CN202547836U - Conductive slip ring brush pressure detection device - Google Patents
Conductive slip ring brush pressure detection device Download PDFInfo
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- CN202547836U CN202547836U CN2011205689578U CN201120568957U CN202547836U CN 202547836 U CN202547836 U CN 202547836U CN 2011205689578 U CN2011205689578 U CN 2011205689578U CN 201120568957 U CN201120568957 U CN 201120568957U CN 202547836 U CN202547836 U CN 202547836U
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- slip ring
- automatically controlled
- conducting slip
- dynamometer
- dimension
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Abstract
The utility model provides a conductive slip ring brush pressure detection device. One side of a base plate is provided with a two-dimensional electric control displacement table, and a conductive slip ring fixing assembly is arranged on the two-dimensional electric control displacement table; the other side of the base plate is provided with a fixed block I; the upper end of a side part of the fixed block I is provided with a one-dimensional central control displacement table which can slide up and down along the fixed block I; a fixed block II is vertically arranged on the table surface of the one-dimensional central control displacement table, and the other end of the fixed block II is connected with an electric control rotary table; one end of a dynamometer fixing assembly is connected with a rotary table surface of the electric control rotary table, and the other end of the dynamometer fixing assembly is connected with a digital dynamometer; the lower end of the digital dynamometer is provided with a dynamometer hook, and the dynamometer hook can contact with a conductive slip ring fixed on the conductive slip ring fixing assembly; the two-dimensional electric control displacement table, the one-dimensional electric control displacement table, the electric control rotary table, the conductive slip ring and the digital dynamometer are all connected with a control box, and the control box is connected with a computer host. The detection device provided by the utility model is capable of detecting slip rings which have larger or smaller brush pressure, and can improve working reliability of the conductive slip ring greatly.
Description
Technical field
The utility model relates to inertia device assembling field, particularly relates to a kind of conducting slip ring brush pressure pick-up unit.
Background technology
Conducting slip ring is to utilize the elasticity of brush self to contact with the conducting rod slip ring, reaches the purpose of transmission signals; The instrument energising starts, and when platform stage body or outer shroud rotated, conducting rod rotated relative to brush with certain angular velocity; In rotation process, require conducting rod and brush must contact reliably, disconnection, dislocation and other poor contact phenomenon can not be arranged; And contact pressure requires can not be excessive; Can not be too small, too small like pressure, phenomenon takes place to break off in brush and conducting rod easily when work; Excessive like pressure, serious wear between brush and slip ring is easy to generate thread wearer; Make between the conducting rod slip ring and produce short circuit; So, measure the contact pressure between brush and slip ring, the functional reliability of conducting slip ring and even whole inertia system there is very important meaning.But in actual production process; Because little, complex structure of conducting slip ring size and number of rings are many, between the brush gap little (minimum is 0.44mm), the multi-conducting slip ring also can't directly be measured the contact pressure between brush and slip ring at present; Can only obtain the whole contact pressure between brush and the slip ring indirectly through the pivoting friction torque of measuring conducting slip ring; So can't detect the inappropriate brush of pressure, the minority number of rings is few, and the big conducting slip ring in gap draws brush to obtain contact pressure through counting with the survey gram at present; This method is time-consuming, effort and error are bigger, therefore is necessary to improve.
The utility model content
The technical matters that the utility model solves: a kind of conducting slip ring brush pressure pick-up unit is provided; In conducting slip ring place in circuit to be measured, and make special-purpose dynamometer gib head, adopt the mobile brush that triggers of multidimensional displacement platform control dynamometer; In the process of pull-up brush; When the moment of brush and slip ring disconnection, the level of observation circuit changes, and triggers interruption; Embedded main control chip reads the reading of dynamometer at this moment through serial communication interface, and this reading is exactly the brush pressure value of this ring.
The technical scheme that the utility model adopts: conducting slip ring brush pressure pick-up unit; Has base plate; A side is provided with two-dimentional automatically controlled displacement platform and which is provided with the conducting slip ring fixing tool on the said base plate, and the base plate opposite side is provided with fixed block I, and said fixed block I sidepiece upper end is provided with control displacement platform in the one dimension that can slide up and down along fixed block I; Vertically be provided with fixed block II on the control displacement platform table top in the said one dimension; The said fixed block II other end is connected with automatically controlled universal stage, and dynamometer fixing tool one end is connected with automatically controlled universal stage rotary table top, and the dynamometer fixing tool other end connects digital force gauge; Said digital force gauge lower end is provided with the dynamometer gib head, and said dynamometer gib head can contact with the conducting slip ring on being fixed on the conducting slip ring fixing tool; Wherein, the automatically controlled displacement platform of said two dimension, the automatically controlled displacement platform of one dimension, automatically controlled universal stage, conducting slip ring all are connected with control box with digital force gauge, and said control box is connected with host computer.
Wherein, the automatically controlled displacement platform of said two dimension links to each other with the three-dimensional driving governor of control box with the automatically controlled displacement platform of one dimension; Said automatically controlled universal stage links to each other with the one dimension driving governor of control box; Said three-dimensional driving governor and one dimension driving governor move through link to each other with host computer four of realizing computer program control displacement platform of control line respectively; Said digital force gauge is connected with circuit board in the control box through control line, and said conducting slip ring passes through lead and is connected with conducting slip ring circuit interface on the control box.
Further, the automatically controlled displacement platform of said two dimension is connected with accurate ball screw and by step motor drive; Control displacement platform is connected with ball screw and by the motor-driven that improves in the said one dimension; Said automatically controlled universal stage is connected with worm gear, drives automatically controlled universal stage by step motor drive after said worm gear and the worm mesh and does 360 ° and rotatablely move.
Further, said control box is provided with LCDs.
Further, said control box is provided with 96 road conducting slip ring break-make pilot lamp.
Further, said dynamometer gib head bends with the platinoiridita silk and forms.
The utility model compared with prior art can be measured all brush pressure values of conducting slip ring; Thereby can detect the bigger than normal and brush pressure slip ring less than normal of brush pressure; Through the inappropriate slip ring of adjustment brush pressure, can improve the functional reliability of conducting slip ring greatly.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the simulation conducting rod structural representation in the utility model use;
Fig. 3 is brush and the conducting slip ring wiring schematic diagram in the utility model;
Fig. 4 is the control circuit principle schematic of the utility model.
Embodiment
A kind of embodiment of the utility model is described below in conjunction with accompanying drawing 1,2,3,4.
Conducting slip ring brush pressure pick-up unit has base plate 1, and a side is provided with two-dimentional automatically controlled displacement platform 2 and which is provided with conducting slip ring fixing tool 6 on the said base plate 1, and the automatically controlled displacement platform 2 of said two dimension is connected with accurate ball screw and by step motor drive; Base plate 1 opposite side is provided with fixed block I 5, and said fixed block I5 sidepiece upper end is provided with control displacement platform 3 in the one dimension that can slide up and down along fixed block I 5, and control displacement platform 3 is connected with ball screw and by the motor-driven that improves in the said one dimension; Vertically be provided with fixed block II11 on control displacement platform 3 table tops in the said one dimension; The said fixed block II11 other end is connected with automatically controlled universal stage 4; Said automatically controlled universal stage 4 is connected with worm gear, drives automatically controlled universal stage 4 by step motor drive after said worm gear and the worm mesh and does 360 ° and rotatablely move.Dynamometer fixing tool 10 1 ends are connected with automatically controlled universal stage 4 rotary table tops; Dynamometer fixing tool 10 other ends connect digital force gauge 8; Said digital force gauge 8 lower ends are provided with dynamometer gib head 9, and said dynamometer gib head 9 can contact with the conducting slip ring 7 on being fixed on conducting slip ring fixing tool 6; Wherein, The automatically controlled displacement platform of the automatically controlled displacement platform of said two dimension 2, one dimension 3, automatically controlled universal stage 4, conducting slip ring 7 all are connected with control box 14 with digital force gauge 8; Said control box 14 is connected with host computer 12; Also be provided with computer monitor 13 and be connected with host computer, specifically, the automatically controlled displacement platform 2 of said two dimension links to each other with the three-dimensional driving governor 16 of control box 14 with the automatically controlled displacement platform 3 of one dimension; Said automatically controlled universal stage 4 links to each other with the one dimension driving governor 15 of control box 14; Said three-dimensional driving governor 16 and one dimension driving governor 15 move through link to each other with host computer 12 four of realizing computer program control displacement platform of control line respectively; Said digital force gauge 8 is connected with circuit board in the control box 14 through control line; Said conducting slip ring 7 is connected with conducting slip ring circuit interface 18 on the control box 14 through lead; Said control box 14 is provided with LCDs 19 and 96 road conducting slip ring break-make pilot lamp 17, and said dynamometer gib head 9 usefulness platinoiridita silks bend and form.
Can find out that through the said structure synoptic diagram displacement platform of this brush pressure pick-up unit can realize the motion of 4 degree of freedom: X, Y, three translational degree of freedom of Z, a rotational freedom around the Z axle.Simulate the action of manual pull-up brush through adopting 4 axial translation platforms: wherein X, Y axle translation displacement platform (the two-dimentional automatically controlled displacement platform 2 among the figure) are responsible for the location, and Z axle translation displacement platform (the automatically controlled displacement platform 3 of the one dimension among the figure) is responsible for the pull-up brush.Because the brush spacing is very little; Common dynamometer gib head can't use; So adopt the big platinoiridita silk of material stiffness to be bent into the dynamometer gib head; And can realize could controlling the brush that gib head triggers conducting slip ring around the displacement platform (the automatically controlled universal stage 4 among the figure) that the Z axle rotates through one, so just solved the direction of measurement brush pressure, the problem that the position can't guarantee.
In the measuring process of brush pressure, brush is " ∏ " type structure, and with 7 liang of end in contact of conducting slip ring, when measuring the pressure of an end, the other end need insulate, because the brush number of rings is many, size is little, and spacing is close, so the insulation of brush also is a difficult point.The employed insulating method of test is a brush opposite side pad kraft capacitor paper at present, but this method is time-consuming, effort, and in the process of pad kraft capacitor paper, easily brush is caused damage or brings fifth wheel into.For this reason, designed a kind of frock of simulating conducting rod 20, the used conducting rod of the physical dimension of simulation conducting rod 20 and formal electric installation is in full accord, and difference just is to simulate the used material of electric installation.What the right cylinder 3/4 of simulation conducting rod 20 adopted is that brass 21,1/4 adopts insulation organic glass 22, is glued at last to form.
In the use, when measuring the brush pressure of an end, with regard to rotary simulation conducting rod 20 organic glass 22 is contacted with the brush other end, the brush other end and conducting rod 20 have insulated like this.Make in this way, all brushes that once can insulate, convenient and swift, and to not damage of brush.After adjusting all brush pressures, just can the brush brush holder directly be installed on the formal conducting rod at last.So just solved the brush Insulation Problems of conducting slip ring.
In the process of manual pull-up brush, the two ends of digital multimeter are connect brush and slip ring respectively, slip ring and brush are conductings, digital multimeter produces chimes of doom.In the process of pull-up brush, it is big that the displayed value of meter constantly becomes, and when the moment of slip ring and brush disconnection, chimes of doom stops, and this moment, the operator read the displayed value of dynamometer, was exactly the brush pressure value of measuring.But owing to stop to the reading that reads dynamometer from chimes of doom, delay time if having time in the centre, and the different operating person reflects that the time is also different, and in reading process, the shake of hand also can exert an influence to measurement result.For this reason, in this device, brush and slip ring are inserted in the circuit as shown in Figure 3.When brush contacts with slip ring, be equivalent to switch closure, sampled level is a high level; In the process that brush is pulled up, the moment of disconnection, be equivalent to switch opens, sampled level is a low level.Trigger and interrupt again through control chip this moment, reads the reading of dynamometer this moment, and this number is exactly a brush pressure value to be measured.So just solved in the gaging pressure process, break-make is not allowed wield problem constantly.
Solved after the above-mentioned difficult point, just according to above-mentioned solution design overall plan.Producing at present the conducting slip ring that uses is at most 96 rings, and the brush pressure testing fixture of design also can be measured the conducting slip ring of 96 rings for this reason, and the conducting slip ring that is less than 96 rings can carry out wire jumper through the designed circuit plate and selects.The structure of the conducting slip ring brush pressure pick-up unit of final design is as shown in Figure 1
In use; Through control displacement platform 3 and automatically controlled universal stage 4 in the two-dimentional automatically controlled displacement platform of host computer 12 control 2, the one dimension, control dynamometer gib head 9 triggers brush, triggers in the process of brush; It is big that the measured value of digital force gauge 8 constantly becomes; When the moment of brush and slip ring disconnection, the level that is arranged in the testing circuit of control box 14 changes, and triggers to interrupt; This moment, control circuit read the reading of digital force gauge 8 through the RS232 serial communication interface, and showed through the LCDs on the control box 19.The numerical value that LCDs 19 shows is exactly the brush of required measurement and the contact pressure value between the slip ring, reads the number of rings of 96 road slip ring break-make pilot lamp 17 that extinguish on the control box 14 afterwards, is exactly the number of rings of measuring the conducting slip ring of brush pressure.Then, move, put down brush through host computer 12 control displacement platforms; Brush and slip ring conducting; 96 road slip ring break-make pilot lamp 17 that extinguish are lighted again, and circuit restarts monitoring level to be changed, and so just can then measure the brush pressure value of next conducting slip ring.
Digital force gauge 8, measuring the mechanical meaurement instrument that adopts at present is to survey the gram meter, for mechanical.Carry out automatic measurement, must select digital dynamometer for use, and must have general-purpose communication interface.What select at last is the FGP-0.2 dynamometer of Japanese SHIMPO company.Its range can reach 200g, and precision can reach 0.1g, and has USB and two kinds of communication interfaces of RS232.
Displacement platform part: because conducting slip ring is very accurate parts, so the displacement platform that moves of control figure dynamometer 8 must be accurately, move reliably.What select for use is 4 (X axle, Y axle, Z axle and turning axle) electronic precision displacement platforms of Zolix company, and it adopts the ball screw and the stepper motor of import, can move movement resolution＜3um through the drive controlling programmed control displacement platform of installing on computers.
The control circuit part: the control circuit of design need be realized following 3 functions: 1. the level of being responsible for monitoring 96 road circuit changes; 2. be responsible in time carrying out communication, reading of data with digital dynamometer; 3. have Man Machine Interfaces such as display screen, button.
According to above-mentioned functions, the design control circuit, it is made up of governor circuit and expanded circuit two parts:
Governor circuit: the main control chip that governor circuit is selected for use is novel AVR single chip computer AT mega16.The UART interface of ATmega16 links to each other with the RS232 interface of FGP-0.2 digital force gauge through level protocol conversion chip MAX232: wherein the TXD pin of digital dynamometer links to each other with the RXD pin of MAX232; The RXD pin of dynamometer links to each other with the TXD pin of MAX232; Link to each other with the GND pin of MAX232 after the 4th pin GND of digital force gauge links to each other with the 5th pin " joint detection ", ATmega16 just can read the reading of digital dynamometer through sending specific order like this.
The look-at-me 1 of expanded circuit is to link to each other with the interrupt pin INT of ATmega16 chip, and the triggering mode of this interruption is made as the level change triggers and interrupts.When detecting the negative edge variation, explain that brush and slip ring break off, then send the reading that digital dynamometer is read in order, and send the liquid crystal display 19 of control box 14 to show the result; When detecting the rising edge variation, explain that brush contacts with slip ring again, measuring process finishes, and then removes the result who measured last time, and this state is shown.The major function of expanded circuit is: be responsible for the one-channel signal that governor circuit detects is expanded to 96 road signals, and the on off operating mode of 96 road signals is shown through the LED lamp.
Present most of control chip belongs to order and carries out chip, if adopt the mode of inquiry, and the one, the chip with 96 above I/O mouths is more rare; The 2nd, when the level variation took place, can there be uncertain delay time error in the mode of sequential query.Expanded circuit has adopted the CPLD chip EPM570T144 with parallel data processing capacity for this reason.Design has used 96 I/O mouths that 96 slip rings are carried out level detection, and the LED light of in 96 testing circuits, having connected, and what be used for indication measurement is the brush pressure value of which ring.Level with 96 I/O in program carry out " with " handle; The result is through level shifting circuit in its output; Link to each other with the interrupt pin of governor circuit, the level of arbitrary like this ring changes the variation that all will cause the output result, has reached the function that multiple signals detect simultaneously.When the conducting slip ring that is less than 96 rings carrying out brush pressure when test, short circuit is carried out through wire jumper in no testing circuit two ends, so just can carry out brush pressure and detect.
For the brush pressure pick-up unit of design is checked, selected for use the conducting slip ring of one 76 ring to carry out the brush pressure measurement, the stationkeeping that digital force gauge 8 triggers is from 4.25mm place, brush end, and whole brush is 7.88mm to the distance of slip ring.According to the relation of the power and the arm of force, the result that dynamometer is measured need multiply by the 0.54 contact pressure value that just is scaled between brush and the slip ring.This time the result of the measurement of experiment is as shown in the table:
Above experimental data can be found out: conducting slip ring brush pressure testing fixture can be measured all brush pressure values of conducting slip ring; Thereby can detect the bigger than normal and brush pressure slip ring less than normal of brush pressure; Through the inappropriate slip ring of adjustment brush pressure, can improve the functional reliability of conducting slip ring greatly.
The foregoing description, just the preferred embodiment of the utility model is not to be used for limiting the utility model practical range, so all equivalences of being done with the said content of the utility model claim change, all should be included within the utility model claim scope.
Claims (6)
1. conducting slip ring brush pressure pick-up unit; Has base plate (1); It is characterized in that: the last side of said base plate (1) is provided with two-dimentional automatically controlled displacement platform (2) and which is provided with conducting slip ring fixing tool (6); Base plate (1) opposite side is provided with fixed block I (5); Said fixed block I (5) sidepiece upper end is provided with control displacement platform (3) in the one dimension that can slide up and down along fixed block I (5), vertically is provided with fixed block II (11) on control displacement platform (3) table top in the said one dimension, and said fixed block II (11) other end is connected with automatically controlled universal stage (4); Dynamometer fixing tool (10) one ends are connected with automatically controlled universal stage (4) rotary table top; Dynamometer fixing tool (10) other end connects digital force gauge (8), and said digital force gauge (8) lower end is provided with dynamometer gib head (9), and said dynamometer gib head (9) can contact with the conducting slip ring (7) on being fixed on conducting slip ring fixing tool (6); Wherein, the automatically controlled displacement platform of said two dimension (2), the automatically controlled displacement platform of one dimension (3), automatically controlled universal stage (4), conducting slip ring (7) and digital force gauge (8) all are connected with control box (14), and said control box (14) is connected with host computer (12).
2. conducting slip ring brush pressure pick-up unit according to claim 1 is characterized in that: the automatically controlled displacement platform of said two dimension (2) links to each other with the three-dimensional driving governor (16) of control box (14) with the automatically controlled displacement platform of one dimension (3); Said automatically controlled universal stage (4) links to each other with the one dimension driving governor (15) of control box (14); Said three-dimensional driving governor (16) and one dimension driving governor (15) move through link to each other with host computer (12) four of realizing computer program control displacement platform of control line respectively; Said digital force gauge (8) is connected with circuit board in the control box (14) through control line, and said conducting slip ring (7) passes through lead and is connected with conducting slip ring circuit interface (18) on the control box (14).
3. conducting slip ring brush pressure pick-up unit according to claim 1 and 2 is characterized in that: the automatically controlled displacement platform of said two dimension (2) is connected with accurate ball screw and by step motor drive; Control displacement platform (3) is connected with ball screw and by improving motor-driven in the said one dimension; Said automatically controlled universal stage (4) is connected with worm gear, drives automatically controlled universal stage (4) by step motor drive after said worm gear and the worm mesh and does 360 ° and rotatablely move.
4. conducting slip ring brush pressure pick-up unit according to claim 3 is characterized in that: said control box (14) is provided with LCDs (19).
5. conducting slip ring brush pressure pick-up unit according to claim 4 is characterized in that: said control box (14) is provided with 96 road conducting slip ring break-make pilot lamp (17).
6. conducting slip ring brush pressure pick-up unit according to claim 5 is characterized in that: said dynamometer gib head (9) bends with the platinoiridita silk and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205689578U CN202547836U (en) | 2011-12-30 | 2011-12-30 | Conductive slip ring brush pressure detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205689578U CN202547836U (en) | 2011-12-30 | 2011-12-30 | Conductive slip ring brush pressure detection device |
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| Publication Number | Publication Date |
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| CN202547836U true CN202547836U (en) | 2012-11-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011205689578U Expired - Lifetime CN202547836U (en) | 2011-12-30 | 2011-12-30 | Conductive slip ring brush pressure detection device |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411719A (en) * | 2013-08-13 | 2013-11-27 | 中国航空工业集团公司北京长城计量测试技术研究所 | Conducting ring brush wire contact pressure detection method and device |
| CN103837280A (en) * | 2014-03-31 | 2014-06-04 | 常州工学院 | Method and system for measuring contact force of satellite-borne slip ring based on cantilever beam theory |
| CN105136374A (en) * | 2015-09-07 | 2015-12-09 | 昆山斯格威电子科技有限公司 | Conductive slide ring contact pressure test device |
| CN105865663A (en) * | 2016-03-25 | 2016-08-17 | 航天科技控股集团股份有限公司 | Instrument pointer pulling force detection device |
| CN107014535A (en) * | 2017-04-28 | 2017-08-04 | 北京航天控制仪器研究所 | Conducting slip ring moment of friction device for accurately measuring |
| CN108827516A (en) * | 2018-08-08 | 2018-11-16 | 西北工业大学 | A kind of brush pressure test device of mini component |
| CN109142052A (en) * | 2018-08-09 | 2019-01-04 | 西北工业大学 | A kind of precision measurement equipment of beryllium-bronze leaf spring rigidity and elastic hysteresis effect |
| CN110196130A (en) * | 2019-05-28 | 2019-09-03 | 上海航天设备制造总厂有限公司 | A kind of slip-ring brush contact pressure detection method based on image procossing |
| CN110926677A (en) * | 2019-12-30 | 2020-03-27 | 长春理工大学 | Electric brush wire contact pressure detection device |
| CN111044193A (en) * | 2019-12-13 | 2020-04-21 | 武汉航空仪表有限责任公司 | Measuring device and debugging method for contact pressure of electric brush |
| CN112964399A (en) * | 2021-04-05 | 2021-06-15 | 西北工业大学 | Full-automatic tester and testing method for contact pressure of metal wire/spring piece of electronic device |
| CN112963953A (en) * | 2021-03-23 | 2021-06-15 | 杭州职业技术学院 | Air conditioner installation and debugging simulation regulator |
| CN113029411A (en) * | 2021-01-22 | 2021-06-25 | 中国航空工业集团公司北京长城航空测控技术研究所 | System and method for testing brush wire pressure of intelligent conductive slip ring |
-
2011
- 2011-12-30 CN CN2011205689578U patent/CN202547836U/en not_active Expired - Lifetime
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103411719A (en) * | 2013-08-13 | 2013-11-27 | 中国航空工业集团公司北京长城计量测试技术研究所 | Conducting ring brush wire contact pressure detection method and device |
| CN103837280A (en) * | 2014-03-31 | 2014-06-04 | 常州工学院 | Method and system for measuring contact force of satellite-borne slip ring based on cantilever beam theory |
| CN105136374A (en) * | 2015-09-07 | 2015-12-09 | 昆山斯格威电子科技有限公司 | Conductive slide ring contact pressure test device |
| CN105865663B (en) * | 2016-03-25 | 2019-04-02 | 航天科技控股集团股份有限公司 | A kind of gauge pointer stretching force detecting apparatus |
| CN105865663A (en) * | 2016-03-25 | 2016-08-17 | 航天科技控股集团股份有限公司 | Instrument pointer pulling force detection device |
| CN107014535A (en) * | 2017-04-28 | 2017-08-04 | 北京航天控制仪器研究所 | Conducting slip ring moment of friction device for accurately measuring |
| CN108827516A (en) * | 2018-08-08 | 2018-11-16 | 西北工业大学 | A kind of brush pressure test device of mini component |
| CN109142052B (en) * | 2018-08-09 | 2021-02-02 | 西北工业大学 | Precise test equipment for rigidity and elastic hysteresis effect of beryllium bronze leaf spring |
| CN109142052A (en) * | 2018-08-09 | 2019-01-04 | 西北工业大学 | A kind of precision measurement equipment of beryllium-bronze leaf spring rigidity and elastic hysteresis effect |
| CN110196130A (en) * | 2019-05-28 | 2019-09-03 | 上海航天设备制造总厂有限公司 | A kind of slip-ring brush contact pressure detection method based on image procossing |
| CN110196130B (en) * | 2019-05-28 | 2020-11-10 | 上海航天设备制造总厂有限公司 | Slip ring electric brush contact pressure detection method based on image processing |
| CN111044193A (en) * | 2019-12-13 | 2020-04-21 | 武汉航空仪表有限责任公司 | Measuring device and debugging method for contact pressure of electric brush |
| CN110926677A (en) * | 2019-12-30 | 2020-03-27 | 长春理工大学 | Electric brush wire contact pressure detection device |
| CN113029411A (en) * | 2021-01-22 | 2021-06-25 | 中国航空工业集团公司北京长城航空测控技术研究所 | System and method for testing brush wire pressure of intelligent conductive slip ring |
| CN112963953A (en) * | 2021-03-23 | 2021-06-15 | 杭州职业技术学院 | Air conditioner installation and debugging simulation regulator |
| CN112963953B (en) * | 2021-03-23 | 2022-03-18 | 杭州职业技术学院 | Air conditioner installation and debugging simulation regulator |
| CN112964399A (en) * | 2021-04-05 | 2021-06-15 | 西北工业大学 | Full-automatic tester and testing method for contact pressure of metal wire/spring piece of electronic device |
| CN112964399B (en) * | 2021-04-05 | 2022-07-29 | 西北工业大学 | Full-automatic tester and testing method for contact pressure of metal wire/spring piece of electronic device |
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