Pressure sensor having reduced hysteresis and enhanced electrical
performance at low pressures
    8.
    发明授权
    Pressure sensor having reduced hysteresis and enhanced electrical performance at low pressures 失效
    压力传感器在低压下具有减小的滞后和增强的电气性能

    公开(公告)号:US5703296A

    公开(公告)日:1997-12-30

    申请号:US590710

    申请日:1995-06-27

    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.

    摘要翻译: 适用于感应低压环境的压力传感器。 压力传感器包括封装在保护壳体内的压阻感测元件,并且利用插入到壳体中的插入件来支撑感测元件并且与壳体内的集中应力距离感测元件最远的距离。 插入件适于与约束条件协同工作,以将感测元件与壳体内的应力隔离,以便将感测元件的电气性能改善为诸如汽车的蒸发排放系统的低压环境。