PWM flux-gate circuit for measuring magnitude and direction of a

Details PWM flux-gate circuit for measuring magnitude and direction of a PWM flux-gate circuit for measuring magnitude and direction of a

1998-02-24

2000-01-11

Snow, Walter E.

Electricity: measuring and testing

Magnetic

Magnetometers

33361, G01R 3302, G01R 3304

Patent

active

060140259

ABSTRACT:
A Micro-Powered Flux-Gate Magnetometer is provided for measuring the strength and direction of external magnetic fields. The magnetometer includes a saturable core inductor, or flux-gate positioned in an area where the magnetic flux due to external magnetic fields will enter the inductor core and alter the inductance of the coil. The flux-gate inductor is driven by an alternating input signal sufficient to magnetically saturate the inductor core during each cycle. A saturation detecting circuit determines when the flux-gate core reaches saturation, and provides an saturation output signal indicating when, relative to the input signal, the core reaches saturation on each cycle of the input waveform. A comparison circuit compares the saturation signal and the alternating input signal and measures a propagation delay through the flux-gate inductor. Finally, an output circuit provides an analog output voltage signal proportional to the propagation delay through the flux-gate inductor.

REFERENCES:
patent: 3605011 (1971-09-01), Hart et al.

Affiliated with

Also associated with

Rating

PWM flux-gate circuit for measuring magnitude and direction of a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with PWM flux-gate circuit for measuring magnitude and direction of a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and PWM flux-gate circuit for measuring magnitude and direction of a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1464936