I have a question that I hope you can help me with. In schematics below an oscillator is presented that is fed with both AC and DC voltage, to be polarized and to induce movement of it. At the output I have a current that is equal to sum of the currents from two branches and when I try to display them on lock-in amplifier and oscilloscope it saturates and is not displaying anything.
Because of that I want to display just current Im without the Ic current, so I came up with idea of current canceling circuit. My mentor told me that I should use a variable capacitor plus some other components, but online I did not find helpful materials that will help me resolve this issue.
What are your ideas for canceling this Ic currents so I can just have Im?
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