| 摘要 |
<p>A temperature-sensitive label includes a temperature-sensitive system (10) comprising a filiform shape memory member (1) that has a first end portion (f1) having a terminal part fixedly secured to a first contact member (2),a second end portion (f2) having a terminal part restrained by a second contact member (3) in a non-permanent way, and a central curved portion (f3) that is in the martensitic phase while the first and second portions (f1, f2) are in the austenitic phase at a same environmental temperature above a critical threshold temperature (Tc) to be monitored by the label such that in case of exposure to a temperature lower than the preset critical threshold temperature (Tc) the end portions (f1, f2) of the filiform shape memory member (1) perform a phase transition, from austenitic phase to martensitic phase, which causes its irreversible disengagement from the restraint formed by the secondcontact member(3) and said disengagement condition is optionally visible, for example, through a transparent window and/or monitored by an RFID system.</p> |
