Monitored security switch assembly

作者: Jr. John T. Jackson

DOI:

关键词:

摘要: A monitored security switch assembly includes a switching system, transmission line, and monitoring system. The system has load element. uses an oscillatory voltage to determine if the line are impedance matched. can function in mode or reflection mode.

参考文章(15)
Algie Lee Lance, Introduction to microwave theory and measurements McGraw-Hill. ,(1964)
D Lamensdorf, G Ross, Lorenzo J De, Transmission line presence sensor ,(1971)
Lowell A. Rathbun, Christopher J. McMurtry, John W. Poss, Method and apparatus for warning of disconnection of an appliance from a power source ,(1987)
Dieter Wuerth, Walter S. Schopfer, Appliance removal alarm system for motels ,(1971)
E. Fuss, Modern Alarm Line Supervisory Techniques IEEE Power & Energy Magazine. pp. 3222- 3225 ,(1982) , 10.1109/TPAS.1982.317504
John W. Patchell, R. Keith Harman, Perimeter surveillance system ,(1979)