System and method for improved volume measurement
First Claim
Patent Images
1. An apparatus comprising:
- an acoustic source configured to be acoustically coupled to a variable-volume chamber;
a microphone configured to be acoustically coupled to the variable-volume chamber; and
a processor configured to receive a signal from the microphone, and further configured to determine a volume of the variable-volume chamber based on the received signal, the processor being embedded on a printed circuit board.
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Abstract
An apparatus comprises a variable acoustic source and a microphone, both acoustically coupled to a volume having a fluid region and an air region. The apparatus also can include a processor to determine a volume of the air region based on signals received from the microphone and the variable acoustic source. A fluid valve is coupled to the processor, and is configured to allow an amount of fluid to exit the fluid region associated with the volume of the air region. An atomizer, coupled to the fluid region, is configured to aerosolize at least a portion of the fluid.
49 Citations
30 Claims
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1. An apparatus comprising:
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an acoustic source configured to be acoustically coupled to a variable-volume chamber;
a microphone configured to be acoustically coupled to the variable-volume chamber; and
a processor configured to receive a signal from the microphone, and further configured to determine a volume of the variable-volume chamber based on the received signal, the processor being embedded on a printed circuit board. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An apparatus comprising:
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a housing containing a first volume and a second volume, the housing configured to be acoustically coupled to a third volume;
a first microphone disposed within the first volume;
a second microphone disposed within the second volume;
a printed circuit board disposed within the housing such that the printed circuit board separates the first volume from the second volume, the printed circuit board including an acoustic source;
and wherein the apparatus further comprises a processor configured to calculate a change in the third volume that is associated with an amount of fluid output. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. An apparatus comprising:
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a housing configured to be in communication with a valve, the housing containing a first volume, a second volume and a third volume that is acoustically coupled to the second volume;
a printed circuit board disposed within the housing such that the printed circuit board separates the first volume from the second volume, the printed circuit board including an acoustic source;
a first microphone disposed within the first volume;
a second microphone disposed within the second volume;
and wherein the apparatus further comprises a processor configured to calculate a change in the third volume that is associated with an amount of fluid output. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
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24. An apparatus comprising:
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a housing configured to be in communication with a valve;
a printed circuit board disposed within the housing such that the printed circuit board defines a first volume and a second volume, the printed circuit board including an acoustic source;
a first microphone disposed within the first volume;
a second microphone disposed within the second volume;
and wherein the apparatus further comprises a processor configured to calculate a change in the second volume that is associated with an amount of fluid output. - View Dependent Claims (25, 26, 27, 28, 29, 30)
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Specification