Methods and apparatus for the location of objects by means of short wave radio energy
Abstract
Abstract 455,765. Locating conductors. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL, 79, Boulevard Haussmann, Paris. April 15, 1936, No. 10891. Convention date, April 20, 1935. [Class 37] Relates to a known method of locating a hidden or buried conductor by mounting a short-wave radio transmitter E, Fig. 3, on the same axis V as a receiver R, and rotating the arrangement so that the exploring beam sweeps out a plane in the area containing the conductor. A similar combination may be mounted at the other end of the base-line. According to the invention the axis V is slowly rotated until a reflected signal is received by R, whereupon a relay H, Fig. 4, is automatically operated to stop the drive. By opening a switch I, the drive is restored.
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