Method and apparatus for displaying signal information from a me

Details Method and apparatus for displaying signal information from a me Method and apparatus for displaying signal information from a me

1995-06-07

1997-01-21

Snow, Walter E.

Electricity: measuring and testing

Of geophysical surface or subsurface in situ

For small object detection or location

324262, G01N 2772, G01V 311, G01V 3165, G01R 2726

Patent

active

055962777

ABSTRACT:
A metal detector having a receive signal responsive to detected metal objects and having a display panel that can simultaneously display a plurality of phase angles associated with the receive signal. Additionally, the display panel can simultaneously display a second variable associated with the receive signal at each particular phase angle. The second variable is user selectable and can be either (1) a count of the number of times the signal amplitude exceeds a predetermined threshold level at a particular phase angle or (2) the signal amplitude when the signal is at a particular phase angle.

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patent: 4631533 (1986-12-01), Mark, Jr.
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patent: 4853617 (1989-08-01), Douglas et al.
patent: 4868910 (1989-09-01), Maulding
patent: 5148151 (1992-09-01), Podhrasky

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