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Spectrometer without cover

Fiber and communications infrastructure knowledge brief Published 17 Jan 2026

Prepared for preliminary research by the ROGER FIBRE knowledge desk. Confirm optical interfaces, port or core capacity, electrical input and output, enclosure protection, thermal design and installation limits against current standards and product documentation.

Spectrometers and cuvettes without covers are available for portable, handheld, and laboratory use, offering flexibility for open-sample measurements.

Open Cuvettes for Spectrophotometers

Cuvettes without stoppers are commonly used in spectrophotometry when direct access to the sample is needed. For example, polystyrene cuvettes without stoppers are packaged in matched sets to remain dust- and scratch-free, and are suitable for assays like BCA protein or Smith assays using Spectroquant® Prove photometers (Sigma-Aldrich). Quartz cuvettes without covers are also available, offering high UV and visible light transmission, excellent temperature resistance, and chemical durability, making them ideal for precision experiments in UV-visible spectrophotometers.

Portable and Handheld Spectrometers

Handheld spectrometers, including NIR devices, are designed for field use and can operate without a traditional cover over the sample area. These devices are compact, battery-powered, and controlled via mobile apps or computer interfaces. They allow rapid measurements by placing the scanning window directly against the sample, making them suitable for textiles, plastics, and other materials.

Ultra-

Compact Pocket Spectrometers

Innovative designs, such as the pocket spectrometer, integrate a spectral sensor (e.g., AS7341) with a microcontroller (e.g., M5StickC) to create a complete spectrometer barely larger than a cuvette itself. These devices are standalone, with their own display and interface, and do not require a cover, enabling easy, portable spectroscopy for educational, research, or citizen science applications.

Considerations

When using spectrometers or cuvettes without covers: Sample exposure: Open cuvettes may be more prone to contamination or evaporation. Measurement accuracy: Ensure the spectrometer design accounts for stray light or ambient interference. Material compatibility: Some cuvettes are incompatible with certain solvents, so check chemical resistance.

Overall, spectrometers and cuvettes without covers provide flexibility for direct sample access, portability, and ease of use in both laboratory and field settings, while requiring careful handling to maintain measurement accuracy and sample integrity.

Spectrometer without cover - ROGER FIBRE ATELIER [PDF]

Spectrometer without cover

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Technical note

This reference is intended for preliminary fiber and communications infrastructure research. Optical interface, fiber type, port or core capacity, electrical input and output, enclosure protection, cooling, installation limits and applicable standards must be verified for the specific project.

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