Tool, consisting of a graduated storage vessel and a control panel, can determine the amount of gas entrained by fluid in a closed system, the amount of fluid remaining in a dried system of known volume, or the volume of a container of unknown size

Erbe, C. J.

Poulos, L. J.

English

NASA Technical Reports Server

September 1970	 Brief 70-10502 
•	 NASA TECH BRIEF	 41 
NASA Tech Briefs announce new technology derived from the U.S. space program. They are issued to encourage commercial 
application. Tech Briefsare available on a subscription basis from the Clearinghouse for Federal Scientific and Technical 
Information, Springfield, Virginia 22151. Requests for individual copies or questions relating to the Tech Brief program may 
be directed to the Technology Utilization Division, NASA, Code UT, Washington, D.C. 20546. 
Volume-Checking Tool 
The amount of fluid in a closed system of known or 
unknown volume can be determined with a novel 
volume-checking tool. Similarly the amount of gas 
entrained by fluid in a closed system, the amount of 
fluid remaining in a dried system of known volume, 
or the volume of a container of unknown size can be 
determined. 
The tool was developed for checking the contents 
of a closed-circuit, pressurized loop containing a
coolant mixture of water and methanol. During oper-
ation a certain amount of fluid leaked from the sys-
tem, and small amounts of gas were generated by 
galvanic action within it. Since the volume of entrained 
gas could not exceed the allowable amount it was 
necessary to determine accurately (1) the original and 
final (after operation) fluid contents on which the 
leakage rate could be based, and(2) the rate of gas 
generation. 
The tool consists of two modules (see fig.): a stand-
pipe or graduated storage vessel, and a control panel. 
Its accuracy is limited to that of the off-the-shelf in-
struments incorporated. In one variation. oranother 
the tool is potentially widely applicable. 
Note: 
Requests for further information may be directed 
to:
Technology Utilization Officer 
Kennedy Space Center 
Code AD-PAT 
Kennedy Space Center, Florida 32899 
Reference: TSP70- 10502 
Patent status: 
Inquiries about obtaining rights for the commercial 
use of this invention may be made to NASA, Code 
GP, Washington, D.C. 20546. 
Source: C. J. Erbe and L. J. Poulos of

IBM Corp.
under contract to

Kennedy Space Center

(KSC-10514) 
This document was prepared under the sponsorship of the National 
Aeronautics and Space Administration. Neither the United States 
Government nor any person acting on behalf of the United 'States
Category 07 
Government assumes any liability resulting from the use of the 
information contained in this document, or warrants that such use 
will be free from privately owned -rights.
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Volume-checking tool

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