Apparatus of Millikan's Experiment

The Apparatus of Millikan's Experiment is designed to provide precise measurements and an enhanced approach to studying the quantized nature of electrical charge. Unlike conventional systems that rely on direct eyepiece observation and manual timing, this apparatus incorporates a CCD image acquisition system that simultaneously displays voltage, timing, and oil drop images on an LCD monitor. The apparatus enables students to verify the quantum nature of electrical charges, determine the elementary charge of an electron, observe Brownian motion, and investigate the statistical distribution of oil droplet displacement. Its modern imaging system provides improved visibility, measurement accuracy, and user convenience, making it ideal for advanced physics laboratories. Physics Lab Experiments from Atico Exports.

• Verify the Existence of Positive and Negative Electrical Charges
• Demonstrate the Quantized Nature of Electrical Charge
• Measure the Elementary Charge of an Electron
• Observe and Measure Brownian Motion (Optional)
• Study the Normal Distribution of Displacement Probability (Optional)

Operating Voltage Between Upper and Lower Plates:

• DC ±0 – 700 V
• Adjustable
• 3½ Digit Display
• Resolution: 1 V

Elevation Voltage:

• 200 – 300 V

Distance Between Upper and Lower Plates:

• 5 ± 0.01 mm

Objective Lens Magnification:

• 60×
• 120×

Electronic Timer:

• 0 – 99.99 s
• Resolution: 0.01 s

Electronic Graduation Scale:

Type A:

• 8 × 3 Grid
• 0.25 mm/div with 60× Objective

Type B:

• 15 × 15 Grid
• 0.08 mm/div with 60× Objective
• 0.04 mm/div with 120× Objective

Parts List:

Main Unit:

• Quantity: 1

Oil Sprayer:

• Quantity: 1

Oil Bottle (15 mL):

• Quantity: 1

LCD Monitor (9-inch):

• Quantity: 1

120× Objective Lens:

• Quantity: 1

Power Cord:

• Quantity: 1

• Electronic graduation scales remain stable and are unaffected by display distortion
• High-contrast imaging provides clear and bright observation of oil droplets
• Enhanced observation of Brownian motion using the 120× objective lens
• Graduation scales, voltage, timing, and oil drop images displayed on a single screen
• Compatible with televisions, projectors, and recording devices
• CCD Image Acquisition with LCD Display to Reduce Eye Fatigue
• Electronic Graduation Scales Displayed On-Screen
• Simultaneous Display of Voltage, Time, and Oil Drop Images
• Optional Brownian Motion Experiment with 120× Objective Lens
• Clear and High-Contrast Oil Drop Imaging
• Stable and Accurate Measurement System