Title :
Characteristics of low-frequency parametric magnetic sensor
Author :
Karasawa, Koichi ; Yonekura, Ken-ichi ; Tanno, Yorimoto ; Matsuki, Hidetoshi
Author_Institution :
Dept. of Electr. Eng., Nagano Nat. Coll. of Technol., Japan
fDate :
9/1/2002 12:00:00 AM
Abstract :
In this paper, a low-frequency parametric magnetic sensor with a magnetic ribbon and an Antoniou general impedance converter is described. A low-frequency parametric magnetic sensor with a parametric oscillation frequency of about 20 kHz is examined. We show that the sensor has a sensitivity of 1.04 mVp-p/(A/m) without any amplifier and detects a constant output voltage independent of frequency in the band from 1 Hz to 1 kHz.
Keywords :
capacitors; impedance convertors; magnetic heads; magnetic sensors; parametric oscillators; 1 Hz to 1 kHz; 22.7 kHz; Antoniou general impedance converter; constant output voltage detection; flux-response type sensor; low-frequency parametric magnetic sensor; magnetic ribbon; parametric oscillation frequency; sensitivity; time-variable capacitor; Capacitance; Capacitors; Circuits; Frequency; Impedance; Magnetic flux; Magnetic heads; Magnetic sensors; Sensor phenomena and characterization; Voltage;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.802284
