公开(公告)号：US3970387A

公开(公告)日：1976-07-20

申请号：US547273

申请日：1975-02-05

申请人： Reimar Faulhaber ,  Margareta Ascherfeld ,  Walter Fabinski

发明人： Reimar Faulhaber ,  Margareta Ascherfeld ,  Walter Fabinski

IPC分类号： G01N21/61 ,  G01N21/37 ,  G01N21/36

CPC分类号： G01N21/37

摘要： The two beam analyzer has chambers traversed by infrared beams and passed through by test gas; the intensity of each beam is detected by a detector having chambers which are filled with gas of the same type as the gas to be detected (as a trace) in the test gas. Additionally, one beam path includes a selectivity cuvette or cell, filled exclusively with that type of gas, but at a rather low pressure.

摘要翻译： 两束光束分析仪具有红外光束穿过的腔室，通过测试气体通过; 每个光束的强度由检测器检测，该检测器具有填充有与要检测的气体（作为痕迹）相同类型的气体的测试气体。 此外，一个光束路径包括选择性比色皿或电池，仅由该类型的气体填充，但是处于相当低的压力。

公开(公告)号：US4176963A

公开(公告)日：1979-12-04

申请号：US740307

申请日：1976-11-09

申请人： Walter Fabinski ,  Reimar Faulhaber

发明人： Walter Fabinski ,  Reimar Faulhaber

IPC分类号： G01N21/31 ,  G01N21/27 ,  G01N21/33 ,  G01J3/48 ,  G01J3/46 ,  G01N21/22

CPC分类号： G01N21/33

摘要： Apparatus for determining the nitrogen oxide concentration in a gaseous mixture while minimizing measuring errors. The radiation from a hollow cathode lamp emitting the nitrogen oxide resonance radiation is modulated by a device for generating alternatively an unfiltered or test beam and a reference beam. The reference beam is filtered by a nitrogen oxide filled filter. An absorption cell is disposed in the path of the reference beam. Further, a monochromator or filter is provided and a detector for receiving the radiation from the monochromator filter. A signal processing unit is coupled to the detector for forming electric signals corresponding to the signal from the unfiltered and the reference beam and for forming the quotient thereof. A ray splitter is disposed in the path of the two beams to provide a different beam path and an additional radiation detector is disposed in the additional path. The signal processing unit has additional means for forming the quotient of the two signals generated by the additional detector and which have not passed the absorption cell. This will then provide an additional quotient of the two available quotients thus minimizing the normally occurring errors.

摘要翻译： 用于确定气体混合物中的氮氧化物浓度同时最小化测量误差的装置。 来自发射氮氧化物共振辐射的空心阴极灯的辐射由用于另外产生未过滤或测试光束和参考光束的装置调制。 参考光束被氮氧化物填充的过滤器过滤。 吸收单元设置在参考光束的路径中。 此外，提供单色仪或滤光器，以及用于接收来自单色器滤光器的辐射的检测器。 信号处理单元耦合到检测器，用于形成对应于未滤波和参考光束的信号的电信号并形成其商。 光束分离器设置在两个光束的路径中以提供不同的光束路径，并且另外的辐射检测器设置在附加路径中。 信号处理单元具有用于形成由附加检测器产生并且没有通过吸收单元的两个信号的商的附加装置。 这将提供两个可用商的附加商，从而最小化正常发生的错误。

公开(公告)号：US3937962A

公开(公告)日：1976-02-10

申请号：US528420

申请日：1974-11-29

申请人： Reimar Faulhaber ,  Kurt Moldenhauer

发明人： Reimar Faulhaber ,  Kurt Moldenhauer

IPC分类号： G01N21/61 ,  G01J1/16 ,  G01N21/37 ,  G01N21/26 ,  G01N21/36

CPC分类号： G01J1/16 ,  G01N21/37

摘要： A two infrared beam gas analyzer, with sample and reference paths and radiation chopper has two absorption cells as detectors wherein the pressures are compared in a first diaphragm capacitor and the sum with parameter modification by operation of pneumatic inpedances is formed in a second diaphragm capacitor. The ratio of the two capacitor outputs constitutes the output of the system. A compact unitary construction is described in detail including the detector chambers and one capacitor in a body serving as mounting element for the second capacitor with a frit like element interposed as pneumatic inpedances and rotational adjustment of that second capacitor as a whole results in parameter adjustment.

摘要翻译： 具有采样和参考路径和辐射斩波器的两个红外线束气体分析器具有两个作为检测器的吸收单元，其中在第一隔膜电容器中比较压力，并且在第二隔膜电容器中形成与通过气动阻抗的操作的参数修改的总和。 两个电容输出的比率构成系统的输出。 详细描述了紧凑的单一构造，其包括检测器室和用作第二电容器的安装元件的体积中的一个电容器，其中玻璃料样元件作为气动阻抗插入并且作为整体的第二电容器的旋转调节导致参数调整。