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1.发明授权
公开(公告)号：US5311126A
公开(公告)日：1994-05-10
申请号：US943622
申请日：1992-09-11
申请人： John Mittleman , Robert DeNale , Lawrence M. Brown
发明人： John Mittleman , Robert DeNale , Lawrence M. Brown
IPC分类号： G01N27/84 , G01R33/028 , G01R35/00 , G01R33/02
CPC分类号： G01R33/028 , G01N27/84
摘要： Field strength of an electromagnet is monitored at a threshold with a coupling coil positioned to monitor magnetic flux in a leg of an electromagnet. In the context of magnetic particle inspection for surface flaws (e.g. cracks) in ferromagnetic materials, sensing magnetic flux in a portion of a magnetic circuit including the material being inspected provides a continuous direct indication of whether or not the magnetic field strength produced is sufficient for reliable inspection to be performed. Since the magnetic flux in the electromagnet will be reduced with increases in reluctance of the magnetic circuit, the continuous monitoring of magnetic field strength also effectively monitors correct inspection technique by the magnetic particle inspection methodology.
摘要翻译： 电磁铁的场强在阈值处被监视，其中耦合线圈被定位成监测电磁体的腿中的磁通量。 在铁磁材料中的表面缺陷（例如裂纹）的磁粉检查的上下文中，在包括被检查的材料的磁路的一部分中感测磁通量提供连续直接指示所产生的磁场强度是否足以 进行可靠的检查。 由于随着磁路磁阻的增大，电磁体中的磁通量将减小，所以连续监测磁场强度也可以通过磁粉检测方法有效地监测正确的检测技术。
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公开(公告)号：US4191461A
公开(公告)日：1980-03-04
申请号：US39990
申请日：1979-05-16
摘要： A portable camera jig for use by divers in making close-up, stereoscopic tographs of underwater surfaces with a single lens camera includes, in combination with a sheet metal frame, a clear water box for operation in turbid water and that will permit illumination and operator viewing of the surface to be photographed, a camera support and parallogram linkage for moving the camera laterally between successive exposures, a light source mounted on a mast, and handles by which an individual diver can position the jig and shift the camera.
摘要翻译： 潜水员使用便携式相机夹具，用单眼镜头相机拍摄水下表面的特写立体照片，包括与钣金框架组合的透明水箱，用于在浑浊的水中操作，并允许照明和操作者 观察要拍摄的表面，用于在连续曝光之间横向移动照相机的照相机支架和平行连杆机构，安装在桅杆上的光源以及单个潜水员可以通过该手柄定位夹具并移动相机。
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公开(公告)号：US06854412B1
公开(公告)日：2005-02-15
申请号：US10161992
申请日：2002-05-31
申请人： Billy Courson , John Shelburne , John Mittleman
发明人： Billy Courson , John Shelburne , John Mittleman
摘要： A suction device includes a suction cell formed to include a cup having an open end and a stem extending from a side of the cup opposite from the open end. A control system is connected to the stem and arranged to form a partial vacuum in the cup such that the cup is attached to the substrate. The control system may include an actuator and a strain sensor connected to the stem. The actuator preferably includes a length of a material that includes a shape memory alloy.
摘要翻译： 抽吸装置包括形成为包括具有开口端的杯和从杯的与开口端相对的侧面延伸的杆的抽吸单元。 控制系统连接到杆并且布置成在杯中形成部分真空，使得杯连接到基底。 控制系统可以包括连接到杆的致动器和应变传感器。 致动器优选地包括包括形状记忆合金的材料的长度。
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公开(公告)号：US4388593A
公开(公告)日：1983-06-14
申请号：US206424
申请日：1980-11-13
申请人： John Mittleman
发明人： John Mittleman
CPC分类号： G01N27/9033 , G01N27/902
摘要： A coil device for use by divers in subjecting an elongate underwater strure member to a magnetic field for inspection purposes includes a framework supporting a winding having first and second coaxial coils of predetermined coil diameter that lie in substantially parallel planes separated axially by a distance at least twice the coil diameter, the coils being electrically connected in series so as to generate magnetic fields of opposite polarity. The coils, connecting conductors, and framework are adapted to be spread open and closed around the member to be inspected.
摘要翻译： 用于潜水员使细长水下结构构件进入磁场以用于检查目的的线圈装置包括支撑具有预定线圈直径的第一和第二同轴线圈的绕组的框架，该绕组具有基本上平行的平面，所述平面轴线至少间隔一段距离 线圈直径的两倍，线圈串联电连接，以产生相反极性的磁场。 线圈，连接导体和框架适于围绕待检查的构件展开和闭合。
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公开(公告)号：US4385522A
公开(公告)日：1983-05-31
申请号：US306111
申请日：1981-09-28
申请人： John Mittleman
发明人： John Mittleman
CPC分类号： G01B17/00
摘要： A pit depth gauge for use as an accessory to an underwater ultrasonic probeomprises two resiliently biased, freely flooded telescoping members a first of which has a first end wall adapted to ride on a surface to be inspected and a second of which has a second end wall adapted to be connected to the probe with the probe transducer in registration with an acoustic energy port. A stylus is fixed to the second member for axial movement with the transducer toward the first end wall as the stylus enters a pit, whereby the length of an acoustic water path is related to the pit depth.
摘要翻译： 用作水下超声波探头的附件的凹坑深度计包括两个弹性偏置的自由淹没的伸缩构件，第一个伸缩构件具有适于骑在要检查的表面上的第一端壁，其中第二端具有第二端 墙壁适于与探头连接，探头传感器与声能端口对准。 当手写笔进入凹坑时，触针固定到第二构件以便随着换能器朝向第一端壁的轴向移动，由此声水路径的长度与凹坑深度相关。
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公开(公告)号：US4207450A
公开(公告)日：1980-06-10
申请号：US915496
申请日：1978-06-14
申请人： John Mittleman
发明人： John Mittleman
CPC分类号： G01N33/1833 , G01N21/3577 , Y10T436/21
摘要： Apparatus for continuously monitoring the concentration of oil in a streamf water meters carbon tetrachloride through a first infrared analyzer to generate a reference signal, mixes the carbon tetrachloride with a sample stream of oily water to extract the oil, then separates and passes the oil containing carbon tetrachloride through a second infrared analyzer that is zeroed by the reference signal. The sample water stream is returned to the main flow and the carbon tetrachloride is reclaimed and recycled.
摘要翻译： 用于通过第一红外分析仪连续监测四氯化碳水流中的油浓度以产生参考信号的装置，将四氯化碳与油水的样品流混合以提取油，然后分离并通过含有 通过由参考信号归零的第二红外分析仪进行四氯化碳。 样品水流返回主流，四氯化碳回收再循环。
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公开(公告)号：US4133204A
公开(公告)日：1979-01-09
申请号：US906180
申请日：1978-05-15
申请人： John Mittleman
发明人： John Mittleman
CPC分类号： G01B7/34
摘要： A roughness measuring tool wherein a pair of discs are mounted in spaced allel relation for rotation by a motor about a common axis with a face of only one of the discs being exposed to a layer of fluid contacting a surface to be tested. A torsionally resilient coupling beteen the discs permits rotational displacement due to a difference in hydrodynamic drag thereon. The displacement is sensed as a phase difference between signals generated by rotation of the discs and a phase signal is applied to a function generator the output of which is displayed as a figure of merit of test surface condition.
摘要翻译： 一种粗糙度测量工具，其中一对圆盘以间隔开的平行关系安装，由马达围绕公共轴线旋转，只有一个圆盘的表面暴露于接触待测试表面的一层流体。 圆盘之间的扭转弹性联轴器由于其上的流体动力学阻力的差异而允许旋转位移。 将位移检测为通过盘的旋转产生的信号之间的相位差，并且将相位信号施加到函数发生器，其输出显示为测试表面条件的品质因数。
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