I'm new here so please excuse me if this is in the wrong section.

 

Is this true?

 

Is there a simple tool/method to measure any loss which can be acturatly reproduced over time e.g. every 6 months?

 

I have been told that magnets loose their strength with use. I've used one in my tool box for sometime and it still seems as powerful as when I first got it.

 

Any help with this will be very much appreciated.

 

Bern

Tewkesbury

(That's not an instruction)

There are devices you can by which are based on the Hall effect. I think thay are called Guass meters or Magnetometer or something like that. You can get little hand held dials which register field strength as you bring them closer to the magnet. My dad had one he used to test to see if my car alternator was working properly.

 

Type: 'measuring magnetic strength' into google - there is a fair bit of info there.

Thanks for such a quick reply.

 

This is great - I'll get "Googling".

 

B

There are a few different names for a group of devices that do this... Guass meters and hall probes are the common ones...

I think radio shack sells a small hall effect device, that includes instructions on how to build a gauss meter out of it.