Measuring and controlling system of electro-hydraulic servo valve

An electro-hydraulic servo valve, measurement and control system technology, applied in fluid pressure actuation system testing, fluid pressure actuation devices, mechanical equipment, etc., can solve complex structures, difficult to adapt to system design, testing and monitoring, and human factors. It can improve the environment of the measurement and control system, improve the test accuracy and efficiency, and simplify the test process and operation steps.

Inactive Publication Date: 2012-05-30
SHENYANG LIGONG UNIV
View PDF1 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it still adopts the traditional manual measurement and control system, which uses buttons, signal generators, recorders, oscilloscopes, etc. to achieve, the test cost is high, the structure is complex, the test is greatly affected by

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Measuring and controlling system of electro-hydraulic servo valve
  • Measuring and controlling system of electro-hydraulic servo valve
  • Measuring and controlling system of electro-hydraulic servo valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The present invention will be further described below in conjunction with accompanying drawing and example.

[0015] as attached figure 1 As shown, the input current signal of each sensor first passes through the hardware conditioning circuit and is transformed into a standard signal that can be input to the acquisition card, and then performs A / D sampling through the data acquisition and processing equipment, converts it into a digital signal, and connects it to the computer through the USB communication line The signals required in the experiment process are all generated by the signals compiled by the software, which are converted into analog signals through the acquisition card D / A and directly sent to the electro-hydraulic servo valve. The servo valve converts the electrical signal into a pressure signal to drive the hydraulic cylinder.

[0016] as attached figure 2 As shown, the hardware conditioning circuit has the functions of current conversion, hardware filt...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

A measuring and controlling system of an electro-hydraulic servo valve comprises a hardware part and a software part, wherein the hardware part comprises sensors, an acquisition card, a signal conditioning circuit and a computer; the software part comprises three test modules which are respectively of an electro-hydraulic servo valve static characteristic module, and a PID closed-loop control module and an electro-hydraulic servo valve dynamic characteristic module. Firstly, signals of the sensors pass through a hardware conditioning circuit and then are subjected to the A/D (Analog to Digital) conversion through the acquisition card to be converted into digital signals; signals compiled by the software are subjected to the D/A (Digital to Analog) conversion through the acquisition card and then serve as control signals of the servo valve; test functions are realized through all modules in a program; the measuring and controlling system has the advantages that the environment of the measuring and controlling system is effectively improved, the test cost of the electro-hydraulic servo valve and the impact of the personal factors are reduced, operation steps are greatly simplified, and the accuracy and efficiency of testing are improved.

Description

technical field [0001] The invention is an electro-hydraulic servo valve measurement and control system, which belongs to the technical field of electro-hydraulic servo valve testing. Background technique [0002] The electro-hydraulic servo valve is a high-precision component that combines mechanical, electronic and hydraulic technologies. It has the advantages of high control precision, fast response, flexible signal processing, large output power and compact structure. It is widely used in metallurgical machinery, aerospace, ships, etc. and weapons industry and other major fields. The detection of the electro-hydraulic servo valve is of great significance to ensure the performance index of the servo valve and the accurate, fast and stable work of the electro-hydraulic servo control system. [0003] The FESTO TP511 test bench is a hydraulic servo system test bench produced by the German FESTO company. Its physical hardware conditions should also be at the international ad...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): F15B19/00
Inventor 卞军李艳杰
Owner SHENYANG LIGONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap