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Okay, got the need for nulling coils figured out.
It would seem that the null location would change just a bit as the operating frequency is changed substantially from the frequency the coil was nulled at.
If this is so, does this infer that there might be a harmonic relationship for a nulled coil? This thought being based upon phase relationships of 0-180° between harmonics.
Example: It was nulled at 10KHz, but it is not nulled when tested at 13KHz and back to nulled again when tested at 20KHz.
And yes, I will eventually test it for myself. But still working my way through ITMD and have to wait on money for the parts not O/H. (Competing priorities)
I ask now because I just can't wait to learn more. As you get older, time becomes a valuable commodity. Ergo, you cheat and ask directions to the pub. After all, which is more important, drinking a cold ale or wandering around trying to impress yourself and others with your path-finding capabilities.
eric
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Learn something new every day for in a land of blind men, the man with one good eye is king.
It would seem that the null location would change just a bit as the operating frequency is changed substantially from the frequency the coil was nulled at.
If this is so, does this infer that there might be a harmonic relationship for a nulled coil? This thought being based upon phase relationships of 0-180° between harmonics.
Example: It was nulled at 10KHz, but it is not nulled when tested at 13KHz and back to nulled again when tested at 20KHz.
And yes, I will eventually test it for myself. But still working my way through ITMD and have to wait on money for the parts not O/H. (Competing priorities)
I ask now because I just can't wait to learn more. As you get older, time becomes a valuable commodity. Ergo, you cheat and ask directions to the pub. After all, which is more important, drinking a cold ale or wandering around trying to impress yourself and others with your path-finding capabilities.
eric
--------------------------------------
Learn something new every day for in a land of blind men, the man with one good eye is king.
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