DOU Wei-feng, YAN Wei-ping, TANG Ji-ren. Multi-channel high precision temperature detection system based on positive feedback[J]. 2011, 30(10): 127-129+136.
DOU Wei-feng, YAN Wei-ping, TANG Ji-ren. Multi-channel high precision temperature detection system based on positive feedback[J]. 2011, 30(10): 127-129+136. DOI: 10.13873/j.1000-97872011.10.042.
In order to detect heat-transferring characteristics of the micro heat pipe
an 8 channel temperature detection system is built using Pt100 temperature sensor.The integrated AD module and UART module of microcontroller MSP430 are used to complete A/D transform
communications and other functions.Fuctions of multi-channel temperature signal data fitting
data real-time display
and temperature curve drawing are implemented on upper PC with VC++.By joining positive feedback circuit
output linearity is improved.Temperature measuring range is from 0