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Article: Development of a Hall-sensor based magnetometer.(SOUTH CAROLINA JUNIOR ACADEMY OF SCIENCE ABSTRACTS)
- Article from:
- Bulletin of the South Carolina Academy of Science
- Article date:
- January 1, 2005
- Author:
CopyrightCOPYRIGHT 2005 South Carolina Academy of Science. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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The goal of this project was the design and construction of a device that would use a Hall sensor and the Meisner Effect to measure the effectiveness of a material as a superconductor. To understand the Meisner Effect, it is best to imagine a rock in the middle of a flowing stream. When a magnetic field is directed toward a superconductor, the lines of field curve around the material and reform on the other side, much like the water curves around the rock in the stream. The lines curving away will also leave an area very close to the superconductor where there is no magnetic field. Here is where the Hall-sensor is utilized. A Hall sensor measures the magnitude of magnetic ...