Embodiments relate generally to water meters and to systems and networks that contain such water meters. Particular water meters described herein are enabled for communication with a remote server to transmit flow measurement information. Some embodiments have a vibration sensor included in the water meter to sense vibration originating in the upstream water supply network that may indicate the possible presence of an upstream water leak.

Water meter and systems and networks comprising the same

The invention relates to a method for monitoring a fluid meter (1) mounted in a fluid-supplying fluid distribution system. According to said method, an event in the form of noise produced during the operation of the fluid meter (1) and caused either by the operation of the fluid meter or by a concussion caused in the fluid distribution system, and which event cannot be attributed to the flow measurement as such and mechanically excites the ultrasonic transducer, is selectively detected by means of the ultrasonic transducer (6a, 6b) and analyzed, and at least one operating parameter specific of said fluid meter is generated on the basis of the result of said analysis.

Method for monitoring the operation of a fluid meter and fluid meter

The invention refers to a fluid consumption meter (50) configured to measure a flow rate of a fluid and comprising a noise detection module (40) for leak detection, further comprising a control device comprising a bi-directional communication unit (60) and being configured to receive a leak detection control signal from an external device (100), to set the fluid consumption meter (50) into a leak detection mode upon reception of the leak detection control signal, and to start a noise measurement for leak detection in said leak detection mode and to transmit data from said noise detection module, an to a leak detection system.

Fluid consumption meter and leak detection system

Verfahren zur Betriebsuberwachung eines in einem Fluidleitungsnetz zur Fluidversorgung installierten Fluidzahlers (1), wobei mittels des Ultraschallwandlers (6a, 6b) ein den Ultraschallwandler mechanisch anregendes, nicht der Durchflussmessung zuzurechnendes Ereignis in Formeines wahrend des Betriebs im Fluidzahler (1) generiertes, durch den Betrieb des Fluidzahlers bedingtes Gerausch odereines im Leitungsnetz verursachten Druckschlags selektiv erfasst und ausgewertet wird und anhand des Ergebnisses dieser Auswertung mindestens eine Fluidzahler-individuelle Betriebseigenschaft generiert wird.

Verfahren zur Betriebsüberwachung eines Fluidszählers sowie Fluidzähler

A measurement apparatus (10) and to a method provide for the determination of a flow rate (v) and/or of a throughflow (Q) of a fluid (14) flowing in a conduit (12). At least one first ultrasonic transducer (18) and one second ultrasonic transducer (20) permit a flow rate determination via the time of flight of an ultrasound signal. To further improve the determination of a flow rate of a fluid using ultrasonic transducers, in particular at very high flow rates, and to enable the measurement of very high flow rates, a noise-measuring ultrasonic transducer (18, 20; 24) is provided that measures the noise generated in on the flowing past of the fluid (14) in the ultrasonic transducer, and a control and evaluation device (32) is configured to determine the flow rate (v) using the noise measurements.

Flow measurement using ultrasound to detect a time of flight difference using noise measurements

A consumption meter, e.g. a water or heat meter, for measuring a flow rate of a fluid supplied in a flow tube. First and second ultrasonic transducers are arranged at the flow tube for transmitting and receiving ultrasonic signals transmitted through the fluid and operated by a flow measurement sub-circuit for generating a signal indicative of the flow rate of the fluid. A noise measurement sub-circuit operates a sensor arranged at the flow tube for detection of acoustic signals of the flow tube, and being arranged to generate a signal indicative of a noise level of the flow tube accordingly. This sensor may comprise a separate transducer, or the sensor may be constituted by one or both of the first and second ultrasonic transducers. The consumption meter may communicate data representative of the noise level via a communication module along with data consumed amount of water, heat etc. Such consumer noise level measurement at the consumer site allows collection of noise level data to assist in locating fluid leakages in a fluid supply pipe system.

René Gajda Kristensen

Papers

Fluid consumption meter with noise sensor