公开(公告)号：US06473173B1

公开(公告)日：2002-10-29

申请号：US09485356

申请日：2000-02-04

申请人： Jürgen Hager ,  Walter Vieth ,  Dino Vieth

发明人： Jürgen Hager ,  Walter Vieth ,  Dino Vieth

IPC分类号： G01N2131

CPC分类号： B26D5/34 ,  B26D5/00 ,  B26D7/30 ,  G01N21/31 ,  G01N21/474 ,  G01N33/12

摘要： The invention relates to a method for determining the content of predetermined ingredients in products (3) of solid and nonhomogeneous consistency, preferably foodstuffs, in which a measuring head is guided with its front face over an outer surface of the product in a sliding manner while in continuous and direct contact with the surface.

摘要翻译： 本发明涉及一种用于确定固体和非均匀稠度（优选食品）的产品（3）中预定成分的含量的方法，其中测量头的前表面以产品的外表面滑动方式被引导，同时 与表面连续和直接接触。

公开(公告)号：US06777244B2

公开(公告)日：2004-08-17

申请号：US09732833

申请日：2000-12-06

申请人： David M. Pepper ,  Daniel Sievenpiper

发明人： David M. Pepper ,  Daniel Sievenpiper

IPC分类号： G01N2131

CPC分类号： G01N21/7746 ,  G01N21/031 ,  G01N21/774

摘要： A compact sensor for detection of chemical and/or biological compounds in low concentration. The sensor comprises electromagnetic microcavities. The agent to be detected passes the microcavities, is absorbed and/or absorbed by the microcavities, and modifies the electromagnetic field inside the microcavities. After the agent has been adsorbed and/or absorbed, a probe beam is applied to the microcavities. The change of electromagnetic field is detected by the detector, and the frequency of the probe beam at which the resonance is observed, is indicative of a particular agent being present. A method for detecting chemical and/or biological compounds using the sensor.

摘要翻译： 用于检测低浓度化学和/或生物化合物的紧凑型传感器。 该传感器包括电磁微腔。 要检测的试剂通过微腔，被微腔吸收和/或吸收，并且改变微腔内的电磁场。 在试剂被吸附和/或吸收之后，将探针束施加到微腔。 由检测器检测电磁场的变化，并且观察到共振的探测光束的频率表示存在特定的试剂。 使用该传感器检测化学和/或生物化合物的方法。

公开(公告)号：US06483589B1

公开(公告)日：2002-11-19

申请号：US09611260

申请日：2000-07-06

申请人： Katsumasa Suzuki ,  Hiroshi Masusaki ,  Takayuki Satoh

发明人： Katsumasa Suzuki ,  Hiroshi Masusaki ,  Takayuki Satoh

IPC分类号： G01N2131

CPC分类号： G01N21/3504 ,  G01N21/39 ,  G01N2021/399

摘要： In order to provide a laser spectroscopy system of simple construction and free of the effect of the fringe noise and to provide a laser spectroscopy system in which a reference cell is efficiently installed with minimum cost and space, there is disclosed a laser spectroscopy system comprising: a tunable laser diode source for generating a laser beam used for spectroscopic analysis; a sample cell where a sample gas is introduced; a first photo detector for measuring an intensity of a laser beam transmitted through the sample cell and having a beam receiving face; a beam splitter for splitting a portion of the laser beam from the laser source; and a second photo detector for measuring an intensity of a splitted laser beam from the beam splitter and having a beam receiving face, wherein the at least one of beam receiving faces is tilted to be at a predetermined angle from an axis of laser beam.

摘要翻译： 为了提供一种结构简单且不受边缘噪声影响的激光光谱系统，并且提供一种激光光谱系统，其包括以下步骤：激光光谱系统，该系统包括： 用于产生用于光谱分析的激光束的可调激光二极管源; 导入样品气体的样品池; 第一光电检测器，用于测量透射通过样品池并具有光束接收面的激光束的强度; 分束器，用于分离来自激光源的激光束的一部分; 以及第二光电检测器，用于测量来自分束器的分裂激光束的强度并具有光束接收面，其中所述光束接收面中的至少一个倾斜到与激光束轴成预定角度。

公开(公告)号：US06680479B1

公开(公告)日：2004-01-20

申请号：US09601325

申请日：2000-09-25

申请人： Stuart Charles Murray

发明人： Stuart Charles Murray

IPC分类号： G01N2131

CPC分类号： G01N21/3554 ,  G01J3/427

摘要： A water detecting apparatus includes a source of infra-red radiation which is reflected off an inner surface of a pipe wall onto a mirror directing the infra-red signal along a path to an infra-red detector connected by an electrical signal path to an electronic control. The path is interrupted by a rotating chopper having windows occupied by two optical filters. The first optical filter only passes an infra-red signal of wavelength 1900 nm which is absorbed by water, while the second optical filter only passes an infra-red signal of wavelength 2200 nm, another wavelength absorbed by water, but not to the same extent as the 1900 nm wavelength. The 2200 nm wavelength serves as a reference signal. When the strength of the infra-red signal path by the first optical filter decreases in relation to the strength of the infra-red reference signal path by the second optical filter, this is due to water on the surface absorbing the 1900 nm wavelength more than the 2200 nm wavelength, and the electronic control causes an indicator to indicate the presence of the water.

摘要翻译： 水检测装置包括红外辐射源，其从管壁的内表面反射到反射镜上，该反射镜将红外信号沿着通过电信号路径连接到电子信号路径的红外线检测器的路径 控制。 该路径被具有由两个光学滤波器占据的窗口的旋转斩波器中断。 第一光学滤波器仅通过由水吸收的波长为1900nm的红外信号，而第二滤光器仅通过波长为2200nm的红外信号，另一波长被水吸收，但不是相同程度 作为1900nm波长。 2200nm波长用作参考信号。 当第一滤光器的红外信号路径的强度相对于第二滤光器的红外参考信号路径的强度降低时，这是由于吸收1900nm波长的表面上的水超过 2200nm波长，并且电子控制使得指示符指示水的存在。

公开(公告)号：US06202470B1

公开(公告)日：2001-03-20

申请号：US09386669

申请日：1999-08-31

申请人： Mau-Song Chou

发明人： Mau-Song Chou

IPC分类号： G01N2131

CPC分类号： G01N21/1702

摘要： A system and method are set forth for photoacoustical analysis of isotope and other compounds having telltale absorption wavelengths between 1700-2500 nm. The system and method includes a Co:Mg F2, an optical parametric oscillator (OPO), or a diode laser tunable between 1700-2500 nm which is directed into a sample at energies sufficient to generate detectable acoustical emissions. A microphone detects the emissions for processing and analysis. The system and method is adapted to detect stable isotope compounds such as 13CO2 as well as other chemical compounds. For non-gaseous compounds, a CO2 or diode laser is used to photoablate the gaseous sample containing the suspected compound.

摘要翻译： 阐述了一种系统和方法，用于对同位素和其他化合物进行光声学分析，其特征在于吸收波长在1700-2500nm之间。 该系统和方法包括Co：MgF2，光学参量振荡器（OPO）或在1700-2500nm之间可调谐的二极管激光器，其在足以产生可检测的声发射的能量下被引导到样品中。 麦克风检测排放物进行处理和分析。 该系统和方法适用于检测稳定的同位素化合物，如13CO2以及其他化合物。 对于非气态化合物，使用CO 2或二极管激光来照射含有疑似化合物的气态样品。