G - Physics – 01 – F
Patent
G - Physics
01
F
G01F 1/28 (2006.01) A62C 37/36 (2006.01) A62C 37/50 (2006.01) G01F 1/688 (2006.01)
Patent
CA 2535158
In a fire sprinkler system, flow sensors are used having strain gauges mounted on supports which project into the sprinkler pipes. When water flow occurs, the supports bend, changing the strain gauge resistance and producing a signal which can be analyzed to indicate which sprinkler heads are open. Since there are no mechanical switches, the sensor units are much smaller and cheaper than previously, and provide more information. A strain gauge can also or alternatively be located outside the pipe to detect vibration caused by flowing water. As an alternative to strain gauges, piezo film can be used, with a vibration analyzer to analyze the signal from the film to determine whether water flow is occurring and which sprinkler heads are open. A piezo film can also be placed on the pipe exterior and the signals from the two piezo films can be applied to differential inputs of a differential amplifier, to cancel signals caused by external influences such as pipe vibration. A thermistor can also be used to sense water flow, using temperature changes when the water begins to flow.
Panov Yaron
Shachar Yosi
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Global File Inc.
LandOfFree
Flow sensor and fire detection system utilizing same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Flow sensor and fire detection system utilizing same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Flow sensor and fire detection system utilizing same will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1861814