計量標準報告 Vol.5 No.4

Measurement of the copper freezing point using high-temperature platinum resistance thermometers

Design improvement against the lead leakage effect for high temperature SPRTs up to 1085℃

Emf changes of Pt/Pd thermocouples in the range from 1080℃ to 1330℃

Emf changes of Pt/Pd thermocouples in the range 420℃ to 1080℃

Effects of heat treatment on the inhomogeneity of the Pt/Pd thermocouples at the silver freezing point

Development of an infrared radiation thermometer and a large-opening zinc-point blackbody for the middle temperature standards

Measurement of adsorbed water for construction of a standard generator of trace moisture

A comparison of the blackbody cavities for infrared ear thermometers of NMIJ, NPL, and PTB

A comparison of Re-C and TiC-C eutectic fixed-point cells among VNIIOFI, NMIJ and BIPM

Uncertainty in type approval and verification

Comparison test between the primary standard for hydrocarbon flow and calibration facilities in Japan by using the uitrasonic flowmeters and positive displacement flowmeter

Step gauge calibration method and evaluation of the uncertainties

Calibration methods of frequency standards and their uncertainties

A review of nonsinusoidal waveform measurements