| 摘要 |
The present invention relates to a system for control of a flow of a media in a duct. It is the object of the pending patent application to achieve an effective control of inlet air in a heating or air condition systems in buildings. The object can be achieved by the system where the flow measurement and the damper control is performed by a common control system, which control system comprises at least one common printed board, which printed board comprises at least one processor, which printed board further comprises position detection means for detecting the actual position of the damper. Hereby can be achieved that all electronic functions necessary for control the inlet flow of air can be achieved at one common electronic circuit placed on one single printed board. It is further possible that a common processor takes care of flow calculation and also takes care of damper regulation. In that way highly effective control of the inlet air can be achieved. Actual flow is measured and if a difference to a fixed value exists then a damper can be adjusted so that the correct air flow is achieved. By continuously measuring air flow it is possible even to adjust a flow level into what is necessary in an office or a room. |
