Resources Contact Us Home
Method and apparatus for broadband measurement of dielectric properties

Image Number 5 for United States Patent #5132623.

A method and apparatus measures dielectric properties over a broad range of frequencies. The functions of various resistivity and dielectric constant measuring devices such as logging tools are combined in a single tool. A measuring tool includes novel transmitting and receiving antennas. Electromagnetic energy flows to a transmitting antenna. A stripline adapter permits transmission to a stripline having a metallic central strip. A strip face is bent at approximately right angles, and has a length that is compatible with the desired frequency coverage. A ground plane extends from the stripline adapter to the right angle bend, and a void exists between the center strip and the ground plane. A dielectric is positioned to nearly fill the void. The antennas are positioned so that the strip face lies flush with the tool face, to permit electromagnetic energy to be transmitted into and out of the material to be analyzed. An enclosure comprised of four metallic walls surrounds the stipline, and is in electrical contact with the ground plane and the stripline adapter. The invention permits an analysis of the fluids in the material as well.

  Recently Added Patents
Damage resistant antenna
System, method and apparatus for pausing multi-channel broadcasts
Optimized delivery of web application code
Solid-state image pickup element, method of manufacturing the same, and image pickup apparatus including the same
Vehicle and communication monitoring
Cell reselection and handover with multimedia broadcast/multicast service
Image forming apparatus having exhaust fan
  Randomly Featured Patents
Methods, systems, and computer program products for implementing compact manufacturing models in electronic design automation
Copper-containing organometallic complexes and concentrates and diesel fuels containing same
Soap stand
Hyperbaric chamber apparatus
Cushion structure of side airbag
Torque distribution control system in vehicle
Pump-out plug catcher
Air intake device for a V-type engine
Access point profile for a mesh access point in a wireless mesh network
Chip-base plastic currency with cash amount loading function