FR2193486A5 - - Google Patents

Info

Publication number
FR2193486A5
FR2193486A5 FR7226516A FR7226516A FR2193486A5 FR 2193486 A5 FR2193486 A5 FR 2193486A5 FR 7226516 A FR7226516 A FR 7226516A FR 7226516 A FR7226516 A FR 7226516A FR 2193486 A5 FR2193486 A5 FR 2193486A5
Authority
FR
France
Legal status (The legal status 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 status listed.)
Expired
Application number
FR7226516A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOTELLIER JAC UES L
Original Assignee
HOTELLIER JAC UES L
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 HOTELLIER JAC UES L filed Critical HOTELLIER JAC UES L
Priority to FR7226516A priority Critical patent/FR2193486A5/fr
Application granted granted Critical
Publication of FR2193486A5 publication Critical patent/FR2193486A5/fr
Expired legal-status Critical Current

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
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/103—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using a light emitting and receiving device
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B17/00—Fire alarms; Alarms responsive to explosion
    • G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
    • G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
    • G08B17/113—Constructional details

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
FR7226516A 1972-07-24 1972-07-24 Expired FR2193486A5 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7226516A FR2193486A5 (fr) 1972-07-24 1972-07-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7226516A FR2193486A5 (fr) 1972-07-24 1972-07-24

Publications (1)

Publication Number Publication Date
FR2193486A5 true FR2193486A5 (fr) 1974-02-15

Family

ID=9102235

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7226516A Expired FR2193486A5 (fr) 1972-07-24 1972-07-24

Country Status (1)

Country Link
FR (1) FR2193486A5 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0015007A1 (fr) * 1979-02-23 1980-09-03 Hekatron GmbH Montage pour un indicateur optique de gaz de fumée
EP0054680A1 (fr) * 1980-12-18 1982-06-30 Cerberus Ag Détecteur de fumée d'après le principe d'extinction de radiation
DE2856259C2 (fr) * 1978-12-27 1987-01-22 Cerberus Ag, Maennedorf, Zuerich, Ch

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856259C2 (fr) * 1978-12-27 1987-01-22 Cerberus Ag, Maennedorf, Zuerich, Ch
EP0015007A1 (fr) * 1979-02-23 1980-09-03 Hekatron GmbH Montage pour un indicateur optique de gaz de fumée
EP0054680A1 (fr) * 1980-12-18 1982-06-30 Cerberus Ag Détecteur de fumée d'après le principe d'extinction de radiation

Similar Documents

Publication Publication Date Title
JPS4996727A (fr)
DK137293C (fr)
JPS522460B2 (fr)
FR2192090B1 (fr)
FR2193486A5 (fr)
JPS49135846A (fr)
JPS4995401U (fr)
JPS5126324Y2 (fr)
JPS5121414B2 (fr)
FR2209796B3 (fr)
JPS4999129A (fr)
JPS4877780A (fr)
JPS4939240A (fr)
JPS4930910A (fr)
JPS4915498U (fr)
JPS4895441U (fr)
JPS499364Y1 (fr)
JPS4996830U (fr)
JPS4991807A (fr)
JPS4989606U (fr)
JPS4925427U (fr)
CS157288B1 (fr)
CH585261A5 (fr)
CH583897A5 (fr)
NL7305476A (fr)

Legal Events

Date Code Title Description
TP Transmission of property