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公开(公告)号：US4264814A
公开(公告)日：1981-04-28
申请号：US62372
申请日：1979-07-31
CPC分类号： G01N33/0011 , G01N21/3504
摘要： A technique for considerably improving the sensitivity and specificity of infrared spectrometry as applied to quantitative determination of trace impurities in various carrier or solvent gases is presented. A gas to be examined for impurities is liquefied and infrared absorption spectra of the liquid are obtained. Spectral simplification and number densities of impurities in the optical path are substantially higher than are obtainable in similar gas-phase analyses. Carbon dioxide impurity (.about.2 ppm) present in commercial Xe and ppm levels of Freon 12 and vinyl chloride added to liquefied air are used to illustrate the method.
摘要翻译： 提出了一种用于显着提高红外光谱法灵敏度和特异性的技术，用于定量测定各种载体或溶剂气体中的微量杂质。 要检查杂质的气体是液化的，并且获得液体的红外吸收光谱。 光路中的光谱简化和杂质数密度明显高于类似气相分析中可获得的。 使用商业Xe中存在的二氧化碳杂质（DIFFERENCE 2ppm）和添加到液化空气中的氟利昂12和氯乙烯的ppm水平来说明该方法。
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公开(公告)号：US06766141B1
公开(公告)日：2004-07-20
申请号：US10187025
申请日：2002-06-28
IPC分类号： H04B1302
CPC分类号： H04B1/38 , G01S13/756 , H01Q3/2647 , H01Q3/46
摘要： The present invention includes an apparatus and method for telemetry communication with oil-well monitoring and recording instruments located in the vicinity of the bottom of gas or oil recovery pipes. Such instruments are currently monitored using electrical cabling that is inserted into the pipes; cabling has a short life in this environment, and requires periodic replacement with the concomitant, costly shutdown of the well. Modulated reflectance, a wireless communication method that does not require signal transmission power from the telemetry package will provide a long-lived and reliable way to monitor down-hole conditions. Normal wireless technology is not practical since batteries and capacitors have to frequently be replaced or recharged, again with the well being removed from service. RF energy generated above ground can also be received, converted and stored down-hole without the use of wires, for actuating down-hole valves, as one example. Although modulated reflectance reduces or eliminates the loss of energy at the sensor package because energy is not consumed, during the transmission process, additional stored extra energy down-hole is needed.
摘要翻译： 本发明包括一种用于与位于气体或油回收管道底部附近的油井监测和记录仪器进行遥测通信的装置和方法。 目前使用插入管道的电缆来监测这些仪器; 电缆在这种环境下寿命短，需要定期更换，并伴随着昂贵的关闭井。 调制反射率，不需要来自遥测包装的信号传输功率的无线通信方法将提供长期可靠的监测井下条件的方法。 正常的无线技术是不实际的，因为电池和电容器必须经常被更换或充电，再次从维护中恢复正常。 作为一个示例，地面上产生的RF能量也可以被接收，转换和存储在井下而不使用电线，用于致动井下阀。 尽管调制的反射率降低或消除了传感器封装处的能量损失，因为能量不被消耗，但在传输过程中，需要另外存储的额外的能量下钻孔。
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公开(公告)号：US4554060A
公开(公告)日：1985-11-19
申请号：US69151
申请日：1979-08-23
CPC分类号： B01D59/34
摘要： Separation of carbon isotopes by photolysis of CS.sub.2 in cryogenic solutions of nitrogen, krypton and argon with 206 nm light from an iodine resonance lamp is reported. The spectral distribution of the ultraviolet absorption depends on solvent. Thus, in liquid nitrogen the photolytic decomposition rate of .sup.13 CS.sub.2 is greater than that of .sup.12 CS.sub.2 (because the absorption of 206 nm radiation is greater for .sup.13 CS.sub.2), whereas in liquid krypton and liquid argon the reverse is true. The shift in ultraviolet spectrum is a general phenomenon readily characterized as a function of solvent polarizability, and exhibits behavior similar to that for vibrational transitions occurring in the infrared.
摘要翻译： 据报道，通过使用来自碘共振灯的206nm光从氮，氪和氩的低温溶液中CS2的光解作用分离碳同位素。 紫外吸收的光谱分布取决于溶剂。 因此，在液氮中，13CS2的光解分解速率大于12CS2（由于对于13CS2的206nm辐射的吸收较大），而在液态氪气和液态氩中，反之亦然。 紫外光谱的变化是容易被表征为溶剂极化率的函数的一般现象，并且表现出类似于在红外线中发生的振动跃迁的行为。
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公开(公告)号：US4405423A
公开(公告)日：1983-09-20
申请号：US299233
申请日：1981-09-03
申请人： Samuel M. Freund
发明人： Samuel M. Freund
CPC分类号： C01B35/061
摘要： Selective ultraviolet photolysis using an unfiltered mercury arc lamp has been used to substantially reduce the phosgene impurity in a mixture of boron trichloride and phosgene. Infrared spectrophotometric analysis of the sample before and after irradiation shows that is is possible to highly purify commercially available boron trichloride with this method.
摘要翻译： 已经使用未过滤的汞弧灯进行选择性紫外光解，以显着降低三氯化硼和光气混合物中的光气杂质。 在照射前后的样品的红外分光光度分析表明，用这种方法可以高效地纯化市售的三氯化硼。
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5.发明授权Long-range, full-duplex, modulated-reflector cell phone for voice/data transmission 有权用于语音/数据传输的长距离，全双工，调制反射器手机公开(公告)号：US06434372B1
公开(公告)日：2002-08-13
申请号：US09760193
申请日：2001-01-12
IPC分类号： H03C152
CPC分类号： H04B1/38 , G01S13/756 , H01Q3/2647 , H01Q3/46
摘要： A long-range communications apparatus utilizing modulated-reflector technology is described. The apparatus includes an energy-transmitting base station and remote units that do not emit radiation in order to communicate with the base station since modulated-reflector technology is used whereby information is attached to an RF carrier wave originating from the base station which is reflected by the remote unit back to the base station. Since the remote unit does not emit radiation, only a low-power power source is required for its operation. Information from the base station is transmitted to the remote unit using a transmitter and receiver, respectively. The range of such a communications system is determined by the properties of a modulated-reflector half-duplex link.
摘要翻译： 描述了利用调制反射器技术的远程通信装置。 该设备包括能量传输基站和不发射辐射的远程单元，以便与基站通信，因为使用调制反射器技术，从而信息附加到源自基站的RF载波，其由 远程单元返回到基站。 由于远程单元不发射辐射，因此只需要一个低功率电源来进行操作。 来自基站的信息分别使用发射机和接收机发送到远程单元。 这种通信系统的范围由调制反射器半双工链路的特性决定。
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公开(公告)号：US4213836A
公开(公告)日：1980-07-22
申请号：US839238
申请日：1977-10-04
CPC分类号： B01J19/121 , B01D59/34 , C01B4/00
摘要： Hydrogen isotope separation is achieved by either (a) dissolving a hydrogen-bearing feedstock compound in a liquid solvent, or (b) liquefying a hydrogen-bearing feedstock compound, the liquid phase thus resulting being kept at a temperature at which spectral features of the feedstock relating to a particular hydrogen isotope are resolved, i.e., a clear-cut isotope shift is delineated, irradiating the liquid phase with monochromatic radiation of a wavelength which at least preferentially excites those molecules of the feedstock containing a first hydrogen isotope, inducing photochemical reaction in the excited molecules, and separating the reaction product containing the first isotope from the liquid phase.
摘要翻译： 氢同位素分离通过以下方式实现：（a）将含氢原料化合物溶解在液体溶剂中，或（b）液化含氢原料化合物，由此得到的液相保持在温度为 与特定氢同位素相关的原料被分解，即清晰的同位素位移被描绘，用至少优先激发含有第一氢同位素的原料的那些分子的波长的单色辐射照射液相，诱导光化学反应 在激发的分子中，并将含有第一同位素的反应产物与液相分离。
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公开(公告)号：US3996120A
公开(公告)日：1976-12-07
申请号：US648346
申请日：1976-01-12
申请人： Samuel M. Freund , Joseph J. Ritter
发明人： Samuel M. Freund , Joseph J. Ritter
CPC分类号： B01J19/121 , B01D59/34 , Y10S423/07
摘要： A boron trichloride starting material containing both boron-10 isotopes andoron-11 isotopes is selectively enriched in one or the other of these isotopes by a laser-induced photochemical method involving the reaction of laser-excited boron trichloride with either H.sub.2 S or D.sub.2 S. The method is carried out by subjecting a low pressure gaseous mixture of boron trichloride starting material and the sulfide to infrared radiation from a carbon dioxide TE laser. The wave length of the radiation is selected so as to selectively excite one or the other of boron-10 BCl.sub.3 molecules or boron-11 BCl.sub.3 molecules, thereby making them preferentially more reactive with the sulfide. The laser-induced reaction produces both a boron-containing solid phase reaction product and a gaseous phase containing mostly unreacted BCl.sub.3 and small amounts of sulfhydroboranes. Pure boron trichloride selectively enriched in one of the isotopes is recovered as the primary product of the method from the gaseous phase by a multi-step recovery procedure. Pure boron trichloride enriched in the other isotope is recovered as a secondary product of the method by the subsequent chlorination of the solid phase reaction product followed by separation of BCl.sub.3 from the mixture of gaseous products resulting from the chlorination.
摘要翻译： 含有硼-10同位素和硼-11同位素的三氯化硼原料通过激光诱导的光化学方法选择性地富集在这些同位素中的一种或另一种中，所述光化学方法涉及激光激发的三氯化硼与H2S或D2S的反应。 该方法通过使三氯化硼起始材料和硫化物的低压气体混合物经受来自二氧化碳TE激光的红外辐射来进行。 选择辐射的波长以选择性地激发硼-10BCl 3分子或硼-11BCl 3分子中的一个或另一个，从而使它们优先与硫化物更具反应性。 激光诱导反应产生含硼固相反应产物和大部分未反应的BCl 3和少量磺基氢硼烷的气相。 选择性富集一种同位素的纯三氯化硼通过多步骤回收方法从气相中回收作为该方法的主要产物。 通过随后氯化固相反应产物，然后从氯化得到的气态产物的混合物中分离BCl3，回收富含另一同位素的纯三氯化硼作为该方法的次要产物。
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