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1. (CA2760026) IMPROVEMENTS TO PARTICLE DETECTORS

Office : Canada
Application Number: 2760026 Application Date:
Publication Number: 2760026 Publication Date: 04.11.2010
Grant Number: Grant Date: 20.03.2018
Publication Kind : C
Prior PCT appl.: Application Number:PCTAU2010000511 ; Publication Number: Click to see the data
IPC:
G08B 17/107
G01N 21/53
G PHYSICS
08
SIGNALLING
B
SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
17
Fire alarms; Alarms responsive to explosion
10
Actuation by presence of smoke or gases
103
using a light emitting and receiving device
107
for detecting light-scattering due to smoke
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
47
Scattering, i.e. diffuse reflection
49
within a body or fluid
53
within a flowing fluid, e.g. smoke
CPC:
G01N 21/53
G01N 2201/062
G01N 2201/0627
G01N 2201/0633
G01N 15/0205
G01N 15/1459
G01N 21/538
G01N 2201/061
G01N 2201/0621
G01N 2201/0696
H01L 29/045
H01L 29/1037
H01L 29/7786
H01L 29/872
F21K 9/00
G01N 15/10
G01N 15/1434
H01L 29/0657
H01L 29/1029
H01L 29/1066
H01L 29/2003
H01L 29/42356
Applicants: XTRALIS TECHNOLOGIES LTD
Inventors:
Priority Data: 2009901922 01.05.2009 AU
2009901923 01.05.2009 AU
2009901924 01.05.2009 AU
2009901925 01.05.2009 AU
2009901926 01.05.2009 AU
2009901927 01.05.2009 AU
Title: (EN) IMPROVEMENTS TO PARTICLE DETECTORS
(FR) AMELIORATIONS APPORTEES A DES DETECTEURS DE PARTICULES
Abstract: front page image
(EN)



A beam detector (10) including a light source (32), a receiver (34), and a
target (36), acting in co-operation to de-tect
particles in a monitored area (38). The target (36), reflects incident light
(40), resulting in reflected light (32) being returned
to receiver (34). The receiver (34) is a receiver is capable of recording and
reporting light intensity at a plurality of points across
its field of view. In the preferred form the detector (10) emits a first light
beam (3614) in a first wavelength band; a second light
beam (3618) in a second wavelength band; and a third light beam (3616) in a
third wavelength band, wherein the first and second
wavelengths bands are substantially equal and are different to the third
wavelength band.


Also published as:
EP2425411US20120140231JP2012525564CN102460527KR1020120034633AU2010242552
MYPI 2011005239KR1020170049631IN8848/CHENP/2011KR1020180061410WO/2010/124347