A RESONANCE-TYPE ULTRASONIC THICKNESS GAGE FOR MEASURING THE WALL THICKNESS AND CORROSION OF CHEMICAL PLANT EQUIPMENT

reportActive / Technical Report | Accession Number: AD0666138 | Open PDF

Abstract:

A discussion is given of the principles of thickness measurement by the ultrasonic resonance method and equipment designed for applying this technique to the measurement of the depth of corrosion in chemical equipment is described. Emphasis is placed on the proper use of transducers and coupling media for optimum results. In actual practice, certain key points should be selected for testing signal identification is best achieved with an oscilloscope, and if the resonant signal appears very often during measurements of thickness, the accuracy can be improved by taking the mean of several measurements. Some of the parameters of the Chinese model HS-1 meter, which has a maximum error of 4-4, and an average error of 1-3 when measuring steel having a thickness of 3-30 mm, are given. At the present time, this technique cannot be used for measuring the wall thickness of small-diameter pipes.

Author(s):
Tang, M. C.
Author Organization(s):
FOREIGN TECHNOLOGY DIV WRIGHT-PATTERSON AFB OH
Supplementary Note:
Edited trans. of Hua Hsueh Shih Chieh (Chinese People's Republic) v18 n8 p377-9 1964.
Annotation:
A resonance-type ultrasonic thickness gage for measuring the wall thickness and corrosion of chemical plant equipment--Translation.
Pagination:
0015

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited. Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
FTD-HT-67-163
Contract/Grant Number(s):
AF 33(657)-16410
Monitor Series:
FTD
 Subject Terms
Joint Capability Areas:
JCA_6.1.1_Wired Transmission; JCA_6.1.3_Switching and Routing; JCA_6.1_Information Transport; JCA_6_Net Centric
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*NONDESTRUCTIVE TESTING, *INDUSTRIAL EQUIPMENT, THICKNESS, TEST EQUIPMENT, TRANSDUCERS, CHINA, ULTRASONIC RADIATION, CHEMICAL ENGINEERING, TRANSLATIONS, RESONANCE, CORROSION
Field(s)/Group(s):
Industrial Chemistry and Chemical Processing, Machinery and Tools, Test Facilities, Equipment and Methods
Keyword(s):
REACTORS(CHEMICAL), FOREIGN REPORTS
Report Date:
1967 Sep 13