Precise servo mechanism resonance frequency testing system and testing method

A servo mechanism and resonant frequency technology, which is applied in the field of test systems for the resonance frequency of precision servo mechanisms, can solve the problems of difficult connection, difficult to control the tapping force, low repeatability, etc., so as to reduce the requirements of mechanical structure and reduce technical pressure. , operating the programmatic effect

Active Publication Date: 2014-09-10
XIDIAN UNIV
View PDF3 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using an LC circuit to form an oscillator has a complex structure, a single function, and is not easy to connect to other devices. Moreover, it can only display the amplitude-frequency characteristic curve, but cannot obtain the phase-frequency characteristic curve, which brings a lot of inconvenience to users and is widely used in practical applications. Large limitation; the percussion method test equipment is simple, it is to apply an exciting force to the homogeneous thin rod in the axial direction with an infinite frequency and amplitude that gradually decays with the increase of the frequency. When the percussion force is small, the amplitude in the image is small, and the As the percussion force increases, the image amplitude i

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
  • Precise servo mechanism resonance frequency testing system and testing method
  • Precise servo mechanism resonance frequency testing system and testing method
  • Precise servo mechanism resonance frequency testing system and testing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0068] The present invention also provides embodiment 2, adopts step method to test resonant frequency, comprises the following steps:

[0069]1) Initialize the system at first, set the motor driver 111 of the servo mechanism parameter tester 109 and the servo mechanism control parameter PID of the multi-axis motion control card 112 on the industrial computer 114;

[0070] 2) Then set the parameters of the excitation signal on the industrial computer, including the excitation signal S t (t) Amplitude V max , the excitation time t scan , where the excitation signal S in the step method t (t) Amplitude u rated is the rated voltage of the motor, and the excitation time is 100ms≤t scan ≤300ms;

[0071] 3) Setting keys for different position sensors on the sensor selection switch of the servo mechanism parameter tester; and selecting corresponding data transmission processing modules corresponding to different position sensors on the data conversion processing card;

[0072...

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

The invention discloses a precise servo mechanism resonance frequency testing system and a testing method. The system comprises a tested precise servo mechanism, a servo mechanism parameter tester and a data processing display terminal industrial control computer. The tested precise servo mechanism achieves a system with the mechanical system position, the speed or acceleration controlled in a closed loop control mode. The testing method is one selected from a sweep frequency method, a step method, a white noise method or a Multitone method. Multiple kinds of excitation signals can be selected, errors due to different characteristics of different mechanisms can be reduced. The powerful software function of a micro computer and the graphical environment are used for research and development on the servo system resonance frequency tester, the operation is simple and programmed, the cost performance is high, and demands of scientific research and engineering design can be better met.

Description

technical field [0001] The invention belongs to the field of electromechanical systems, in particular to a test system and a test method for the resonant frequency of a precision servo mechanism that can be used in the field of electromechanical system test technology and precision measurement systems and can be used in the field of information processing. Background technique [0002] In a typical industrial control system equipment, the servo motor is connected to the actuator through a transmission mechanism with limited stability. The transfer function of the system often contains a zero point and a pair of conjugate poles, so it is easy to cause mechanical resonance. The influence of the load and the change of the input (output) signal may lead to the occurrence of the resonance phenomenon. [0003] Frequency characteristics are the response characteristics of a system to sinusoidal input signals of different frequencies. Like the transfer function, the frequency chara...

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): G01R23/02
Inventor 王卫东王和宁马伯渊李伟李建文
Owner XIDIAN 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