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1. 发明授权

US5473162A Infrared emission detection of a gas 失效
标题翻译：气体的红外发射检测
公开(公告)号：US5473162A
公开(公告)日：1995-12-05
申请号：US123733
申请日：1993-09-20
申请人： Kenneth W. Busch , M. Keith Hudson , Marianna A. Busch , Sidney W. Kubala, Jr. , David C. Tilotta , Christopher K. Y. Lam , Ravishankar Srinivasan , Yunke Zhand
发明人： Kenneth W. Busch , M. Keith Hudson , Marianna A. Busch , Sidney W. Kubala, Jr. , David C. Tilotta , Christopher K. Y. Lam , Ravishankar Srinivasan , Yunke Zhand
IPC分类号： G01N21/35 , G01N21/71 , G01N21/72 , G01N30/74 , G01N21/62
CPC分类号： G01N21/72 , G01N21/71 , G01N2021/3125 , G01N2021/3595 , G01N30/74
摘要： Apparatus and method for qualitatively and quantitatively analyzing infrared emission from excited molecules in the determination of, for example, total inorganic carbon, chloride and available chlorine in aqueous samples. Methods of exciting the gas-phase, infrared-active molecules to emit radiation include flame excitation, furnace excitation, excitation by electron impact in a gas discharge or excitation by collisions with a vibrationally excited diatomic molecule. The detector is optimized by use of dual beam system with background subtraction capabilities thereby eliminating background noise and fluctuations therein.
摘要翻译：在水样品中测定例如总无机碳，氯化物和有效氯的定性和定量分析激发分子的红外发射的装置和方法。激发气相红外活性分子发射辐射的方法包括火焰激发，炉激发，气体放电中的电子轰击激发或通过与振动激发的双原子分子碰撞的激发。通过使用具有背景消除能力的双光束系统来优化检测器，从而消除背景噪声和波动。

2. 发明授权

US5246868A Infrared emission detection 失效
标题翻译：红外发射检测
公开(公告)号：US5246868A
公开(公告)日：1993-09-21
申请号：US415141
申请日：1989-09-29
申请人： Kenneth W. Busch , M. Keith Hudson , Marianna A. Busch , Sidney W. Kubala, Jr. , David C. Tilotta , Christopher K. Y. Lam , Ravishankar Srinivasan
发明人： Kenneth W. Busch , M. Keith Hudson , Marianna A. Busch , Sidney W. Kubala, Jr. , David C. Tilotta , Christopher K. Y. Lam , Ravishankar Srinivasan
IPC分类号： G01N21/35 , G01N21/71 , G01N21/72 , G01N30/74
CPC分类号： G01N21/72 , G01N21/71 , G01N2021/3125 , G01N2021/3595 , G01N30/74 , Y10T436/153333 , Y10T436/19 , Y10T436/204998 , Y10T436/218 , Y10T436/235
摘要： Apparatus and method for qualitatively and quantitatively analyzing infrared emission from excited molecules in samples of interest is disclosed. Over the wavelength interval from 1 to 5 um, two strong emission bands are observed with a PbSe detector when organic compounds are introduced into an hydrogen/air flame. The band at 4.3 um (2326 cm.sup.-1 is due to the asymmetric stretch of carbon dioxide while the band at 2.7 um is due to both water and carbon dioxide emission. The carbon dioxide emission at 4.3 um is most intense at the tip of the flame, and increases with the amount of organic compound introduced into the flame. For chromatographic application, an optical filter can be used to isolate the 4.3 um emission band. The infrared emission detection system finds application in the determination of total inorganic carbon, chloride and available chlorine in aqueous samples. The detector is optimized by use of a dual beam system with background subtraction capabilities thereby eliminating background noise and the fluctuations therein.
摘要翻译：公开了用于定性和定量分析目标样品中激发分子的红外发射的装置和方法。在1至5um的波长间隔内，当将有机化合物引入氢气/空气火焰时，用PbSe检测器观察到两个强烈的发射带。 4.3米（2326厘米-1）的带是由于二氧化碳的不对称拉伸，而2.7米的波段是由于水和二氧化碳的排放造成的，二氧化碳排放量在4.3微米处最为强烈火焰，并且随着引入火焰的有机化合物的量而增加，对于色谱应用，可以使用滤光器隔离4.3um的发射带，红外发射检测系统可用于测定总无机碳，氯化物和通过使用具有背景消除能力的双光束系统优化检测器，从而消除背景噪声及其中的波动。

3. 发明授权

US4856897A Raman spectrometer having Hadamard electrooptical mask and diode detector 失效
标题翻译：拉曼光谱仪具有Hadamard电光掩模和二极管检测器
公开(公告)号：US4856897A
公开(公告)日：1989-08-15
申请号：US85530
申请日：1987-08-14
申请人： William G. Fateley , David C. Tilotta
发明人： William G. Fateley , David C. Tilotta
IPC分类号： G01J3/12 , G01J3/28 , G01J3/44 , G02F1/13
CPC分类号： G01J3/2846 , G01J3/44 , G02F1/1313 , G01J2003/1269 , G01J2003/285 , G01J3/0229
摘要： An improved Raman spectrometer device is provided which provides useful spectral information in situations where Raman spectroscopy has heretofore been unworkable. The spectrometer of the invention makes use of a stationary electrooptical masking device in lieu of conventional slit scanning optics, with the mask being computer controlled to provide a multiplexing function, typically employing Hadamard mathematics. The stationary encoding mask permits use of a relatively inexpensive photodiode detector, as compared with photomultiplier tubes conventionally used in Raman instrumentation. Advantageously, unwanted Rayleigh scattered radiation can be completely eliminated, either by blanking those zones of the mask receiving such radiation, or physically locating the device in such orientation that the Rayleigh scattered radiation does not pass through operative portions of the mask.
摘要翻译：提供了一种改进的拉曼光谱仪装置，其在拉曼光谱迄今为止不能工作的情况下提供有用的光谱信息。本发明的光谱仪利用固定的电光掩模装置代替传统的狭缝扫描光学器件，其掩模被计算机控制以提供通常采用Hadamard数学的复用功能。与常规用于拉曼仪器的光电倍增管相比，固定编码掩模允许使用相对便宜的光电二极管检测器。有利的是，可以通过对接收这种辐射的掩模的那些区域进行消隐，或者将该器件物理地定位成使得瑞利散射辐射不通过掩模的可操作部分的方向，来完全消除不需要的瑞利散射辐射。

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