Title:
気密式の圧力変換器
Document Type and Number:
Japanese Patent JP4756744
Kind Code:
B2
Abstract:
A port fitting (12, 42) is formed with a closed, pedestal end forming a diaphragm (12a, 42b) on which a strain gauge sensor (22) is mounted. A support member (16, 44) is received on the pedestal end and is formed with a flat end wall (16a, 44a) having an aperture (16c, 44c) aligned with the sensor. A portion of a flexible circuit assembly (24a, 58a) is bonded to the flat end wall. An electronics chamber is formed in a connector (18, 46) which is inverted and maintained at a selected height adjacent to the flat end wall of the support member to facilitate soldering of the flexible circuit to terminals (20, 48) in the connector and electronic components to the flexible circuit. The port fitting, when assembled to the support member, is also maintained at the selected height adjacent to the inverted connector to facilitate wire bonding the sensor to the bonded portion of the flexible circuit. The connector (18, 46) is then turned over, bending the flexible circuit assembly (24, 58) into a generally U-configuration, and attached to the support member. In one embodiment, as a last step in assembling the transducer, a tubular outer housing (3) is fitted over the connector/support member sub-assembly and its bottom portion is welded to a support flange of the port fitting while its top portion places a selected load on an O-ring (28) received about the connector as well as internal components of the transducer.
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Inventors:
Peter Ay, Wise
Chris Di, Wagner
Thomas Earl, Maher
Chris Di, Wagner
Thomas Earl, Maher
Application Number:
JP2001003231A
Publication Date:
August 24, 2011
Filing Date:
January 11, 2001
Export Citation:
Assignee:
Sensata Technologies, Inc.
International Classes:
G01L19/14; G01L9/00
Domestic Patent References:
| JP8021775A | ||||
| JP2189435A | ||||
| JP8148878A | ||||
| JP11177278A |
Attorney, Agent or Firm:
Kyozo Katayose