Hi, I have am looking for an oscillator architecture to drive a variable inductance tank. I want to be able to quantify a changing inductance. I have tested the colpitts architecture below by observing peak voltage however my concern is of the temperature effects of using 2 capacitors for the tank - the 2 capacitors may have different drift coefficients making compensation more challenging. Is there a preferred oscillator architecture for an application like this using 1 capacitor and 1 inductor? Unrelated, is there anyway to maintain constant amplitude of the tank and measure the current required to maintain the constant amplitude and inductance changes?