CN201955448U - Dynamic parameter test system of high speed solenoid valve for knitting machine - Google Patents

Dynamic parameter test system of high speed solenoid valve for knitting machine Download PDF

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Publication number
CN201955448U
CN201955448U CN2010206682887U CN201020668288U CN201955448U CN 201955448 U CN201955448 U CN 201955448U CN 2010206682887 U CN2010206682887 U CN 2010206682887U CN 201020668288 U CN201020668288 U CN 201020668288U CN 201955448 U CN201955448 U CN 201955448U
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CN
China
Prior art keywords
solenoid valve
measured
test
speed
circuit board
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CN2010206682887U
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Chinese (zh)
Inventor
华强
霍铖宇
卢达
范龙保
徐刚
李新
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常熟理工学院
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Abstract

The utility model discloses a dynamic parameter test system of a high speed solenoid valve for a knitting machine. The dynamic parameter test system comprises a test desk (1), a test control circuit board (2), an upper computer (3) and an external power supply module (4), wherein the upper computer (3) comprises a data acquisition card used for realizing communication with the test control circuit board (2) and accomplishing the measurement of the voltage signal to be tested output by the test control circuit board (2) and an image acquisition card used for synchronously acquiring and storing the output data of a high speed line scanning camera (5) and having the function of synchronous triggering a measurement interface circuit board (12). A non-contact measurement method based on the machine vision and a design method for a virtual device are used for the system, and a general-purpose computer, the data acquisition card and a self-developed hardware test platform are used to accurately measure the dynamic response time of the solenoid valve, so that the necessary test data is provided for the design and detection of the solenoid valves.

Description

Knitting Machinery high-speed electromagnetic valve dynamic parameter testing system
Technical field
The utility model relates to a kind of solenoid valve dynamic parameter testing system, particularly a kind of Knitting Machinery high-speed electromagnetic valve dynamic parameter testing system.
Background technology
Knitting Machinery is a production equipment of producing knitted dress necessity such as knit fabric and woollen sweater, in recent years, along with the continuous increase of international, home market to knitting class lining and clothes demand, domestic Knitting Machinery manufacturing industry, particularly Computerized flat knitting machine production is developed rapidly, but the also main dependence on import of present high-performance Knitting Machinery.Simultaneously, domestic also lack at present to the key of Knitting Machinery in addition parts do comprehensively, systematic research and exploitation, this has also restricted the raising of Knitting Machinery complete machine performance to a certain extent.
Solenoid valve uses quite extensive in Knitting Machinery, kind is many, consumption is big, be the key parts in addition that directly influence Knitting Machinery complete machine performance, especially the dynamic response time of high-speed electromagnetic valve and functional reliability have determined the braiding speed and the stability of Knitting Machinery complete machine, the solenoid valve dynamic response time is meant that solenoid valve begins to be energized to solenoid valve action component (spool or the mechanical part that links with spool) action and puts in place the needed time, this parameter has reflected the performance of solenoid valve intuitively, directly determining the maximum braiding speed of Knitting Machinery, this has just proposed very high request to Knitting Machinery with the production and the detection of high-speed electromagnetic valve.
Produce the enterprise of Knitting Machinery with high-speed electromagnetic valve at present, detection means relatively lags behind, and can only finish the detection of solenoid valve part electromagnetic parameter mostly, can't carry out the detection of dynamic response performance to product at present.Simultaneously, existing both at home and abroad solenoid valve dynamic parameter checkout equipment is primarily aimed at automobile electrical magnet valve, hydraulic control system with solenoid valve etc., does not still have in the market towards the specialized equipment of Knitting Machinery with the high-speed electromagnetic valve dynamic parameter.
Domestic existing Knitting Machinery solenoid valve parameter detection equipment, it mainly detects the electromagnetic parameter that content is a solenoid valve, magnetic induction density at the DC excitation voltage of the cold insulation resistance between cold conditions direct current resistance, coil and the iron core of electromagnetic valve coil, solenoid valve, DC excitation electric current, set a distance place etc. for example can't accurately be measured and to the real-time mapping of electric current, voltage parameter the time parameter of dynamic processes such as the adhesive of solenoid valve, release.
The utility model content
Technical problem to be solved in the utility model provides a kind of system that can test Knitting Machinery with the high-speed electromagnetic valve dynamic parameter, it can accurately measure the parameters such as dynamic response time (comprise actuation time and release time), field copper direct current resistance, field copper static inductance, operation voltage, release voltage, operating current and winding temperature of multiple Knitting Machinery with solenoid valve, thereby provides essential test data for the design and the check of solenoid valve product.
In order to solve above-mentioned technical matters, a kind of Knitting Machinery of the present utility model comprises with the high-speed electromagnetic valve dynamic parameter testing system:
-test board, described test board disposes high speed linear array camera, solenoid valve to be measured and light source, and described high speed linear array camera and valve core of the electromagnetic valve to be measured, light source are coaxial, and solenoid valve to be measured is configured between high speed linear array camera and the light source;
-telemetry circuit plate, described telemetry circuit plate comprises:
(1) control circuit board, it includes and is used for the parallel data grabbing card and the analog measurement interface of communicating by letter with host computer;
(2) measure interface card, comprise the relay array and the driving circuit thereof that solenoid valve to be measured are connected to driving circuit for electromagnetic valve plate or electric parameter measurement circuit board according to control signal;
(3) driving circuit for electromagnetic valve plate, the driving circuit for electromagnetic valve when the dynamic response characteristic test is provided;
(4) electric parameter measurement circuit board is provided for the circuit and the interface of each parameter measurement of solenoid valve;
-host computer, it is a high-performance computer, it comprises and is used for realizing and the telemetry circuit board communications, and finishes the data collecting card that the voltage signal to be measured of telemetry circuit plate output is measured and with being used for the output data of high-speed line scan camera shooting head is carried out synchronous acquisition and storage, had measuring the image pick-up card of interface card synchronous triggering function;
-external power source module comprises that telemetry circuit plate and solenoid valve to be measured provide the power supply of test.
For drive controlling that realizes solenoid valve and the synchronizing signal that produces the dynamic response time measurement, guarantee the accuracy that dynamic response time is measured, described control circuit board is the FPGA control circuit board.
The high speed linear array camera that disposes on the described test board, solenoid valve to be measured and light source are movably arranged on the guide rail, become uniform surface light source in order to make testing light source, also are provided with collimating mirror and frosted glass between solenoid valve to be measured and the light source, and collimating mirror is positioned at the light source limit.
Native system adopts based on the contactless measurement of machine vision and adopts the design of Virtual Instrument method, use multi-purpose computer and data collecting card, the dynamic response time of solenoid valve carried out accurate measurement, for the design and the check of solenoid valve product provides essential test data in conjunction with the hardware test platform of development voluntarily.
The advantage of the utility model system is:
(1) be main control computer with high performance universal microcomputer (PC), the Spartan3 Series FPGA is the next controller, and configuration is the test platform and the telemetry circuit plate of design voluntarily, constitutes a solenoid valve parameter detecting system;
(2) can specify the dynamic response time under the drive condition accurately to measure to solenoid valve to be measured, drive condition can be set arbitrarily in specialized range;
(3) can measure parameters such as solenoid valve field copper direct current resistance to be measured, field copper static inductance, operation voltage, release voltage, operating current and winding temperatures;
(4) applicable to the detection of multiple solenoid valve;
(5) testing result shows in the mode of data sheet and curve intuitively, is convenient to customer analysis research;
(6) all record data and can be kept in the system database rapidly, reliably, can carry out the later stage inquiry and analyze;
(7) system hardware and software is reliable, easy to use.
Description of drawings
Fig. 1 is the utility model test system structure block diagram.
Fig. 2 is a telemetry circuit plate structure block diagram.
Fig. 3 is reed motion process line scanning figure.
Fig. 4 is the reed movement locus figure after handling.
Fig. 5 is a driving circuit for electromagnetic valve.
Fig. 6 is cold conditions direct current resistance measuring principle figure.
Fig. 7 is coil equivalent inductance measuring principle figure.
Fig. 8 is adhesive/release voltage measuring principle block diagram.
Fig. 9 is operating current measuring principle figure.
Embodiment
As shown in Figure 1, 2, the utility model test macro is made up of four parts: test board 1, telemetry circuit plate 2, host computer 3 and external power source module 4.
Test board 1 main body is an optical bench, and having disposed movably, clamping device is used for fixing relevant devices such as high speed linear array camera 5, solenoid valve to be measured 6 and light source 7.High speed linear array camera 5 and solenoid valve 6 spools to be measured, light source 7 are coaxial, and camera 5 is caught the motion images of solenoid valve 6 spools to be measured and used for the host computer analysis.Test board 1 provides measures connection terminal to connect solenoid valve 6 to be measured and telemetry circuit plate 2.
Telemetry circuit plate 2 is the control core with FPGA, has comprised and has measured required interface circuit, driving circuit and parameter measurement circuit, can realize the electric access and the parameter measurement function of solenoid valve 6 to be measured under the control of host computer 3.
Host computer 3 is a high-performance computer, and NI PCI6221 data collecting card and Matrox Solios XCL-B image pick-up card are installed.NI PCI6221 data collecting card has 24 way word I/O passages, 8 road difference analogue amount input channels and 2 tunnel analog output channels, be used to realize the communication interface of host computer 3 and telemetry circuit plate 2, and finish measurement function the voltage signal to be measured of telemetry circuit plate 2 outputs.Matrox Solios XCL-B image pick-up card has the sampling rate of 85MHz, the image buffer storage of 65MB, and has the synchronous triggering function of perfect in shape and function, is used for the output data of high-speed line scan camera shooting head 5 is carried out synchronous acquisition and storage.
External power source module 4 is for telemetry circuit plate 2 and solenoid valve to be measured 6 provide testing power supply.The employed power supply of test macro is made up of three parts:
1, LDC60F-1, have+5V, ± 12V output, rated power 60W is for telemetry circuit plate 2 provides operating voltage;
2, LDA150W-3, single channel 30V, rated power 150W is for solenoid valve 6 dynamic characteristic tests provide driving voltage;
3, GW PSS-3203, single channel 0~32V is adjustable, and rated power 96W is for solenoid valve 6 parameter testings provide driving voltage.
Telemetry circuit plate 2 is made up of four parts:
1. control circuit board 11, are the FPGA control circuit board, comprise a slice Spartan3 XC3S400FPGA, link to each other with PCI-6221 by self-defined parallel data grabbing card, be used to realize communicating by letter of FPGA and host computer 3, and the analog measurement interface is provided.
2. measure interface card 12: mainly form, solenoid valve 6 to be measured is connected to driving circuit for electromagnetic valve plate 13 or electric parameter measurement circuit board 14 according to control signal by relay array and driving circuit thereof.
3. the driving circuit for electromagnetic valve plate 13: solenoid valve 6 driving circuits when the dynamic response characteristic test mainly is provided.
4. the electric parameter measurement circuit board 14: circuit and interface that parameter measurements such as solenoid valve field copper direct current resistance, solenoid valve field copper static inductance, solenoid valve pick-up voltage, solenoid valve release voltage, solenoid valve winding operating current are provided.
FPGA control circuit board and host computer 3 adopt parallel mode to communicate via the PCI6221 data collecting card, and communication bus adopts self defined interface, uses 16 bit data bus, 6 bit address buses, the control of 1 read-write direction, and 1 is data clock.The concrete definition of PCI6221 capture card data bus pins is as shown in table 1:
Table 1PCI6221 capture card data bus pins specifically defines
Self-defining communication protocol is adopted in communicating by letter of FPGA control circuit board and host computer 3, totally 6 classes, 48 control words, and the communication protocol particular content is as shown in table 2:
Table 2 communication protocol
Dynamic response characteristic is measured:
After adding pick-up voltage on solenoid valve 6 coils, owing to exist electromagnet inertia (deriving from the transient process of inductive circuit) and machinery inertial (deriving from the quality of reed) in the system, reed is adhesive immediately, but a time interval will be arranged, this time interval size directly influences the high speed performance of solenoid valve.And the dynamic response time of high-speed electromagnetic valve directly has influence on the raising of braiding speed, stability and the production capacity of Knitting Machinery, therefore, is necessary dynamic response characteristic is carried out quantitative measurment.
Solenoid valve 6 coil electricities make the reed setting in motion to the electromagnetism adhesive, and its corresponding timing definition is contact transfer time tc; The reed setting in motion also arrives the attracted position, and its corresponding time is run duration td, and be tx=tc+td total pickup time; Begin to do released movement from cutting off the power supply to reed and be called contact transfer time tfc during this period of time, and reed from setting in motion to getting back to the off-position, be run duration tfd during this period of time, total tf=tfc+tfd release time.
To the measurement of dynamic response characteristic, main contents are above-mentioned several time parameters (tx of attracting process, the tc of measurement under the driving parameters of appointment, the tf of td or dispose procedure, tfc, tfd), the measuring method of employing then is based on the non-contact measurement of machine vision.
Test board 1 is made up of guide rail 10 and high-speed line scan camera shooting head 5, solenoid valve anchor clamps, light source 7, collimating mirror 9 and the frosted glass 8 that can move on guide rail 10.Light source 7 becomes the background light source of uniform surface light source as solenoid valve 6 to be measured after sending light process collimating mirror 9 and frosted glass 8.High-speed line scan camera shooting head 5 is caught the action message of solenoid valve 6 reeds, handles by transferring to host computer 3 after the video frequency collection card collection.
Host computer 3 has interactive interface, and driving parameters can be set, and sends the measurement sign on; Video frequency collection card is installed in the host computer 3, under the triggering of synchronizing signal high-speed line scan camera shooting head is carried out data acquisition.
The FPGA control circuit board can be provided with test loop according to the configuration parameter that host computer 3 sends, and generates solenoid valve 6 drive signals under host computer 3 instructions, and produces synchronizing signal simultaneously and use for video frequency collection card.
Driving circuit for electromagnetic valve plate 13 comprises 8 way solenoid valve driving circuit and current foldback circuits.Allow to drive 8 way solenoid valves simultaneously, and electromagnetic valve driving current is detected, and have the function of when over-current phenomenon avoidance occurring, closing driving circuit automatically.
High-speed line smear camera 5;
Test board 1 employed camera model is Basler L104K-1K, belongs to high-speed line scan camera shooting head.This type of camera photo-sensitive cell is a line style ccd array, can only carry out 1 dimensional imaging, but have high sweep speed, is mainly used in high speed, the high-precision industrial detection field of requiring.The key technical indexes of Basler L104K-1K is as shown in table 3.
Table 3Basler L104K-1K technical indicator
Parameter Technical indicator
Sensor 1024pixel
Pixel Dimensions 10μm×10μm
Pixel clock 62.5MHz
The max line sweep speed 58.5KHz
The minimum line sweep speed 1KHz
Pixel depth 8bit or 10bit
The method of synchronization Outer synchronous or free-run
Aspect the time measurement precision, the line scan rate of this camera is 58.5KHz to the maximum, so minimum time resolution is 0.017ms, therefore in the measurement of dynamic response time, have very high measuring accuracy, it is 50KHz that the camera line scan rate is set in actual use.
Aspect range measurement accuracy, the pixel size of this camera is 10 μ m * 10 μ m, (0.28~0.4X) uses to cooperate Pentax industrial siding scanning lens YF5028A-035 in actual the use, range observation resolution is less than 10 μ m/0.28=35.7 μ m under the situation of focusing accurately, measurement range has satisfied the measurement demand greater than 10 μ m * 1024/0.4=25.6mm.
The dynamic response characteristic measuring process:
With the example that is measured as of 6 adhesive actuation times of solenoid valve, analyze the measuring process of solenoid valve 6 dynamic characteristic parameters below.When measuring beginning, host computer 3 control PCI-6221 data collecting cards are provided with driving parameters via control bus to the FPGA control panel, and send and measure instruction.The FPGA control panel is after receiving the measurement instruction, promptly produce drive signal control electromagnetic valve driving circuit to solenoid valve to be measured by designated parameter, produce synchronizing signal simultaneously and trigger the Solios-XCL image pick-up card, beginning drive wire scan camera shooting head carries out image acquisition, realize carrying out synchronously of solenoid valve 6 energisings and image acquisition, thereby guaranteed the accuracy of time measurement.High-speed line scan camera shooting head 5 operating state to solenoid valve 6 reeds under constant line scanning rate carries out image acquisition and transfers to host computer 3 by image pick-up card, can judge the time point that the action of solenoid valve 6 reeds puts in place exactly by the appropriate image processing algorithm again, thereby guarantee the accuracy of time measurement.
In solenoid valve 6 reed motion processes, line sweep camera 5 scans continuously, obtains the scan image be made up of a series of scan lines, as shown in Figure 3, black shade is represented the part that is sheltered from by reed on the sweep trace among the figure, and white portion is the illumination part for not blocking then.As seen from the figure, along with the increase of the number of scanning lines, move from left to right gradually black shield portions position, represents reed to move gradually from left to right, and when arriving certain position, the black part is substantially no longer mobile, represents the reed motion to put in place.
Scan image is handled, medium line with shield portions is a benchmark, a width of cloth attracting process movement locus figure who obtains, as shown in Figure 4, horizontal ordinate is a time shaft among the figure, and its resolution is the inverse (the native system line scanning rate is set to 50KHz, so temporal resolution is 1/50KHz=0.02ms) of the line scanning rate of camera; Ordinate is a shift value, has made normalized among the figure, and setting solenoid valve 6 reeds is 0 at the shift value of measuring original position, and the final position shift value after action puts in place is 1.
On movement locus figure,, can extract two turning point A, B on the curve, and calculate corresponding time parameter according to the variation of rate of curve.Obviously, the time from initial point 0 to turning point A is aforesaid contact transfer time tc, is run duration td from the A point to the time that B is ordered, adhesive tx=tc+td actuation time.In addition, can also find out the small bounce-back process after reed puts in place from the trajectory diagram intuitively, also have certain reference role for the optimization of driving parameters.
Driving circuit for electromagnetic valve:
In the design production run, usually need driving circuit for electromagnetic valve is provided with different driving parameters or changes different driving circuits, with the dynamic response characteristic of measuring solenoid valve 6 respectively to estimate the work effect of driving circuit.Therefore, driving circuit for electromagnetic valve plate 13 has adopted the discrete design in measuring system, can under different drive environment, measure by changing driving circuit for electromagnetic valve plate 13, thereby provide reference data the design and the optimization of solenoid valve 6, solenoid valve 6 type of drive to the dynamic perfromance of solenoid valve 6.
Fig. 5 has provided test platform and has tested employed driving circuit at Computerized flat knitting machine with the dynamic response characteristic of needle selection solenoid valve, yarn mouth solenoid valve, triangle solenoid valve, briquetting solenoid valve and half kinking solenoid valve at present, circuit adopts the 30V univoltage to drive, and has optionally two continuous current circuits.Coil cold conditions direct current resistance measuring principle.
Coil cold conditions direct current resistance can reflect the quality of coil winding and coil and internal lead welding technology, can reject because of operational sequences such as riveting, assemblings to cause unacceptable products such as broken string, dry joint accidentally, and be the important parameter that directly reflects the solenoid valve electromagnetic performance.
Metering circuit principle such as Fig. 6, because voltage measurement adopts the data collecting card with high input impedance and high cmrr A/D passage to finish, so metering circuit has adopted relatively type circuit of simple series connection.If during 25 ℃ of environment temperatures, solenoid valve cold conditions direct current resistance to be measured is R, apply test voltage VTEST_R after, solenoid valve to be measured two ends pressure drop is V x, reference resistance R RefThe two ends pressure drop is V Ref, then have:
R = V x V ref * R ref - - - ( 1 )
Coil equivalent inductance measuring principle:
The field coil equivalent inductance also is the important parameter of reflection solenoid valve electromagnetic performance, and the improvement of solenoid valve production technology is had important reference role.
The metering circuit principle as shown in Figure 7, adopting the DDS chip to produce frequency is 1KHz, amplitude is the simple alternating current pumping signal VTEST_L of 0.25V, through the canonical reference resistance R 2With solenoid valve (impedance Z=R to be measured 3+ j ω L 1) back output signal be V OutThen have:
V out = - R 3 + jωL 1 R 2 * VTEST _ L = - | A | e - jθ * VTEST _ L - - - ( 2 )
Wherein, | A | = R 3 2 + 4 π 2 f 2 L 1 2 R 2 - - - ( 3 )
θ = arctan 2 π fL 1 R 3 - - - ( 4 )
Obtain the input and output sinusoidal signal simultaneously by the aanalogvoltage data acquisition, and will export V OutAfter anti-phase, by formula (2) as can be known, output signal V OutBeing with the amplitude ratio of input simple alternating current pumping signal VTEST_L | A|, phase differential then are θ.
Input and output signal is gathered with the sampling rate of 100KSps by data collecting card PCI6221, every passage is gathered 4096 points, adopts the Fourier spectrum analytic approach to ask then | A| and θ.Concrete grammar is: two paths of signals is made 4096 FFT respectively, calculate the ratio of fundamental component value in the two signal amplitude versus frequency charactes, the result is | the value of A|; Calculate the phase differential of fundamental component in the phase-frequency characteristic, and be adjusted to ± 180 ° of scopes in, be phase differential θ. will | value substitution formula (3) and (4) of A| and θ can get the equivalent inductance of solenoid valve to be measured:
L = R 2 | A | 2 πf 1 + 1 tan 2 θ - - - ( 5 )
Adhesive/release voltage measuring principle:
The method of testing of reference section relay product is defined as follows adhesive, the release voltage of solenoid valve 6:
Pick-up voltage: the minimal coil voltage that under release conditions, can guarantee solenoid valve 6 adhesives;
Be lower than pick-up voltage, solenoid valve 6 can't produce the adhesive action;
Release voltage: under attracting state, guarantee the maximum coil voltage that solenoid valve 6 discharges;
Be higher than release voltage, solenoid valve 6 will continue to keep attracting state.
Test voltage required during measurement is supplied with by numerical control direct supply PSS-3203, and the minimum step value can reach 0.01V, output voltage range 0-32V, electric current 0-3A.In the process of test voltage increasing or decreasing, realize the motion detection of solenoid valve by the shooting of line sweep camera, judge promptly whether solenoid valve 6 reeds move, thereby obtain two voltage parameter values to be measured.The measuring principle block diagram as shown in Figure 8.
The operating current measuring principle:
Electric current change curve in solenoid valve 6 courses of work can reflect the manufacture craft quality of solenoid valve current-carrying part, also is to analyze its serviceability, improves the important references of manufacture craft.
It is to measure the I-t curve of solenoid valve 6 coil currents to be measured under the direct drive mode that operating current is measured the method that adopts.Measuring principle as shown in Figure 9, the numerical control direct supply is used for setting driving voltage, operating current is sampled by the sampling resistor Rs that connects with solenoid valve 6 to be measured, calculates size of current by the pressure drop Vs that measures the sampling resistor two ends.Because part solenoid valve 6 to be measured does not allow long-time direct current energising, therefore increased power MOS pipe Q1 the "on" position of solenoid valve to be measured is controlled, the high level lasting time that drive signal is set by FPGA can accurately be controlled the conduction time of solenoid valve to be measured.
The temperature measurement principle:
Temperature measurement is mainly used in measures the temperature variations of solenoid valve 6 coils after working long hours.
The solenoid temperature rise of insulation course is arranged, generally use resistance measurement, average temperature rising can calculate by formula (6):
τ pj = R 2 - R 1 R 1 ( 1 α + Q 01 ) + ( Q 01 - Q 02 ) - - - ( 6 )
Formula (6) can be rewritten into:
τ pj = ( R 2 R 1 - 1 ) ( 1 α + Q 01 ) + ( Q 01 - Q 02 ) - - - ( 7 )
τ in the formula PjFor by the average temperature rising of test coil, Q 01And Q 02For by test coil cold-state resistance R 1With hot resistance R 2Ambient air temperature, the temperature-coefficient of electrical resistance of measured resistance coil-conductor material when α is 0 ℃ (is 1/234.5 to red copper).By formula (7) as seen, only need record thermal resistance R 2With cold resistance R 1Ratio (non-absolute resistance), environment temperature Q 01And Q 02, can calculate average temperature rising τ Pj
The foregoing description limits the utility model never in any form, and every employing is equal to replaces or technical scheme that the mode of equivalent transformation obtains all drops in the protection domain of the present utility model.

Claims (3)

1. Knitting Machinery high-speed electromagnetic valve dynamic parameter testing system is characterized in that comprising:
-test board (1), described test board disposes high speed linear array camera (5), solenoid valve to be measured (6) and light source (7), described high speed linear array camera (5) and solenoid valve to be measured (6) spool, light source (7) are coaxial, and solenoid valve to be measured (6) is configured between high speed linear array camera (5) and the light source (7);
-telemetry circuit plate (2), described telemetry circuit plate (2) comprising:
(1) control circuit board (11), it includes and is used for the parallel data grabbing card and the analog measurement interface of communicating by letter with host computer;
(2) measure interface card (12), comprise the relay array and the driving circuit thereof that solenoid valve to be measured (6) are connected to driving circuit for electromagnetic valve plate (13) or electric parameter measurement circuit board (14) according to control signal;
(3) driving circuit for electromagnetic valve plate (13), solenoid valve (6) driving circuit when the dynamic response characteristic test is provided;
(4) electric parameter measurement circuit board (14) is provided for the circuit and the interface of each parameter measurement of solenoid valve (6);
-host computer (3), it is a high-performance computer, it comprises and is used for realizing communicating by letter with telemetry circuit plate (2), and finishes the data collecting card that the voltage signal to be measured of telemetry circuit plate (2) output is measured and with being used for the output data of high-speed line scan camera shooting head (5) is carried out synchronous acquisition and storage, had measuring the image pick-up card of interface card (12) synchronous triggering function;
-external power source module (4) comprises that telemetry circuit plate (2) and solenoid valve to be measured (6) provide the power supply of test.
2. Knitting Machinery high-speed electromagnetic valve dynamic parameter testing system according to claim 1 is characterized in that: described control circuit board (11) is the FPGA control circuit board.
3. Knitting Machinery high-speed electromagnetic valve dynamic parameter testing system according to claim 1, it is characterized in that: high speed linear array camera (5), solenoid valve to be measured (6) and light source (7) that described test board (1) is gone up configuration are movably arranged on the guide rail (10), also be provided with collimating mirror (9) and frosted glass (8) between solenoid valve to be measured (6) and the light source (7), collimating mirror (9) is positioned at light source (7) limit.
CN2010206682887U 2010-12-20 2010-12-20 Dynamic parameter test system of high speed solenoid valve for knitting machine CN201955448U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102621488A (en) * 2012-04-17 2012-08-01 哈尔滨工业大学 System and method for testing storage performance of aerospace electromagnetic relay
CN102033199B (en) * 2010-12-20 2013-01-23 常熟理工学院 System for testing dynamic parameter of high-speed electromagnetic valve for knitting machine
CN103852645A (en) * 2014-03-10 2014-06-11 芜湖精诺汽车电器有限公司 Detection device for electric control box
CN104034518A (en) * 2013-03-06 2014-09-10 哈米尔顿森德斯特兰德公司 In Situ Flap And Slat Wing Tip Brake Response Tester
CN105572580A (en) * 2016-02-26 2016-05-11 浪潮软件集团有限公司 Method and system for testing solenoid valve response characteristics

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102033199B (en) * 2010-12-20 2013-01-23 常熟理工学院 System for testing dynamic parameter of high-speed electromagnetic valve for knitting machine
CN102621488A (en) * 2012-04-17 2012-08-01 哈尔滨工业大学 System and method for testing storage performance of aerospace electromagnetic relay
CN104034518A (en) * 2013-03-06 2014-09-10 哈米尔顿森德斯特兰德公司 In Situ Flap And Slat Wing Tip Brake Response Tester
CN104034518B (en) * 2013-03-06 2017-11-17 哈米尔顿森德斯特兰德公司 Wing flap in situ and slat wingtip brake response test instrument
CN103852645A (en) * 2014-03-10 2014-06-11 芜湖精诺汽车电器有限公司 Detection device for electric control box
CN105572580A (en) * 2016-02-26 2016-05-11 浪潮软件集团有限公司 Method and system for testing solenoid valve response characteristics

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