Patent ID: 9377381
Filing Date: 2016-06-28
CPC Classification: G01N

Claim Text:
1. An apparatus for detection of solids, comprising a carrier disk on which multiple screens are disposed with rotation symmetry, wherein an intake channel for drawing ambient air in through the screen, in each instance, is assigned to the screens in a first rotational position, and a first heating element for vaporization of particles of the solids to be detected, which particles were collected in the screen, in each instance, during intake, and a first aspiration channel connected with an analysis device, for drawing off the vaporized particles, are assigned to the screens in a second rotational position, wherein the angle distance between two adjacent screens of the carrier disk amounts to an even-numbered multiple of an angle α, which the carrier disk passes through during the transition from one rotational position of the carrier disk to an adjacent rotational position, and wherein the carrier disk is structured with rotation symmetry, in such a manner that as the result of rotation of the carrier disk by the angle α, from one rotational position to the next, a switch from a screen to a blind spot, in each instance, or vice versa takes place at a rotational position, so that the intake and first aspiration channels are closed off by the blind spots in every other rotational position.