Loading patent…
AssigneeImpulsphysik GmbH
InventorFrank Fruengel
Estimating the term…
An arrangement for in situ determination of the quantity of turbid matter, aerosol and/or dust in flue gas which flows through a flue by measurement of intensity of light irradiated by means of an optical transmitter in the flue, and dispersed on solid or fluid dispersion particles. The dispersion light is detected by a detector which is arranged outside of the bundle of rays of the transmitter and provided with a wide angle focusing optic. A woodsche horn absorbs the not dispersed part of the bundle of rays of the transmitter. The light source of the transmitter is formed as a xenon spark discharger with intensity maximum in the region of 350-600 nm, the detector signal is evaluated by an evaluating electronic circuit. The arrangement determines extremely low quantities of harmful matter.
An arrangement for in situ determination of the quantity of aerosol in a flue gas which freely flows through a space in situ by measurement of light scattered on particles of aerosol which freely flows in the space, characterized by an optical transmitter with a light source which emits a light into the space in situ toward the freely flowing aerosol;
An arrangement for in situ determination of the quantity of aerosol in a flue gas which freely flows through a space in situ by measurement of light scattered on particles of aerosol which freely flows in the space, characterized in an optical transmitter with a gas discharge flashing bulb supplied from a power generator, to produce light pulses with a duration of 0.5-5 microseconds with a pulse energy of 0.05-0.5 J in spectrum approximately 350-600 nm, and an anastigmat which bundles the light of the gas discharge flashing bulb to a bundle of rays which is supplied into the space in situ toward the freely flowing aerosol, a detector with focusing optic and an evaluating electronic which is arranged outside the bundle of rays so that it receives from the bundle of rays sent by the optical transmitter only scattering light scattered on the particles of the aerosol which freely flows in the space in situ, the evaluating electronic has 50-1000 kHz and a gate circuit which allows passage of the output signal of the detector from the pulse generator synchronously only during the duration of the light pulse.
Dependencies are inferred from the claim text.