Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Fangyan Zheng"'
Autor:
Zhonghua Gao, Fangyan Zheng
Publikováno v:
SPIE Proceedings.
A method of error separation on the principle of multiple signal superposition is introduced for time grating angular displacement sensors. According to the theory of error compensation, the accuracy of time grating sensors can be improved by compens
Publikováno v:
SPIE Proceedings.
Through analyzing errors of the length measurement system in which a linear time grating was the principal measuring component, we found that the study on the error law was very important to reduce system errors and optimize the system structure. Mai
Autor:
Fangyan Zheng
Publikováno v:
SPIE Proceedings.
this paper analyzes the characteristics of three typical angular displacement sensors, such as optical grating, inductosyns and time grating sensors, and a novel design method is presented. This method is based on the synthetic principle of electrica
Publikováno v:
SPIE Proceedings.
Time grating is a novel displacement sensor which employs time to measure space. A new predictive method for predicting the dynamic angular displacement of CNC rotary table is presented with time series. In addition, feedback interface for rotary tra
Publikováno v:
SPIE Proceedings.
Time grating is a novel displacement sensor with new principle which employs time to measure space. This sensor avoids relying on the precise mechanical spatial division technology to realize precise measurement which challenges the traditional view
Publikováno v:
SPIE Proceedings.
An appropriate model is established to analyze angular displacement error in machining process of linear cutting machine in paper. Analysis results are as follows: as the radius of machining decreases, the angle errors become larger. For the same rad
Publikováno v:
SPIE Proceedings.
In order to apply original absolute time grating sensor to closed loop numerical control system, a forecasting angle displacement method with time series analysis theory is proposed. In this way, an absolute time grating sensor can be transformed to
Publikováno v:
SPIE Proceedings.
Predictive measurement method was proposed for the circular position of time grating CNC rotary table. To reduce the dynamic prediction error and achieve high precision position feedback, this paper analyzes the characteristics of the dynamic predict