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The Detecting Equipment of the Laser Scratching and Testing Research

Author: ChengChang
Tutor: YinSuMin
School: Jiangsu University
Course: Mechanical and Electronic Engineering
Keywords: Laser scarification Film Bonding strength Infrared Thermal Imaging
CLC: TN247
Type: Master's thesis
Year: 2008
Downloads: 28
Quote: 0
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Abstract

The film based interface bonding strength is the characterization of the important indicators of the quality of the film, is a key technology in the research and application of thin film technology. The detection membrane-based interface combined with the performance of the laser spallation method, Scratch indentation method, interface indentation method as many as 355 kinds of. These methods in the theoretical analysis and measurement technology, there are problems that need to be solved, people have yet to figure out the table mask the true relationship between the destruction of the critical value of the interfacial bond strength, and performance testing technology has yet to find the interface applicable to all situations direct quantitative determination of interfacial bond strength is still a difficult problem to plague the national counterparts. My school teacher on the basis of a variety of methods of measurement of the strength of the film for the first time put forward a new concept of laser technology combined with traditional scarification, and carried out a systematic theoretical study aimed to explore the film strength measurement The application of the new method and the laser processing technology in the film field. The paper analyzes the method for the measurement of a variety of film strength, and discusses the principle of the laser scribing method, in contrast to draw the technical characteristics of the laser scribing method. According to the requirements of the laser scribe detection system, there is proposed a system configuration of the laser scribe detecting means. The system consists of six parts, namely general-purpose industrial control computer to the host computer, laser control module, power meter module, four-dimensional work of translation stage module, infrared camera module and CCD imaging module. IPC host computer is a total console, laser control module is responsible for the control of the laser power, the power meter module is responsible for receiving the film scratches at the reflection of the white light source lasers emit laser, four-dimensional the work translation stage module containing the film sample responsible for control of the speed and trajectory of the film scratches, infrared imaging module is responsible for recording the film scratches temperature parameters, CCD imaging module is responsible for the image of the film scratches records. The entire laser shock forming control system is divided into two management, industrial control computer as the host machine, other control module as the next-bit machine; system software using Microsoft Visual C 6.0 platform development, the host computer via RS-232 or PCI bus to achieve with the next bit plane exchange, is responsible to monitor the entire system and a variety of operational control commands sent to the next bit machine and set the parameters, the next crew is responsible for receiving and specific implementation of the command of the host computer, the feedback of the entire system at the same time work status to the host computer.

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