Title :
Parametric magnetic sensor with pulse oscillator
Author :
Karasawa, Koichi ; Kurumisawa, Masaki
Author_Institution :
Dept. of Electr. Eng., Nagano Nat. Coll. of Technol., Japan
Abstract :
A pulse excitation type parametric magnetic sensor with the repetition parametric oscillation frequency of 5 kHz is examined. In this paper, we show that the parametric oscillation voltage is obtained with a pulse oscillator, and that the sensor has the sensitivity of 52.3 mV/(A/m) in the magnetic field from 4 to 30 A/m without any amplifier and detects the constant envelope voltage independent of the signal frequency band from 10 Hz to 1 kHz.
Keywords :
magnetic sensors; parametric oscillators; 10 to 1000 Hz; 5 kHz; parametric magnetic sensors; parametric oscillation; pulse excitation; pulse oscillators; Amorphous magnetic materials; Frequency; Impedance; Magnetic flux; Magnetic heads; Magnetic sensors; Pulse amplifiers; Saturation magnetization; Voltage; Voltage-controlled oscillators; Amplitude-modulated type; high sensitivity; parametric magnetic sensor; pulse excitation;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2005.855177
