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US 12,747,971 B2Granted
Flow rate detection for an aspirating smoke detection system
AssigneeHoneywell International Inc.
InventorsAleksis Terence Hughes, Michael Anthony De Looper, Elizabeth Chai
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Abstract
Methods, devices, and systems for flow rate detection for an aspirating smoke detection system are described herein. One device includes a flow rate sensor for an aspirating smoke detection system comprising a flow chamber to allow a gas to flow through the flow chamber and a receive coil located inside the flow chamber, where a processor is to execute instructions to receive a signal from the receive coil and determine a flow rate of gas through the flow chamber based on the signal.
Claims9
A flow rate sensor for an aspirating smoke detection system, comprising:
- a flow chamber configured to allow a gas to flow through the flow chamber;
- a bluff body located inside the flow chamber and configured to disrupt the flow of the gas through the flow chamber;
- a receive coil located on a printed circuit board (PCB) inside the flow chamber, wherein:
- the receive coil is configured to physically oscillate in response to the flow of the gas acting upon the receive coil;
- and
- in response to the physical oscillation, the receive coil is configured to generate a signal;
- a memory;
- and
- a processor configured to execute executable instructions stored in the memory to:
- determine a frequency of the signal generated by the receive coil;
- and
- determine a flow rate of the gas through the flow chamber based on the frequency of the signal.
9 more elements
Dependencies are inferred from the claim text.