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A device for estimating the number and the mass of particles borne in a fluid stream comprises a novel target on which the particles impact at a constant angle thereby generating acoustic signals proportional to the kinetic energy of the particles. The acoustic signals are converted by means of a tr...
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| Format: | Patent |
| Sprache: | eng ; fre |
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| Zusammenfassung: | A device for estimating the number and the mass of particles borne in a fluid stream comprises a novel target on which the particles impact at a constant angle thereby generating acoustic signals proportional to the kinetic energy of the particles. The acoustic signals are converted by means of a transducer to corresponding electric signals which are processed by art computer means. Compensating probes are disclosed for subtracting extraneous noise. |
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