公开(公告)号：US20180113161A1

公开(公告)日：2018-04-26

申请号：US15298725

申请日：2016-10-20

申请人： SENSANNA INCORPORATED

发明人： Jacqueline H. HINES ,  Andrew T. HINES ,  David S. YANEY ,  Doug KIRKPATRICK

IPC分类号： G01R29/08

CPC分类号： G01R15/144 ,  G01R15/148 ,  G01R29/0878

摘要： Improved devices, apparatuses, systems, and methods involving the use of field probes with voltage-controlled variable impedance elements and surface-launched acoustic wave devices, including surface acoustic wave (SAW) devices and SAW sensor-tag wireless interface devices to measure voltage and current in current carrying conductors (CCCs) via measurement of the electric fields and magnetic fields around said CCCs are disclosed. The devices, apparatuses, systems, and methods taught in the present invention include a remotely powered line-mounted measurement unit that requires no connection to electrical ground for operation, and that has no internal energy source, no energy harvesting or power conditioning circuitry, no discrete energy storage components, and no radio. The devices, apparatuses, systems, and methods taught in the present invention also provide for determining the phase (leading or lagging) of the current relative to the voltage in AC power systems, and also provide for measurement of temperature of the conductor.