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A versatile spectroradiometer and its applications.

C L Sanders¹, W Gaw

¹Division of Applied Physics, NationalResearch Council, Ottawa.

|January 12, 2010

Summary

This summary is machine-generated.

This study details a spectroradiometer for measuring spectral radiance, irradiance, transmittance, and reflectance. It automates data collection and analysis, enabling precise calibration of spectral standards and color temperature scales.

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Area of Science:

Optical Physics
Metrology
Instrumentation

Background:

Accurate spectral measurements are crucial for scientific research and industrial applications.
Existing methods for spectral analysis can be time-consuming and prone to error.

Purpose of the Study:

To describe a novel spectroradiometer designed for efficient and accurate measurement of spectral radiance, irradiance, transmittance, and reflectance.
To demonstrate the instrument's capabilities through experimental results and applications.

Main Methods:

Utilized a Hilger D300 monochromator for wavelength selection.
Employed an integrating digital voltmeter with a 10-second gate for precise photocurrent measurements.
Automated data acquisition using punched cards and subsequent analysis via a digital computer.

Main Results:

The spectroradiometer successfully performs measurements of spectral radiance, irradiance, transmittance, and reflectance.
Demonstrated the instrument's performance through experimental data.
Successfully calibrated spectral radiance and irradiance standards using a blackbody at the freezing point of platinum.

Conclusions:

The developed spectroradiometer offers an efficient and accurate method for spectral analysis.
The instrument facilitates the development of advanced color temperature scales.
The automated data processing enhances the reliability and speed of spectral measurements.