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1. 发明授权

US5125514A Recognizing unwanted material in textile fibers 失效
标题翻译：在纺织纤维中识别不需要的材料
公开(公告)号：US5125514A
公开(公告)日：1992-06-30
申请号：US419709
申请日：1989-10-11
申请人： Oskar Oehler , Reinhard Oehler , Robert Demuth , Peter Anderegg
发明人： Oskar Oehler , Reinhard Oehler , Robert Demuth , Peter Anderegg
IPC分类号： G01V1/00 , B07C5/34 , D01B3/02 , D01G31/00 , G01N33/36 , G01V8/12
CPC分类号： D01G31/003 , B07C5/3416 , B07C5/366 , B07C5/368 , D01B3/025 , G01N33/362
摘要： The invention relates to a method of and apparatus for detecting unwanted material in the form of string or woven fabric in a flow of wanted fiber flocks or in a wanted fiber fleece. To this end, the flock flow is guided through a wave field which detects the presence of unwanted material in the flock flow so that the unwanted material can be separated out in a separator facility. The wave field can be an optical or acoustic wave field. The result obtained can, in addition to the separation of the unwanted material, be displayed in display means and/or recorded.
摘要翻译：本发明涉及一种用于在所需的纤维绒毛流中或以所需的纤维绒毛中检测呈弦或机织织物形式的不想要的材料的方法和装置。为此，蜂巢流被引导通过波场，该波场检测蜂群中不需要的物质的存在，使得不必要的物质可以在分离器设备中分离出来。波场可以是光或声波场。获得的结果除了不想要的材料的分离之外还可以显示在显示装置和/或记录中。

2. 发明授权

US4657397A Light collector and its use for spectroscopic purposes 失效
标题翻译：光收集器及其用于光谱目的
公开(公告)号：US4657397A
公开(公告)日：1987-04-14
申请号：US589087
申请日：1984-02-09
申请人： Oskar Oehler , David Sourlier , Alexis Fries
发明人： Oskar Oehler , David Sourlier , Alexis Fries
IPC分类号： G01N21/25 , G02B6/42 , G02B17/06 , G01N21/31
CPC分类号： G01N21/1702 , G01J1/04 , G01J1/0422 , G01J1/08 , G01N21/031 , G01N21/255 , G01N21/3504 , G02B19/0023 , G02B19/0047 , G02B6/4298
摘要： The device for collecting the radiation of a light source (20) within a concave mirror comprises a cylindrical or rotationally symmetrical parabolic or elliptical reflector (10'), which is covered with a curved or planar retroreflector (40) having an opening (42). The retroreflector (40) returns part of the light into the vicinity of the source (20) and brings about, due to the partial transparency of this area, that an intense, quasi-parallel light beam can be coupled out through opening (42). After passing through a monochromator element (31), this light can e.g. be supplied to a gas measuring cell (68). The optical efficiency of the device is increased by the concave mirror (57) in a shape supplementing reflector (10', 10"). The measuring signal can be determined by means of a light detector or a microphone (69). In the latter case, an acoustically decoupling gas exchange device is required, which can e.g. be realized by means of capillaries filled with the liquid (75, 75').
摘要翻译： PCT No.PCT / CH83 / 00080 Sec。 371日期1984年2月9日 102（e）日期1984年2月9日PCT提交1983年6月23日PCT公布。第WO84 / 00217号公报 1984年1月19日。用于收集凹面镜内的光源（20）的辐射的装置包括圆柱形或旋转对称的抛物面或椭圆形反射器（10'），其被弯曲或平面后向反射器（40 ）具有开口（42）。后向反射器（40）将光的一部分返回到源极（20）附近，并由于该区域的部分透明度而导致强烈的准平行光束可以通过开口（42）耦合出来，。在通过单色仪元件（31）之后，供应到气体测量池（68）。通过形状补充反射器（10'，10“）中的凹面镜（57）增加了器件的光学效率。测量信号可以通过光检测器或麦克风来确定（69）。在后一种情况下，需要一种声学去耦气体交换装置。通过填充有液体（75,75'）的毛细管实现。

3. 发明授权

US4740086A Apparatus for the photoacoustic detection of gases 失效
标题翻译：气体光声检测装置
公开(公告)号：US4740086A
公开(公告)日：1988-04-26
申请号：US796616
申请日：1985-10-07
申请人： Oskar Oehler , Klaus Mosbach , Martin Seifert , Heinrich Kunz , Niels Kuster
发明人： Oskar Oehler , Klaus Mosbach , Martin Seifert , Heinrich Kunz , Niels Kuster
IPC分类号： G01N21/17 , G01N21/00
CPC分类号： G01N21/1702 , G01N2021/1704
摘要： The apparatus for detecting gases comprises a photoacoustic gas detector 35, in which the intensity-modulated absorbed test light beam 32' is converted into noise and detected by means of microphone 36. The photoacoustic gas detector 35 is acoustically decoupled from the gas collecting point 54 by a gas-permeable diaphragm 52 or a rigid, porous material 52'. The gas chamber 35' of photoacoustic detector 35 can be scavenged by means of supply lines 38, 38' and valves 56, 56'. It is advantageous to use a thermal source 32 intensity-modulated by phase lag. The signal is processed at microphone 36 by means of a N-path filter comprising cyclic switch 63 and R-elements 62, 65, 65'. The apparatus can be used for detecting CO.sub.2 and CO.
摘要翻译： PCT No.PCT / CH85 / 00014 Sec。 371日期：1985年10月7日 102（e）1985年10月7日PCT PCT 1月30日，PCT PCT。出版物WO85 / 03574 1985年8月15日。用于检测气体的装置包括光声气体检测器35，其中强度调制的吸收的测试光束32'被转换成噪声并通过麦克风36检测。光声气体检测器35是声学通过透气隔膜52或刚性多孔材料52'与气体收集点54分离。光声检测器35的气室35'可以通过供应管线38,38'和阀56,56'清扫。使用通过相位滞后强度调制的热源32是有利的。信号通过包括循环开关63和R元件62,65,65'的N路径滤波器在麦克风36处理。该设备可用于检测CO2和CO。

4. 发明授权

US4557603A Detection means for the selective detection of gases, based on optical spectroscopy 失效
标题翻译：基于光谱法检测气体的检测手段
公开(公告)号：US4557603A
公开(公告)日：1985-12-10
申请号：US438897
申请日：1982-10-25
申请人： Oskar Oehler , Alexis Fries
发明人： Oskar Oehler , Alexis Fries
IPC分类号： G01N21/25 , G01N21/17 , G01N21/37 , G01N21/61
CPC分类号： G01N21/0303 , G01N21/1702 , G01N21/37
摘要： An optical detection system for selectively detecting gases comprises a light source emitting light thermally or mechanically modulated and supplied to a measuring cell. The light source includes an emitter enclosed in an ellipsoid reflector. The ellipsoid reflector can receive measuring gas directly, or is evacuated or filled with an inert gas which does not absorb in the measuring gas absorption range. With measuring gas supplied directly to the reflector, the light emanating from the reflector is supplied to a wide-band detector, combined with a monochromator, e.g. an optical narrow-band filter. With an evacuated or inert gas filled reflector, after traversing a monochromator, the light is irradiated into a photoacoustic detection cell containing the measuring gas. The photoacoustic cell is completely or approximately closed during measurement. Devices, providing the acoustic decoupling in the photoacoustic cell during the measurement and gas exchanges, can include capillaries in the cell wall, liquid cutout devices, mechanical valves or diaphragm pump-valve combinations. Microphone signals processed by a lock-in amplifier operating in a digital off-line manner and controlled by a microprocessor can control the system. The gas scavenging and signal processing of several gas detector units can take place with a single processor unit.
摘要翻译： PCT No.PCT / CH82 / 00026 Sec。 371日期1982年10月25日第 102（e）1982年10月25日日期PCT提交1982年2月23日PCT公布。出版物WO82 / 02950 日期：1982年9月2日。用于选择性地检测气体的光学检测系统包括发射热或机械调制的光并将其提供给测量池的光源。光源包括封装在椭圆反射器中的发射器。椭圆反射器可以直接接收测量气体，或者在测量气体吸收范围内不吸收的惰性气体进行抽空或填充。使用直接供应到反射器的测量气体，从反射器发出的光被提供给宽带检测器，与单色仪组合。光学窄带滤光片。在抽空或惰性气体填充的反射器中，在穿过单色仪之后，将光照射到含有测量气体的光声检测单元中。光电池在测量过程中完全或大致闭合。在测量和气体交换期间在光声单元中提供声学解耦的装置可以包括细胞壁中的毛细管，液体切除装置，机械瓣膜或隔膜泵 - 阀组合。由数字离线操作并由微处理器控制的锁定放大器处理的麦克风信号可以控制系统。几个气体检测器单元的气体清除和信号处理可以用单个处理器单元进行。

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