Current sensor and measurement device

The invention relates to a current sensor and a measurement device. The current sensor (110) adapted to detect electric current flowing through an object to be measured includes a magnetic core (2) through which the object to be measured is inserted, a coil (3) wound around the magnetic core (2), a...

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Bibliographic Details
Main Authors TOYA SHOGO, MASUDA HIDEKAZU, YOKOTA OSAMU
Format Patent
LanguageChinese
English
Published 22.09.2020
Subjects
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The invention relates to a current sensor and a measurement device. The current sensor (110) adapted to detect electric current flowing through an object to be measured includes a magnetic core (2) through which the object to be measured is inserted, a coil (3) wound around the magnetic core (2), a transmission line (8) adapted to transmit electric current supplied from the coil, a terminating resistor (9) adapted to convert electric current from a terminating end (8b) of the transmission line (8) into voltage and outputs the voltage, and an impedance matching unit (10) adapted to implement impedance matching between the coil (3) and the terminating resistor (9). The impedance matching unit (10) is adapted to raise, to a characteristic impedance of the transmission line, at least one of animpedance viewed from the terminating end of the transmission line toward the terminating resistor and an impedance viewed from a starting end (8a) of the transmission line (8) toward the coil (3), in a band of frequency com
Bibliography:Application Number: CN202010166764