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
Binder for secondary battery providing excellent adhesion strength and cycle property
Electronic component
Estrogen receptor ligands
Preventative traffic congestion social networking improvement system within a community
Round carrying case
System and method for removing oxide from a sensor clip assembly
Hybrid interconnect scheme including aluminum metal line in low-k dielectric
  Randomly Featured Patents
Method of differentiating beer yeast
Football yard helmut
Developing device, image forming apparatus, image forming system, cartridge, developing unit and photoconductor unit
System and method for blocking harmful information online, and computer readable medium therefor
Method for determining calciotropic activity of a preparation of Padina pavonica algae
Inductor for heating inner-circumference of hole
Circuit breaker having serial data communications
Method of repairing a vinyl window frame
Bracket supported side view mirror system
Tennis glove