|Table of Contents|

Automatic detecting system for wall thickness of pressure tube(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2017年02期
Page:
52-58
Research Field:
研究与设计
Publishing date:

Info

Title:
Automatic detecting system for wall thickness of pressure tube
Author(s):
YUAN Xiaoxiao1; 2;  LIU Qingyan3
1. Shanghai Institute of Space Propulsion, Shanghai 201112, China; 2. Shanghai Engineering Research Center of Space Engine, Shanghai 201112, China; 3. MOE Key Lab of Safety Science of Pressurized System, School of Mechanical and Power Engineering, East C
Keywords:
pressure tube; ultrasonic examination; measured point matrix; complete wall thickness information
PACS:
V434-34
DOI:
-
Abstract:
An automated ultrasonic testing system was developed to detect the even degree of 1～2 mm wall thickness of the pressured tube,obtain the complete wall thickness information of the pressured tube,and provide a design basis for reliability and security of the pressured tube applied to any aerospace systems.The 6-point matrix control method is used in the ultrasonic examination system to obtain the complete wall thickness information of the pressured tube.This system consists of ultrasonic hardware and actuating mechanism subsystems which are applied to the clamping and motion of ultrasonic transducer.The ultrasonic software subsystem is used to establish a data algorithm and deal with the measurement signal.The experimental outcome indicate that the accuracy of the ultrasonic detecting system for detecting the complete wall thickness information of the pressured tube is not less than 0.02 mm.The ultrasonic detecting system has a very good referential value for the study and system development related to NDT.

References:

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