The control system of blast furnace skip car position consisting of single-chip microcomputer 89C51RD2B and photoelectric encoder is presented . The application of position control and protection has been achieved .
This system uses photoelectric coder as speed detecting sensor,applies traditional PID digital controlling theories to CDC(Compter Digital Control)and implement CDC by monolithic computer.
该系统采用光电编码器作为速度检测传感器 ,将传统的PID数字控制理论用于CDC (computer digital control)控制之中 ,并由单片机完成CDC的控制。
A system of data acquisition and analysis used in internal combustion engines is developed based on the PC. The high speed A/D card with photoelectric coder and every 0 2° CA collecting a signal, which is based on PCI bus, is applied to improve the precision of measurement and analysis.
At the same time, the Extended Kalman filter is employed to fuse the multi ultrasonic sensors, result of which is used to reset the photoelectric coder by the retroactive algorithm, which can not only eliminate the influence of the cumulative errors of the photoelectric coder, but also it can satisfy the requirement of the real time control.
A digital servo control system is constructed, which consists of single-chip microcomputer AT89S52, dedicated motion-control chip LM629, integrated and intelligent power output amplification circuit LMD18245 and Incremental Optical Encoder.
Using an optical encoder, digital recorder and a data-logging computer on an arm weightlifting machine, F=m and F=ma were significantly different between 25% and 94%, contrary to published reports, but not at 100% of strength.
Tests were performed on a modified Monark cycle ergometer (Varberg, Sweden) equipped with force transducers on the friction belt and an optical encoder for velocity measurement.
The displacement was calculated by the acceleration data being integrated twice and was compared with the results obtained simultaneously by an accurate mechanical displacement sensor based on an optical encoder.