Electricity: measuring and testing – Of geophysical surface or subsurface in situ – By magnetic means
Reexamination Certificate
2006-05-30
2006-05-30
LeDynh, Bot (Department: 2862)
Electricity: measuring and testing
Of geophysical surface or subsurface in situ
By magnetic means
C324S338000
Reexamination Certificate
active
07053622
ABSTRACT:
The invention relates to measuring equipment and method for mapping the geology including a transmitter circuit with a current source for generating an electric current and a transmitter coil; a switch for connecting the current source to the transmitter coil during operation so that an electric current is generated in it, with the current building up a magnetic field in the formation, and for cutting off this current again so that the built-up magnetic field in the formation decays; and a receiving circuit with a receiving coil for registering the voltage induced over the receiving coil. There is a preamplifier for amplifying the registered voltage (VRcoil) from the receiving coil and the second electrical switch for disconnecting the connection between the receiving coil and the preamplifier, a measuring equipment can be provided that is so compact that it can be used for airborne transient sounding.
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LeDynh Bot
Winston & Strawn LLP
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