| 摘要 |
Measurement signals generated by detectors arranged in the transverse direction of a revolving paper machine roll are passed to a measurement sign al reading unit installed preferably at the end of the roll. From the measureme nt signal reading unit, the signals are transmitted wirelessly further as telemeter signals to a reading unit placed outside the roll and connected to a PC or equivalent computer. In the measurement signal reading unit, a transponder is arranged into which an unique code is coded for each detector. The signals are processed in the entire measurement process as analog signals. In the transfer of the telemeter signals between the unit for reading and measurement of the detectors and the reading unit placed outside the roll, a substantially low transfer frequency of an order of from about 100 kHz to about 150 kHz is employed.
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