Fabrication of micro search coil magnetometer for magnetic field measurement using combined techniques /
Magnetic field detection and measurement has been widely used in many applications such as military systems, outer space exploration and even in medical diagnosis and treatment. Low magnetic field detection is particularly important in tracking of magnetic markers in digestive tracks or blood vessel...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
Kuala Lumpur :
Kulliyyah of Engineering, International Islamic University Malaysia,
2017
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| Subjects: | |
| Online Access: | Click here to view 1st 24 pages of the thesis. Members can view fulltext at the specified PCs in the library. |
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| Summary: | Magnetic field detection and measurement has been widely used in many applications such as military systems, outer space exploration and even in medical diagnosis and treatment. Low magnetic field detection is particularly important in tracking of magnetic markers in digestive tracks or blood vessels. The presence of magnetic fields' strength and direction can be measured by a device known as magnetometer. A magnetometer that is durable, room temperature operation and having non-movable components is chooses for this project. Traditional magnetometer tends to be bulky that hinders its inclusion into micro-scaled environment. This concern has brought the magnetometer into the trend of device miniaturization. Miniaturized magnetometer is usually fabricated using conventional microfabrication technique particularly surface micromachining in which micro structures are built level by level starting from the surface of substrates upwards until completion of final structure. Besides time consuming, this method requires many consecutive steps in fabrication process and careful alignment of patterns on every layer which increase the complexity. Hence, studies are done to improve time consuming and reliability of the microfabrication process. The objective of this research include designing micro scale magnetometer and complete device fabrication processes. A micro-scale search coil magnetometer of 15 windings with 600μm thickness of wire and 300μm distance between each wire has been designed. The fabricated micro search coil magnetometer are able to detect the magnetic field emitted by Helmholtz coil at 0.01 – 0.06 mT. Nevertheless, the limitation in this research is the micro-scale size that can be achieved. Keywords: Magnetometer, microfabrication, miniaturization, micro-scale, magnetic fields |
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| Physical Description: | xv, 78 leaves : colour illustrations ; 30cm. |
| Bibliography: | Includes bibliographical references (leaves 70-73). |