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What is a remote sensor and what are they used for?

A remote sensor is an optical instrument that measures some property of the atmosphere or earth from a distance which can be meters to hundreds of kilometers. Resonance makes two types of remote sensors. The first type employs a spectrometer to analyze the spectrum of gases in the atmosphere. The second type uses a special camera to create two dimensional images of the gas distribution of gas plumes. Both types of remote sensors can help predict volcanic eruptions and measure atmospheric trace pollutants and other gases like CO2, CO, NO2 CFCs N2O that have local and climatic impacts.

GCSO2-1 SO2 Gas Camera

The Resonance GCSO2-1 is a UV-sensitive camera that compares images in two spectral bands to produce concentration maps of SO2 plumes. This method is based on differential optical absorption spectroscopy (DOAS) methodology for remote sensing of atmospheric gases (Refs 1-12).

RMD Expedition Resonance Mini DOAS RMD (I, II, Min)

RMD is a compact UV/visible spectrometer system designed for remote sensing of atmospheric gases and is the first of a series of spectrometers designed to have multi-gas capabilities.


MicroMAPS is a gas filter correlation radiometer capable of detecting trace atmospheric gasses by remotely sensing their infrared (IR) absorption characteristics.

COSPEC Correlation Spectrometer

SO2 and NO2, gases selectively and characteristically absorb light from scattered solar radiation (skylight) as it passes through the atmosphere.

Gas Camera

The Resonance gas camera is an inexpensive and compact detector to create a 2D concentration map of a target plume. This camera is single gas sensor able to detect SO2 or NO2.

Resonance UAV Gas Monitoring System

Being an easily portable system, the Resonance Gas Camera is designed to be small enough to be carried by an unmanned Aerial Vehicle (UAV).


GASCOFIL is an optical instrument for detecting trace gases in the ppb to percent range concentrations.

We have comprehensive lines of Spectrometers, Monochromators and Light Sources from Vacuum Ultraviolet (VUV) to Visible (Vis) and we also make custom designed components and systems.  If you'd like to speak with us directly please feel free to either give us a call or contact us.

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Resonance LTD Optical Solutions & Technologies - Resonance designs and manufacturers optical instruments for research and environmental monitoring. We specialize in the production of Spectrometers, Monochrometers, VUV to IR Light Sources and Detectors.  

143 Ferndale Drive North, Barrie, ON L4N 9V9 Tel: 705-733-3633 Fax: 705-733-1388 Email: sales@resonance.on.ca