The Deep-Sea Gas Analyzer provides an accurate measurement of a variety of gases at depths of up to 2500 meters. The instrument employs a membrane gas extractor and is capable of measuring virtually any gas in LGR’s catalog, including CH4, CO2, and various stable isotopomers. Self-sustained, remote operation is possible using the internal battery, gas handling system, and data storage. Possible applications include carbon sequestration in ocean waters, methane-hydrate studies, and hydrothermal-vent effluent analysis.
As described in the Theory Section (on www.lgrinc.com), the measurement strategy is based on high-resolution direct-absorption spectroscopy. As a result, the instrument is self-calibrating and provides an absolute, accurate gas concentration without reference standards. An internal computer can store data practically indefinitely for applications requiring unattended long-term standalone operation. These analyzers can also send real-time data to a data logger through analog, digital (RS232), and Ethernet outputs.
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Another known type of gases analyzing tool is the infrared gas analyzer. It measures concentration of gases in industry wastes and boilers. It is able to measure sample gas concentration of oxygen.
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