309 results about "Induced polarization" patented technology

Due to an ever growing shortage of conventional energy sources, there is an increasingly intense interest in harnessing solar energy. The instant invention can contribute to the goal of achieving environmentally clean solar energy to be competitive with conventional energy sources. Method and apparatus are presented for coupling to a transparent sheet with an embedded array of preformed or formable mirrored micro-balls for use in a solar energy concentrator, and functionally similar applications such as optical switches and solar rocket assist. Mirrored micro-balls and particulate formable mirrors in cells are covered with a thin spherical shell of lubricating liquid so that they are free to rotate in an almost frictionless encapsulation in the sheet. Induced polarization electric or magnetic dipoles in the mirrors provide a method of controlling the alignment of the mirrored balls. Electrophoretically and magnetophoretically forming mirrors in situ on a rigid surface in a rotatable cell are also disclosed. Confining the balls and cells in cavities within a single sheet, rather than loosely between two sheets, allows for greater alignment accuracy which is needed for higher concentrations with gains greater than 10×. Immersing balls and cells in a lubricating fluid permits nearly frictionless rotation which reduces the power requirement for rotation, and further enables greater alignment accuracy as the impediment of unnecessary friction need not be overcome.

The invention discloses a segmented-centralized-type high-density electrical method measurement system and application thereof, and relates to the field of high-density electrical method measurement systems. The system comprises a testing master, a plurality of electrode exchanging devices, cables with taps and electrodes connected with the taps. The testing master and the electrode exchanging devices are connected in series through the cables, and the electrode exchanging devices are connected with one another in series through the cables; a plurality of cores, divided into bus cores and tap cores connected with the taps, are arranged in the cables. Compared with a high-density electrical method measurement system, the segmented-centralized-type high-density electrical method measurement system has the advantages that the number of the required cable taps is less, the weight of required cables is light, electrical resistivity tests can be supported while induced polarization tests which are not supported by a centralized-type electrical method measurement system can also be supported, the maximum emission current is large, and rolling tests can be supported; compared with a distributed-type high-density electrical method measurement system, the segmented-centralized-type high-density electrical method measurement system has the advantages that cable diameter is small, the maximum emission current is large, the weight of the cables is light, cable cost is low, cables are durable and can be changed independently, and maintaining cost is low.