Measuring and testing – Fluid pressure gauge – Mounting and connection
Patent
1997-12-22
2000-06-20
Oen, William
Measuring and testing
Fluid pressure gauge
Mounting and connection
G01L 700
Patent
active
060764090
ABSTRACT:
Media compatible packages for pressure sensing devices include molded polymeric housings and diaphragms which mount and isolate pressure sensing devices in operative contact with any type of corrosive or non-corrosive media for pressure measurement. The various pressure sensor package housings include a main cavity in which a pressure sensor is mounted, a polymeric diaphragm bonded to the housing within the main cavity, at least one media port which leads to a pressure port on one side of the diaphragm, and a pressure transfer cavity on an opposite side of the diaphragm in which a pressure sensor is located. A fill port through a wall of the housing between the diaphragm and the pressure sensor allows the pressure transfer cavity to be filled with a pressure transfer medium such as oil and then sealed, without introducing any excess pressure. The use of bondable polymers to form the housing and thin film diaphragms provides excellent media compatibility for pressure measurements in corrosive environments. Differential dual port packages having a media conduit and diaphragm on opposite sides of a single sensor are also provided. Internal walls of the connectable halves of the pressure sensor housing are configured to capture, position and hold a pressure sensing device within a main cavity of the housing, and to form at least one pressure transfer cavity between a pressure sensing device and a diaphragm.
REFERENCES:
patent: 4023562 (1977-05-01), Hynecek et al.
patent: 4222277 (1980-09-01), Kurtz et al.
patent: 4287501 (1981-09-01), Tominaga et al.
patent: 4563903 (1986-01-01), Kohnlechner et al.
patent: 4576049 (1986-03-01), Kohnlechner
patent: 4644797 (1987-02-01), Ichikawa et al.
patent: 4656454 (1987-04-01), Rosenberger et al.
patent: 4658651 (1987-04-01), Le
patent: 4675643 (1987-06-01), Tanner et al.
patent: 4686764 (1987-08-01), Adams et al.
patent: 4691573 (1987-09-01), Varnum et al.
patent: 4695817 (1987-09-01), Kurtz et al.
patent: 4732042 (1988-03-01), Adams
patent: 4763098 (1988-08-01), Glenn et al.
patent: 4773269 (1988-09-01), Knecht et al.
patent: 4784721 (1988-11-01), Holmen et al.
patent: 4790192 (1988-12-01), Knecht et al.
patent: 4841777 (1989-06-01), Hershey et al.
patent: 4888662 (1989-12-01), Bishop
patent: 4920972 (1990-05-01), Frank et al.
patent: 4926155 (1990-05-01), Colla et al.
patent: 4934193 (1990-06-01), Hayata
patent: 4993265 (1991-02-01), Koen et al.
patent: 5076147 (1991-12-01), Hegner et al.
patent: 5184107 (1993-02-01), Maurer
patent: 5212989 (1993-05-01), Kodama et al.
patent: 5222397 (1993-06-01), Kodama
patent: 5279164 (1994-01-01), Araki et al.
patent: 5307684 (1994-05-01), Moss et al.
patent: 5333507 (1994-08-01), Vogler et al.
patent: 5351550 (1994-10-01), Maurer
patent: 5436491 (1995-07-01), Hase et al.
patent: 5438876 (1995-08-01), Lewis
patent: 5461922 (1995-10-01), Koen
patent: 5483834 (1996-01-01), Frick
patent: 5518951 (1996-05-01), Paynter et al.
patent: 5518957 (1996-05-01), Kim
patent: 5522267 (1996-06-01), Lewis
patent: 5581226 (1996-12-01), Shah
patent: 5595939 (1997-01-01), Otake et al.
patent: 5600071 (1997-02-01), Sooriakumar et al.
patent: 5796007 (1998-08-01), Panagotopulos et al.
Notification of Transmittal of the International Search Report or the Declaraction in PCT International Application US98/27388. (No date).
Marek T. Wlodarczyk, Environmentally insensitive commercial pressure sensor, SPIE vol. 1368 Checmical, Biochemical, and Environmental fiber Sensors II (1990), pp. 121-123.
David J. Monk, Theresa Maudie, Dennis Stanerson, John Wertz, Gordon Bitko, Jeanene Matkin, and Slobodan Petrovic, Media Compatible Packaging and Environmental Testing of Barrier Coating Encapsulated Silicon Pressure Sensors, Solid-State Sensor and Actuator Workshop, Hilton Head, S. Carolina (Jun. 2-6, 1996) pp. 36-41.
Karsten Dyrbye, Tina Romedahl Brown and Gert Friis Eriksen, Packaging of physical sensors for aggresive media applications, J. Micromech. Microeng 6 (1996) pp. 187-192.
Oen William
Rosemount Aerospace Inc.
LandOfFree
Media compatible packages for pressure sensing devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Media compatible packages for pressure sensing devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Media compatible packages for pressure sensing devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1842196