203 Studies of Ultrasonic Sensing Method Using Chirp-Burst Wave : Evaluation of Precision of Plate Thickness Measurement

2008 ◽  
Vol 2008.7 (0) ◽  
pp. 82-87
Author(s):  
Michio UNEDA ◽  
Keisuke MIYAKE ◽  
Ken-ichi ISHIKAWA
Keyword(s):  
Plate Thickness ◽  
Thickness Measurement ◽  
Ultrasonic Sensing

The Laser Thickness Measurement System Applied in Steel Rolling

2013 ◽  
Vol 718-720 ◽  
pp. 725-732
Author(s):  
Kuang I Chang ◽  
Weber Yi Yuan Lin ◽  
Bor Nian Chuang ◽  
Kuang Fu Huang
Keyword(s):  
Steel Plate ◽  
System Development ◽  
Plate Thickness ◽  
Measurement Data ◽  
Integrated Design ◽  
Rolling Process ◽  
Thickness Measurement ◽  
Thickness Gauge ◽  
Steel Rolling ◽  
Plate Rolling

This paper mainly describes application of non-contact laser thickness gauge in steel plate rolling process, including workstation site thickness measurement, data collection, information analysis and integration with ERP system, as well as problems may arise during applications and sustainable development in the future. Through the system development to realize traditional steel plate rolling industry information planning, paperless operations, increase work efficiency, enhance product quality and zero defective products. Integrated design of steel plate thickness measurement and tachometer, to understand the pros and cons of output products right after steel plate rolling, and do product level classification immediately to assist enterprises to save manpower, time and loss cost of export defective products to the market, and eventually increase products competition and profits.

Research of Ultrasonic Thickness Measurement Method Based on the Pulse Reflection Type

2013 ◽  
Vol 380-384 ◽  
pp. 798-801 ◽  
Author(s):  
Min An ◽  
Jie Sun ◽  
Yin Yang Zhang
Keyword(s):  
Measurement Method ◽  
Steel Plate ◽  
Plate Thickness ◽  
Thickness Measurement ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Ultrasonic Thickness Measurement ◽  
Safety Production ◽  
Measurement Principle ◽  
Ultrasonic Thickness

The thickness measurement and monitoring of all kinds of equipment and parts, especially making general investigations on the thickness of boiler, pressure vessel and pipelines regularly, monitoring their thinning after corrosion in the process of using, and ensuring the safety production have attracted more and more attention among the companies. Based on the thickness measurement principle of pulse reflection type ultrasonic, the measurement method of the steel plate thickness was studied, and AVR Atmega16 single chip microcomputer as control chip was used. The analysis and comparison of ultrasonic transmitting circuit, receiving circuit, amplifying circuit, LCD display circuit, keyboard circuit, communication circuit, counter 232 AVR Atmega16 line were also included. The performance of this system regarding the steel plate as sample was tested, and then the data and the causes of measurement error were presented.

Simulation of Inspections on Ship Plates With Random Corrosion Patterns

2008 ◽  
Vol 24 (03) ◽  
pp. 168-175
Author(s):  
A. P. Teixeira ◽  
C. Guedes Soares
Keyword(s):  
Random Fields ◽  
Plate Thickness ◽  
Estimation Method ◽  
Thickness Measurement ◽  
Nonlinear Finite Element ◽  
Element Analysis ◽  
Collapse Strength ◽  
Optimal Linear ◽  
Correct Representation ◽  
Thickness Measurements

This paper investigates how the number of thickness measurements and the location of each measurement influence both the correct representation of the level of corrosion and indirectly the correct assessment of the collapse strength of the corroded plates. For this purpose, the corrosion patterns are represented by random fields, which are then discretized using the Expansion Optimal Linear Estimation method. This approach is used to simulate the present practice on thickness measurement patterns and to identify what would be the effect of other strategies of measurement patterns for representing the corrosion in terms of prediction of the average reduction of plate thickness. Finally, the collapse strength of the plates with nonuniform corrosion is calculated by nonlinear finite element analysis and its correlation with the average reduction of plate thickness obtained from the different measurement patterns is assessed.

A study on reliability-based inspection planning – Application to deck plate thickness measurement of aging tankers

2012 ◽  
Vol 25 (1) ◽  
pp. 85-106 ◽  
Author(s):  
Jinting (Jeffrey) Guo ◽  
Ge (George) Wang ◽  
Anastassios N. Perakis ◽  
Lyuben Ivanov
Keyword(s):  
Plate Thickness ◽  
Thickness Measurement ◽  
Inspection Planning ◽  
Deck Plate
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