초록 ▼

A sensor has a substrate with a first surface having a substantial area, a conductive trace defining a conductive path on the substrate between first and second locations, and an adhesive on the first surface for adhering the sensor to an object to be monitored in an operative state. A weakening is

A sensor has a substrate with a first surface having a substantial area, a conductive trace defining a conductive path on the substrate between first and second locations, and an adhesive on the first surface for adhering the sensor to an object to be monitored in an operative state. A weakening is provided in the substrate to cause separation/tearing of the substrate in a predetermined fashion as an incident of a force being applied to the substrate with the sensor in the operative state tending to peel the sensor off of the object to be monitored. The conductive trace is arranged on the substrate so that as the substrate separates/tears in the predetermined fashion, the conductive path defined by the conductor trace is interrupted.

대표청구항 ▼

[ We claim:] [17.] A sensor for attachment to an article to be monitored, said sensor comprising:a substrate having a first surface;a conductive element on the first surface; andan adhesive on the first surface for adhering the sensor to an object to be monitored in an operative state;there being a

[ We claim:] [17.] A sensor for attachment to an article to be monitored, said sensor comprising:a substrate having a first surface;a conductive element on the first surface; andan adhesive on the first surface for adhering the sensor to an object to be monitored in an operative state;there being a weakening in the substrate to cause separation/tearing of the substrate in a predetermined fashion such that a discrete portion of the substrate separates from the remainder of the substrate as an incident of a force being applied to the substrate with the sensor in the operative state tending to peel the sensor off an object to monitored,the conductive element having a first state with the sensor in the operative state and a second state with the discrete portion of the substrate separated from the remainder of the substrate,whereby a monitoring system can be used to detect the first and second states of the conductive element and produce a signal indicative of the fact that the conductive element has changed from the first state into the second state.