论文部分内容阅读
日本工业技术院计量研究所几年前为了改进国际实用温标(IPTS),制造气体温度计测定了氧沸点的绝对温度。现在又制造新型气体温度计,用来测定 IPTS 未规定的13.8开以下范围的绝对温度。然而由于温度范围比以前低,测定条件也不同,就有许多新的技术问题。目前正在把它们一个个解决,其中最大的问题还是提高压力计的精度,这在过去实验中也是难以消除的最大误差因素。本文叙述了新制的分辨率为0.3微
Japan Institute of Industrial Science and Technology Institute Several years ago in order to improve the International Practical Temperature Scale (IPTS), manufacturing gas thermometer to determine the absolute temperature of the boiling point of oxygen. A new gas thermometer is now being manufactured to measure the absolute temperature in the range 13.8 degrees Celsius (IPTS) not specified by IPTS. However, since the temperature range is lower than before and the measurement conditions are different, there are many new technical problems. They are currently being solved one by one, the biggest problem is to improve the accuracy of the pressure gauge, which in the past experiments is also difficult to eliminate the biggest error factor. This article describes the new system resolution of 0.3 micro