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Virtual Simulation Experiment of ThermistorMeasurement Based on LabVIEW
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XING Jialin1,ZHANG Yuyang2,LU Mengxue3,MAO Weiwei2,HE Xuemin2*
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Abstract
Based on the Wheatstone bridge , the virtual simulation experiment platform of “ hermistormeasurement"was successfully built by using labVIEW.The thermistor with a negative temperature coeficientis selected as the research object, and the platform realizes the continuous adjustment of two important parameters , A value and B value.During the virtual simulation process , the user measures the correspondingthermistor resistance by changing the experimental temperature , and records it in the “ data acquisition andanalysis odule in real-time. Subsequently, the simulation platform can automatically perform fitting of theexperimental data ,directly display the temperature curve of the thermistor in real-time , give the specific valuesof its slope and intercept, and finally, calculate the A value and B value.The results of multiple simulationsshow that the relative error of the measured thermistor A value and B value is below 1.0% , which has highaccuracy.The virtual simulation experiment has successfully realized all the functions of “ thermistor measurement in the laboratory" and possesses a good visualization effect.lts design ideas can be applied to theconstruction of other experiment virtual simulation platforms.
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Published: 25 December 2023
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[1] |
WANG Jiangxin, YANG Li , JIANG Jiangang, FENG Xiurong, XIE Yingge, WANG He.
Explore the Relationship Between Thermistor Resistanceand Temperature Based on Wheatstone Bridge
[J]. Physical Experiment of College, 2023, 36(6): 45-48. |
[2] |
LUO Yu, WENG Cuncheng, JIANG Liqin . Analysis of Wheatstone Bridge Experiment
[J]. Physical Experiment of College, 2023, 36(2): 66-68. |
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