HIGH TEMPERATURE OPTICAL PRESSURE SENSOR AND METHOD OF FABRICATION OF THE SAME
    12.
    发明申请
    HIGH TEMPERATURE OPTICAL PRESSURE SENSOR AND METHOD OF FABRICATION OF THE SAME 有权
    高温光压传感器及其制造方法

    公开(公告)号:US20100242628A1

    公开(公告)日:2010-09-30

    申请号:US12411878

    申请日:2009-03-26

    IPC分类号: G01L1/24 B29D11/00

    CPC分类号: G01L9/0079 G01L9/0007

    摘要: A high-temperature pressure sensor is provided. The sensor includes a quartz substrate with a cavity etched on one side. A reflective coating is deposited on at least a portion of the cavity. The sensor further includes a ferrule section coupled to the quartz substrate with the cavity therebetween. The cavity exists in a vacuum, and cavity gap is formed between the reflective metal coating and a surface of the ferrule. The sensor also includes an optical fiber enclosed by the ferrule section and extending from the cavity gap to an opposing end of the ferrule section and a metal casing surrounding the ferrule section and the quartz substrate with an opening for said optical fiber extending therefrom. The pressure applied to the quartz substrate changes the dimensions of the cavity gap and a reflected signal from the reflective coating is processed as a pressure.

    摘要翻译: 提供高温压力传感器。 该传感器包括具有在一侧蚀刻的腔的石英衬底。 反射涂层沉积在空腔的至少一部分上。 传感器还包括耦合到石英基板的套圈部分,其间具有空腔。 空腔存在于真空中,并且在反射金属涂层和套圈的表面之间形成腔间隙。 传感器还包括由套圈部分包围并从套圈部分的相对端延伸的光纤,以及围绕套圈部分和石英衬底的金属壳体,所述金属壳体具有从其延伸的所述光纤的开口。 施加到石英衬底的压力改变了空腔间隙的尺寸,并且将来自反射涂层的反射信号作为压力进行处理。

    High temperature optical pressure sensor and method of fabrication of the same
    17.
    发明授权
    High temperature optical pressure sensor and method of fabrication of the same 有权
    高温光学压力传感器及其制造方法

    公开(公告)号:US07966887B2

    公开(公告)日:2011-06-28

    申请号:US12411878

    申请日:2009-03-26

    IPC分类号: G01L9/00

    CPC分类号: G01L9/0079 G01L9/0007

    摘要: A high-temperature pressure sensor is provided. The sensor includes a quartz substrate with a cavity etched on one side. A reflective coating is deposited on at least a portion of the cavity. The sensor further includes a ferrule section coupled to the quartz substrate with the cavity therebetween. The cavity exists in a vacuum, and cavity gap is formed between the reflective metal coating and a surface of the ferrule. The sensor also includes an optical fiber enclosed by the ferrule section and extending from the cavity gap to an opposing end of the ferrule section and a metal casing surrounding the ferrule section and the quartz substrate with an opening for said optical fiber extending therefrom. The pressure applied to the quartz substrate changes the dimensions of the cavity gap and a reflected signal from the reflective coating is processed as a pressure.

    摘要翻译: 提供高温压力传感器。 该传感器包括具有在一侧蚀刻的腔的石英衬底。 反射涂层沉积在空腔的至少一部分上。 传感器还包括耦合到石英基板的套圈部分,其间具有空腔。 空腔存在于真空中,并且在反射金属涂层和套圈的表面之间形成腔间隙。 传感器还包括由套圈部分包围并从套圈部分的相对端延伸的光纤,以及围绕套圈部分和石英衬底的金属壳体,所述金属壳体具有从其延伸的所述光纤的开口。 施加到石英衬底的压力改变了空腔间隙的尺寸,并且将来自反射涂层的反射信号作为压力进行处理。