Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Benchmark Gauging System for a Small-Scale Liquid Hydrogen Tank



N T. Van Dresar, James D. Siegwarth


A system to accurately weigh the fluid contents of a small-scale liquid hydrogen test tank has been experimentally verified. It is intended for use as a reference or benchmark system when testing low-gravity liquid quantity gauging concepts in the terrestrial environment. This manuscript describes the weighing system design, calibration and operational results. The reference gauging system has shown a repeatable measurement accuracy of better than 0.5 percent of the full tank liquid weight. Suggestions are given for further refinement of the system which can improve accuracy to 0.10 percent of full scale.
Review of Scientific Instruments


calibration, liquid hydrogen, scale, vacuum, waste system


Van Dresar, N. and Siegwarth, J. (2021), Benchmark Gauging System for a Small-Scale Liquid Hydrogen Tank, Review of Scientific Instruments (Accessed March 3, 2024)
Created October 12, 2021