| 摘要 |
<p>A resistive gas sensor has a porous semiconducting oxide body in which the pore surfaces are decorated with a precious metal. The sensor operates at ambient temperatures for detection and measurement of target gases, especially carbon monoxide. For this purpose, parameters of the oxide and of the metallic phase are defined. The sensors operate best in the dark, and may be connected in an oscillator circuit so that the output signals representing gas concentration are frequency signals.</p> |
