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1. CA2731123 - DETECTOR AND METHODS OF DETECTING

Office Canada
Application Number 2731123
Application Date 16.07.2009
Publication Number 2731123
Publication Date 21.01.2010
Grant Number
Grant Date 22.11.2016
Publication Kind C
IPC
G01M 3/00
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3Investigating fluid tightness of structures
CPC
G01H 11/08
GPHYSICS
01MEASURING; TESTING
HMEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
11Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties
06by electric means
08using piezo-electric devices
G01M 3/243
GPHYSICS
01MEASURING; TESTING
MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
3Investigating fluid-tightness of structures
02by using fluid or vacuum
04by detecting the presence of fluid at the leakage point
24using infrasonic, sonic, or ultrasonic vibrations
243for pipes
Applicants GROVELEY DETECTION LIMITED
Priority Data 0813014.8 16.07.2008 GB
Title
(EN) DETECTOR AND METHODS OF DETECTING
(FR) DETECTEUR ET PROCEDES DE DETECTION
Abstract
(EN)



An ultrasonic detector (10) suitable for mounting in a position for surveying
an area for a source of airborne
ultra-sound, which detector comprises a sensor (20) for detecting an
ultrasonic sound signal, characterised by a transducer (64)
config-ured to produce a broadband ultrasonic sound signal for reception by
said sensor (20) enabling said ultrasonic detector to perform
a self-test.