hello
I have to find the value of an unknown inductor. I researched a number of methods some requiring a current source. I didn't use those as I don't understand that too much. I chose an option that required a scope, function generator and resistor in series with the inductor.
my instructor said that I could find the inductive reactance by putting a resistor in series with the inductor. putting an AC voltage across them and find the output voltage. this voltage across the known resistor should give current. this current goes through the inductor. I should be able to find the resistance using ohms law. voltage over unknown inductor over current. I tried this a few different ways and couldn't find the correct answer. I used an lcr meter to find the inductance.
is this method, the voltage divider method, correct? does it work?
thanks
simon
I have to find the value of an unknown inductor. I researched a number of methods some requiring a current source. I didn't use those as I don't understand that too much. I chose an option that required a scope, function generator and resistor in series with the inductor.
my instructor said that I could find the inductive reactance by putting a resistor in series with the inductor. putting an AC voltage across them and find the output voltage. this voltage across the known resistor should give current. this current goes through the inductor. I should be able to find the resistance using ohms law. voltage over unknown inductor over current. I tried this a few different ways and couldn't find the correct answer. I used an lcr meter to find the inductance.
is this method, the voltage divider method, correct? does it work?
thanks
simon