公开(公告)号：EP1695312A1

公开(公告)日：2006-08-30

申请号：EP04805219.5

申请日：2004-12-16

申请人： UPM-Kymmene Corporation

发明人： VARPULA, Timo ,  SEPPÄ, Heikki ,  SAARI, Juha-Matti

IPC分类号： G08C17/00 ,  G01N27/26 ,  G01N33/02

CPC分类号： G06K19/0717 ,  G08C17/04 ,  G08C17/06 ,  Y10T436/184

摘要： The invention relates to a sensor arrangement and a method for a sensor arrangement (1, 3, 5) remotely readable by radio frequencies. The sensor arrangement comprises an LC resonator (3, 5) which comprises a capacitor (3) and a coil (5), and a sensor element (1) coupled to the LC resonator (3, 5) whose properties change as a function of a measurable quantity. A sensor element (1) according to the invention does not form a direct galvanic contact with the LC resonator (3, 5), rather the coupling is implemented capacitively or inductively.

公开(公告)号：EP1695312B1

公开(公告)日：2008-04-02

申请号：EP04805219.5

申请日：2004-12-16

申请人： UPM-Kymmene Corporation

发明人： VARPULA, Timo ,  SEPPÄ, Heikki ,  SAARI, Juha-Matti

IPC分类号： G08C17/00 ,  G01N27/26 ,  G01N33/02

CPC分类号： G06K19/0717 ,  G08C17/04 ,  G08C17/06 ,  Y10T436/184

摘要： The invention relates to a sensor arrangement and a method for a sensor arrangement (1, 3, 5) remotely readable by radio frequencies. The sensor arrangement comprises an LC resonator (3, 5) which comprises a capacitor (3) and a coil (5), and a sensor element (1) coupled to the LC resonator (3, 5) whose properties change as a function of a measurable quantity. A sensor element (1) according to the invention does not form a direct galvanic contact with the LC resonator (3, 5), rather the coupling is implemented capacitively or inductively.