April 2011
Intermediate to advanced
272 pages
7h 4m
English
Content preview from Hall-Effect Sensors, 2nd Edition
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Chapter 1
Hall-Effect Physics
Conceptually, a demonstration of the Hall effect is simple to set up and is illustrated in Figure 1-1. Figure 1-1 a shows a thin plate of conductive material, such as copper, that is carrying a current (I), in this case supplied by a battery. One can position a pair of probes connected to a voltmeter opposite each other along the sides of this plate such that the measured voltage is zero.
Figure 1-1 The Hall effect in a conductive sheet.
When a magnetic field is applied to the plate so that it is at right angles to the current flow, as shown in Figure 1-lb, a small voltage appears across the plate, which can
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