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一、引言我国目前生产的铂热电阻感温元件(以下简称铂元件或元件)使用温度范围窄、外形尺寸大等缺点外,性能往往不符合国际电工委员会标准.另外,其电阻比值W(100℃)=1.391,不能在引进设备中使用,也不能与出口设备配套.为了促进我国生产的铂热电阻及早赶上国际先进水平,达到国际电工委员会标准IEC751,1983年4月,重庆仪表材料研究所首先研制成功W(100℃)=1.385的铂丝,并通过了鉴定,其中Φ0.065的铂丝的工作温度范围为-200～850℃,Φ
I. INTRODUCTION The performance of platinum thermal resistance temperature sensing element (hereinafter referred to as platinum element or component) currently used in our country is limited by its narrow temperature range and large size, and its performance often does not conform to the International Electrotechnical Commission standard. In addition, its resistance ratio W (100 ℃) = 1.391, can not be used in the introduction of equipment, it can not be used with the export of equipment.In order to promote China’s production of platinum resistance as early as possible to catch up with the international advanced level, to meet the International Electrotechnical Commission standard IEC751, April 1983, Chongqing Instrument Materials Research The first successful development of W (100 ℃) = 1.385 of platinum wire, and passed the identification, which Φ0.065 platinum wire operating temperature range of -200 ~ 850 ℃, Φ