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41. 发明授权

US4372693A Temperature excursion sensing and locating apparatus 失效
标题翻译：温度偏移传感定位装置
公开(公告)号：US4372693A
公开(公告)日：1983-02-08
申请号：US229913
申请日：1981-01-30
申请人： Michael A. Lutz
发明人： Michael A. Lutz
IPC分类号： G01B7/02 , G08B17/06 , G01K7/00 , G08B17/00
CPC分类号： G01B7/02 , G08B17/06
摘要： A temperature excursion sensor and locator consisting of a temperature sensitive cable which includes two electrical conductors separated by a dielectric member to form a linear strip capacitor wherein at least one of the conductors is comprised of a number of thermostatic devices connected serially. An over or under temperature excursion is sensed and located by the cable when it is connected from either end to control electronics by measuring the capacitance of the cable. Under normal conditions, all of the thermostatic devices are electrically conducting and the control electronics measures the full capacitance. Upon occurrence of a temperature excursion, one or more thermostatic devices become non-conductive and the resulting measured capacitance is proportionately reduced. Presence of the temperature excursion is sensed and its location indicated by the control electronics which compares the full cable capacitance to the reduced capacitance, the ratio of said capacitances determining the location of the temperature excursion.
摘要翻译：温度偏移传感器和定位器，其由温度敏感的电缆组成，温度敏感电缆包括由电介质部件隔开以形成线性带状电容器的两个电导体，其中至少一个导体由串联连接的多个恒温器件组成。当电缆通过测量电缆的电容从两端连接到控制电子装置时，通过电缆检测和定位过度或过低温度偏移。在正常条件下，所有的恒温器件都是导电的，控制电子元件测量全电容。在发生温度偏移时，一个或多个恒温器件变得不导电，并且所得到的测量电容成比例地减小。感测温度偏移的存在，并且由控制电子装置指示其位置，其将全部电缆电容与减小的电容（所述电容的比率确定温度偏移的位置）进行比较。

42. 发明授权

US4361799A Over-temperature sense and locate device 失效
标题翻译：过温感和定位装置
公开(公告)号：US4361799A
公开(公告)日：1982-11-30
申请号：US338409
申请日：1982-01-08
申请人： Michael A. Lutz
发明人： Michael A. Lutz
IPC分类号： G01K3/00 , G01M3/00 , G01M3/04 , G01M3/16 , G01R31/08 , G01R27/26
CPC分类号： G01R31/088 , G01K3/00 , G01M3/002 , G01M3/045 , G01M3/165
摘要： The invention is an over-temperature sensor and locator utilizing a temperature sensitive cable comprising (1) an electrical conductor, (2) a dielectric, and (3) a solid, conductive polymeric, positive temperature coefficient of resistance composition. An over-temperature condition at any point along the cable is detected by a drop in the capacitance of the cable, as measured from one end of the cable. The location of the over-temperature point on the cable is determined by comparing the reduced capacitance from the control end to the over-temperature point with the capacitance of the full cable length.
摘要翻译：本发明是一种使用温度敏感电缆的过温度传感器和定位器，包括（1）电导体，（2）电介质，和（3）固体，导电聚合物，正温度系数的电阻组成。从电缆的一端测量，通过电缆的电容的下降来检测沿着电缆的任何点的过温状态。电缆上的温度过高点的位置是通过将整个电缆长度的电容与从控制端到过温度点的降低电容进行比较来确定的。

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