A detection system for detecting articles partly formed from a sheet or stacks of sheets and a method for detecting such articles.

摘要

The invention relates to a detection system for detecting the presence of an article partly formed from a sheet or stacks of sheets in a detection area. Such known detection systems are oftentimes used in mail handling and processing machines and to that end comprise a transmitter unit for emitting electromagnetic waves into the detection area and a receiver unit for receiving electromagnetic waves emitted by the transmitter unit and for detecting a disturbance of these electromagnetic waves, caused by the article when the article is located in the detection area. In accordance with the invention, the system further comprises a control unit which controls the transmitter unit in such a manner that a received signal, which represents the received electromagnetic waves, generated by the receiver unit lies within specified limits.