Patent ID: 6971272

Claim:
A fluid sensing device, the fluid sensing device comprising: a fluid flow device including a first mating portion and a second mating portion, the first mating portion including a first aperture, the second mating portion including a second aperture, the first aperture and the second aperture being at least partially aligned such that the first aperture and the second aperture define a channel through the first and second mating portions when the first and second mating portions are joined together, the channel being able to communicate fluid therethrough; and a circuit board sandwiched between the first mating portion and the second mating portion, the circuit board including at least one flow sensor, the at least one flow sensor being at least partially aligned with the channel, the at least one flow sensor being able to detect a physical characteristic of the fluid flowing through the channel, the flow sensor including a paddle and a support member, the paddle being at least partially disposed in the channel, the paddle being displaced in response to fluid flowing through the channel, the support member positioning the paddle at least partially in the channel, the support member including a plurality of strain gauges, the plurality of strain gauges being mechanically stressed in response to the paddle being displaced.