| 摘要 |
In a measuring station (1) at least one physical magnitude of each object to be tested is measured. A decision logic (2) juges each value measured relatively to limit values contained in a memory (3) and decides whether the object must be accepted or not. The measured values of the accepted objects are statistically processed in a computer (6). The unaccepted objects come to a return station (4). Each measure value provided to the computer (6) is combined, with a selected weighing index (//c) present on an input (7), with the previously stored measured values so as to obtain a new mean value (//c) and a new quadratic means (//c<s2>s). A tolerance factor (p) of the dispersion, present on an input (8) determines the limit values appropriate for the following object. The device is appropriate for the bank notes testing, and for processing measured values, a micro-computer may be used. An input (11) is used for inputting empiric values for the mean value (//c) and the quadratic mean (//c<s2>s) before operating the device. For setting the limit values, the measured values of the first bank notes are used with a waiting index (//c) of high weight, and then the weight may be reduced. |
