发明名称 Digital linear heat detector with thermocouple heat confirmation
摘要 The present invention provides a digital linear heat detector with thermocouple heat confirmation. A digital linear heat detector with thermocouple heat confirmation comprises a first conductor and a second conductor, the first conductor composed of a different conductive material than the second conductor. The first and second conductors are then are twisted together to form substantially continuous spring pressure between the first conductor and the second conductor, thereby causing the layers of the non-conductive heat sensitive thermoplastic material to be in contact. The present invention also includes a monitoring circuit that is configured to monitor resistance along the first and second conductors. When the resistance changes along the first and second conductors, the monitor is configured to detect a short and enter a thermocouple mode. By entering the thermocouple mode, the monitoring circuit is able to identify the temperature at the short and determine the type of alarm condition being created by the short based on a predetermined temperature threshold.
申请公布号 US8096708(B2) 申请公布日期 2012.01.17
申请号 US20090370093 申请日期 2009.02.12
申请人 HARRINGTON BRIAN P.;THE PROTECTOWIRE COMPANY, INC. 发明人 HARRINGTON BRIAN P.
分类号 G08B17/06;G01K7/00;G08B25/04 主分类号 G08B17/06
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