Accession Number : AD0721041
Title : Determination of the Structural Integrity of Filter/Separator Elements by Nondestructive Testing.
Descriptive Note : Final technical rept. 17 May-16 Aug 67 on Phase 1,
Corporate Author : IIT RESEARCH INST CHICAGO ILL
Personal Author(s) : Langdon,William M.
Report Date : SEP 1967
Pagination or Media Count : 36
Abstract : The objective of the program is to develop a device for the assembly-line evaluation of F/S elements during manufacture. The work thus far demonstrated that structural, localized defects of various built-in densities in fiber glass filter/separator elements can be detected by gas-diffusion techniques with a tracer gas and a single-probe jet. Preliminary tests indicate that a tracer-gas injection probe, properly positioned, will permit a single sensor probe to detect defects over an appreciable area. Helium, methane, and neon were used as tracer gases because their behavior is similar. These gases can be detected with a partial pressure analyzer at m/e's of 4, 15, and 22, respectively; these peaks interfere only minimally with those from the air sweep gas. (Author)
Descriptors : (*FUEL FILTERS, NONDESTRUCTIVE TESTING), DEFECTS(MATERIALS), GAS FLOW, DETECTORS
Subject Categories : Mfg & Industrial Eng & Control of Product Sys
Pumps, Filters, Pipes, Tubing, Fittings & Vlvs
Distribution Statement : APPROVED FOR PUBLIC RELEASE