I have been looking for a type of inductor or coil to pickup the magnetic flux lines from a pair of passing magnets to pass an electrical signal. I am not sure what type to use in this situation. any suggestions?thank you,Michael
It depends on the specific situation, which you haven't described.
to be more specific, I am looking to make a generator setup that will use either wind or water. I am using magnets and coils to generate the electricity. asking for advice at to the best type of coil to use
I found that the open frame unshielded wirewound inductors work great to create a magnetic field, thus would also be great to pick up a magnetic field. Anything from 100 uH up would work.
AN OPEN FRAME INDUCTOR WILL BE FINE, BUT THE VOLTAGE PICKED UP WILL BE HIGHER IF INDUTANCE IS HIGHER, AND ALSO IF THE RATE OF CHANGE OF MAGNETIC FIELD IS HIGH. FOR EXAMPLE A SHARP COUPLE OF TEETH PROJECTIING OUT OF SAY A SHAFT COVERING SAY 10 DEG EACH IS MUCH BETTER THAN TWO TEETH SPREAD OVER 120 DEG EACH. AND IF SHAFT SPEED IS HIGHER, THE VOLTAGE PICKED UP WILL BE HIGHER.
