Ltspice question

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Does anyone know how to couple a tx and rx Coil in ltspice?

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Does anyone know how to couple a tx and rx Coil in ltspice?

Don't know if correct way. I couple Tx to target then target to Rx. https://www.geotech1.com/forums/show...229#post268229

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Does anyone know how to couple a tx and rx Coil in ltspice?

You need to define a coupling coefficient (K).
Type "s" to bring up the dialog box to create a SPICE directive. For example, "K1 L1 L2 1m".
This will loosely couple two coils (L1 and L2), which is good for an IB detector coil. For a transformer, the coupling will be much closer to unity.

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Thanks.

I'm trying to run a sim with those feedback pots which are part of the aquasound coil setup. I want to see roughly how much range on the voltage and phase they impart to the rx coil.
Maybe I can do it in ltspice. Don't know.

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Now I'm thinking how do I get such coils in a balanced state with small residual voltage on rx, I might need a third inductor with same coupling but in the reverse. The residual voltage can be had by manipulating the inductance of L3.

[Qiaozhi]

Now I'm thinking how do I get such coils in a balanced state with small residual voltage on rx, I might need a third inductor with same coupling but in the reverse. The residual voltage can be had by manipulating the inductance of L3.

Simply make the coupling coefficient very small, as in the example above.

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Yes.