G - Physics – 01 – V
Patent
G - Physics
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G01V 3/11 (2006.01) G01V 3/10 (2006.01) G01V 3/15 (2006.01)
Patent
CA 1171908
ABSTRACT OF THE DISCLOSURE: The invention is concerned with a method for detecting a conductive mineral or metal in a soil and for discriminating the magnetized minerals from the so detected conductive mineral. According to this method, a high-frequency signal is continuously transmitted with an oscillator comprising a loop whose inductance varies in the presence of a conductive mineral at the vicinity thereof while the high-frequency signal is continuously received, the loop is moved away from the soil and the frequency of the received signal is counted to give a reference value. Then, the frequency of the received signal is counted again while moving the loop over the soil to obtain an updated value. This updated value is continuously compared with the reference value; and an output signal is gi- ven whenever the updated value is higher than the reference value. The invention is also concerned with an apparatus for carrying out the above method.
401747
Desbiens Regis
Desbiens Rejean
Gaucher Edwin
Desbiens Regis
Desbiens Rejean
Gaucher Edwin
Robic Robic & Associes/associates
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