发明名称 |
Pressure sensor having reduced hysteresis and enhanced electrical performance at low pressures |
摘要 |
A pressure sensor suitable for sensing low pressure environments. The pressure sensor includes a piezoresistive sensing element enclosed within a protective housing, and utilizes an insert molded into the housing for supporting the sensing element and concentrating stresses within the housing at a maximum distance from the sensing element. The insert is adapted to work in cooperation with a constraint to isolate the sensing element from stresses within the housing, so as to improve the electrical performance of the sensing element to low pressure environments, such as an evaporative emission system of an automobile.
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申请公布号 |
US5703296(A) |
申请公布日期 |
1997.12.30 |
申请号 |
US19950590710 |
申请日期 |
1995.06.27 |
申请人 |
DELCO ELECTRONICS CORP. |
发明人 |
LITTLE, LEWIS HENRY;HOPKINS, RUSSELL BOLIN;MATLY, JOHN MICHAEL |
分类号 |
G01L9/12;G01L9/00;G01L19/04;(IPC1-7):G01L7/00 |
主分类号 |
G01L9/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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