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
Methods for integrating the production of cellulose nanofibrils with the production of cellulose nanocrystals
Satellite fleet deployment
Steplessly adjustable cymbal locating device
Retransmission and retransmission request in data communication systems
System and method for a TCP mapper
Regulating a supply voltage provided to a load circuit
Cucumber plants with a compact growing habit
  Randomly Featured Patents
Tire for vehicle
Digital signal processing apparatus for a blood flowmeter using ultrasound Doppler effect
Information processing apparatus, imaging apparatus, and method for correcting images
Stable salts of S-adenosylmethionine and process for the preparation thereof
CMP pad dresser with oriented particles and associated methods
Systems, devices, methods and computer program products for downloading content to mobile devices in a roaming environment
Resin composites and method for producing the same
Ink set and image forming method using the same
Encryption to BCC recipients with S/MIME
Feed intake limiting composition for ruminants