Patent ID: 11965768
Assignee: SHAW DEVELOPMENT, LLC
Field: Measurement (Instruments)
Classification: CPC G  F | IPC G

Claim 9:
10. A housing assembly configured for a fluid sensor assembly, comprising:
a housing having a first sensing volume and a second sensing volume;
the first sensing volume comprising a vertically oriented waveguide having a first sensor at a bottom of the waveguide and a first air vent to an exterior of the housing at a top of the waveguide, the first sensor volume being fluidly coupled to an exterior of the housing through a first fluid aperture covered by a first area of a porous membrane; and
the second sensing volume having a target at a fixed distance from a second sensor and a second air vent at a top of the second sensing volume, the second air vent venting into the first sensor volume, the second sensing volume being coupled to the exterior of the housing through a second fluid aperture covered by a second area of the porous membrane,
wherein the first and second fluid apertures do not provide internal fluid communication between the first sensing volume and the second sensing volume.