Abstract: A sensor arrangement suitable for determining a condition. A first RFID-unit and a second RFID-unit are subjected to the condition. The second RFID-unit is at least partly provided with a degradation unit having such properties that, when subjected to the condition, the second RFID-unit is functionally degraded to a greater extent than the first RFID-unit. A sensor arrangement product includes at least one sensor arrangement.

Abstract: A method for determining a particle impact on a sensor device comprising M sensing areas, each impact causing a variation of at least one physical magnitude of several sensing portions, said method comprising the steps of: determining an impact center sensing area, where the variation of the at least one physical magnitude is substantially maximal, allocating a result of a sum of the physical magnitude variations of a first set of N sensing areas, said set including the impact center area and other sensing areas neighboring said impact center sensing area, where N is at least 2 and is strict less than M.

Abstract: A method for determining a particle impact on a sensor device comprising M sensing areas, each impact causing a variation of at least one physical magnitude of several sensing portions, said method comprising the steps of: determining an impact center sensing area, where the variation of the at least one physical magnitude is substantially maximal, allocating a result of a sum of the physical magnitude variations of a first set of N sensing areas, said set including the impact center area and other sensing areas neighboring said impact center sensing area, where N is at least 2 and is strictly less than M.