Invention Grant
- Patent Title: Temperature compensation module for a fluid flow transducer
- Patent Title (中): 用于流体流量传感器的温度补偿模块
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Application No.: US13943551Application Date: 2013-07-16
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Publication No.: US09255826B2Publication Date: 2016-02-09
- Inventor: Andrew Joseph Milley , Lamar Floyd Ricks , Craig Scott Becke
- Applicant: Honeywell International Inc.
- Applicant Address: US NJ Morris Plains
- Assignee: Honeywell International Inc.
- Current Assignee: Honeywell International Inc.
- Current Assignee Address: US NJ Morris Plains
- Agency: Conley Rose, P.C.
- Agent Kristin Jordan Harkins
- Main IPC: G01F1/68
- IPC: G01F1/68 ; G01F1/698 ; G01F1/684 ; G01F15/02 ; G01F1/692 ; G01F1/696

Abstract:
Apparatus and associated methods relate to a temperature-compensated drive for a heating element used in a micro-bridge flow sensor. In some embodiments, the heating element may be located substantially between two temperature sensors. The two temperature sensors may be convectively coupled to the heater by a fluid ambient. When the fluid ambient is flowing, one of the temperature sensors may be upstream of the heating element, and one of the temperature sensors may be downstream. The fluid may be heated by the heating unit, and this heated fluid may then flow past the downstream temperature sensor. The two temperature sensors may be used in a Wheatstone bridge configuration. In some embodiments, an output signal of the Wheatstone bridge may be indicative of a measure of fluid flow. The temperature-compensated drive for the heating element may enhance, for example, the flow meter's disturbance rejection of ambient temperature.
Public/Granted literature
- US20150020587A1 Temperature Compensation Module For a Fluid Flow Transducer Public/Granted day:2015-01-22
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