DIY Circuit HACK – How to build An inexpensive Hall effect Gaussmeter!
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Oh, check out this cool DIY on how to build an inexpensive Hall Effect Gaussmeter! If you don’t want to build one, you can always buy a gaussmeter here.
Have you ever wanted to find out how strong a magnet really was, or how the strength of the magnetic field varied as you changed the distance from the magnet or the temperature of the magnet, or how well a shield placed in front of the magnet worked? Voltmeters are fairly inexpensive and easy to find, but where do you purchase a Gaussmeter (also known as a magnetometer). I built a hand-held Gaussmeter for measuring the polarity and strength of a magnetic field. It uses a linear Hall effect device and some op-amps and resistors and things from Radio Shack.
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cool… but are there any real uses for them???
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yea…. it says they are for testing the strenght … that has many uses
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