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1. WO2011003145 - CHAMBER CONDITION

Publication Number WO/2011/003145
Publication Date 13.01.2011
International Application No. PCT/AU2010/000871
International Filing Date 07.07.2010
IPC
G08B 17/107 2006.01
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
17Fire alarms; Alarms responsive to explosion
10Actuation by presence of smoke or gases
103using a light emitting and receiving device
107for detecting light-scattering due to smoke
G01N 21/53 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
47Scattering, i.e. diffuse reflection
49within a body or fluid
53within a flowing fluid, e.g. smoke
CPC
G01N 21/53
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
47Scattering, i.e. diffuse reflection
49within a body or fluid
53within a flowing fluid, e.g. smoke
G08B 17/107
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
17Fire alarms; Alarms responsive to explosion
10Actuation by presence of smoke or gases ; automatic alarm devices for analysing flowing fluid materials by the use of optical means
103using a light-emitting and receiving device
107for detecting light-scattering due to smoke
G08B 17/113
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
17Fire alarms; Alarms responsive to explosion
10Actuation by presence of smoke or gases ; automatic alarm devices for analysing flowing fluid materials by the use of optical means
11using an ionisation chamber for detecting smoke or gas
113Constructional details
G08B 29/24
GPHYSICS
08SIGNALLING
BSIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
29Checking or monitoring of signalling or alarm systems; Prevention or correction of operating errors, e.g. preventing unauthorised operation
18Prevention or correction of operating errors
20Calibration, including self-calibrating arrangements
24Self-calibration, e.g. compensating for environmental drift or ageing of components
Applicants
  • XTRALIS TECHNOLOGIES LTD [BS]/[BS] (AllExceptUS)
  • KNOX, Ron [AU]/[AU] (UsOnly)
  • BOETTGER, Karl [AU]/[AU] (UsOnly)
Inventors
  • KNOX, Ron
  • BOETTGER, Karl
Agents
  • FREEHILLS PATENT & TRADE MARK ATTORNEYS
Priority Data
200990318407.07.2009AU
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) CHAMBER CONDITION
(FR) CONDITIONNEMENT DE CHAMBRE
Abstract
(EN)
A particle detector (10) including a chamber (12), a first aspirator (14), a sensor(s) (28), a controller (20) and clean air supply (18). The controller, when in a detecting mode, receives an indicative signal from the sensor and applies logic to the indicative signal to generate a further signal (22), and when in the purge mode controls substantial purging of the chamber of sample fluid with clean fluid from the clean fluid supply. The controller receives the indicative signal when the chamber is so purged and if necessary adjusts the logic in response thereto.
(FR)
L'invention porte sur un détecteur de particules (10) comprenant une chambre (12), un premier aspirateur (14), un ou plusieurs capteurs (28), un dispositif de commande (20) et une alimentation en air propre (18). Le dispositif de commande, lorsqu'il est dans un mode de détection, reçoit un signal indicatif du capteur et applique une logique au signal indicatif pour générer un autre signal (22), et lorsqu'il est dans le mode de purge, commande une purge importante de la chambre de fluide d'essai avec du fluide propre provenant de l'alimentation en fluide propre. Le dispositif de commande reçoit le signal indicatif lorsque la chambre est ainsi purgée et, si nécessaire, ajuste la logique en réponse à ce signal.
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