Current sensor in PCB technology
SENSORS, 2002 IEEE - Tập 2 - Trang 779-784 vol.2
Tóm tắt
A novel DC/AC current sensor works on the fluxgate principle. The core in the form of a 7/10 mm ring made of electrodeposited Permalloy is sandwiched into the middle of the printed circuit board (PCB), while the sensor excitation winding is also integrated in the copper layers of the PCB. In order to lower the sensor power consumption, the excitation winding was tuned by a parallel capacitor. The peak-peak/rms ratio of 5.2 was achieved for the excitation frequency of 25 kHz. The open-loop sensor has 100 mA/A sensitivity characteristics with linearity error of 10% and hysteresis below 0.1% in the 1A range.
Từ khóa
#Sensor phenomena and characterization #Integrated circuit technology #Printed circuits #Copper #Capacitive sensors #Energy consumption #Capacitors #Frequency #Linearity #HysteresisTài liệu tham khảo
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