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    INVERSE THERMAL ACOUSTIC IMAGING PART INSPECTION
    1.
    发明专利
    INVERSE THERMAL ACOUSTIC IMAGING PART INSPECTION 未知

    公开(公告)号：SG140580A1

    公开(公告)日：2008-03-28

    申请号：SG2007064132

    申请日：2007-08-31

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： STAROSELSKY ALEXANDER ,  MARTIN THOMAS J ,  SIDWELL CARROLL V ,  OUYANG ZHONG ,  SMITH KEVIN D

    Abstract: INVERSE THERMAL ACOUSTIC IMAGING PART INSPECTION A method of identifying a flaw in a part is provided that includes vibrating a part to induce heat. The heat originates in any flaws in the part. A thermal image is obtained using, for example, an infrared camera. A mathematical representation of the thermophysics, such as the heat conduction or thermal energy equations using the boundary element method or finite element method is used to identify a source and an intensity of the heat identified with the thermal image. Using the source and intensity of the heat, flaw characteristics for the part can be determined. The method is employed using an inspection system that includes a vibration device for vibrating the part. An imaging device, such as an infrared camera, measures temperature on the surface of the part. An assumption is made or additional measurements are taken to obtain values for surface flux or surface heat transfer coefficients. A processor communicates with the imaging device for receiving the surface temperature. The processor includes computer memory having part characteristics and mathematical equations. The processor uses the measured surface temperature, assumed or measured heat flux or heat transfer coefficients, part characteristics and mathematical equations to determine the flaw characteristics in the part.

    THERMAL IMAGING METHOD AND APPARATUS
    2.
    发明专利
    THERMAL IMAGING METHOD AND APPARATUS 未知

    公开(公告)号：CA2546524A1

    公开(公告)日：2006-11-24

    申请号：CA2546524

    申请日：2006-05-10

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： OUYANG ZHONG ,  SMITH KEVIN D

    IPC: G01N21/88 ,  F01D25/00 ,  F02C7/00

    Abstract: An inspection apparatus includes a light source positioned to direct light to a first surface of a workpiece. An infrared detector is positioned to receive radiation from the first surface. A data acquisition and processing computer is coupled to the light source and the infrared detector. The computer triggers the light source to emit the light a number of instances. The computer acquires thermal data from the infrared detector for a number of times after each of the instances. The computer is configured to process the data using a theoretical solution to analyze the thermal data based upon an average of the thermal data for a number of each of corresponding ones of the times from different ones of the instances.

    Thermal imaging method and apparatus
    3.
    发明专利
    Thermal imaging method and apparatus 未知

    公开(公告)号：SG127835A1

    公开(公告)日：2006-12-29

    申请号：SG200603317

    申请日：2006-05-18

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： OUYANG ZHONG ,  SMITH KEVIN D

    Abstract: An inspection apparatus includes a light source positioned to direct light to a first surface of a workpiece. An infrared detector is positioned to receive radiation from the first surface. A data acquisition and processing computer is coupled to the light source and the infrared detector. The computer triggers the light source to emit the light a number of instances. The computer acquires thermal data from the infrared detector for a number of times after each of the instances. The computer is configured to process the data using a theoretical solution to analyze the thermal data based upon an average of the thermal data for a number of each of corresponding ones of the times from different ones of the instances.

    FLASH THERMOGRAPHY DOUBLE WALL THICKNESS MEASUREMENT
    4.
    发明公开
    FLASH THERMOGRAPHY DOUBLE WALL THICKNESS MEASUREMENT 有权
    BLITZTHERMOGRAFIEMESSUNG MIT DOPPELTER WANDDICKE

    公开(公告)号：EP2962061A4

    公开(公告)日：2016-11-30

    申请号：EP14757641

    申请日：2014-02-27

    Applicant: UNITED TECHNOLOGIES CORP

    Inventor： OUYANG ZHONG ,  RAULERSON DAVID A ,  SMITH KEVIN D ,  PINERO HECTOR M ,  TARASKEVICH JAIMIE ,  BOYER JESSE R

    IPC: G01B11/06 ,  G01B21/08 ,  G01J5/00 ,  G01N25/00

    CPC classification number: G01B21/085 ,  G01J5/0088 ,  G01J5/0896 ,  G01J2005/0081 ,  G01N25/00

    Abstract: A method of determining the thickness of an internal wall in a gas turbine engine component includes the steps of utilizing flash thermography to measure a complete thickness of a component between an outer wall and at least one enlarged cooling channel at a location where an outer cooling channel is positioned between the outer wall and the at least one enlarged cooling channel and where at least one member spans the cooling channel, such that the thickness is through the member which spans the outer cooling channel. An outer thickness of the component is measured from the outer wall to an outer wall of the outer cooling channel. A thickness is determined from an inner wall of the outer cooling channel to the at least one enlarged cooling channel by subtracting the measured outer thickness from the complete thickness, and also subtracting a known thickness of the outer cooling channel.

    Abstract translation: 一种确定燃气涡轮发动机部件中的内壁厚度的方法包括以下步骤：利用闪蒸热成像测量在外壁与至少一个扩大的冷却通道之间的部件的完整厚度，其中外冷却通道 定位在外壁和至少一个扩大的冷却通道之间，并且其中至少一个构件跨越冷却通道，使得厚度穿过跨过外部冷却通道的构件。 从外壁到外部冷却通道的外壁测量部件的外部厚度。 通过从完全厚度减去所测量的外部厚度，并且还减去外部冷却通道的已知厚度，从外部冷却通道的内壁到至少一个扩大的冷却通道确定厚度。

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