Well characterised sources of thermal radiation are essential for photometry, radiometry, and
thermometry. They serve as reference radiators for the calibration of detectors and radiance …

A single-chip CMOS smoke and temperature sensor for use as an intelligent fire detector is
proposed. The proposed smoke sensor measures smoke density based on the light …

Developments in the portability of low-cost hyperspectral imaging instruments translate to
significant benefits to agricultural industries and environmental monitoring applications …

Radiometry based on black bodies remains one of the fundamental fields of radiometry.
Black bodies are widely used as standard sources in radiometry of noncoherent optical …

We present photon detection efficiency (PDE) measurements of three different silicon
photomultipliers (SiPM) and report the temperature coefficient of this parameter using a …

This paper describes the development of a fully automated system for collecting high-
resolution spectral data over a forested footprint. The system comprises a pair of off-the-shelf …

The response to temperature of sample hyperspectral radiometers commonly used to
support the validation of satellite ocean color data was characterized in the 400–800-nm …

The quantum efficiency of silicon photodiodes and factors that might be responsible for the
drop in quantum efficiency in the near-infrared spectral range were analyzed. It was shown …

Abstract At the Physikalisch-Technische Bundesanstalt (PTB) silicon diode-based narrow-
band interference filter radiometers (FR) are used for the radiometric determination of …

An investigation of the short-and long-term stability of various low-end and high-end array
spectroradiometers is presented. Potentially weak points of array spectroradiometers with …