RLC Ringing

5J30.10 | See parts
Catalog: 
5J30.10
Location: 
See parts
Room: 
PS F175
Quantity: 
1
Setup Time: 
45 min
Instructors: 
Adams
  • This RLC circuit allows the capacitance to be varied. Frequency is 450 Hz, and r
    This RLC circuit allows the capacitance to be varied. Frequency is 450 Hz, and resistance is set to 500 ohms. Prevent floating ground by grounding C.
  • This RLC circuit allows the inductance to be varied by inserting an iron core. C
    This RLC circuit allows the inductance to be varied by inserting an iron core. Capacitance is .01 mf, frequency 450 Hz, and R is 80 ohms. The LCR are in series and the oscilloscope is parallel across the capacitor. Capacitor is hooked to ground.
  • Set frequency to 2300 Hz resistance to 300 ohm. The inductance has a range of 6
    Set frequency to 2300 Hz resistance to 300 ohm. The inductance has a range of 6 mH when the iron core is out to 38 mH when it is inserted. The Capacitance has a range of 140 to 640 pF. This is maximum range for C and minimum range for L. The resistance is 10 ohms.
  • Capacitance is maximum range and inductance is maximum range as well. The resist
    Capacitance is maximum range and inductance is maximum range as well. The resistance is 10 ohms.
  • Capacitance is minimum range and inductance is minimum range as well.
    Capacitance is minimum range and inductance is minimum range as well.
  • Capacitance is maximum range and inductance is at a minimuml range. The resistan
    Capacitance is maximum range and inductance is at a minimuml range. The resistance was raised to 30 kilo ohms.
  • Capacitance is minimum range and inductance is a maximum range.
    Capacitance is minimum range and inductance is a maximum range.
Description: 

A square wave source causes ringing in an LCR circuit. The capacitor and inductor can be varied separately.

Instructions: 


Set the function generator to square wave and 2300Hz.
Set resistance to 100 ohms.

To switch from the variable C to the variable L disconnect the 2 BNC to RCA splitters from channel 1 and 2 on the oscilloscope and then connect the other 2 BNC to RCA splitters from the other circuit.

The oscilloscope sometimes has a floating ground problem. This can be avoided by placing the component being measured, capacitor in this case, to the ground of the source, function generator here.

Purpose: 
As the C and L vary the frequency of the ringing varies.
Parts: 


Oscilloscope + camera(14)
Inductor 85 mH(Df2)
Big Inductor 9B20.21(Df2)
Air Capacitor(variable)(Ca2)
Decade Capacitor(De5)
2 Decade resistor(De3)
2 function generators(Dh2)
4 BNC to RCA spltters
cables 2 short YG
2 long YO

Link: 
http://pirt2.asu.edu/DCS/5J30-10%20RLC%20ringing.doc