10/18/2023 0 Comments Br charge![]() ![]() For instance, in the corotron setup corona wires are placed above the photoconductive plate, whereas in the scorotron system a metallic grid is inserted between the corona wires and the plate, the grid being biased to a voltage that approximates the potential required for charging the plate. A number of experimental arrangements have been used since then. ![]() Interest in corona charging of dielectrics arose in the 1940s following Carlson's invention of the first electrophotographic system, since sensitizing the photoconductive plate by corona discharge was proven more effective than other methods. The application of corona charging to pole nonlinear optic (NLO) polymers is discussed, including the perspectives for the constant current charging method for the NLO field. A few examples are given of the use of the constant current corona triode in the investigation of electrical properties of nonpolar and ferroeleectric polymers. Following a short introduction to corona charging, the experimental setups are described, especially with regard to the advantages in the constant current method. Bernhard Gross' work in São Carlos, Brazil. This latter method, which has been successfully applied to several types of polymer, is a legacy from Prof. This paper contains a brief overview on the recent developments of corona charging of polymers, with emphasis on the current corona triode. ![]()
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