Fine particle analyzing device

Optics: measuring and testing – Sample – specimen – or standard holder or support – Fluid containers

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Details

356336, 356339, 356342, 356343, 250574, G01N 110

Patent

active

054326010

ABSTRACT:
A device for analyzing fine particles in a sample gas includes a light source for emitting light, a convergent device for converting the light emitted by the light source into a convergent light beam having a light focus point and an energy density sufficient to dissociate the fine particles to be analyzed. The device also includes a transparent analyzer tube having a window for admitting the convergent light beam and a throat located at the light focus point of the convergent light beam, the analyzer tube receiving the sample gas and passing the sample gas through the throat. The device includes a light collecting device for collecting, through the analyzer tube, light emitted from dissociated fine particles, dissociated by the convergent light beam in the throat of the analyzer tube, and an analyzing device for analyzing the light from the dissociated fine particles collected by the collecting device.

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patent: 4068125 (1978-01-01), Bell
patent: 4212539 (1980-07-01), Berber et al.
patent: 4591268 (1986-05-01), Lew
patent: 5030843 (1991-07-01), Wakamura
patent: 5155543 (1992-10-01), Hirako

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