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公开(公告)号：US4013886A
公开(公告)日：1977-03-22
申请号：US550263
申请日：1975-02-18
申请人： August Schmid
发明人： August Schmid
CPC分类号： G01V8/12 , H03K17/941
摘要： The light beam projector and the directive light receiver of a light barr intrusion detector are mounted side by side on a common mounting body which is angularly adjustable in a fixed casing, so as to direct the projected light for maximum reflection to the receiver by a remote mirror. A light emitting diode is provided as a visible indicator on or near the casing or the mounting and responds to the photosensitive element of the receiver through an intermediate amplifier, so that its brightness enables the effectiveness of the directional adjustment to be easily observed.
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公开(公告)号：US4003658A
公开(公告)日：1977-01-18
申请号：US492093
申请日：1974-07-26
申请人： Dennis Kelsall
发明人： Dennis Kelsall
CPC分类号： G01J9/02 , G01J9/0215
摘要： A system is described for tracking the position of a light source by mounting two orthogonal triangular interferometric systems on a gimbaled platform. The interferometric systems each provide a carrier frequency signal depending upon their pointing angle with respect to the light source. These carrier signal frequencies provide the error signals for the X and Y axis drives of the platform.
摘要翻译： 描述了一种用于通过在平衡平台上安装两个正交三角形干涉测量系统来跟踪光源的位置的系统。 干涉仪系统各自根据它们相对于光源的指向角度提供载波频率信号。 这些载波信号频率为平台的X轴和Y轴驱动器提供误差信号。
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公开(公告)号：US4001579A
公开(公告)日：1977-01-04
申请号：US557028
申请日：1975-03-10
申请人： Jean-Pierre Lebet , Joel Ducommun
发明人： Jean-Pierre Lebet , Joel Ducommun
CPC分类号： A24C5/3412
摘要： Faults in a composite filter rod being supplied to a sectioning device are detected optically by traversing the rod with a beam of light supplied along a first fiber bundle and taken up and delivered to photo-detector by a second fiber bundle. The ends of the cylindrical fiber bundles are held in the configuration of narrow homothetic rectangles transverse to the direction of feed of the rod, the width of the first bundle being approximately double that of the second bundle. The photo-detector controls elimination of faulty tips after sectioning; additional pairs of fiber bundles can be used to control synchronization of cutting with feed of the rod, and the correct succession of filter elements in the rod.
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公开(公告)号：US3980567A
公开(公告)日：1976-09-14
申请号：US559615
申请日：1975-03-18
申请人： Fernando Benini
发明人： Fernando Benini
CPC分类号： A24C5/3412
摘要： A method and apparatus for inspecting the ends of cigarettes by use of a spaced pair of optical fiber probes illuminating the ends of a cigarette and receiving light therefrom, and electronic circuit means converting the reflected light into representative signals which when processed and compared to a threshold signal provides a reject signal when at least one end of a cigarette is unacceptable.
摘要翻译： 一种用于通过使用间隔开的一对光纤探针来照射香烟的端部并从其接收光线来检查香烟的端部的方法和装置，以及电子电路装置将反射的光转换成代表信号，当被处理并与门限比较时 当香烟的至少一端不可接受时，信号提供拒绝信号。
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45.发明授权Multiple operating alarm systems employing oil burner flame monitoring relays 失效采用燃油燃烧器火焰监测继电器的多操作报警系统
公开(公告)号：US3964044A
公开(公告)日：1976-06-15
申请号：US527953
申请日：1974-11-29
申请人： Anthony R. Busco
发明人： Anthony R. Busco
摘要： An alarm system uses a series string of sensors including burglar, fire and cold detectors in series with a relay coil. The coil when activated, assures that all sensors are indicating a no fault condition and a contact associated with the coil, energizes a source of light to illuminate a photo detector. Upon an intrusion, the coil is energized causing an alarm to activate, which alarm may cause another alarm to continue warning of a fault in spite of a predetermined reset condition, which may undesirably occur.Other embodiments show a technique of monitoring a plurality of secured locations to determine the exact one experiencing a fault.
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公开(公告)号：US3947833A
公开(公告)日：1976-03-30
申请号：US526570
申请日：1974-11-20
CPC分类号： G06K9/3241 , G06K9/78 , G06T7/00
摘要： An automatic target detector for determining the probability that an objectn water is a swimmer. An electro-optical sensor is provided for viewing a target in water and contrast and width of the target are measured to assign probabilities that a target is a swimmer. A target which shows acceptable contrast and width is encoded and the encoded information is compared with stored reference scenes to make a final determination of whether or not a target is a swimmer.
摘要翻译： 一种用于确定水中的物体是游泳者的概率的自动目标检测器。 提供用于观察水中的目标的电光传感器，并且对比度和目标的宽度被测量以分配目标是游泳者的概率。 编码显示可接受的对比度和宽度的目标，并将编码信息与存储的参考场景进行比较，以最终确定目标是否是游泳者。
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公开(公告)号：US3932746A
公开(公告)日：1976-01-13
申请号：US458117
申请日：1974-04-05
申请人： Robert E. Swanson
发明人： Robert E. Swanson
CPC分类号： G04F10/04
摘要： This highly portable, self-contained timing system includes photoelectronic start-stop gates which employ a pulsed invisible light beam as a means for communicating a condition of elapsed time and for aligning each gate.
摘要翻译： 这种高度便携的，独立的定时系统包括光电启动停止门，其采用脉冲不可见光束作为用于传达经过时间的条件并用于对准每个门的装置。
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公开(公告)号：US3925666A
公开(公告)日：1975-12-09
申请号：US49245874
申请日：1974-07-29
申请人： CA ATOMIC ENERGY LTD
发明人： ALLAN COLIN J , BAYLY JOHN G
CPC分类号： G01N33/0027 , F17C13/12 , G01M3/38 , G01N21/39 , G01N33/0044 , Y02E60/321 , Y02P90/45
摘要： The gas detection system provides for the effective detection of gas leaks over a large area. It includes a laser which has a laser line corresponding to an absorption line of the gas to be detected. In the instant case, a He-Xe laser scans a number of retroreflectors which are strategically located around a D2O plant to detect H2S leaks. The reflected beam is focussed by a telescope, filtered, and passed into an infra-red detector. The laser may be made to emit two frequencies, one of which corresponds with an H2S absorption line; or it may be modulated on and off the H2S absorption line. The relative amplitude of the absorbed light will be a measure of the H2S present.
摘要翻译： 气体检测系统可以有效检测大面积的气体泄漏。 它包括具有对应于待检测气体的吸收线的激光线的激光。 在这种情况下，He-Xe激光扫描大量位于D2O工厂周围的后向反射器，以检测H2S泄漏。 反射光束被望远镜聚焦，过滤，并被传入红外探测器。 可以使激光器发射两个频率，其中一个频率对应于H2S吸收线; 或者可以在H2S吸收线上进行调制。 吸收的光的相对幅度将是H2S存在的量度。
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公开(公告)号：US3914309A
公开(公告)日：1975-10-21
申请号：US42807273
申请日：1973-12-26
申请人： SWENSEN EUGENE T
发明人： SWENSEN EUGENE T
CPC分类号： G06K7/10841 , G01V8/20 , H01L31/12
摘要： A radiation sensing device including a radiation source and a detector disposed in-line within a package.
摘要翻译： 一种辐射感测装置，包括辐射源和在包装内成对排列的检测器。
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50.发明授权Method and device for detecting the velocity of droplets formed from a liquid stream 失效用于检测从液体流形成的液滴的速度的方法和装置
公开(公告)号：US3907429A
公开(公告)日：1975-09-23
申请号：US49569674
申请日：1974-08-08
申请人： IBM
摘要： Droplets from a liquid stream are directed between a pair of apertures and a light source, which is strobed at a selected frequency and directed toward the apertures. In one embodiment, the apertures are spaced less than a wavelength of the droplets apart and the light source is strobed at a frequency other than the frequency of the droplets. The time between when a first of the apertures is blocked by a droplet in the stream as indicated by the light being broken during a strobe and the time when a second of the apertures is blocked by another droplet when the light source is strobed is counted. This period of time will give the velocity of the droplets, and correction of the velocity is made, if the velocity of the droplets is not at the desired velocity, by changing the pressure, for example, of the manifold supplying the liquid stream until the desired velocity is obtained. In another embodiment, the apertures are spaced from each other a wavelength or an integral of the wavelength of the droplets, and the light source is strobed at the same frequency as the frequency at which the droplets are generated. The strobing frequency has its phase changed relative to the frequency of drop generation and the pressure of the stream changed until both of the apertures are blocked simultaneously. Any deviation from this indicates that the velocity of the droplets has changed and correction must be made.
摘要翻译： 来自液体流的液滴被引导在一对孔和光源之间，该光源以选定的频率被选通并指向孔。 在一个实施例中，孔径间隔小于液滴的波长，并且光源以不同于液滴的频率的频率被选通。 在第一个孔之间的时间之间被流中的液滴阻挡，如在选通期间被断开的光所示，并且当光源被选通时，第二个孔被另一个液滴阻挡的时间被计数。 这个时间段将给出液滴的速度，如果液滴的速度不是所需的速度，则通过改变供应液体流的歧管的压力直到 获得所需的速度。 在另一个实施例中，孔彼此间隔开波长或液滴的波长的整体，并且以与产生液滴的频率相同的频率选通光源。 选通频率相对于液滴产生的频率具有相位变化，并且流的压力改变，直到两个孔同时被阻挡。 与此有任何偏差，表示液滴的速度发生变化，必须进行校正。
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