ERU - 2012

Permanent URI for this collectionhttp://192.248.9.226/handle/123/14689

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Browsing ERU - 2012 by Author "Amarasinghe, YWR"

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    item: Conference-Full-text
    Design and Optimization of a MEMS Based Piezoresistive Pressure Sensor for Hash Flood Level Measurement.
    (The Engineering Research Unit, University of Moratuwa, 2013-02) Priyadarshana, TGP; Wijethunge, HMDP; Jayasekara, BCCP; Amarasinghe, YWR; Rodrigo, R
    This paper is focused on designing and optimization of a Micro Electro Mechanical System (MEMS) based piezoresistive .t ype pressure 10 enhance the sensitivity by optimally utilizing the maximum available Silicon wafer cell volume of 3mmX3mmX400pm and a fixed thickness of 10pm due to fabrication constrains. Here an analysis is carried out by varying the dimensions of two different diaphragm geometries, namely conventional square type diaphragm and cross-sectional beam type diaphragm. The analysis is done using finite element method (FEM) technique in ANSYS software and by comparing the results, the better diaphr agm type is chosen for the required pressure range oj the application for flash fiood level The results show that for some pressure ranges the cross-sectional beam type diaphragm delivers a much better sensitivity than the conventional square type diaphragm.
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    item: Conference-Extended-Abstract
    Design and testing a portable negative preasure wound therapy (NPWT) device
    (The Engineering Research Unit, University of Moratuwa, 2013-02) Welgama, WPD; Gray, HA; Amarasinghe, YWR; Wijeyaratne, SM; Sugathapala, AGT; Rodrigo, R
    The purpose of this research was to develop a clinically validated portable NPWT device with low power consumption features. A new NPWT device having dimension of 30 cmy'20 cm x / 5cm (Length x Width x Hight) was clinically tested to evaluate its performance. The device is capable of working continuously for more than 24 hours under pressure range from -50 mmHg to -250 mmHg with ± 3 mmHg accuracy’. After several clinical tests, it could be confirmed that the wound healing rate has been increased significantly with the aid of developed NPWT device.
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    item: Conference-Full-text
    Rfid assisted smart conveyor system with industrial robot hand
    (The Engineering Research Unit, University of Moratuwa, 2013-02) Herath, HMDB; Piyasena, RSV; Prasanna, PPGC; Amarasinghe, YWR; Rodrigo, R
    In this paper a prototype smart conveyor system is developed with the integration of Radio Frequency Identification (RFID) technology and a robot hand for product handling in a manufacturing environment. A novel Flexible Manufacturing System (FMS) with customer based production is introduced using web-services technology> and a real-time updatable inventory database to enhance operational efficiency’ of the manufacturing environment. The FMS designed is a fully automated system with RFID tags/detectors, intelligent control systems, robot arms and sorting mechanisms, smart conveyor system and a real time updatable inventory database with application software. This study demonstrates the significance and benefits oj a smart conveyor system with the integration of RFID technology for product identification and handling, specifically in the manufacturing industry.