| 摘要 |
A flame detection apparatus and method for detecting the presence or non-presence of a flame from a location remote from the flame. The flame detection (34,28,100,120,150) apparatus comprises a conduit extending between the location of the flame to be detected and the remote location, a sound detector (38) connected to the conduit at the remote location for detecting sound conducted to it by the conduit and generating a signal representative thereof and means for receiving the signal and indicating the presence or non-presence of the flame in response thereto. <IMAGE> |
