Electricity: measuring and testing – Of geophysical surface or subsurface in situ – For small object detection or location
Patent
1988-04-25
1990-01-16
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
For small object detection or location
324239, 324243, G01V 308, G01V 310, G01N 2772, G01R 3312
Patent
active
048946176
ABSTRACT:
The subject-matter of this invention is a device for locating rods buried in high-density reinforced concrete. The device envisages an inductor coil (10) which generates a magnetic field, and at least one detector coil (1) able to detect the variations in the magnetic field induced by the presence of steel rods. The device is associated with marking equipment (4), which may be controlled either manually or automatically, depending on the strength of the signal emitted by the detector coil(s).
REFERENCES:
patent: 2680226 (1954-06-01), Whitehead et al.
patent: 3675502 (1975-04-01), Neumaier
Ansaldo S.p.A.
Burns Robert E.
Eisenzopf Reinhard J.
Lobato Emmanuel J.
Snow Walter E.
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