Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1977-05-09
1978-09-05
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 7, 324 67, G01V 310
Patent
active
041123492
ABSTRACT:
My new invention describes a method and means for a receptor or translator apparatus suited for positionally spotting and tracing subjacently concealed conductive structures through the detection of a cooperative separately induced pair of radio frequency signals modulated by a constant amplitude radio frequency tone. The pair of radio frequency signals are predeterminately caused to occur either simultaneously or in a sequentially ordered alternative form. The receptor further includes a pair of inducer means in different spatial displacements with each inducer means being operative to be singularly responsive to but one of the pair of radio frequencies emanating from the concealed structure. The independent inducer signals are subsequently amplified and independently demodulated so as to result in two separate audio frequency tones the volume of which are individually proportional to the radio frequency signal level picked up by either of the pair of inducers. The audio tones are then employed to drive independent audio transducers, as for example the individual earphones comprising a binaural headset, for the purpose of conveying to the operator a bivolumetric tone the level inequalities of which are relatively proportional to the displacement error of the pair of inducers in respect to the concealed structure. The result is to provide through means of subaudition an apparent steady or uniform tone volume or loudness when the translator is optimaly aligned about the concealed structure so as to be effectively tracing the lay of the structure.
REFERENCES:
patent: 2731598 (1956-01-01), Herbert
patent: 3299351 (1967-01-01), Williams
LandOfFree
Apparatus including bivolumetric tone subaudition means for posi does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus including bivolumetric tone subaudition means for posi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus including bivolumetric tone subaudition means for posi will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2098799