SENSOR AND SENSOR ASSEMBLY FOR CAPACITIVE DETERMINATION OF A FILLING LEVEL

摘要

The present invention relates to a sensor for a capacitive determination of a filling level of a cartridge (30) filled with a liquid substance (34), the sensor comprising: - a planar flexible foil (11) arrangeable to an outer circumference of a tubular shaped barrel (32) of the cartridge (30), the foil (11) having at least a sensing zone (12) and a communication zone (14), - at least a first electrode (61; 161; 161; 361) and at least a second electrode (62; 162; 262; 362) located in the sensing zone (12), - a processor (50; 350) electrically connected with the at least first and second electrodes (61, 62; 161, 162; 261, 262; 361, 362), and - an antenna (51; 351) located in the communication zone (14) and electrically connected with the processor (50; 350).