1. Atomic Physics Instruments for Modern Physics Teaching Laboratories
Our Atomic Physics Instruments cover five experimental areas in modern physics education: Millikan oil drop experiments, electron specific charge measurement, photoelectric effect and Planck's constant measurement, metal electron work function measurement, and the Franck-Hertz experiment.
Each model addresses a different experimental task. Our range allows customers to purchase individual instruments or combine several types of equipment for modern physics teaching laboratories.
2. Technical Specifications and Product Selection
The following specifications distinguish our instruments by measurement capability, electrical operating range, and experimental configuration.
2.1 OM99 Millikan Oil Drop Apparatus
| Specification | Value |
|---|---|
| Average relative error | Less than 2% |
| Parallel plate spacing | 5.00 mm ±0.01 mm |
| Plate voltage | DC 0–680 V |
| Balance voltage | DC 0–350 V |
| Lifting voltage | 140%–160% of balance voltage |
| Timing accuracy | 0.01 s |
| Oil drop stability time | More than 1 hour |
| Continuous tracking time for charged oil drops | More than 2 hours |
| Display | 15-inch color monitor |
| Button service life | More than 1 million operations |
Product Features and Experimental Use
The OM99 combines a CCD television microscope with an electronic reticle. Oil drop images, voltage information, and timing data are displayed together on a 15-inch color monitor, allowing students to observe the experiment and follow measurement information on the same display.
Both static and dynamic measurement methods are supported. Multiple students can observe the experiment simultaneously.
We also offer two optional accessories to extend the experimental scope:
- Brownian motion observation accessories.
- Mercury lamp accessories for experiments involving changes in oil drop charge.
2.2 LB-EB3 Electron Specific Charge Apparatus
| Specification | Value |
|---|---|
| Geomagnetic field measurement error | ≤1% |
| Electron specific charge measurement error | ≤3% |
| Electron beam focusing times | ≥3 |
| Maximum accelerating voltage | 1000 V |
| Y-axis electric deflection sensitivity | ≥0.38 mm/V |
| Electron helical motion | ≥7π |
Product Features and Experimental Use
The LB-EB3 uses a modular connection structure, allowing different experimental circuits to be assembled for different teaching tasks.
Its experimental scope includes:
- Electric deflection of electrons.
- Magnetic deflection of electrons.
- Electron focusing.
- Electron specific charge measurement.
- Geomagnetic field measurement.
- Observation of electron helical motion.
An electron lens equation verification experiment is also available as an optional experiment.
2.3 LB-PH3A Photoelectric Effect (Planck Constant) Experiment Apparatus
| Specification | Value |
|---|---|
| Microcurrent measurement range | 10⁻⁵–10⁻¹³ A, 7 ranges |
| Dark current | ≤5×10⁻¹³ A |
| Phototube spectral response range | 340–700 nm |
| Voltage stability | ≤0.1% |
| Zero-point drift at the most sensitive range | ≤±0.2% over 30 minutes after 20 minutes of warm-up |
| Planck constant measurement error | ≤3% |
| Phototube power supply range | -3 to +2 V; -3 to +24 V |
Mercury Lamp Filter Center Wavelengths
| Filter | Center Wavelength |
|---|---|
| 1 | 365.0 nm |
| 2 | 404.7 nm |
| 3 | 435.8 nm |
| 4 | 546.1 nm |
| 5 | 578.0 nm |
Aperture Sizes
2, 4, 8, 10, and 12 mm.
Product Features and Experimental Use
The LB-PH3A supports three measurement methods for photoelectric effect experiments:
- Zero-current method.
- Compensation method.
- Inflection-point method.
Its mercury lamp and five wavelength filters provide different light selections for experimental measurements.
For laboratories requiring additional optoelectronic testing, we offer three optional modules:
- Solar cell testing module.
- Photodiode testing module.
- Photoresistor testing module.
These modules extend the instrument's experimental scope to additional optoelectronic testing applications.
2.4 LB-MEP Comprehensive Experimental Instrument for Metal Electron Work Function
| Specification | Value |
|---|---|
| Voltmeter range | 0–1999 V |
| Voltmeter accuracy | 1 V |
| Ammeter range | 0–1.999 A |
| Ammeter accuracy | 1 mA |
| Microammeter range | 0–1999 μA |
| Microammeter accuracy | 1 μA |
| Anode voltage | 0–120 V |
| Anode voltage stability | ≤0.2% |
| Filament current | 0.5–0.8 A |
| Filament current stability | ≤0.2% |
| Excitation current | 0–0.8 A |
| Excitation current stability | ≤0.2% |
Product Features and Experimental Use
The LB-MEP uses an external diode module, with a circuit connection diagram printed on the instrument panel. Its power supply includes a protection circuit.
The instrument supports experiments involving metal electron work function, electron specific charge, and charged particle motion in electromagnetic fields.
2.5 LB-FH Frank-Hertz Experiment Apparatus
| Specification | Value |
|---|---|
| Gas-filled tube | Argon-filled four-electrode tube |
| Nominal tube service life | ≥3000 hours |
| Microcurrent measurement range | 10⁻⁶–10⁻⁹ A, 4 ranges |
| Minimum measurable voltage | 0.1 V |
| Minimum measurable current | 10⁻¹⁰ A |
| Number of spectral peaks | ≥8 |
| Number of spectral valleys | ≥6 |
| Filament voltage | DC 3–6.2 V, accuracy ±1% |
| First grid voltage | DC 0–5 V |
| Second grid voltage | DC 0–120 V |
| Retarding voltage | DC 0–15 V |
| Sawtooth wave amplitude | ≥60 Vpp |
| Sawtooth wave frequency | 200 Hz ±2% |
Product Features and Experimental Use
The LB-FH uses an argon-filled four-electrode tube for the Franck-Hertz experiment.
Digital encoders provide adjustment, while five groups of LED digital displays show operating values. Users can perform manual measurements or connect an external oscilloscope to observe dynamic experimental curves.
3. Optional Accessories and Experimental Configurations
We offer specific optional accessories and modules for selected instruments in our Atomic Physics Instruments range.
| Product | Available Optional Items |
|---|---|
| OM99 Millikan Oil Drop Apparatus | Brownian motion observation accessories |
| OM99 Millikan Oil Drop Apparatus | Mercury lamp accessories for changing oil drop charge |
| LB-EB3 Electron Specific Charge Apparatus | Electron lens equation verification experiment |
| LB-PH3A Photoelectric Effect Apparatus | Solar cell testing module |
| LB-PH3A Photoelectric Effect Apparatus | Photodiode testing module |
| LB-PH3A Photoelectric Effect Apparatus | Photoresistor testing module |
These options allow customers to specify the experimental functions and accessories required for their orders. Please indicate the required items when requesting a quotation.
4. Manufacturing and Quality Management
4.1 Physics Teaching Instrument Manufacturing
We have developed and manufactured physics teaching instruments since 1999. Our first product was a Millikan oil drop experimental instrument based on a television microscope.
Our manufacturing business covers several areas of physics education:
- Mechanics experimental instruments.
- Thermal physics experimental instruments.
- Acoustics experimental instruments.
- Optics experimental instruments.
- Electrical experimental instruments.
- Atomic physics experimental instruments.
- New energy experimental instruments.
This product range enables us to supply different categories of physics laboratory equipment through one manufacturer.
4.2 Production Resources and R&D Team
Our production resources include:
- Oscilloscopes.
- Frequency counters.
- Machine tools.
- Program simulation equipment.
- Programmers.
We also have a professional R&D team involved in physics teaching instrument development. Our technical work includes software related to atomic physics experimental analysis and information management.
4.3 Quality Management and Customer Support
Our quality management system is certified to GB/T 19001-2016 / ISO 9001:2015 for the production and service of university physics experimental instruments and equipment. The stated certificate validity date is November 8, 2026.
For our physics teaching instrument business, customer support includes:
- One-to-one pre-sales consultation.
- Packaging solution consultation.
- Production progress updates.
- Pre-delivery quality management.
- After-sales follow-up.
5. Request a Quotation for Atomic Physics Instruments
We welcome inquiries from importers, wholesalers, distributors, and educational equipment suppliers interested in our Atomic Physics Instruments.
To help us prepare an appropriate quotation, please indicate:
- Required product name or model.
- Order quantity.
- Optional accessories or experimental modules, if required.
- Destination country or market.
- Specific technical or packaging requirements, if applicable.
Our sales team will review your inquiry and contact you within 24 hours.
As one of the most professional amo physics instruments manufacturers and suppliers in China, we're featured by quality products and good service. Please rest assured to buy customized amo physics instruments from our factory. If you have any enquiry about pricelist, please feel free to email us.
Electron Specific Charge Apparatus, Frank Hertz Experiment Apparatus, Millikan Oil Drop Apparatus