結合鎳鐵C字型夾鉗且應用於監控家用電器雙線軟性非侵入式之功率檢測器

Abstract

本論文中包含二個主要的部分。其中一個是軟性非侵入式的電力感測器，可以精確的量測電流與電壓在電源線型號為SPT-2 16AWG的家用電器上。此功率傳感器是同時把電流感測器和電壓感測器製作在厚度為100μm的PET軟性基板上。這個構思是把線寬30μm間距30μm的30匝線圈和兩片電極板製作在面積為1.3x1cm2的軟性基板上。這個電力感測器在60Hz分別有23.92μV/A和72.62mV/115V的靈敏度。另一部分是製作鎳鐵C字夾在PET軟性基板上的C字型夾鉗用來提高電流感測器的感應電壓和防止外界電磁波的干擾。此C字型夾鉗可以引導和集中磁通量在感應線圈的中心區域。這個厚2μm長14.5mm中心區域高度為25μm的C字型夾鉗，對於30匝的感度線圈在1A60Hz時提高了37.2%的感應電壓並且有明顯抗干擾的效果。

This thesis presents two major parts. One is a flexible non-intrusive power sensor tag with good proximity for accurate electric current and voltage sensing on a typical SPT-2 16AWG power cord of household appliances. The current and voltage sensors are simultaneously fabricated on a 100μm-thick flexible PET substrate. For the design of a 30-turns coil with 30μm in width and 30μm in spacing combing with two electrodes in the area of 1.3x1cm2. The sensor tag exhibits a sensitivity of 23.92μV/A and 72.62mV/115V for 60Hz electric current and voltage, respectively. Another is the NiFe C-clamp stripes fabricated on a 100μm-thick flexible PET substrate for providing sensitivity enhancement and reducing EM (Electromagnetic) interference for the inductive current sensor. The NiFe C-clamp stripes can guide and concentrate the magnetic flux in the central area of the inductive coil. For the 30-turn inductive coil, the 2μm thick NiFe C-clamp stripes with 14.5 mm in length and 25μm in height can provide 37.2% sensitivity enhancement for detecting 1A, 60Hz electric current in the SPT2-18AWG power cord to be detected. Meanwhile, the stripes can also effectively reduce the EM interference coming from an adjacent power cord.