APARATO PARA PRESENTAR UNA MUESTRA PARTICULADA ANTE EL CAMPO DE LECTURA DE UN DISPOSITIVO SENSOR, QUE COMPRENDE UNA PRIMERA SUPERFICIE GIRATORIA, UNA SEGUNDA SUPERFICIE GIRATORIA EN SENTIDO CONTRARIO A LA ANTERIOR Y UBICADA EN UN RADIO DENTRO DE LA P

摘要

An apparatus and method for presenting various surfaces of particles within a sample to a sensor device is provided. More particularly, embodiments of the present invention provide a pair of concentric counter-rotating surfaces and a dividing member fixed radially therebetween so as to form a scanning chamber wherein sample particles are reoriented relative to the scanning field of an adjacent sensor device by the counter-rotation of the surfaces and the consequent recirculation of the sample particles through the scanning chamber.