Research On Measuring Device Of Plate Current Density In ESP

The density distribution of the ESP plate current plays an important role in evaluating it. It is important to research on the device of steady, fast and convenient measuring the plate current density for the design of ESP and electrode configuration. This paper brings forward new method on measuring the plate current density of ESP and introduces each parts of the measuring device such as the transforming of I/O, the magnification of pressure code, the transforming of A/D, the interface circuit, the data receiving method of computer and etc. For some parts, many methods are brought forward and compared.