Performance characteristics of a low-cost, field-deployable miniature CCD spectrometer

Area of Science:

• Analytical Chemistry
• Optical Engineering
• Instrumentation Science

Background:

• Miniature spectrometers utilizing array detectors are emerging as practical, affordable tools for both field applications and industrial process monitoring.
• Traditional benchtop spectrometers, while accurate, are often limited by cost, size, and portability.

Purpose of the Study:

• To evaluate the performance characteristics of a specific miniature spectrometer designed for field and process deployments.
• To compare the performance of this miniature instrument against a conventional benchtop spectrometer.

Main Methods:

• Investigated key performance parameters including wavelength repeatability, photometric linearity, instrumental noise (photometric precision), and instrumental drift.
• Conducted comparative analysis between a miniature array detector spectrometer and a standard benchtop spectrometer under controlled conditions.

Main Results:

• The miniature spectrometer demonstrated acceptable wavelength repeatability and photometric linearity, comparable to the benchtop instrument.
• Evaluations of instrumental noise and drift were performed to quantify the stability and precision of the miniature device.

Conclusions:

• Miniature spectrometers with array detectors present a viable, low-cost alternative for applications requiring spectral measurements outside of a laboratory setting.
• Further validation is recommended for specific field and process environments to confirm optimal performance and reliability.