FLOW MEASUREMENT DEVICE
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United States of America Patent
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Issued Date -
Jan 11, 2024
app pub date -
Sep 29, 2020
filing date -
Sep 29, 2020
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Abstract
Provided is a flow measurement device capable of reliably correcting a measurement error of a flow rate of a fluid due to the temperature of the fluid. A bluff body 32 is inserted in a flow path 31 in a measuring pipe 30 to generate Karman vortices downstream of the bluff body 32, and a temperature sensor 36 is arranged downstream of a piezoelectric element 35 for sensing a change in the Karman vortices by converting the change into an electrical signal. The flow rate of the fluid can be corrected based on a relation of a vortex shedding frequency at a temperature of the fluid measured with the temperature sensor 36 and a vortex shedding frequency of the fluid measured at a reference temperature.
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