TY - GEN
T1 - Research on thermistor simulation based on digital potentiometer for microsatellites
AU - Guangquan, Zhao
AU - Jiwei, Zou
AU - Sirui, Xing
AU - Wei, Xu
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/12/22
Y1 - 2014/12/22
N2 - The simulation of the rmistors plays an important role in micro satellite thermal control subsystem test. The simulation generally adopts the programmable resistors. However, the traditional programmable resistor module designed with relay switching precision resistor technology has its disadvantages, e.g. Low integration and short lifespan. To overcome these shortcomings, the the rmistors simulation module based on digital potentiometer is designed and developed. The design adopts digital potentiometers as the core chips, a big resistance digital potentiometer and a small resistance digital potentiometer are connected to form the programmable resistors channel. DSP is used as the main controller in this design, it communicates with computer via RS-485 bus. Since digital potentiometers have big inherent error, the control values of digital potentiometers are calibrated. 32-channel programmable resistors ranging from 2kΩ to 200kΩ are integrated on a 160mm×100mm board. Due to the application of the digital potentiometers, the integration and lifespan of the module are greatly improved compared to traditional modules. The module has been applied in the test of micro satellites thermal control subsystem, the test results show that the module can meet the technical specifications.
AB - The simulation of the rmistors plays an important role in micro satellite thermal control subsystem test. The simulation generally adopts the programmable resistors. However, the traditional programmable resistor module designed with relay switching precision resistor technology has its disadvantages, e.g. Low integration and short lifespan. To overcome these shortcomings, the the rmistors simulation module based on digital potentiometer is designed and developed. The design adopts digital potentiometers as the core chips, a big resistance digital potentiometer and a small resistance digital potentiometer are connected to form the programmable resistors channel. DSP is used as the main controller in this design, it communicates with computer via RS-485 bus. Since digital potentiometers have big inherent error, the control values of digital potentiometers are calibrated. 32-channel programmable resistors ranging from 2kΩ to 200kΩ are integrated on a 160mm×100mm board. Due to the application of the digital potentiometers, the integration and lifespan of the module are greatly improved compared to traditional modules. The module has been applied in the test of micro satellites thermal control subsystem, the test results show that the module can meet the technical specifications.
KW - Digital potentiometer
KW - Microsatellite
KW - Thermal control subsystem test
KW - Thermistors simulation
UR - https://www.scopus.com/pages/publications/84921783296
U2 - 10.1109/IMCCC.2014.15
DO - 10.1109/IMCCC.2014.15
M3 - 会议稿件
AN - SCOPUS:84921783296
T3 - Proceedings - 2014 4th International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2014
SP - 31
EP - 35
BT - Proceedings - 2014 4th International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2014
A2 - Li, Jun-Bao
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 4th International Conference on Instrumentation and Measurement, Computer, Communication and Control, IMCCC 2014
Y2 - 18 September 2014 through 20 September 2014
ER -