High Accuracy Speed-fed Grating Angular Acceleration Measurement System Based on FPGA
Shaft angular acceleration is one of the most important parameter of rotary machines, the error of angular acceleration increased when the shaft speed up. For this problem, a new high accuracy angular acceleration measurement system is presented, the principle of measurement is self-regulating the period of speed sampling signal according to the proportion of the shaft speed up. This measurement system combined FPGA and SCM, the speed of shaft is received by the timer of SCM responding the interrupts of FPGA, and then set the parameter of frequency divider in FPGA, so as to make the period of speed sampling consistent with the proportion of the speed up. This measurement system could overcome the error when system speed up according to the experiment.
Keywords: Grating, Angular Acceleration, FPGA, Speed-feed
Download Full-Text
ABOUT THE AUTHOR
Hao Zhao
Mr. Zhao received the master degree in control theory and control engineering from Zhejiang University of Technology in 2010. he is engaged in the research work of motor and its testing.
Hao Zhao
Mr. Zhao received the master degree in control theory and control engineering from Zhejiang University of Technology in 2010. he is engaged in the research work of motor and its testing.
