摘要:
An assembly for a combustion chamber monitoring camera comprises an image-forming optical system (20) whose object space (26) is a combustion chamber and whose image plane (5) is coincident with the photosensitive element of the camera, and whose focal point (24) on the object space side is situated outside the optical system (20), and a structure (22) enclosing the optical system (20). on the object space side of the optical system (20), a solid baffle plate (38) is placed having a hole (1) made cocentrical with the center axis of the optical system (20) and situated at the focal point (24) of the entire optical system on the object space side, or in the vicinity thereof, and the structure (22, 40) encloses the optical system (20) in such a manner that purging air can be fed via the hole (1) along a channel (32, 34) positioned between the optical system (20) and the enclosing structure (22, 40) thereof in the combustion chamber.
摘要:
An assembly for a combustion chamber monitoring camera comprises an image-forming optical system (20) whose object space (26) is a combustion chamber and whose image plane (5) is coincident with the photosensitive element of the camera, and whose focal point (24) on the object space side is situated outside the optical system (20), and a structure (22) enclosing the optical system (20). On the object space side of the optical system (20), a solid baffle plate (38) is placed having a hole (1) made cocentrical with the center axis of the optical system (20) and situated at the focal point (24) of the entire optical system on the object space side, or in the vicinity thereof. A structure (22,40) encloses the optical system (20) in such a manner that purging air can be fed via the hole (1) along a channel (32,34) positioned between the optical system (20) and the enclosing structure (22,40) thereof in the combustion chamber.
摘要:
An image processing method for flame monitoring is based on the formation of a video signal characteristic to the combustion process. In accordance with the method, the flame is monitored by each fire-box camera essentially from its side, whereby the video signal is adapted to cover at least an entire ignition area of a single burner, the video signal is continually processed to define the average intensity level corresponding to the steepest intensity gradients, and for each averaged level, the corresponding spatial or time coordinates of the continuous video signal, which define the location of the ignition area, are determined. The method extracts from the ignition and combustion process abundant information helpful in the control of combustion.
摘要:
A method for generating real-time control parameters by a video camera for smoke-generating combustion reactions is disclosed. In accordance with the method, a video camera is used for obtaining a video signal, which is digitized and filtered temporally and spatially. The digitized video signal is divided on the basis of its signal level distribution into signal subareas to reduce the quantity of processed information. The picture elements belonging to the same subarea are combined into contiguous image areas representing a certain signal level, the subareas are combined into an integrated image, subsequent images are averaged to eliminate random disturbance, and the averaged image is displayed on a display device. This method facilitates the real-time monitoring of a combustion process.