Ring-Space Array Torque Measure System and Signal Singularity Detection

2012 ◽  
Vol 629 ◽  
pp. 741-746
Author(s):  
Yuan Gan Wang
Keyword(s):  
Wavelet Transform ◽  
Dynamic Characteristics ◽  
Measurement System ◽  
Principal Axis ◽  
Torque Measurement ◽  
Singularity Detection ◽  
Working Environments ◽  
Driven System ◽  
Detection Of Signals ◽  
Ring Space

Torque is the most important dynamic characteristics of the mechanically-driven system. In order to monitor the mechanical principal axis in real time, a new non-contact torque measurement system based on ring-space array sensor is proposed. This system can be used for the analysis of dynamic characteristics of the mechanical system’s axis under various loads and hard working environments. Singularity in the collected signals is most important with the mechanical system. Because of much noise was contained in collected signals, which always interferes the signal’s singularity detection. According to the different behaves of signal and noise under wavelet transform, a method with wavelet filtering and singularity detection combined is proposed. This method could realize two-dimension filtering reconstruction in both time and frequency domain, in which the singularity information in signal can be kept well while the noise will be filtered. The proposed method is suitable for singularity detection of signals under serious noise.

Singularity detection in FOG-based pavement data by wavelet transform

2017 ◽  
Author(s):  
Dandan Yang ◽  
Lixin Wang ◽  
Wenbin Hu ◽  
Zhen Zhang ◽  
Jinghua Fu ◽  
...  
Keyword(s):  
Wavelet Transform ◽  
Singularity Detection

Advanced Torque Measurement System

1973 ◽  
Author(s):  
Jee-Da Chang ◽  
Joseph Kukel
Keyword(s):  
Measurement System ◽  
Torque Measurement

Study on Torque Measurement Errors’ Compensation of Reducer Based on Piecewise PID Control

2012 ◽  
Vol 588-589 ◽  
pp. 1446-1449
Author(s):  
Kai Li ◽  
Feng Yuan ◽  
Xin Guo
Keyword(s):  
Measurement Errors ◽  
Measuring Error ◽  
Torque Measurement ◽  
Driven System ◽  
Wide Scale ◽  
Measuring Experiment ◽  
Measurement Experiment ◽  
Mechanical Factors ◽  
The Mathematical Model ◽  
Input Torque

Reducer’s input torque and output torque characteristics determine the kinematics performances of electro actuators. During the torque measurement experiment, many factors lead to torque measurement error, the major error components of which are mechanical assembly’s precision and electrical machine’s driven features. Compensating electrical errors and obtaining the real mechanical characteristics are meaningful and necessary especially on the conditions of wide-scale torque measuring. Neglecting mechanical factors’ influences, this paper pays attention to system’s control features based on the actual project with the demands of steady state and dynamic torque loading. Considering the quantized error, the mathematical model of power driven system is established, and the appropriate control algorithm of piecewise PID method is proposed, the simulation curves of which are expressed. The actual measuring experiment curves of rotating angle and compensated torque are drawn, the results of which illustrate the torque measuring error induced by drivers has been obviously removed, which validates the efficiency of such method.

Sign in / Sign up

Export Citation Format

Share Document