Tx and Rx coil inductance ratio

[6666]

i have big article of Ivan Kostin about the matter but main problem its needed in translation from russian.

Hi KT315 I can try and translate it in google cloud translate

[kt315]

i have big article of Ivan Kostin about the matter but main problem its needed in translation from russian.

[kt315]

primary you have to know good that ideal transformer is with equal windings - primary one has to be sure like secondary one,
in inductance and number of turns. just then you CAN balance it in sure zero.
anotherway you get the left phase and the left voltage on Rx.

[Nandor]

Indeed it is a aircore transformer. I tried several coils for my detectors with different inductances and the Tx is very tolerant but the Rx coil is not so forgiving as the Tx. Why is that?

Thank you for the info!

[kt315]

a coil is a transformer. do you measure inductance of power transformer coils? not. because you know that you do not need.
so why here you operate by inductance?
sorry for my english. forget inductance ratio. you must say just about the transformation ratio.



except some of the Minelab coils.

where you see Minelab stuff here??? ML must do not exist for you. we do some projects for self and ML does not help us never.
forget Minelab.

[Nandor]

Hello

Could somebody explain me how electronics engineers decide the Tx and Rx coil inductance ratio. Also why Rx coils in general have larger inductance than Tx coils,except some of the Minelab coils.
I know that Tx has to have low resistance but what is the logic behing the inductance ratio of the search coil design.

Regards