Damped RLC Circuit (5J30.11)
/Damped_RLC_Circuit_(5J30.11).jpg)
/Damped_RLC_Circuit_(5J30.11)_2.jpg)
The capacitor in a RLC circuit is charged with a battery and then switched to discharge through a resistor and an inductor. The high frequency oscillation from the LC "tank circuit" is shown on an oscilloscope. Changing the capacitance changes the frequency, and changing the resistance changes the damping.
The inductor is fixed at 150 Henries. The capacitors are 10μF (qty: 1), 22μF (qty: 2), and 47μF (qty: 1). The resistor is 10kΩ (max).
/Measure_Capacitor.jpg)
/Voltage_Capacitor_1.bmp)
/Voltage_Capacitor_2.bmp)
/Voltage_Capacitor_3.bmp)
/Measure_Inductor.jpg)
/Voltage_Inductor_1.bmp)
/Voltage_Inductor_2.bmp)
/Voltage_Inductor_3.bmp)
1) Damped Harmonic Oscillator, Damping Coefficient, and Underdamped/Critical/Overdamped Oscillators: Page 1 and Page 2. [HyperPhysics].