CN108196125A - High-speed electromagnetic valve performance parameter testing device and method - Google Patents
High-speed electromagnetic valve performance parameter testing device and method Download PDFInfo
- Publication number
- CN108196125A CN108196125A CN201810081944.4A CN201810081944A CN108196125A CN 108196125 A CN108196125 A CN 108196125A CN 201810081944 A CN201810081944 A CN 201810081944A CN 108196125 A CN108196125 A CN 108196125A
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- module
- solenoid valve
- measured
- control machine
- test
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/025—Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/26—Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants ; Measuring impedance or related variables
- G01R27/2611—Measuring inductance
Abstract
High-speed electromagnetic valve performance parameter testing device proposed by the present invention and method, solenoid valve to be measured is placed on by positioning component in support component, suction transmitting assembly upper end passes through support component to form magnetic force induction area with solenoid valve to be measured, lower end is connect with force snesor, force snesor is fixed in rack, middle control machine in rack is connect with electronic control module by cable and electronic control module is controlled to test magnetic valve performance parameter to be measured, middle control machine connect to control cylinder assembly that pressure head component is pushed to slide along guide assembly with cylinder assembly, the binding post of the pressure head component other end and solenoid valve to be measured can touch connect；Control machine realizes the control to electronic control module and cylinder assembly during the present invention utilizes, it is realized under different conditions by establishing testing process, different performance automatically testing parameters, realizing high-speed electromagnetic valve, quick and precisely mass is tested, effectively prevent high cost that repeated clamping brings and time-consuming problem, error caused by avoiding human factor, has saved human cost.
Description
Technical field
The present invention relates to a kind of test device and method, especially a kind of high-speed electromagnetic valve performance parameter testing device and side
Method belongs to solenoid valve technical field of measurement and test.
Background technology
High-speed electromagnetic valve is the critical component of diesel electric-controlled common rail system, inductance, resistance and the static state of high-speed electromagnetic valve
Suction is the important parameter for influencing magnetic valve performance, and the measuring instrument of high-speed electromagnetic valve inductive resistance has Hewlett-Packard at present
Inductive resistance tester, static suction measurement instrument have Shanghai to found air gap-suction measurement device of new company and Xi'an Kaitian
Electromagnet suction air gap relation test instrument etc., be to measure different performance parameters respectively using different devices, exist as
Lower shortcoming：
1st, current solution is only capable of carrying out independent measurement to individual event parameter, and a performance parameter is replaced again after being measured
Device carries out the measurement of another performance parameter, needs repeated clamping, of high cost, time-consuming and efficiency is low, it is difficult to meet diesel oil
The needs that Electrical Control common rail system production scene is quickly detected；
2nd, current solution uses manual repeated clamping part, the mode of manually recorded measurement result, it may appear that due to dress
Press from both sides improper or manually recorded improper and to generate measurement result wrong, the phenomenon that so as to judge by accident.
Invention content
The shortcomings that it is an object of the invention to overcome the prior art, provides a kind of high-speed electromagnetic valve performance parameter testing device
And method, the present invention is by means of test device, to the inductance under high-speed electromagnetic valve normality, the air gap electricity under resistance and use state
Sense, air gap static state suction are tested, and are established testing process using control host, are matched by mechanical part and electric control part
It closes, realizes the fast and accurately test of magnetic valve performance parameter.
For realization more than technical purpose, the technical scheme is that：High-speed electromagnetic valve performance parameter testing device, including
Solenoid valve to be measured, it is characterized in that：The solenoid valve to be measured is placed on by positioning component in support component, the suction transmission group
Part upper end passes through support component to form magnetic force induction area with solenoid valve to be measured, and lower end is connect with force snesor, the force snesor
It is fixed in rack, electronic control module and middle control machine is additionally provided in the rack, the middle control machine is connected by cable and electronic control module
It connects and electronic control module is controlled to test the performance parameter of solenoid valve to be measured, the middle control machine connect to control with cylinder assembly
Cylinder assembly processed pushes pressure head component movement, and one end and the guide assembly of the pressure head component are slidably connected, the pressure head component
The other end and the binding post of solenoid valve to be measured can touch connect.
Further, current feedback circuit module, inductive resistance test module, insulation resistance are integrated in the electronic control module
Test module and static force parametric testing module, the middle control machine driving inductive resistance test module test normality inductive resistance and
Band air gap inductance resistance, the middle control machine drive megger test module testing normality insulation resistance and with air-gap insulation electricity
Resistance, the middle control machine obtain static force by current feedback circuit module, force snesor and static force parametric testing module.
Further, the middle control machine further includes data acquisition module, and the middle control machine is acquired automatically controlled by acquisition module
The performance parameter test data of module testing.
Further, high-precision air gap adjustment plate is equipped in the support component, the solenoid valve to be measured is high by replacing
Precision air gap adjustment plate changes working condition.
Further, the guide assembly is fixed on the side wall of rack, and described be slidably connected refers to pressure head component side
Equipped with external part, the end of the external part is equipped with sliding block, and guide assembly is equipped with sliding rail, the pressure head component by sliding block along
Sliding rail slides.
Further to realize more than technical purpose, the invention also provides high-speed electromagnetic valve performance parameter test method,
It is characterized in that the test method step is as follows：
Under step 1 normalities, solenoid valve to be measured is chosen, and solenoid valve to be measured is placed in by positioning component in support component；
Step 2 by it is middle control the entire test device of machine testing connection, set test parameter as normality inductive resistance,
Normality insulation resistance, band air gap inductance resistance, band air-gap insulation resistance and static force, establish testing process；
In step 3 control machine control cylinder assembly push pressure head component moved down along guide assembly, and with the wiring of solenoid valve to be measured
Column connects；
Step 4 measures normality inductive resistance：The inductive resistance test module test of the middle control machine driving electronic control module is to be measured
The normality inductive resistance of solenoid valve, and test result is sent to middle control machine, it is stored into database；
Step 5 measures normality insulation resistance：The megger test module testing of the middle control machine driving electronic control module is to be measured
The normality insulation resistance of solenoid valve, and test result is sent to middle control machine, it is stored into database；
In step 6 control machine control cylinder assembly push pressure head component moved up along guide assembly, and with the wiring of solenoid valve to be measured
Column disconnects, and replaces the high-precision air gap adjustment plate in support component, ensures that support component is vertical with suction transmitting assembly；
In step 7 control machine control again cylinder assembly push pressure head component moved down along guide assembly, and with solenoid valve to be measured
Binding post connects；
Step 8 measures band air gap inductance resistance：The inductive resistance test module test of the middle control machine driving electronic control module is treated
The band air gap inductance resistance of solenoid valve is surveyed, and test result is sent to middle control machine, is stored into database；
Step 9 measures band air-gap insulation resistance：The megger test module testing of the middle control machine driving electronic control module is treated
The band air-gap insulation resistance of solenoid valve is surveyed, and test result is sent to middle control machine, is stored into database；
Step 10 measures static force：The current feedback circuit module output pulsed drive electricity of the middle control machine driving electronic control module
Stream, and solenoid valve to be measured is acted on, solenoid valve to be measured is made to generate suction, the force snesor is detected by suction transmitting assembly to be inhaled
Power, and suction is converted into voltage signal and passes to static force parametric testing module, the static force parametric testing module will connect
The voltage signal received is sent to middle control machine after being handled；
Machine control cylinder assembly is controlled in step 11 pushes pressure head component to be moved up along guide assembly, and connect with solenoid valve to be measured
Terminal disconnects, and test terminates.
Further, in the step 10 force snesor generate be digital voltage signal, the static force parameter testing
Module is amplified after the digital voltage signal received is converted by D/A, rectifying and wave-filtering processing, and will treated simulation
Voltage signal is uploaded to middle control machine, and the middle control machine is bent according to the static force that the analog voltage signal generation electric current received drives
Line.
Further, the current feedback circuit module in the step 10 continuously exports pulsed drive current, and acting on twice
In solenoid valve to be measured.
From the above, it can be seen that the beneficial effects of the present invention are：
1）Detection device of the invention is easy to operate, uses simple, detection parameters data correctness height；
2）The detection device can be realized to after high-speed electromagnetic valve clamped one time, by quick-replaceable air gap adjusting device, automatically according to
The secondary normality inductive resistance, normality insulation resistance, quick with air gap inductance resistance, with air-gap insulation resistance and static suction completed
It measures, and automatically saves measurement data, avoid error caused by human factor；
3）Compared with existing test device, the performance parameter of the device to test solenoid valve is fast and convenient, detection time shorten by
Nearly 50%, detection efficiency increases substantially.
Description of the drawings
Fig. 1 is the structure diagram of the entire test device of the present invention.
Fig. 2 is test method flow chart of the present invention.
Description of the drawings：It is to be measured that machine, 3- cylinder assemblies, 4- pressure head components, 5- guide assemblies, 6- are controlled in 1- electronic control modules, 2-
Solenoid valve, 7- positioning components, 8- support components, 9- suction transmitting assembly, 10- force snesors, 11- racks.
Specific embodiment
With reference to specific drawings and examples, the invention will be further described.
With reference to the accompanying drawings described in 1, high-speed electromagnetic valve performance parameter testing device, including solenoid valve 6 to be measured, it is characterized in that：Institute
It states solenoid valve 6 to be measured to be placed in support component 8 by positioning component 7, high-precision air gap is equipped in the support component 8 and is adjusted
Plate, the solenoid valve 6 to be measured change working condition, 9 upper end of suction transmitting assembly by replacing high-precision air gap adjustment plate
Magnetic force induction area is formed across support component 8 and solenoid valve 6 to be measured, lower end is connect with force snesor 10, the force snesor 10
Be fixed in rack 11, be additionally provided with electronic control module 1 and middle control machine 2 in the rack 11, the middle control machine 2 by cable with it is automatically controlled
Module 1 connects and electronic control module 1 is controlled to test the performance parameter of solenoid valve 6 to be measured, the middle control machine 2 and cylinder assembly
For controlling cylinder assembly 3 that pressure head component 4 is pushed to move, one end of the pressure head component 4 is slided with guide assembly 5 to be connected for 3 connections
It connecing, the guide assembly 5 is fixed on the side wall of rack 11, and described be slidably connected refers to that 4 side of pressure head component is equipped with external part,
The end of the external part is equipped with sliding block, and guide assembly 5 is equipped with sliding rail, and the pressure head component 4 is slided by sliding block along sliding rail,
The binding post of the other end of the pressure head component 4 and solenoid valve 6 to be measured can touch connect.
Current feedback circuit module, inductive resistance test module, megger test module are integrated in the electronic control module 1
With static force parametric testing module, the middle control machine 2 drives inductive resistance test module test normality inductive resistance and with air gap
Inductive resistance, the middle control machine 2 drives megger test module testing normality insulation resistance and with air-gap insulation resistance, described
Middle control machine 2 obtains static force by current feedback circuit module, force snesor 10 and static force parametric testing module；The middle control machine
2 further include data acquisition module, and the middle control machine 2 acquires the performance parameter test number of the test of electronic control module 1 by acquisition module
According to.
With reference to the accompanying drawings described in 2, high-speed electromagnetic valve performance parameter test method, it is characterized in that, the test method step is such as
Under：
Under step 1 normalities, solenoid valve 6 to be measured is chosen, and solenoid valve 6 to be measured is placed in support component 8 by positioning component 7
On；
Step 2 detects the connection of entire test device by middle control machine 2, set test parameter as normality inductive resistance,
Normality insulation resistance, band air gap inductance resistance, band air-gap insulation resistance and static force, establish testing process；
In step 3 control machine 2 control cylinder assembly 3 push pressure head component 4 moved down along guide assembly 5, and with solenoid valve 6 to be measured
Binding post connection；
Step 4 measures normality inductive resistance：The middle control machine 2 drives the inductive resistance test module test of electronic control module 1 to treat
The normality inductive resistance of solenoid valve 6 is surveyed, and test result is sent to middle control machine 2, is stored into database；
Step 5 measures normality insulation resistance：The middle control machine 2 drives the megger test module testing of electronic control module 1 to treat
The normality insulation resistance of solenoid valve 6 is surveyed, and test result is sent to middle control machine 2, is stored into database；
In step 6 control machine 2 control cylinder assembly 3 push pressure head component 4 moved up along guide assembly 5, and with solenoid valve 6 to be measured
Binding post disconnect, replace the high-precision air gap adjustment plate in support component 8, ensure that support component 8 and suction transmitting assembly 9 hang down
Directly；
In step 7 control machine 2 control again cylinder assembly 3 promotion pressure head component 4 moved down along guide assembly 5, and with electromagnetism to be measured
The binding post connection of valve 6；
Step 8 measures band air gap inductance resistance：The middle control machine 2 drives the inductive resistance test module test of electronic control module 1
The band air gap inductance resistance of solenoid valve 6 to be measured, and test result is sent to middle control machine 2, it is stored into database；
Step 9 measures band air-gap insulation resistance：The middle control machine 2 drives the megger test module testing of electronic control module 1
The band air-gap insulation resistance of solenoid valve 6 to be measured, and test result is sent to middle control machine 2, it is stored into database；
Step 10 measures static force：The middle control machine 2 drives the current feedback circuit module output pulsed drive electricity of electronic control module 1
Stream, current feedback circuit module continuously export pulsed drive current twice, act on solenoid valve 6 to be measured, generate solenoid valve 6 to be measured
Suction, the force snesor 10 detects suction by suction transmitting assembly 9, and suction is converted into voltage signal and passes to static state
Force parameter test module, the static force parametric testing module are sent to middle control machine after the voltage signal received is handled
2；
What the force snesor 10 generated is digital voltage signal, the number electricity that the static force parametric testing module will receive
Pressure signal is amplified after being converted by D/A, rectifying and wave-filtering processing, and analog voltage signal is uploaded to middle control machine by treated
2, the analog voltage signal received is generated the static force curve under electric current driving by the middle control machine 2 by system software.
In step 11 control machine 2 control cylinder assembly 3 push pressure head component 4 moved up along guide assembly 5, and with electricity to be measured
The binding post of magnet valve 6 disconnects, and test terminates.
Control machine 2 is realized to current feedback circuit module integrated in electronic control module 1, inductive resistance test mould during the present invention utilizes
The control of block, megger test module, static force parametric testing module and cylinder assembly 3, the foundation for passing through testing process are real
Show under different conditions, the automatic quick test of different performance parameter, the high-speed electromagnetic valve performance parameter test for passing through the present invention fills
It puts and method can realize that high-speed electromagnetic valve fast and accurately test by mass, effectively prevents the high cost that repeated clamping is brought
With the shortcomings that time-consuming, while loss caused by human factor is avoided, personnel cost is greatly saved.
Above to the present invention and embodiments thereof be described, this describe it is no restricted, it is attached it is shown in figure also only
It is one of embodiments of the present invention, practical structure is not limited thereto.All in all if the ordinary skill people of this field
Member is enlightened by it, without departing from the spirit of the invention, is not inventively designed similar to the technical solution
Frame mode and embodiment, be within the scope of protection of the invention.
Claims (8)
1. high-speed electromagnetic valve performance parameter testing device, including solenoid valve to be measured（6）, it is characterized in that：The solenoid valve to be measured（6）
Pass through positioning component（7）It is placed on support component（8）On；The suction transmitting assembly（9）Upper end passes through support component（8）With treating
Survey solenoid valve（6）Form magnetic force induction area, lower end and force snesor（10）Connection；The force snesor（10）It is fixed on rack
（11）On, the rack（11）On be additionally provided with electronic control module（1）With middle control machine（2）, the middle control machine（2）By cable with it is automatically controlled
Module（1）Connection and control electronic control module（1）To solenoid valve to be measured（6）Performance parameter tested, the middle control machine（2）With
Cylinder assembly（3）It connects to control cylinder assembly（3）Push pressure head component（4）Movement, the pressure head component（4）One end with
Guide assembly（5）It is slidably connected, the pressure head component（4）The other end and solenoid valve to be measured（6）Binding post can touch connection.
2. high-speed electromagnetic valve performance parameter testing device according to claim 1, it is characterised in that：The electronic control module
（1）Inside it is integrated with current feedback circuit module, inductive resistance test module, megger test module and static force parameter testing mould
Block, the middle control machine（2）Drive inductive resistance test module test normality inductive resistance and with air gap inductance resistance, the middle control
Machine（2）Drive megger test module testing normality insulation resistance and with air-gap insulation resistance, the middle control machine（2）Pass through electricity
Streamer module, force snesor（10）Static force is obtained with static force parametric testing module.
3. high-speed electromagnetic valve performance parameter testing device according to claim 1, it is characterised in that：The middle control machine（2）
Further include data acquisition module, the middle control machine（2）Pass through data collecting module collected electronic control module（1）The performance parameter of test
Test data.
4. high-speed electromagnetic valve performance parameter testing device according to claim 1, it is characterised in that：The support component
（8）It is interior to be equipped with high-precision air gap adjustment plate, the solenoid valve to be measured（6）Change work shape by replacing high-precision air gap adjustment plate
State.
5. high-speed electromagnetic valve performance parameter testing device according to claim 1, it is characterised in that：The guide assembly
（5）It is fixed on rack（11）Side wall on, described be slidably connected refers to pressure head component（4）Side is equipped with external part, the stretching
The end at end is equipped with sliding block, guide assembly（5）Equipped with sliding rail, the pressure head component（4）It is slided by sliding block along sliding rail.
6. high-speed electromagnetic valve performance parameter test method, it is characterized in that, the test method step is as follows：
Under step 1 normalities, solenoid valve to be measured is chosen（6）, and by solenoid valve to be measured（6）Pass through positioning component（7）It is placed in support
Component（8）On；
Step 2 passes through middle control machine（2）The connection of entire test device is detected, sets test parameter as normality inductance electricity
Resistance, normality insulation resistance, band air gap inductance resistance, band air-gap insulation resistance and static force, establish testing process；
Machine is controlled in step 3（2）Control cylinder assembly（3）Push pressure head component（4）Along guide assembly（5）Move down, and with it is to be measured
Solenoid valve（6）Binding post connection；
Step 4 measures normality inductive resistance：The middle control machine（2）Drive electronic control module（1）Inductive resistance test module survey
Try solenoid valve to be measured（6）Normality inductive resistance, and test result is sent to middle control machine（2）, it is stored into database；
Step 5 measures normality insulation resistance：The middle control machine（2）Drive electronic control module（1）Megger test module survey
Try solenoid valve to be measured（6）Normality insulation resistance, and test result is sent to middle control machine（2）, it is stored into database；
Machine is controlled in step 6（2）Control cylinder assembly（3）Push pressure head component（4）Along guide assembly（5）Move up, and with it is to be measured
Solenoid valve（6）Binding post disconnect, replace support component（8）In high-precision air gap adjustment plate, ensure support component（8）With suction
Force transfer unit（9）Vertically；
Machine is controlled in step 7（2）Cylinder assembly is controlled again（3）Push pressure head component（4）Along guide assembly（5）It moves down, and with
Solenoid valve to be measured（6）Binding post connection；
Step 8 measures band air gap inductance resistance：The middle control machine（2）Drive electronic control module（1）Inductive resistance test module
Test solenoid valve to be measured（6）Band air gap inductance resistance, and test result is sent to middle control machine（2）, it is stored into database；
Step 9 measures band air-gap insulation resistance：The middle control machine（2）Drive electronic control module（1）Megger test module
Test solenoid valve to be measured（6）Band air-gap insulation resistance, and test result is sent to middle control machine（2）, it is stored into database；
Step 10 measures static force：The middle control machine（2）Drive electronic control module（1）Current feedback circuit module output pulse drive
Streaming current, and act on solenoid valve to be measured（6）, make solenoid valve to be measured（6）Generate suction, the force snesor（10）Pass through suction
Transmitting assembly（9）Suction is detected, and suction is converted into voltage signal and passes to static force parametric testing module（15）, it is described quiet
State force parameter test module is sent to middle control machine after the voltage signal received is handled（2）；
Machine is controlled in step 11（2）Control cylinder assembly（3）Push pressure head component（4）Along guide assembly（5）It moves up, and with treating
Survey solenoid valve（6）Binding post disconnect, test terminates.
7. high-speed electromagnetic valve performance parameter test method according to claim 6, it is characterized in that, power passes in the step 10
Sensor（10）Generation is digital voltage signal, and the static force parametric testing module passes through the digital voltage signal received
It is amplified after D/A conversions, rectifying and wave-filtering processing, and analog voltage signal is uploaded to middle control machine by treated（2）, in described
Control machine（2）The static force curve that analog voltage signal generation electric current according to receiving drives.
8. high-speed electromagnetic valve performance parameter test method according to claim 6, it is characterized in that, the electricity in the step 10
Streamer module continuously exports pulsed drive current, and act on solenoid valve to be measured twice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081944.4A CN108196125A (en) | 2018-01-29 | 2018-01-29 | High-speed electromagnetic valve performance parameter testing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081944.4A CN108196125A (en) | 2018-01-29 | 2018-01-29 | High-speed electromagnetic valve performance parameter testing device and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108196125A true CN108196125A (en) | 2018-06-22 |
Family
ID=62591627
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810081944.4A Pending CN108196125A (en) | 2018-01-29 | 2018-01-29 | High-speed electromagnetic valve performance parameter testing device and method |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213670A (en) * | 2020-10-13 | 2021-01-12 | 哈尔滨工业大学 | Device for testing magnetization performance of soft magnetic material of electromagnetic system and testing method based on device |
| CN115016566A (en) * | 2022-06-15 | 2022-09-06 | 深圳市瑞驰信息技术有限公司 | Circuit board heating control system and method and electronic equipment |
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| CN102854425A (en) * | 2012-09-29 | 2013-01-02 | 北京博润宏达科技发展有限公司 | High-speed electromagnetic valve performance detection system |
| CN104458066A (en) * | 2014-12-03 | 2015-03-25 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Switching-type electromagnet dynamic attraction force testing system |
| CN105334477A (en) * | 2015-11-04 | 2016-02-17 | 中国北方发动机研究所(天津) | High-speed solenoid valve electromagnetic force static and dynamic testing apparatus |
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2018
- 2018-01-29 CN CN201810081944.4A patent/CN108196125A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102854425A (en) * | 2012-09-29 | 2013-01-02 | 北京博润宏达科技发展有限公司 | High-speed electromagnetic valve performance detection system |
| CN104458066A (en) * | 2014-12-03 | 2015-03-25 | 中国第一汽车股份有限公司无锡油泵油嘴研究所 | Switching-type electromagnet dynamic attraction force testing system |
| CN105334477A (en) * | 2015-11-04 | 2016-02-17 | 中国北方发动机研究所(天津) | High-speed solenoid valve electromagnetic force static and dynamic testing apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213670A (en) * | 2020-10-13 | 2021-01-12 | 哈尔滨工业大学 | Device for testing magnetization performance of soft magnetic material of electromagnetic system and testing method based on device |
| CN112213670B (en) * | 2020-10-13 | 2024-03-05 | 哈尔滨工业大学 | Device and method for testing magnetization performance of soft magnetic material of electromagnetic system |
| CN115016566A (en) * | 2022-06-15 | 2022-09-06 | 深圳市瑞驰信息技术有限公司 | Circuit board heating control system and method and electronic equipment |
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Application publication date: 20180622 |