Pressure sensor monitors small gas leaks in piping and pressure vessels. A combination of a paper ribbon and adhesive plastic tape is used to cover the area to be monitored and the pressure sensor is placed over a hole in the tape and paper

Mitchell, D. K.

English

NASA Technical Reports Server

December 1966
	 Brief 66-10669 
NASA TECH BRIEF I& 
NASA Tech Briefs are issued to summarize specific innovations derived from the U.S. space program, 
to encourage their commercial application. Copies are available to the public at 15 cents each 
from the Clearinghouse for Federal Scientific and Technical Information, Springfield, Virginia 22151. 
Gas Leak Detector is Simple and Inexpensive 
The problem: 
To devise a simple, inexpensive system to continu-
ously monitor for small gas leaks in piping or pressure 
vessels that are remotely located or located in an 
environment that is hazardous to personnel. Previous 
methods have required either continuous monitoring 
by personnel or expensive instruments and systems 
or both. 
The solution: 
A combination of a paper ribbon and adhesive 
plastic tape is used to cover the area to be monitored 
and a pressure sensor is placed over a hole in the 
tape and paper. The pressure sensor consists of an 
upper and a lower diaphragm, protective covers, and 
adhesive-faced spacers to hold the components in 
place. Leaks move under the paper and tape and 
reach the sensor, which is actuated by the rise in 
pressure beneath it. The sensor response causes an 
audible and/or visual indication at a central control 
point remote from the detector location.
Notes: 
1. This system is advantageous because of its in-
expensive and simple construction and because 
it lends itself to monitoring any gas regardless of 
its nature. 
2. Inquiries concerning this innovation may be di-
rected to: 
Technology Utilization Officer 
Marshall Space Flight Center 
Huntsville, Alabama 35812 
Reference: B66-10669 
Patent status: 
No patent action is contemplated by NASA. 
Source: D. K. Mitchell 
of the Boeing Company 
under contract to 
Marshall Space Flight Center 
(M-FS-1206) 
Category 01 
This document was prepared under the sponsorship of the National 	 Government assumes any liability resulting from the use of the 
Aeronautics and Space Administration. Neither the United States 	 information contained in this document, or warrants that such use 
Government nor any person acting on behalf of the United States 	 will be free from privately owned rights.
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Gas leak detector is simple and inexpensive

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