Illustration of system configuration
1 wind proof, 2 insulation ring,
3 oil drop, 4 clamping spring,
5 upper polar plate, 6 illuminating lamp holder, 7 light guiding column, 8 lower polar plate
Oil drop image acquired by VGA camera
(Click photo to enlarge)
Features
Compact structure and stable performance
Easy to use
Affordable
Optional VGA video camera for accurate measurement on LCD monitor
Introduction
This LEAI-40 apparatus of Millikan oil droplet experiment is designed to verify the quantum nature of electrical charges, measure the elementary charge of an electron, and observe the Brownian motion. Using an optional VGA camera with built-in electronic grid lines, oil drop image can be acquired and displayed in real-time on a LCD monitor for more convenient observation and accurate measurement. It is an ideal teaching apparatus for physics laboratories in colleges and universities.
The instruction manual includes experimental configurations, principles and step-by-step instructions. Please click Experiment Theory and Contents to find more information about this apparatus.
Specifications
| Description | Specifications |
| Voltage between upper & lower plates | 0 ~ 500 V |
| Distance between upper & lower plates | 5 mm ± 0.2 mm |
| Magnification of measuring microscope | 30 X |
| Linear field of vision | 3 mm |
| Total division of scale | 2 mm |
| Resolution of objective lens | 100 lines/mm |
CMOS VGA Video Camera (Optional) | Sensor size: 1/4" |
| Resolution: 1280 × 1024 | |
| Pixel size: 2.8 μm × 2.8 μm | |
| Bit: 8 | |
| Output format: VGA | |
| Length measurement on screen with cross line cursor | |
| Function setting & operation: via keypad and menu | |
| Camera to eyepiece tube adapter lens: 0.3 X | |
| Dimensions | 320 mm x 220 mm x 190 mm |
Parts List
| Description | Qty |
| Main Unit | 1 |
| Oil Sprayer | 1 |
| Clock Oil | 1 bottle, 30 mL |
| Power Cord | 1 |
| Instructional Manual | 1 |
| CMOS VGA Camera & Adapter Lens (Optional) | 1 set |
Illustration of system configuration
1 wind proof, 2 insulation ring,
3 oil drop, 4 clamping spring,
5 upper polar plate, 6 illuminating lamp holder, 7 light guiding column, 8 lower polar plate
Oil drop image acquired by VGA camera
(Click photo to enlarge)
