MAGNETIC IMAGE SEEKER UTILIZING NEW MAGNETIC MATERIALS

IT IS PROPOSED THAT A NEW TYPE OF SOFT MAGNETIC MATERIAL CAN BE USED FOR A VERY SENSITIVE AND LOW MAGNETIC FIELD DETECTION DEVICE. TO DETECT THE MILITARY TARGETS, ONE NEEDS A HIGHLY SENSITIVE DEVICE BUT THE EXISTING FLUX-GATE MAGNETOMETERS ARE LIMITED BY THEIR SIGNAL-TONOISE RATIO. WITH THE DEVELOPMENT OF SUPERIOR MAGNETIC MATERIALS AND IMPROVED ELECTRONICS, SOME OF THE NOISE PROBLEMS IN FLUX-GATE MAGNETO-METERS HAS BEEN REDUCED. BUT THE PROBLEM OF LINEARITY AND SENSITIVITYSTILL REMAINS TO BE SOLVED. A HIGHLY SENSITIVE, LOW NOISE MAGNETIC SENSOR IS, THEREFORE, NEEDED. THE SECURITY TAG SYSTEMS, (STS) CONCEPT OF THE MAGNETIC SENSOR IS BASED ON THE UNIQUE "PARAMETRIC AMPLIFICATION" PRINCIPLE. THE SENSITIVITY AND PERFORMANCE OF THIS DEVICE IS MUCH HIGHER COMPARED TO THE STANDARD EXISTING FLUX-GATE TYPE. THE HIGHER SIGNAL-TO-NOISE RATIO OF THE STS MAGNETIC DETECTION DEVICE IS THE RESULT OF A UNIQUE CHOICE OF MAGNETIC MATERIAL AND THE PHYSICAL PRINCIPLE BEHIND IT.