Laboratory Spectrometer

Product Code : SCL-LAO-12078

The Standard Laboratory Spectrometer is a precision-engineered optical instrument used for measuring the properties of light over a specific portion of the electromagnetic spectrum. Designed for physics undergraduate students and laboratory researchers, this apparatus enables precise angular measurements to determine refractive indices and investigate spectral line profiles with high fidelity.

Product Description

This high-precision spectrometer features a heavy cast-iron base providing exceptional stability to eliminate structural movement during alignment. The instrument integrates a calibrated vernier scale, a fully adjustable collimator with a brass slit, and a high-resolution telescope assembly. The rugged mechanical adjustments ensure smooth, backlash-free rotation of the prism table and telescope arm.

For institutions upgrading their advanced facilities, this apparatus delivers superior long-term academic utility. It allows students to transition smoothly from qualitative light observation to quantitative spectral analysis, serving as an essential cornerstone for advanced optical education.

Key Features

• Precision Vernier Scale: Features dual readouts with high angular resolution to allow precise readings down to 1 arcminute.
• Adjustable Collimator: Equipped with a finely machined slit mechanism and an achromatic focusing lens to project perfectly parallel rays.
• High-Resolution Telescope: Integrates a rack-and-pinion focusing assembly with a crosshair eyepiece for accurate line centering.
• Heavy Cast-Iron Base: Provides solid mechanical dampening to maintain optical axis calibration during student handling.
• Leveling Prism Table: Designed with a three-point leveling system and engraved concentric alignment circles to secure diverse optical elements.

Technical Specifications

What's Included in the Kit

• 1 x Standard Laboratory Spectrometer main base assembly
• 1 x Collimator assembly with adjustable slit plate
• 1 x Telescope assembly with crosshair eyepiece
• 1 x Adjustable prism table platform
• 1 x High-tensile diffraction grating holder mount
• 1 x Hard-shell wooden storage case

Applications / Uses

• Determining the angle of minimum deviation for different glass components to calculate refractive index values.
• Measuring elemental emission spectral lines from mercury, sodium, or hydrogen gas discharge tubes.
• Calculating the line density of an optical diffraction grating by analyzing diffraction maxima spacing using the classical grating formula:

• Integrating seamlessly alongside our high-resolution optics experiment kits to investigate polarization and wave optics parameters.

How to Use the Standard Laboratory Spectrometer

1. Place the spectrometer base on a level, vibration-free laboratory workbench sheet.
2. Adjust the telescope eyepiece to bring the internal crosshairs into a sharp, clear focus profile.
3. Point the telescope directly at the collimator axis and slide the collimator tube until a sharp image of the entry slit resolves on the crosshairs.
4. Place your dense flint glass prism or grating securely onto the centered platform table within its designated alignment tracks.
5. Rotate the telescope arm horizontally to track the refracted or diffracted spectral line configurations.
6. Read the dual vernier window indices to record the exact angular coordinates for final wavelength analysis calculations.

Safety Note: Never point the collimator entry port directly at high-intensity unattenuated laser outputs without checking that users are wearing appropriate safety eyewear.

Care & Maintenance

• Cleaning: Dust the glass objective lenses carefully using a specialized lens brush; wipe the metal vernier scales with a dry, non-abrasive lint-free cloth.
• Storage: Keep the apparatus enclosed inside its padded wooden presentation storage case when not in use to avoid ambient moisture degradation.
• Handling: Always lift the entire instrument by its heavy cast-iron base rather than grabbing the collimator tube or telescope assembly barrel.

Why Choose Science Lab Supplies

Science Lab Supplies is an established manufacturer and premier global exporter of reliable laboratory instruments and classroom apparatuses. With decades of technical production experience, we construct robust, high-fidelity systems designed to handle the daily demands of university physics centers. Our engineering plants follow strict quality control checks to guarantee consistent geometric and mechanical precision across every batch. Backed by highly optimized international logistical matrices, we ensure prompt, safe delivery of comprehensive optical didactic models to clients worldwide.

Frequently Asked Questions

How do you read the dual vernier scale on this spectrometer?

The dual verniers are spaced 180° apart to eliminate eccentricity errors. Users read the primary degrees from the main circular scale and add the fractional minutes from the vernier plate.

Can this spectrometer hold standard diffraction gratings?

Yes, the kit includes a universal grating clamp mount that attaches securely to the center prism table to host common 15,000 lines-per-inch grating plates.

What type of light source works best with this instrument?

The instrument is optimized for monochromatic light sources like sodium vapor lamps or polychromatic discharge tubes containing mercury gas.

Is the telescope focus adjustable?

Yes, the telescope assembly features a smooth rack-and-pinion control knob that allows users to adjust focus paths quickly for individual student eyesight variations.

Does the unit require an electrical connection?

No, the Standard Laboratory Spectrometer is a purely mechanical and optical passive instrument that operates using external laboratory illumination sources.

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