Leak detector
First Claim
1. A leak detector for detecting and locating leaks in a water supply pipe of plastics, the leak detector comprising:
- a first sensor at a first position arranged to detect a leak signal travelling along a pipe;
a second sensor arranged to detect a leak signal travelling along the pipe at a second position spaced from the first position; and
a processing device adapted to;
receive the signals from the first and second sensors;
fine filter the signals from the first and second sensors using first filter settings;
analyse the fine filtered signals from the first and second sensors to identify a frequency range where leak signals are present;
fine filter the signals from the first and second sensors using second filter settings, based on the identified frequency range;
using the leak signals fine filtered with the second filter settings, determine a velocity of the leak signals from measurement of characteristics of the leak signals; and
using the velocity and a distance between the first sensor and the second sensor, determine a location of a leak.
1 Assignment
0 Petitions
Accused Products
Abstract
A leak detector for detecting and locating leaks in a water supply pipe of plastics, the leak detector comprising a first sensor at a first position arranged to detect a leak signal travelling along a pipe, a second sensor arranged to detect a leak signal travelling along the pipe at a second position spaced from the first position, and a processing device adapted to receive the signals from the first sensor and the second sensor. The processing device may be adapted to determine the velocity of the signals from characteristics of the leak signals. The processing device is adapted to use the velocity and distance between the first sensor and the second sensor to determine the location of a leak. The characteristics may be the relationship between the phase and frequency of the leak signals.
28 Citations
20 Claims
-
1. A leak detector for detecting and locating leaks in a water supply pipe of plastics, the leak detector comprising:
-
a first sensor at a first position arranged to detect a leak signal travelling along a pipe; a second sensor arranged to detect a leak signal travelling along the pipe at a second position spaced from the first position; and a processing device adapted to; receive the signals from the first and second sensors; fine filter the signals from the first and second sensors using first filter settings; analyse the fine filtered signals from the first and second sensors to identify a frequency range where leak signals are present; fine filter the signals from the first and second sensors using second filter settings, based on the identified frequency range; using the leak signals fine filtered with the second filter settings, determine a velocity of the leak signals from measurement of characteristics of the leak signals; and using the velocity and a distance between the first sensor and the second sensor, determine a location of a leak. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method of detecting the position of a leak in pipes of plastics comprising the steps of;
-
listening for a leak signal at a first position along a pipe; listening for a leak signal at a second position along the pipe spaced from the first position; fine filtering signals detected at the first and second positions using first filter settings; analysing the fine filtered signals from the first and second positions to identify a frequency range where leak signals are present; fine filtering the signals from the first and second sensors using second filter settings, based on the identified frequency range; determining a sensor spacing distance between the first position and the second position; using the leak signals fine filtered with the second filter settings to determine a the velocity of the leak signals from characteristics of the signals; and identifying a location of a leak using the sensor spacing distance and the velocity. - View Dependent Claims (17, 18, 19, 20)
-
Specification