Perform CRO based experiment using Virtual Reality

Note: This is a VR-based experiment; in the simulation, you can learn from scratch how to download the APK and use VR, while the Procedure section explains the actual lab experiment steps as performed in the Virtual Reality (VR) Lab.

Actual vs Virtual Reality Lab Procedure

1. Circuit Assembly :

Actual (Physical Wiring)
Select the physical resistor and capacitor components. Physically push the component leads into the holes on the breadboard to complete the R-C series circuit.

Virtual Reality (VR) Lab Procedure
The user uses the VR Controller's grip/trigger action to virtually pick up the resistor and capacitor (as seen in the video) and snap them into the correct holes on the virtual breadboard.


2. Signal Input Connection :

Actual (Physical Wiring)
Connect the Function Generator's output using BNC cables and probes to the input points of the R-C circuit on the breadboard.

Virtual Reality (VR) Lab Procedure
The virtual Function Generator (Signal Source) is already connected to the breadboard. The system ensures the wire terminals connect logically based on the virtual circuit rules.


3. CRO Probe Connection :

Actual (Physical Wiring)
Attach the CRO Probe to the specific test points to measure the output signal (e.g., across the capacitor). Ensure probes are correctly calibrated and grounded.

Virtual Reality (VR) Lab Procedure
The user virtually grabs the CRO probe and clicks on the designated node of the R-C circuit on the virtual breadboard. The system immediately draws the virtual connection wire.


4. Instrument Power & Settings :

Actual (Physical Wiring)
Turn on the CRO and Function Generator. Adjust the Time/Div and Volts/Div knobs on the CRO screen until a stable, visible waveform appears.

Virtual Reality (VR) Lab Procedure
The user interacts with the virtual CRO knobs using controller gestures (e.g., rotary motion or virtual slider) to adjust the scale. The waveform appears instantly on the virtual CRO screen, reflecting the circuit's dynamic response (as seen in the video, 0:40).


5. Measurement & Analysis :

Actual (Physical Wiring)
Use the physical graticule on the CRO screen and knob settings to calculate the Time Constant (Ï„). Record the value.

Virtual Reality (VR) Lab Procedure
The user reads the virtual graticule. The VR system can optionally provide an overlay hint or calculate the value, while demonstrating how the waveform changes when virtual components are swapped.


6. Iteration & Validation :

Actual (Physical Wiring)
Carefully disconnect the circuit. Swap the resistor or capacitor with a new physical value. Re-wire the circuit and repeat the measurement.

Virtual Reality (VR) Lab Procedure
The user uses the controller to swap the virtual resistor or capacitor with a click. The CRO waveform updates instantly to reflect the new calculated time constant—allowing rapid testing of variables.