BR0007461A - Dispositivo e método para determinar remotamente pelo menos uma caracterìstica de uma fumaça de emissão de veìculo - Google Patents

Dispositivo e método para determinar remotamente pelo menos uma caracterìstica de uma fumaça de emissão de veìculo

Info

Publication number
BR0007461A
BR0007461A BR0007461-6A BR0007461A BR0007461A BR 0007461 A BR0007461 A BR 0007461A BR 0007461 A BR0007461 A BR 0007461A BR 0007461 A BR0007461 A BR 0007461A
Authority
BR
Brazil
Prior art keywords
filters
detector
characteristic
vehicle emission
determining
Prior art date
Application number
BR0007461-6A
Other languages
English (en)
Inventor
James A Johnson
John D Didomenico
Donald H Stedman
Gary A Bishop
Original Assignee
Envirotest Systems Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Envirotest Systems Corp filed Critical Envirotest Systems Corp
Publication of BR0007461A publication Critical patent/BR0007461A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry

Abstract

"DISPOSITIVO E MéTODO PARA DETERMINAR REMOTAMENTE PELO MENOS UMA CARACTERìSTICA DE UMA FUMAçA DE EMISSãO DE VEìCULO". Um dispositivo sensor remoto para determinar pelo menos uma característica de uma fumaça de emissão de veículo (12) incluindo uma fonte de radiação (10), um detector (14) e uma pluralidade de filtros (15). Tanto os filtros (15) quanto o detector (14) são móveis em relação uns aos outros, de tal modo que filtros diferentes (15), cada um dos quais capaz de filtrar radiação exceto aquela que possua uma faixa de comprimento de onda predeterminada, podem ser usados para filtrar a radiação direcionada ao detector (14). Revela-se também um método para se determinar remotamente pelo menos uma característica de uma fumaça de emissão de veículo (12) usando um detector único (14) e uma pluralidade de filtros (15) no qual tanto o detector (14) quanto os filtros (15) são posicionáveis em relação uns aos outros.
BR0007461-6A 1999-01-12 2000-01-12 Dispositivo e método para determinar remotamente pelo menos uma caracterìstica de uma fumaça de emissão de veìculo BR0007461A (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US11553799P 1999-01-12 1999-01-12
US48068800A 2000-01-11 2000-01-11
PCT/US2000/000600 WO2000042415A1 (en) 1999-01-12 2000-01-12 Remote vehicle emission sensing device with single detector

Publications (1)

Publication Number Publication Date
BR0007461A true BR0007461A (pt) 2002-04-09

Family

ID=26813305

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0007461-6A BR0007461A (pt) 1999-01-12 2000-01-12 Dispositivo e método para determinar remotamente pelo menos uma caracterìstica de uma fumaça de emissão de veìculo

Country Status (7)

Country Link
US (1) US7141793B2 (pt)
EP (1) EP1153281A4 (pt)
CN (1) CN1343305A (pt)
AU (1) AU2963000A (pt)
BR (1) BR0007461A (pt)
HK (1) HK1043829A1 (pt)
WO (1) WO2000042415A1 (pt)

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Also Published As

Publication number Publication date
AU2963000A (en) 2000-08-01
US20060064255A1 (en) 2006-03-23
CN1343305A (zh) 2002-04-03
EP1153281A4 (en) 2005-11-16
HK1043829A1 (zh) 2002-09-27
WO2000042415A1 (en) 2000-07-20
US7141793B2 (en) 2006-11-28
EP1153281A1 (en) 2001-11-14

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A , 10A , 11A E 12A ANUIDA DES.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2138 DE 27/12/2011.