| 摘要 |
Disclosed is a method and apparatus for detecting the type of anesthetic gas. The method comprises the steps of: passing a plurality of light beams through a gas chamber injected with said anesthetic gas, wherein, said anesthetic gas has respective absorption characteristic with respect to each light beam; detecting the light intensities of the attenuated light beams absorbed by the anesthetic gas, respectively, to obtain the relative absorption coefficients of one of the attenuated light beams with respect to the others; mapping the obtained relative absorption coefficients into a coordinate system, which corresponds to said relative absorption coefficients; and determining the type of said anesthetic gas based on the mapping position of said relative absorption coefficients in the coordinate system.
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