Calibration of a Heat Flow Meter Apparatus

In Line Flow-meter Calibration

Steady-State Thermal Transmission Properties by Means of the Heat Flow Meter Apparatus

1.1 This test method covers the measurement of steady state thermal transmission through flat slab specimens using a heat flow meter apparatus. 1.2 The heat flow meter apparatus is used widely because it is relatively simple in concept, rapid, and applicable to a wide range of test specimens. The precision and bias of the heat flow meter apparatus can be excellent provided calibration is carrie...

A Curve-fitting Calibration Method applied for Ultrasonic Flow-meter

As the influence of fluid distribution in the internal pipe, the measurement characteristics of theory and practice exist significant differences in Ultrasonic Flow-meter (USF). Through analysis of fluid state, the method of curve-fitting is applied for the calibration of USF. Experimental results show that the USF can achieve level-1 accuracy with just a correction of 5 flow points, and this m...

Phase meter calibration at NBS

National Bureau of Standards Gaithersburg, MD 20899 To provide a phase meter calibration service, a phase angle calibration standard has been developed at NBS. This standard is a signal. generator with two sinusoidal outputs and uses direct digital synthesis to generate the signals. The phase angle between the two sinusoids is determined by the input parameters in the calculation of the sets of...

Coulometric Calibration of Microvolumetric Apparatus*

Coulometric tit.ratio~ provides a si~ple and accurate means to ca librate microvolumet ri c appara tus such as burets, mICroplpets, and syrInges. The apparatus to be calibrated is caused to deliver a solution of know? concentration into an electrolysis cell where it is analyzed coulometri cally. By the method descnbed, volumes ranging from 300 ILl to I ILl have been calibrated with relative sta...