So, I've just performed a lab on measuring the resonance of an LCR circuit. I rearranged the circuit so each time the component in question had one lead on the ground plane, and then measured it's frequency response.
Each time, an oscilloscope was attached across the component in question. When the natural frequency was measured for each component, each time it was different.
I'm assuming this is because the oscilloscope itself has an inductance/capacitance and therefore adds a parallel component to each measurement. I want to calculate the value of this parasitic effect. How would I go about doing that?
Inductor Value: 109.4 mH
Capacitor Value: 2.116 nF
Resistor Value: 327.2 Ω
The natural frequency when measured across each component was as follows...
Resonant Frequency of Inductor: 10.1kHz
Resonant Frequency of Capacitor: 10.075kHz
Resonant Frequency of Resistor: 10.425kHz