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Development of photoelastic ultrasonic visualization system using pulse laser for the evaluation of high frequency phased array system パルスレーザー光源を用いた超音波可視化装置の開発と高周 波フェイズドアレイ音場の観察
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mihara, Tsuyoshi |
| Copyright Year | 2009 |
| Abstract | The photoelastic ultrasonic visualization method is the most familiar experimental technique to observe the ultrasonic propagation in a transparent model sample. We have used this system to evaluate the detail of the ultrasonic propergation in industrial applications[2] and also to verify the accuracy of the several analytical ultrasonic simulation code. However, according to the requirement for highly quantitative analysis for an ultrasonic travelling behaviour, lack of a spatial resolution in photoelastic visualized image due to the duration time of the stroboscope became sometimes serious problem. Though new visualization systems using pulse laser as a light source have been proposed until now, no system have been widely used in industrial problem because Kanemitsu's system was too special in delay equipment[1] and auther's system was unstable in delay electric circuit[4]. In this study, in order to develop high accurate and stable ultrasonic visualization system photoelastic ultrasonic visualization system was improved for the optical setup and the delay circuit. As a demonstration of the developed system, sound feild of the 50MHz phased array system for inspection of semiconduct products was evaluated, and the visualized image by the new system was compared with the one by the ventional stroboscope light source system. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.use-jp.org/USE2010/proceedings/USE09/pdf/1P2-20.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
