Build Your Own Gauss Meter


Posted on Feb 6, 2014

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 k


Build Your Own Gauss Meter
Click here to download the full size of the above Circuit.

nown 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. Now, with a magnet near the Hall device, you will see the output voltage change. If it is a South pole, the voltage will increase. If it is a North pole, the voltage will decrease. Call this voltage reading V1. We will say that the sensitivity of the Hall device is 2. 50mV/G as found on their data-sheet. Call this k. Therefore, the Magnetic Flux Density you are measuring from that magnet can be calculated as: See how easy that is You can make your own plot using Excel so you don`t have to calculate all the time. If you`re taking measurements, just write down the output voltage and do the calculations later. Pickup covers do affect the magnetic field that the strings vibrate in. The most pronounced drop in gauss is over the slug polepieces. The adjustable polepieces have significantly more power than covered ones.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    pest repellent circuit
    Electronic light flasher
    Period-To-Voltage Converter
    Arduino Midi
    modifying 4047 ic inverter into sine
    digital multimeter using 8051
    ML7005 DTMF Transceiver ML7005DTMF Transceiver
    Touch sensor switch using inverters
    Tesla Switch
    Moving Sensor / Detector Schematic Diagram using IC NE555 and Phototransistor L14F
    400 Hz SERVO AMPLIFIER



    Top