of will guaranteeing laterally to load in the experiment, thereby guarantees simultaneously acting force between horizontal direction transmission shaft and the oil groove little raising loading accuracy of trying one's best again.Concrete structure be connected as shown in Figure 1: described seal comprises and loads oil groove 4, servo-actuated oil groove 6, sealing-plug 5 and do not have friction sealed device 3.Described loading oil groove 4 is with fixed connecting rod 7 and regulates connecting link 10 oil groove that the organic glass that has three circular holes that is connected makes that matches that the oil groove wall thickness is 3mm; Process the circular hole of φ=28mm at the center that loads relative pair of sidewalls of oil groove 4 and bottom surface respectively, respectively process the aperture of 12 φ=1.5mm around each side circular hole, cooperate no friction sealed device 3; Loading oil groove 4 bottoms are connected by the fixed connecting rod 7 of the fixed conveyor axle that sealing-plug 5 and Z-axis power load, and guarantee and can relatively move.Described servo-actuated oil groove 6 is that the round-meshed organic glass oil groove in bottom is only arranged, and oil groove is fixedlyed connected with the cylindrical fixed transfer bar 8 in fixed conveyor axle lower end by sealing-plug 5; Can guarantee that like this oil groove moves with adapting rod in the process that experiment loads.Fixed connecting rod 7 and loading between the sealing-plug 5 because the requirement of sealing, so need bigger friction force, but we can control the loading force of vertical direction by the data that read the spherical hinge of the self-regulation transmission shaft 2 above the vertical direction in loading procedure, because without any connection power, so guaranteed the precision that loads.Described servo-actuated oil groove 6 fundamental purposes are to avoid in the processes such as installation, loading, unloading and dismounting of experiment owing to the leakage that loads oil groove 4 causes the test for contamination machine.Load oil groove 4 so servo-actuated oil groove 6 sizes are greater than, guarantee to accept the silicone oil of all leakages.
Described no friction sealed device 3 main principle directly do not have mutual frictional resistance for make transmission shaft and loading oil groove 4 on the basis to sealing, thus the error that minimizing power loads.On the basis of such scheme, preferred version of the present invention adopts and designs as Fig. 3: described no friction sealed device 3 comprises insulation pressure ring 19, annular flexible anti oil reservoir 17 and the insulation gland nut 20 that organic glass becomes; Such coupling arrangement effect is promptly will guarantee to load oil groove and load the sealing that transmission shaft is connected in experiment, avoids again causing loading accuracy to descend owing to connecting resistance.Screwed groove cylinder connecting link 10 or fixing trapezoidal depression bar 7 pass the mesopore of the annular flexible anti oil reservoir 17 that pmma material makes, by two insulation gland nuts 20 annular flexible anti oil reservoir 17 inner edges are clamped, the outer cause of annular flexible anti oil reservoir 17 has the insulation pressure ring 19 that the organic glass of 12 apertures makes and fixes by 12 Screws with loading oil groove 4.Because the sealing at two ends makes silicone oil can not leak outside, and the annular flexible anti oil reservoir 17 that leaves certain surplus in the centre makes and can quite move freely in certain displacement between drive link and the oil groove, and such displacement enough satisfies experimental requirements.Described sealing-plug 5 is that the electro-insulating rubber by neutral rigidity processes, and inner edge is processed into the manhole that is fit to size, and outer rim is processed into circular landing shape, and loads oil groove 4 and is connected with servo-actuated oil groove 6.
Twin shaft self-regulation transmission shaft connects the twin shaft testing machine and loads sample, makes twin shaft power load to guarantee real-time to neutrality by its self-regulating function, and seal guarantees that experiment carries out the high-voltage electric field loading safety in silicone oil.
We are in the experiment of this structure of twin shaft power electric coupling, what adopt in the machinery loading device is the vertical double-shaft electro-hydraulic servo testing machine, testing machine power output terminal comprises 2 cylindrical anodontia anchor clamps and two anodontia anchor clamps of rectangle, so the fixed transfer bar 8 of fixed conveyor axle 1 is processed into the cylindrical shape that matches with the cylindrical anodontia anchor clamps of testing machine, thereby closely be connected the stationary shaft of assurance level or vertical direction to loading with testing machine.(application number: 200610012089.9) comprise vertical main frame, hydraulic power source and control system, described main frame comprises vertical frame to described double-shaft four-cylinder electro-hydraulic servo testing machine, and horizontal direction and vertical direction load kinematic train.This experimental machine can be carried out power by displacement control and be loaded, and maximum load power is 1 * 10
5N.Owing to be that ceramic test piece is carried out pure pressure-loaded,, carry out the displacement control to test specimen and load so pottery destroys and causes the testing machine head-on collision to damage under the high pressure.Yet for the ceramic sample of corresponding size, the maximum load power in the experiment is no more than 1 * 10
4N, and the characteristics of stupalith are under the situation of very big loading force is out of shape still very for a short time, and this just loads ceramic sample to displacement control twin shaft power and has brought difficulty.For above problem, the a whole set of transmission shaft that loads all adopts No. 45 steel to process in experimental design, when guaranteeing to load needed rigidity, a big chunk displacement consumption loads at steel in the distortion of transmission shaft in the whole loading procedure, can compare accurate power to pottery by the force feedback data again and load.If testing machine adopts the step-by-step system of 0.1mm/min to load in the experiment, ceramic sample power loading speed can be controlled at 100N/min, reaches the desired precision of experiment, and is simultaneously very convenient again in control.
Figure 4 shows that it is the charge measurement circuit diagram.Described charge detecting device contains charge measurement instrument 27 and A/D data collector, and what described charge measurement instrument 27 comprised protection diode 23 and signal amplifier 24 and was connected the signal amplifier output terminal regulates 25 and the small-sized LCD of monitoring output signal to measuring output that charge error compensates.Above-mentioned measuring sensor is become one, become charge measurement instrument 27; Charge data is gathered by the A/D capture card and the input computer.The measurement ultimate principle of described charge measurement circuit still adopts traditional Sawyer-Tower loop, because the size of experimental sample is bigger, the electric field intensity of required loading also will increase greatly in experiment, because the electric discharge phenomena that a variety of causes causes are inevitable, in case will produce instantaneous high-pressure phenomena in the discharge package unit, under the state that instantaneous high pressure produces, guarantee that the input signal of computer capture card is no more than 10V.To the infringement of valuable acquisition instrument, on measuring principle basis, traditional Sawyer-Tower loop, improved measurement loop and the LCD that has overvoltage protection and charge compensation that charge measurement instrument 27 is integrated is included in capacitor C for fear of overload
0Metering circuit in protection diode 23 in the parallel connection, and signal amplifier 24 and output regulate 25.C under the situation of electric field overload
0If both end voltage is higher than 10V, protection diode 23 is conducting, plays a protective role.25 elements are regulated in signal amplifier 24 and output can make image data have controllability, thus output regulate 25 adjust measure in because the error that charge loss brings improves the accuracy of measurement result.Connect a small-sized LCD at the output terminal of data, like this can be in experimentation monitoring output signal in real time.The pulse signal that can not stop for diode in addition, pulse stabilization element on the input end of capture card also should parallel connection is stablized the pulse signal of high frequency.
Claims (4)
1, a kind of twin shaft power electric coupling loads transmission and charge detecting device, contain twin shaft power and load gearing and charge detecting device, it is characterized in that: described twin shaft power loads gearing and adopts twin shaft self-regulation transmission shaft, and described twin shaft self-regulation transmission shaft includes a cover fixed conveyor axle (1) and the spherical hinge of cover self-regulation transmission shaft (2) in level and vertical direction; Described fixed conveyor axle (1) comprises the collets (21) that connect successively, fixing trapezoidal pressure head (26), fixed connecting rod (7) and the fixed transfer bar (8) that is connected with twin shaft load test machine clamp; Described self-regulation spherical hinge transmission shaft (2) comprises collets (21), regulates trapezoidal pressure head (9), regulates steel ball (12), connects spring (13), the adjusting adapting rod (11) of regulating connecting link (10) and being connected with twin shaft load test machine clamp; One end of the trapezoidal pressure head of described adjusting (9) cooperates by regulating steel ball (12) with adjusting connecting link (10), and by connecting spring (13) flexible connection, the other end of regulating trapezoidal pressure head is connected with collets (21), an end of regulating adapting rod (11) flexibly connects with regulating connecting link (10), and the other end is connected with twin shaft load test machine clamp.
2, load transmission and charge detecting device according to the electric coupling of the described twin shaft power of claim 1, it is characterized in that: this device also comprises a seal that matches with twin shaft self-regulation transmission shaft, this seal comprises the servo-actuated oil groove (6) that loads oil groove (4) and be arranged on loading oil groove outside, described loading oil groove is provided with no friction sealed device (3) respectively and between fixed connecting rod of horizontal direction (7) and the adjusting connecting link (10), is respectively equipped with sealing-plug (5) between the fixed conveyor axle of described loading oil groove (4) and servo-actuated oil groove (6) and vertical direction.
3, load transmission and charge detecting device according to the electric coupling of the described twin shaft power of claim 2, it is characterized in that: described no friction sealed device (3) contains insulation pressure ring (19), is clipped in insulation pressure ring (19) and loads the annular flexible anti oil reservoir (17) between oil groove (4) and the gland nut (20) that insulate.
4, load transmission and charge detecting device according to claim 1,2 or 3 described twin shaft power electric coupling; it is characterized in that: described charge detecting device contains charge measurement instrument (27) and A/D data collector; described charge measurement instrument comprises protection diode (23), signal amplifier (24) and be connected the signal amplifier output terminal to measuring the LCD that (25) and monitoring output signal are regulated in output that charge error compensates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610114089XA CN100507499C (en) | 2006-10-27 | 2006-10-27 | Double shaft force electric coupling loading driving and charge detecting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200610114089XA CN100507499C (en) | 2006-10-27 | 2006-10-27 | Double shaft force electric coupling loading driving and charge detecting device |
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| Publication Number | Publication Date |
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| CN1945266A true CN1945266A (en) | 2007-04-11 |
| CN100507499C CN100507499C (en) | 2009-07-01 |
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| CNB200610114089XA Expired - Fee Related CN100507499C (en) | 2006-10-27 | 2006-10-27 | Double shaft force electric coupling loading driving and charge detecting device |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102706726A (en) * | 2012-04-24 | 2012-10-03 | 清华大学 | Force-electricity coupling dynamic fracture experimental system |
| CN101680741B (en) * | 2007-07-18 | 2013-10-23 | 埃洛斯菲克斯图尔激光公司 | System and method for measuring alignment errors of axles |
| CN104101792A (en) * | 2013-04-11 | 2014-10-15 | 中国科学院上海硅酸盐研究所 | Ferroelectric material ferroelectricity and ferroelasticity measuring system and method under force field, electric field and thermal field |
| CN107515151A (en) * | 2017-09-27 | 2017-12-26 | 山东玲珑轮胎股份有限公司 | Rubber double-shaft dynamic performance testing device, method and system |
| CN108896394A (en) * | 2018-07-13 | 2018-11-27 | 中国工程物理研究院总体工程研究所 | Material Biaxial Compression loading device |
| CN113514331A (en) * | 2021-06-08 | 2021-10-19 | 浙江大学 | Large-load double-shaft compression loading device |
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2006
- 2006-10-27 CN CNB200610114089XA patent/CN100507499C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101680741B (en) * | 2007-07-18 | 2013-10-23 | 埃洛斯菲克斯图尔激光公司 | System and method for measuring alignment errors of axles |
| CN102706726A (en) * | 2012-04-24 | 2012-10-03 | 清华大学 | Force-electricity coupling dynamic fracture experimental system |
| CN102706726B (en) * | 2012-04-24 | 2014-09-24 | 清华大学 | Force-electricity coupling dynamic fracture experimental system |
| CN104101792A (en) * | 2013-04-11 | 2014-10-15 | 中国科学院上海硅酸盐研究所 | Ferroelectric material ferroelectricity and ferroelasticity measuring system and method under force field, electric field and thermal field |
| CN107515151A (en) * | 2017-09-27 | 2017-12-26 | 山东玲珑轮胎股份有限公司 | Rubber double-shaft dynamic performance testing device, method and system |
| CN107515151B (en) * | 2017-09-27 | 2023-09-29 | 山东玲珑轮胎股份有限公司 | Rubber double-shaft dynamic performance testing device, method and system |
| CN108896394A (en) * | 2018-07-13 | 2018-11-27 | 中国工程物理研究院总体工程研究所 | Material Biaxial Compression loading device |
| CN108896394B (en) * | 2018-07-13 | 2023-12-29 | 中国工程物理研究院总体工程研究所 | Material biax compression loading device |
| CN113514331A (en) * | 2021-06-08 | 2021-10-19 | 浙江大学 | Large-load double-shaft compression loading device |
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