Spherical electromagnetic water current velocity sensor with protruding electrodes

摘要: Electromagnetic sensing means are disclosed for measuring the velocity of a current fluid, such as water, characterized by use spherical body containing electromagnetic including first coil establishing magnetic field in fluid which is submerged, and plurality pairs peripherally mounted circumferentially spaced diametrically arranged electrodes contained common plane normal to axis field, each electrode pair protruding radially outwardly from outer surface distance between 0.100 0.125 inch per diameter body. In two-axis embodiment, second orthogonally-arranged opposed provided, together with detecting indicating comparing electrical signals produced across pairs, respectively. three-axis an also provided producing bisects opposite angles defined diameters electrodes, third both coil. The three compared afford indication velocity.