Sensing device for sensing a gas and method for estimating a volume of a sensed gas
AssigneeBoydSense, Inc.
InventorBruno Thuillier
Life of this patent
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Abstract
The invention relates to a sensing device for a portable apparatus, in particular a portable telecommunication device or a wearable device, the sensing device comprising an acoustic wave sensing mechanism, like a microphone; and a gas sensing mechanism, wherein the acoustic wave sensing mechanism and the gas sensing mechanism are integrally formed. The invention furthermore relates to an electronic device comprising such a sensing device. In addition, a method is provided that allows calibrating a gas volume based on an output signal of an acoustic wave sensing mechanism.
Claims12
Sensing device for a portable electronic device, the sensing device comprising:
- an acoustic wave sensing mechanism comprising a microphone;
- and
- a gas sensing mechanism,
- wherein the acoustic wave sensing mechanism and the gas sensing mechanism are integrally formed in one device, and
- wherein the acoustic wave sensing mechanism is provided over a substrate and the gas sensing mechanism is stacked over the acoustic wave sensing mechanism.
Sensing device for a portable electronic device, the sensing device comprising:
- an acoustic wave sensing mechanism comprising a microphone;
- and
- a gas sensing mechanism,
- wherein the microphone comprises a membrane,
- wherein the acoustic wave sensing mechanism and the gas sensing mechanism are integrally formed in one device,
- wherein the gas sensing mechanism is based on at least one of tin oxide, carbon nanotubes (CNTs), a gold nanoparticle, a silicon nanowire, a quartz crystal microbalance (QCM), a colorimetric sensor, and a conductive polymer, and
- wherein the gas sensing mechanism is arranged in or on or over the membrane or in or on or over a fixed plate of the microphone;
- and
- wherein the sensing device is configured such that a reference volume of a gas sensed by the gas sensing mechanism is determined based on an electrical signal representative of a movement and/or deformation of the membrane.
Dependencies are inferred from the claim text.