NON-CONTACT PRESSURE SENSING USING LASER-INDUCED DIELECTRIC BREAKDOWN
    1.
    发明申请
    NON-CONTACT PRESSURE SENSING USING LASER-INDUCED DIELECTRIC BREAKDOWN 失效
    使用激光诱导电介质断开的非接触式压力传感

    公开(公告)号:US20120166104A1

    公开(公告)日:2012-06-28

    申请号:US12781262

    申请日:2010-05-17

    CPC classification number: G01L11/02

    Abstract: A technique for measuring pressure of a material directs one or more laser beams at the material (e.g., a pressurized fluid) to create a distribution of electromagnetic field intensity which varies over an intensity range and induces dielectric breakdown in the material. An emission pattern of broadband light from the dielectric breakdown is detected, and a value of a characteristic of the emission pattern (e.g., location of a threshold intensity or of a peak intensity) is processed (e.g., by a computer or similar electronic processor) to generate a pressure measurement signal representing a pressure of the material. Processing typically employs a pre-established calibration function which associates a set of stored values of the characteristic with corresponding known pressures of the material, obtained for example by preceding similar measurements of the same material under conditions of known pressures.

    Abstract translation: 用于测量材料压力的技术将材料(例如,加压流体)上的一个或多个激光束引导以产生在强度范围内变化的电磁场强度的分布并且诱导材料中的电介质击穿。 检测来自电介质击穿的宽带光的发射图案,并且处理发射图案的特性值(例如,阈值强度或峰值强度的位置)(例如,通过计算机或类似的电子处理器) 以产生表示材料的压力的压力测量信号。 处理通常使用预先建立的校准功能,其将特征的一组存储值与材料的相应已知压力相关联,例如通过在已知压力的条件下通过相同材料的先前相似测量而获得。

    Non-contact pressure sensing using laser-induced dielectric breakdown
    2.
    发明授权
    Non-contact pressure sensing using laser-induced dielectric breakdown 失效
    使用激光诱导电介质击穿的非接触式压力感测

    公开(公告)号:US08240215B2

    公开(公告)日:2012-08-14

    申请号:US12781262

    申请日:2010-05-17

    CPC classification number: G01L11/02

    Abstract: A technique for measuring pressure of a material directs one or more laser beams at the material (e.g., a pressurized fluid) to create a distribution of electromagnetic field intensity which varies over an intensity range and induces dielectric breakdown in the material. An emission pattern of broadband light from the dielectric breakdown is detected, and a value of a characteristic of the emission pattern (e.g., location of a threshold intensity or of a peak intensity) is processed (e.g., by a computer or similar electronic processor) to generate a pressure measurement signal representing a pressure of the material. Processing typically employs a pre-established calibration function which associates a set of stored values of the characteristic with corresponding known pressures of the material, obtained for example by preceding similar measurements of the same material under conditions of known pressures.

    Abstract translation: 用于测量材料压力的技术将材料(例如,加压流体)上的一个或多个激光束引导以产生在强度范围内变化的电磁场强度的分布并且诱导材料中的电介质击穿。 检测来自电介质击穿的宽带光的发射图案,并且处理发射图案的特性值(例如,阈值强度或峰值强度的位置)(例如,通过计算机或类似的电子处理器) 以产生表示材料的压力的压力测量信号。 处理通常使用预先建立的校准功能,其将特征的一组存储值与材料的相应已知压力相关联,例如通过在已知压力的条件下通过相同材料的先前相似测量而获得。

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