| 摘要 |
My invention relates to improved means for a concealed structure detector apparatus, and more particularly, to a portable device producing a polyindicative, usually biphonic, sensory response capable of providing the operator with an indication of the relative direction of lay for a covert structurement. The detector responds to pulse pattern modulated electromagnetic field signals established in the concealment object by a separate acting efficacious exciter means. The detector includes at least two inducers which are axilly offset and thereby effective to independently respond to variation in the electromagnetic field lines emanating from the structure in proportionate accordance to the relative positions of the individual inducers with respect to the structure. The demodulated pulse pattern signals effectively produced by each inducer response are each conditioned in a substantially independent manner, therefrom resulting in an indicative form capable of providing an intelligent being with a sense of directionality, exampledly "right" or "left" orientation relative to a concealed structure.
|
