I'm building a device to measure the RPM of a wheel, and I'm using a hall effect sensor and a magnet. I have my sensor hooked up to a 5V supply on the supply pin, ground on the ground pin, and my multimeter on the output pin. I powered up the supply and moved a 1/2" ceramic magnet by the front of the sensor, and saw a very minimal (.01V to .03V) change. I haven't used hall effect sensors before so I'm not quite sure if I'm doing it correctly. Do I need an earth magnet, or perhaps a neodymium? Or does the current through it change and level off so fast that I'm getting a minimal dc voltage change? I'd check but I dont have an Oscope. Any help would be greatly appreciated.
Oh and here is the hall-effect sensor I'm using... https://mouser.com/catalog/specsheets/ProductSheet_SS351_451.pdf
Oh and here is the hall-effect sensor I'm using... https://mouser.com/catalog/specsheets/ProductSheet_SS351_451.pdf