Invention Grant
US08683873B1 Phase detector for a vortex flowmeter using ultrasonic transducers connected to separate transformers for phase detection
失效
使用连接到分离变压器的超声波换能器进行相位检测的涡街流量计的相位检测器
- Patent Title: Phase detector for a vortex flowmeter using ultrasonic transducers connected to separate transformers for phase detection
- Patent Title (中): 使用连接到分离变压器的超声波换能器进行相位检测的涡街流量计的相位检测器
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Application No.: US13572737Application Date: 2012-08-13
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Publication No.: US08683873B1Publication Date: 2014-04-01
- Inventor: Murray F Feller
- Applicant: Murray F Feller
- Applicant Address: US FL Clearwater
- Assignee: Onicon, Inc.
- Current Assignee: Onicon, Inc.
- Current Assignee Address: US FL Clearwater
- Agent David Kiewit
- Main IPC: G06F1/32
- IPC: G06F1/32 ; G01F1/66
Abstract:
A vortex-shedding flowmeter uses two ultrasonic transducers to generate an acoustic beam at a selected carrier frequency. Vortices generate fluid oscillations that are detected when they pass through the beam and induce phase changes representative of fluid flow rate. In an improved vortex-shedding flowmeter each of the transducers is connected to a separate transformer and the outputs of the two transformers are interconnected to yield the phase change.
Public/Granted literature
- US2107038A Projection screen Public/Granted day:1938-02-01
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