Hall effect sensor
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I need hall effect sensor for my project such that its o/p voltage should changes according to change in magnetic flux density.
and the change in voltage should be in between 0 to 5. I searched a lot of sensors like A3144E(US1881)but it acts like switch.But i don't want this ,instead i want variable o/p e.g. 0, 1, 1.4 ,3.5 ,5 etc.
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You need a linear hall efect sensor (output proportional to field strength). Search Ebay for A1301 Hall sensor.
More information here:
http://playground.arduino.cc/Code/HallEffect
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