CN205483517U - It shows servovalve static performance tester to have characteristic curve and performance parameter - Google Patents
It shows servovalve static performance tester to have characteristic curve and performance parameter Download PDFInfo
- Publication number
- CN205483517U CN205483517U CN201620041090.3U CN201620041090U CN205483517U CN 205483517 U CN205483517 U CN 205483517U CN 201620041090 U CN201620041090 U CN 201620041090U CN 205483517 U CN205483517 U CN 205483517U
- Authority
- CN
- China
- Prior art keywords
- servo valve
- module
- characteristic curve
- processor
- performance parameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model relates to an it shows servovalve static performance tester to have characteristic curve and performance parameter, including treater and the digital input module of being connected with the treater, touch -sensitive screen, analog input module, servovalve drive circuit and solenoid valve drive circuit, be provided with IO module and AD conversion module on the treater, the IO module is passed through the digital input module and is connected with the touch -sensitive screen, AD conversion module and analog input module are connected, analog input module is connected with the sensor of gathering servo valve flow signal and pressure signal. The utility model discloses satisfy multiple electro hydraulic servo valve's static performance test, improve the servovalve measuring accuracy, effectively reduced the cost of servovalve tester, improved efficiency of software testing.
Description
Technical field
This utility model relates to electrohydraulic servo valve technical field of measurement and test, more particularly, it relates to one has spy
Linearity curve and performance parameter display servo valve static properties tester.
Background technology
Electrohydraulic servo valve is the critical component in electrohydraulic servo system, compared with other Hydraulic Elements, to its property
The technology of energy requires more strict, and its performance indications need to reach the technical specification of regulation.Electrohydraulic servo valve is quiet
Step response curve includes rating curve, pressure characteristic and interior leakage characteristic curve；Electrohydraulic servo valve
Static properties parameter include metered flow, flow gain, the linearity, stagnant ring, resolution, symmetry,
Pressure gain, inclined, the amount of leakage of pressure zero etc..
The static characteristic method of testing of traditional electrohydraulic servo valve is to draw various static state by XY monitor
Characteristic curve, obtains static properties parameter by manual analysis.This method has that precision is low, efficiency is low,
The shortcomings such as poor repeatability.
Along with the development of computer, occur in that and carry out data acquisition and display curve with computer, calculate parameter
Method, this method need increase the equipment such as computer and data collecting card, add servo valve static state survey
The cost of test system, it is also proposed higher requirement to the space of test system.
Summary of the invention
The technical problems to be solved in the utility model is, it is provided that one has characteristic curve and performance parameter shows
Show servo valve static properties tester.
This utility model solves its technical problem and be the technical scheme is that structure one has characteristic curve
Servo valve static properties tester is shown with performance parameter, defeated including processor and the numeral being connected with processor
Enter module, touch screen, Analog input mModule, driving circuit of servo valve and driving circuit for electromagnetic valve, described
Be provided with I/O module and AD conversion module on processor, described I/O module by digital input module with
Touch screen connects, and described AD conversion module is connected with Analog input mModule, described Analog input mModule
It is connected with the sensor gathering servo valve flow signal and pressure signal.
In such scheme, it is provided with the logical signal by processor exports in described driving circuit for electromagnetic valve and is converted to
The relay of 0 or 24V voltage control signal.
In such scheme, in described driving circuit of servo valve, it is provided with AD conversion chip and operational amplifier,
AD conversion chip and operational amplifier connect, and described AD conversion chip and operational amplifier are defeated by processor
The low frequency command signal gone out is converted to current controling signal.
In such scheme, described current controling signal scope is-300mA～300mA.
In such scheme, described processor is provided with XY monitor interface.
In such scheme, described processor is provided with RS232 communication interface.
Implement of the present utility model have characteristic curve and performance parameter display servo valve static properties tester,
Have the advantages that
The control of electrohydraulic servo valve, characteristic curve and performance parameter are calculated and display one by this utility model
Change, meet the static properties test of multiple electrohydraulic servo valve, improve servo valve measuring accuracy, effectively reduce
The cost of servo valve tester, improves testing efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is that this utility model has characteristic curve and performance parameter display servo valve static properties tester
Schematic diagram；
Fig. 2 is driving circuit for electromagnetic valve schematic diagram；
Fig. 3 is driving circuit of servo valve schematic diagram.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now compare attached
Figure describes detailed description of the invention of the present utility model in detail.
As shown in Figure 1-Figure 3, of the present utility model have characteristic curve and performance parameter display servo valve quiet
State ability meter include processor 1, digital input module 2, Analog input mModule 3, touch screen 6,
Driving circuit of servo valve 4 and driving circuit for electromagnetic valve 5.
In the present embodiment, the model of processor 1 is TMS320F28335, and operating frequency reaches 150MHz,
For the control of this static tester for servo valve, data acquisition, curve plotting, parameter are calculated.Processor
I/O module and AD conversion module it is provided with on 1.I/O module is by digital input module 2 and touch screen 6
Connect.In the present embodiment, touch screen 6 shows touch screen for LCD, and model is DC80480B070_03TW.
Touch screen 6 is possible not only to show characteristic curve and the performance parameter of electrohydraulic servo valve, it is also possible to tactile by arranging
Touch screen to operate static tester for servo valve.AD conversion module is connected with Analog input mModule 3, simulation
Amount input module 3 is connected with sensor, sensor acquisition servo valve flow signal and pressure signal.AD turns
Die change block by sensor acquisition to analogue signal be converted into digital signal.
It is provided with relay in driving circuit for electromagnetic valve 5.Processor 1 output controls the logic letter of four-way solenoid valve
Number, it is converted into the solenoid valve control signal of 0 or 24V through relay, and every road maximum output current is
500mA。
AD conversion chip and operational amplifier it is provided with in driving circuit of servo valve 4.AD conversion chip and fortune
Calculation amplifier connects, and the low frequency command signal that processor 1 is exported by AD conversion chip and operational amplifier turns
It is changed to current controling signal.The model of the AD conversion chip in the present embodiment is AD5725 digital-to-analogue conversion core
Sheet, the model of operational amplifier is LF353 and OPA547T.Processor 1 is turned by AD5725 digital-to-analogue
Change chip output servo valve control signal, process and the power amplification of OPA547T through amplifier LF353,
Being converted into the current signal driving electrohydraulic servo valve, range of current output is-300mA～300mA.
It is provided with XY monitor interface 7 on processor 1, connects traditional by XY monitor interface 7
XY monitor, can export characteristic curve on XY monitor.
XY monitor RS232 communication interface 8 it is provided with, by RS232 interface and meter on processor 1
Calculation machine connects, and characteristic curve and characterisitic parameter can be shown on computers and be preserved.
The processor 1 operation logic state by digital input module 2 read test instrument, reads touch screen 6
Setting, internal produce the high precision low frequency command signal controlling servo valve and the logic letter controlling electromagnetic valve
Number, low frequency command signal, after driving circuit of servo valve 4, is converted into the current signal driving servo valve,
Maximal servo drives electric current to be 300mA.Control the logical signal of electromagnetic valve through driving circuit for electromagnetic valve 5
After, it is converted into the solenoid valve control signal of 0V or 24V, the most corresponding Push And Release.Processor 1 passes through mould
The flow signal of analog quantity input module 3 Real-time Collection servo valve sensor and pressure signal, send out collection signal
Give touch screen 6 and show flow curve and pressure curve in real time.Processor 1 to gathering flow curve and pressure
Force curve carries out storing, analyze and calculating, and calculates the metered flow of electrohydraulic servo valve, flow gain, line
Property degree, stagnant ring, resolution, symmetry, pressure gain, pressure zero partially, the static properties parameter such as amount of leakage,
The servo valve static properties parameter calculated is sent to touch screen 6 and shows by processor 1.
As it has been described above, this utility model can complete the static properties test of electrohydraulic servo valve, can calculate and show
Go out various characteristic curves and the performance parameter of servo valve.
Above in conjunction with accompanying drawing, embodiment of the present utility model is described, but this utility model not office
Being limited to above-mentioned detailed description of the invention, above-mentioned detailed description of the invention is only schematically rather than to limit
Property, those of ordinary skill in the art is under enlightenment of the present utility model, without departing from this utility model ancestor
In the case of purport and scope of the claimed protection, it may also be made that a lot of form, it is new that these belong to this practicality
Within the protection of type.
Claims (6)
1. having characteristic curve and a performance parameter display servo valve static properties tester, its feature exists
In, the digital input module that including processor and is connected with processor, touch screen, Analog input mModule,
Driving circuit of servo valve and driving circuit for electromagnetic valve, described processor is provided with I/O module and AD conversion
Module, described I/O module is connected with touch screen by digital input module, described AD conversion module and mould
Analog quantity input module connects, described Analog input mModule with gather servo valve flow signal and pressure signal
Sensor connects.
The most according to claim 1 have characteristic curve and performance parameter display servo valve static properties
Tester, it is characterised in that be provided with the logical signal by processor exports in described driving circuit for electromagnetic valve and turn
It is changed to the relay of 0 or 24V voltage control signal.
The most according to claim 1 have characteristic curve and performance parameter display servo valve static properties
Tester, it is characterised in that be provided with AD conversion chip and operational amplifier in described driving circuit of servo valve,
AD conversion chip and operational amplifier connect, and described AD conversion chip and operational amplifier are defeated by processor
The low frequency command signal gone out is converted to current controling signal.
The most according to claim 3 have characteristic curve and performance parameter display servo valve static properties
Tester, it is characterised in that described current controling signal scope is-300mA～300mA.
The most according to claim 1 have characteristic curve and performance parameter display servo valve static properties
Tester, it is characterised in that be provided with XY monitor interface on described processor.
The most according to claim 1 have characteristic curve and performance parameter display servo valve static properties
Tester, it is characterised in that be provided with RS232 communication interface on described processor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620041090.3U CN205483517U (en) | 2016-01-16 | 2016-01-16 | It shows servovalve static performance tester to have characteristic curve and performance parameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620041090.3U CN205483517U (en) | 2016-01-16 | 2016-01-16 | It shows servovalve static performance tester to have characteristic curve and performance parameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205483517U true CN205483517U (en) | 2016-08-17 |
Family
ID=56669548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620041090.3U Expired - Fee Related CN205483517U (en) | 2016-01-16 | 2016-01-16 | It shows servovalve static performance tester to have characteristic curve and performance parameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205483517U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007688A (en) * | 2017-12-11 | 2018-05-08 | 麦格思维特(上海)流体工程有限公司 | Clutch leaks piston displacement testboard |
| CN114109949A (en) * | 2021-11-16 | 2022-03-01 | 大连海事大学 | Digital twin optimization control system and method for valve port independent control electro-hydraulic system |
-
2016
- 2016-01-16 CN CN201620041090.3U patent/CN205483517U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007688A (en) * | 2017-12-11 | 2018-05-08 | 麦格思维特(上海)流体工程有限公司 | Clutch leaks piston displacement testboard |
| CN114109949A (en) * | 2021-11-16 | 2022-03-01 | 大连海事大学 | Digital twin optimization control system and method for valve port independent control electro-hydraulic system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101907697B (en) | Dynamic property tester of electric energy meter | |
| CN102478033A (en) | Measuring and controlling system of electro-hydraulic servo valve | |
| CN104198190A (en) | Aero-engine comprehensive testing system | |
| CN205483517U (en) | It shows servovalve static performance tester to have characteristic curve and performance parameter | |
| CN102052233A (en) | Water turbine regulating system module used for stability analysis of power system | |
| CN201866014U (en) | Measure and control system of electro-hydraulic servo valve | |
| CN203949716U (en) | A kind of digital weighing sensor | |
| CN109885026A (en) | A kind of test macro for aviation piston engine boost controller | |
| CN201548682U (en) | Three-phase impact performance load power signal source device | |
| CN201502410U (en) | Static debugging device of steam turbine speed control system | |
| CN107239643A (en) | The parameter identification apparatus and method of super-magnetostrictive drive magnetic hysteresis nonlinear model | |
| CN202372592U (en) | Electric energy quality monitoring instrument | |
| CN201539468U (en) | Hydraulic motor test stand automatic measure and control device | |
| CN101908190A (en) | Radar chart index expression method for analysis and evaluation on power market | |
| CN210005679U (en) | Device for evaluating influence of dynamic harmonic and temperature change on electric energy meter error | |
| CN202563724U (en) | DBP semi-continuous production-oriented chemical teaching simulation system | |
| CN108287307A (en) | Data processing system for electromechanical testing | |
| CN209356606U (en) | A kind of multichannel configurable general controller batch testing instrument | |
| CN207248520U (en) | Lead screw pair transmission efficiency precision measurement apparatus | |
| CN201653613U (en) | Torque detection device for torsional spring | |
| CN108508742A (en) | Tractor electro-hydraulic hitch quick control prototype system and test method | |
| CN203083610U (en) | Environmental temperature test comprehensive measurement and control system | |
| CN203038523U (en) | Novel hydraulic transmission test bed | |
| CN201210260Y (en) | Special laboratory temperature and humidity monitoring and control apparatus | |
| CN206096415U (en) | Magnetostrictive material magnetic characteristic collection system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20170116 |