Wireless flow sensor

Details Wireless flow sensor Wireless flow sensor

G - Physics

01

F

G01F 15/06 (2006.01) A61M 1/00 (2006.01) A61M 27/00 (2006.01) G01V 3/12 (2006.01) G01V 15/00 (2006.01) G08C 17/02 (2006.01)

Patent

CA 2642385

Devices and methods useful for non-invasively measuring and indicating a rate of fluid flow are disclosed. In one embodiment, a sensor housing adapted to received fluid flow therethrough is provided. A radio frequency tag and a masking element can be disposed in the sensor housing. The masking element and the radio frequency tag can be configured to move relative to one another. The relative positions or movement can alter the response of the radio frequency tag to a wireless signal (which can be emitted from an external reading device, for example) and thereby indicate a rate of fluid flowing through the housing. For example, in some embodiments, the masking element can selectively cover at least part of the radio frequency tag in correspondence to the flow rate, which can change a characteristic of the radio frequency tag's response to the wireless signal.

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