| 摘要 |
<p>A gas sensor (300) for sensing gases in a stream of gas/ particles, said sensor comprising: an outer casing (301, 302) having one end (304) adapted to be exposed to said stream of particles; an electro-chemical sensor (500) for sensing chemicals in a gas; and a gas permeable material (504) positioned between said electro- chemical sensor and said exposed end of said outer casing, for allowing gas to permeate to said electro-chemical sensor from said exposed end.</p> |
