Invention Grant
- Patent Title: Corrosion resistant pressure transducer
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Application No.: US14646717Application Date: 2013-11-27
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Publication No.: US09638546B2Publication Date: 2017-05-02
- Inventor: Steven P. Trainoff
- Applicant: Wyatt Technology Corporation
- Applicant Address: US CA Goleta
- Assignee: WYATT TECHNOLOGY CORPORATION
- Current Assignee: WYATT TECHNOLOGY CORPORATION
- Current Assignee Address: US CA Goleta
- Agent David N. Villalpando
- International Application: PCT/US2013/072428 WO 20131127
- International Announcement: WO2014/085721 WO 20140605
- Main IPC: G01L9/14
- IPC: G01L9/14 ; G01L9/10 ; G01L13/02 ; G01L13/06 ; G01L19/06 ; G01N11/08 ; G01D5/12 ; G01L9/00

Abstract:
A pressure transducer is disclosed wherein no wetted areas have been welded. A cavity is milled into the back of each of the blocks of a material which will make up the body of the transducer. Pickup coils are placed into these cavities and are held in place generally with epoxy cement. With the coils mounted within the sensor body, the surface which will be exposed to the sample or reference fluids is comprised of a single, solid material with no welding joints. Further, as the sensor block half is made of a single, solid material, fluid fitting connections may be machined directly into the body. The pickup coil placed within the improved sensor body may be wound on an open frame of nickel superalloy (NiSA). Another embodiment involves coating or encapsulating the sensing membrane within a soft, non-magnetic material protecting it from corrosion.
Public/Granted literature
- US20150292904A1 Corrosion resistant pressure transducer Public/Granted day:2015-10-15
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