UV (SO2) Camera

We provide ready-to-use, user friendly UV (SO2) cameras for measurement of SO2 fluxes at > 1 Hz (and up to 25 Hz). Our UV (SO2) cameras have compact, robust, and easy-to-use configuration, allowing its use in both volcano surveys and permanent installations. A camera system is assembled from commercially available hardware using custom-developed setup and user-friendly configuration.

The UV (SO2) camera system is composed of (i) 2 cameras sensible to UV-radiation (JAI CM-140GE-UV), (ii) 1 visible camera (DLINK DCS-310), and (iii) 1 UV spectrometer (Ocean-Optics USB2000+). The JAI CM-140GE-UV cameras are equipped with two different band-pass optical filters with Full Width at Half Maximum (FWHM) of 10 nm, and a central wavelength of 310 and 330 nm respectively. Simultaneous image acquisition from these two cameras allows a direct measure of UV absorption by volcanic SO2.

The cameras are progressive scan cameras with 10 or 8-bit video output in Gigabit Ethernet, and use standard interface (GigE Vision) capable of transmitting large amounts of uncompressed image data through LAN cables over long distances. Each camera has 1/2" CCD with square pixels, offering superb image quality. The high-speed shutter function and asynchronous random trigger mode allows the camera to capture high quality images of fast moving objects. UV absorption images obtained with the UV cameras are calibrated in real-time using the UV spectrometer, that provides one UV spectrum averaged over a portion of the UV cameras field of view every ~5 seconds. Finally, visible images are acquired (at resolutions of up to 1280 x 800 with a frame rates up to 30 fps) with the DLINK DCS-310 camera. These visible images are used for straightforward assessment of weather and visibility conditions in a volcano summit region. The whole camera system is powered with 12V batteries and its average power consumption is of 15W in fully operational mode.

The instrument is sold in 2 different possible configurations: