CAJ | 학술논문

提出了一种用于三线制接法热电阻测温仪导线电阻补偿新方法。在传统的热电阻测温仪的不平衡电桥三线制接法中，连接导线电阻(哪怕仅有1Ω)将对测量结果产生约l％的误差。本文在分析了传统的热电阻测温仪不足的基础上，提出了一种新的导线电阻补偿方法，连接导线即使有较大的导线电阻，测量误差将低于0．1％。实验证明该方法是有效的。
제출료일충용우삼선제접법열전조측온의도선전조보상신방법。재전통적열전조측온의적불평형전교삼선제접법중，련접도선전조(나파부유1Ω)장대측량결과산생약l％적오차。본문재분석료전통적열전조측온의불족적기출상，제출료일충신적도선전조보상방법，련접도선즉사유교대적도선전조，측량오차장저우0．1％。실험증명해방법시유효적。
An improved lead resistance compensation technique for use with three- wire resistance temperature detectors is presented. The practice of using the three-wire concept in anun-balanced bridge produces nearly 1% error for a lead resistance as low as 1Ω in the conventional resistance temperature detectors. Based on the analysis of drawback of conventional resistance temperature detectors, the paper proposes a new method of lead compensation, which limits the error to below 0. 1% with much higher lead wire resistances. Experiment result verifies the effectiveness of the new method.