Explosimeter
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An explosimeter is a device which is used to measure the amount of combustible gases present in a sample. The device operates on the principle of resistance proportional to heat -- a wire is heated, and a sample of the gas is introduced to the hot wire. Combustible gases burn in the presence of the hot wire, thus increasing the resistance and disturbing a Wheatstone bridge, which gives the reading.
A flashback arrestor is installed in the device to avoid the explosimeter igniting the sample external to the device.
[edit] External links
- http://www.marineengineering.org.uk/testequipment/explosimeter.htm (select explosimeter from the left frame)
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