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1. 发明授权

US07052737B2 Forming a monitoring deposit on a substrate 有权
标题翻译：在基材上形成监测沉积物
公开(公告)号：US07052737B2
公开(公告)日：2006-05-30
申请号：US10294727
申请日：2002-11-15
申请人： Lawrence B. Kool , James A. Ruud , John W. Devitt
发明人： Lawrence B. Kool , James A. Ruud , John W. Devitt
IPC分类号： B05D5/00
CPC分类号： G01K11/06
摘要： A method for forming a monitoring deposit on a substrate comprises determining a temperature range to subject the substrate to provide a high temperature of operation up to less than a critical substrate deterioration temperature; selecting a binder to monitor temperature by emitting an indicator within the determined temperature range; combining the indicator and the binder; and applying the combined indicator and binder to the substrate to form the monitoring deposit. An article comprises a substrate; and a combined indicator and binder applied into the substrate, wherein the binder emits the indicator within a temperature range determined to subject the substrate to high temperature operation up to less than a critical substrate deterioration temperature. Also, a method of monitoring a gas turbine system comprise selecting a binder to monitor temperature by emitting an indicator within a temperature range determined to permit subjecting a substrate in the system to high temperature operation up to less than a critical turbine substrate deterioration temperature; combining the indicator and the binder; and applying the combined indicator and binder to the substrate to form the monitoring deposit. A system for monitoring a gas turbine engine comprises a substrate; and a combined indicator and binder applied onto the substrate, wherein the binder emits the indicator within a temperature range determined to permit subjecting the substrate to high temperature operation up to less than a critical substrate deterioration temperature.
摘要翻译：用于在衬底上形成监测沉积物的方法包括确定使衬底经受高温操作的温度范围，直到低于临界衬底退化温度; 选择粘合剂以通过在所确定的温度范围内发射指示剂来监测温度; 结合指标和粘合剂; 并将组合的指示剂和粘合剂施加到基底上以形成监测沉积物。一种制品包括基材; 以及施加到基底中的组合的指示剂和粘合剂，其中粘合剂在确定的温度范围内发射指示剂，以使基底经受高于临界的基底劣化温度的高温操作。此外，监测燃气涡轮机系统的方法包括选择粘合剂以通过在确定的温度范围内发射指示器来监测温度，以允许系统中的基板经受高达临界涡轮机底板劣化温度的高温操作; 结合指标和粘合剂; 并将组合的指示剂和粘合剂施加到基底上以形成监测沉积物。一种用于监测燃气涡轮发动机的系统，包括：基板; 以及施加到基底上的组合指示剂和粘合剂，其中粘合剂在确定的温度范围内发射指示剂，以允许基底经受高于临界基底退化温度的高温操作。

2. 发明授权

US5111048A Apparatus and method for detecting fatigue cracks using infrared thermography 失效
标题翻译：使用红外热像仪检测疲劳裂纹的装置和方法
公开(公告)号：US5111048A
公开(公告)日：1992-05-05
申请号：US588909
申请日：1990-09-27
申请人： John W. Devitt , Thomas E. Bantel , Joseph M. Sparks , Janet S. Kania
发明人： John W. Devitt , Thomas E. Bantel , Joseph M. Sparks , Janet S. Kania
IPC分类号： G01N25/72
CPC分类号： G01N25/72
摘要： A method and apparatus for detecting a defect in a workpiece are disclosed. The workpiece is positioned with a surface of the workpiece to be inspected in an optical path of an infrared radiation detector. A selected portion of the workpiece is heated by scanning with electromagnetic radiation for a selected duration to cause an increase in radiance from any defect present in the selected portion. Any defects, present in the workpiece selected portion, which may cause a failure of the workpiece, may be detected and distinguished from minor surface anomalies by analyzing a transient response of the irradiance received by the infrared radiation detector.
摘要翻译：公开了一种用于检测工件中的缺陷的方法和装置。工件被定位成在红外辐射检测器的光路中被检查的工件的表面。通过用电磁辐射扫描所选择的持续时间来加热所选择的工件部分，以引起所选部分中存在的任何缺陷的辐射度的增加。通过分析由红外线辐射检测器接收到的辐照度的瞬态响应，可以检测存在于工件选择部分中的可能导致工件故障的任何缺陷，并将其与次表面异常区分开。

3. 发明授权

US07351977B2 Methods and systems for distinguishing multiple wavelengths of radiation and increasing detected signals in a detection system using micro-optic structures 有权
标题翻译：用于区分多个辐射波长的方法和系统，并使用微光学结构在检测系统中增加检测信号
公开(公告)号：US07351977B2
公开(公告)日：2008-04-01
申请号：US10702702
申请日：2003-11-06
申请人： John W. Devitt , Mark E. Greiner , Jeffrey J. Voelker , David R. Wade , Michael J. Garter
发明人： John W. Devitt , Mark E. Greiner , Jeffrey J. Voelker , David R. Wade , Michael J. Garter
IPC分类号： G01J5/02
CPC分类号： G02B27/1013 , G01J3/0259 , G01J3/2803 , G01J3/2823 , G01J3/36 , G01J5/602 , G02B27/1086 , G02B27/126
摘要： Methods and systems for detection of. One method includes receiving light of a predetermined wavelength range from a source, and splitting the received light into multiple components having differing wavelengths. The method further includes directing the components toward individual locations spaced from one another. In addition, this illustrative method includes detecting at least some of the components at the locations. One illustrative system includes a plurality of detectors provided along an image facing plane of an array, wherein each detector has a width less than or equal to that of its conesponding pixel location, wherein at least two detectors are located within a single pixel location, wherein the size of each pixel location is approximately equal to the blur spot or smallest visible spot for the focal plane array, and a plurality of light pipe regions, wherein at least two light pipe regions are located within a single pixel location.
摘要翻译：用于检测辐射的方法和系统。一种方法包括从源接收预定波长范围的光，并将接收的光分成具有不同波长的多个分量。该方法还包括将组件引导到彼此间隔开的各个位置。此外，该说明性方法包括检测位置处的至少一些部件。一个说明性系统包括沿着阵列的面向图像平面的多个检测器，其中每个检测器具有小于或等于其相应像素位置的宽度的宽度，其中至少两个检测器位于单个像素位置内，其中每个像素位置的大小近似等于焦平面阵列的模糊点或最小可见光点，以及多个光管区域，其中至少两个光管区域位于单个像素位置内。

4. 发明授权

US5484263A Non-degrading reflective coating system for high temperature heat shields and a method therefor 失效
标题翻译：用于高温隔热罩的非降解反射涂层系统及其方法
公开(公告)号：US5484263A
公开(公告)日：1996-01-16
申请号：US324303
申请日：1994-10-17
申请人： Bangalore A. Nagaraj , Antoinette E. Weil , John W. Devitt
发明人： Bangalore A. Nagaraj , Antoinette E. Weil , John W. Devitt
IPC分类号： C23C4/02 , C23C28/00 , F01D5/28 , B32B15/04 , F01D9/02
CPC分类号： C23C28/321 , C23C28/322 , C23C28/345 , C23C28/3455 , C23C4/02 , F01D5/288 , F05D2240/12 , F05D2300/121 , F05D2300/14 , F05D2300/2112
摘要： A heat shield which is adapted to be formed on an article which must operate in an environment in which the article is subject to thermal radiation while at an elevated service temperature. The heat shield is composed of a barrier layer formed or deposited on the surface of the article, and a reflective layer on the barrier layer. The reflective layer serves to reflect a majority of the thermal radiation which is incident on the article. The barrier layer serves to substantially prevent degradation of the reflective layer at the elevated service temperature, so as to prevent the reflectivity of the reflective layer from being degraded while the article is in service. The reflective layer is preferably a noble metal, a noble metal alloy or aluminum, while the barrier layer is preferably a nitride, aluminum oxide, yttria-stabilized zirconia, or an oxide which can be grown by oxidation of the article's surface.
摘要翻译：一种热屏蔽件，其适于形成在物品上，该物品必须在物品在升高的使用温度下经受热辐射的环境中操作。隔热罩由形成或沉积在物品表面上的阻挡层和阻挡层上的反射层构成。反射层用于反射入射在物品上的大部分热辐射。阻挡层用于基本上防止在升高的使用温度下的反射层的劣化，从而防止在制品使用时反射层的反射率降低。反射层优选为贵金属，贵金属合金或铝，而阻挡层优选为氮化物，氧化铝，氧化钇稳定的氧化锆或可通过制品的表面氧化生长的氧化物。

5. 发明授权

US5374122A Method for quantifying porosity of parts of simple and complex geometries 失效
标题翻译：用于量化简单和复杂几何部分孔隙度的方法
公开(公告)号：US5374122A
公开(公告)日：1994-12-20
申请号：US10953
申请日：1993-01-29
申请人： John W. Devitt , Eric A. Anderson
发明人： John W. Devitt , Eric A. Anderson
IPC分类号： G01N15/08 , G01N25/72 , G01N25/00
CPC分类号： G01N15/088 , G01N25/72
摘要： A method and apparatus for inspecting nonmetallic parts, including composite parts for, e.g. aircraft engines by quantifying their porosity, wherein a laser beam is directed to one side of the part to heat a portion thereof, with a delay being noted for the applied heat to transmit through said part to the opposite side thereof. An infrared radiometer (IR) is mounted to view such opposite side and to read (after such delay) the heat transmitted therethrough in the form of voltage (increase) readings. Such IR readings are taken at points across the part being inspected and the readings are then compared to a known data base of temperature change against vol. % porosity or the resulting calibrated porosity curve, to quantify the % porosity at various points on the sample. The inventive method can read or quantify porosity parts of simple geometry as well as of complex geometry, including engine housing flanges of small radii of curvature.
摘要翻译：一种用于检查非金属部件的方法和装置，包括例如复合部件。飞机发动机通过量化它们的孔隙率，其中激光束被引导到部件的一侧以加热其一部分，注意到所施加的热量通过所述部件传输到其相对侧的延迟。安装红外辐射计（IR）以观察这样的相对侧并以（电压（增加））读数的形式读取（在这样的延迟之后）透过的热量。这些IR读数是在被检查部分的点进行的，然后将读数与已知的温度变化数据库进行比较。％孔隙率或所得到的校准孔隙度曲线，以量化样品上各个点处的孔隙率。本发明的方法可以读取或量化简单几何形状以及复杂几何形状的孔隙率部分，包括具有小曲率半径的发动机壳体凸缘。

6. 发明授权

US5545437A Method for forming a non-degrading refective coating system for high temperature heat shields 失效
标题翻译：用于形成用于高温隔热罩的非降解反射涂层系统的方法
公开(公告)号：US5545437A
公开(公告)日：1996-08-13
申请号：US493950
申请日：1995-06-23
申请人： Bangalore A. Nagaraj , Antoinette E. Weil , John W. Devitt
发明人： Bangalore A. Nagaraj , Antoinette E. Weil , John W. Devitt
IPC分类号： C23C4/02 , C23C28/00 , F01D5/28 , B05D1/36 , B05D7/00
CPC分类号： C23C28/321 , C23C28/322 , C23C28/345 , C23C28/3455 , C23C4/02 , F01D5/288 , F05D2240/12 , F05D2300/121 , F05D2300/14 , F05D2300/2112
摘要： A heat shield which is adapted to be formed on an article which must operate in an environment in which the article is subject to thermal radiation while at an elevated service temperature. The heat shield is composed of a barrier layer formed or deposited on the surface of the article, and a reflective layer on the barrier layer. The reflective layer serves to reflect a majority of the thermal radiation which is incident on the article. The barrier layer serves to substantially prevent degradation of the reflective layer at the elevated service temperature, so as to prevent the reflectivity of the reflective layer from being degraded while the article is in service. The reflective layer is preferably a noble metal, a noble metal alloy or aluminum, while the barrier layer is preferably a nitride, aluminum oxide, yttria-stabilized zirconia, or an oxide which can be grown by oxidation of the article's surface.
摘要翻译：一种热屏蔽件，其适于形成在物品上，该物品必须在物品在升高的使用温度下经受热辐射的环境中操作。隔热罩由形成或沉积在物品表面上的阻挡层和阻挡层上的反射层构成。反射层用于反射入射在物品上的大部分热辐射。阻挡层用于基本上防止在升高的使用温度下的反射层的劣化，从而防止在制品使用时反射层的反射率降低。反射层优选为贵金属，贵金属合金或铝，而阻挡层优选为氮化物，氧化铝，氧化钇稳定的氧化锆或可通过制品的表面氧化生长的氧化物。

7. 发明授权

US07095026B2 Methods and apparatuses for selectively limiting undesired radiation 有权
标题翻译：用于选择性地限制不需要的辐射的方法和装置
公开(公告)号：US07095026B2
公开(公告)日：2006-08-22
申请号：US10703136
申请日：2003-11-06
申请人： John W. Devitt , Mark E. Greiner , Jeffrey J. Voelker , David R. Wade
发明人： John W. Devitt , Mark E. Greiner , Jeffrey J. Voelker , David R. Wade
IPC分类号： G01J5/00
CPC分类号： G01J5/06 , G01J1/04 , G01J1/0407 , G01J1/0414 , G01J1/0418 , G01J1/0488 , G01J1/42 , G01J2001/0276 , G02F1/0126 , G02F2203/11 , G02F2203/52
摘要： An apparatus for selectively limiting undesired radiation from a scene which, in one embodiment, includes an optic that is operative to attenuate radiation by selectively losing transparency in response to radiation within a first wavelength band from a source. The loss of transparency affects the passage through the optic of radiation within a second wavelength band from that source. The optic can be positioned between a sensor and the scene such that the sensor is configured to receive radiation from the scene through the optic. In one embodiment, an optical limiter includes a plurality of such optics, wherein the optical limiter is configured to facilitate transmission of light corresponding to a scene, and wherein each optic is configured to receive a respective portion of the light corresponding to a respective portion of the scene. A light detector assembly and a method of limiting light energy are also included.
摘要翻译：一种用于选择性地限制来自场景的不需要的辐射的装置，在一个实施例中，该光学器件包括可操作地通过响应于来自源的第一波长带内的辐射选择性地损失透明度来衰减辐射的光学器件。透明度的损失影响到来自该源的第二波长带内的辐射光通过。光学元件可以位于传感器和场景之间，使得传感器被配置成通过光学器件从场景接收辐射。在一个实施例中，光学限制器包括多个这样的光学器件，其中所述光学限制器被配置为促进对应于场景的光的透射，并且其中每个光学器件被配置为接收对应于相应部分的光的相应部分现场。还包括光检测器组件和限制光能的方法。

8. 发明授权

US5703362A Method for nondestructive/noncontact detection and quantification of alpha case on a surface of a workpiece made of titanium or a titanium-based alloy 失效
标题翻译：在钛或钛基合金制成的工件表面上的非破坏性/非接触检测和α壳的定量方法
公开(公告)号：US5703362A
公开(公告)日：1997-12-30
申请号：US581812
申请日：1996-01-02
申请人： John W. Devitt , Thomas R. Edwards , Thomas E. Bantel
发明人： John W. Devitt , Thomas R. Edwards , Thomas E. Bantel
IPC分类号： G01N21/35 , G01N21/01 , G01N21/71
CPC分类号： G01N21/3563
摘要： A method for nondestructive/noncontact detection of alpha case on a surface of a workpiece made of titanium or a titanium-based alloy. Infrared radiation is reflected off of a selected portion of the workpiece surface and sensed by a detector which may comprise a scanning infrared radiometer, an infrared camera, or a spot radiometer. The presence of any alpha case in the selected portion of the workpiece surface is detected by comparing the intensity of the reflected infrared radiation to a predetermined intensity known to be indicative of the absence of alpha case. An image of the reflected infrared radiation may be created and the step of detecting the presence of alpha case may include the step of comparing the intensity of the reflected infrared radiation within the image to the predetermined intensity. According to a preferred embodiment, a target may be disposed between the source of the infrared radiation and the workpiece surface so as to create a predetermined pattern within the image. In this embodiment, the step of detecting may further include the step of comparing the clarity of the predetermined pattern with the image created from the reflected infrared radiation from the selected portion of the workpiece surface to the clarity of the predetermined pattern within an inspection standard image known to be indicative of the absence of alpha case.
摘要翻译：由钛或钛基合金制成的工件表面上的α壳的非破坏性/非接触检测方法。红外辐射从工件表面的选定部分反射，并由可能包括扫描红外辐射计，红外相机或点辐射计的检测器感测。通过将反射的红外辐射的强度与已知表示不存在α情况的预定强度进行比较来检测工件表面的所选部分中的任何α壳的存在。可以产生反射的红外辐射的图像，并且检测α情况的存在的步骤可以包括将图像内反射的红外辐射的强度与预定的强度进行比较的步骤。根据优选实施例，目标可以设置在红外辐射源和工件表面之间，以便在图像内产生预定图案。在该实施例中，检测步骤可进一步包括将预定图案的清晰度与从工件表面的所选部分反射的红外辐射产生的图像与检查标准图像内的预定图案的清晰度进行比较的步骤已知表示没有α病例。

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