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US 2018/0321075 A1Published application
Zeroing a Target Flowmeter
AssigneeCDI Meters, Inc.
InventorRoger E. Dennison
Life of this patent
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Abstract
A system and method of automatically zeroing a target flowmeter wherein a lack of variation in the raw flow signal is taken as an indication of lack of turbulence, and thus of an extremely low-flow condition under which automatic zeroing may be performed.
Claims17
A system for automatically zeroing a target flowmeter, comprising:
- a target element that is configured to be placed into a fluid flow and generate an output signal that is related to a sensed force on the target element due to the fluid flow;
- and
- a processor that is configured to:
- determine, based on the target element output signal, a condition where the fluid flow is zero or essentially zero;
- determine a no-flow target element output signal during the condition where the flow is zero or essentially zero;
- and
- determine, based on a change in the target element output signal from its no-flow value, a fluid flow rate.
4 more elements
Dependencies are inferred from the claim text.