Remote surface charge detection device for water with excess charge

Abstract A non-destructive surface charge detection is crucial for charged water research and exploitation of in different applications. The widely used existing methods such as Kelvin force spectroscopy, Mass impedance Electrophoretic light scattering etc which are costly not portable. This work presents the design development a compact, portable, low cost incoherent IR based modality. It on Thomson electromagnetic wave ions. Here, an photosensor deployed to detect change beam from surface. distinct signature reflected radiation recorded using proposed setup. types produced electrohydrodynamic bridge with relatively high H + OH - discrimination neutral, positive negatively demonstrated by device successfully.