公开(公告)号：US4950984A

公开(公告)日：1990-08-21

申请号：US319965

申请日：1989-03-07

申请人： Johann Otten ,  Scato Albarda ,  Hansjochen Schuck

发明人： Johann Otten ,  Scato Albarda ,  Hansjochen Schuck

IPC分类号： G01N27/76 ,  G01N27/74

CPC分类号： G01N27/74

摘要： The invention is directed to an apparatus for determining the proportion of substances having paramagnetic characteristics, such as oxygen, in a mixture of substances. The apparatus has a housing and the mixture of substances is passed along an arrangement of four magnetic field sources by a rotatable cuvette arrangement mounted in the housing. The apparatus is improved in that the effect of external disturbing influences on the penetration of the cuvette by the magnetic field is reduced and so that the measuring characteristics are independent of the position of the plurality of magnetic field generating units. For this purpose, the arrangement of the magnetic field sources is simply disposed at one side of the housing lying opposite to the rotating surface of the cuvette arrangement facing toward the drive shaft. The arrangement of magnetic field sources includes a carrier plate on which the magnetic field sources are accommodated and carry respective measuring field coils. The magnetic field sources face with their end faces toward the cuvette arrangement.

摘要翻译： 本发明涉及一种用于在物质混合物中确定具有顺磁特性的物质（例如氧）的比例的装置。 该装置具有壳体，并且物质的混合物通过安装在壳体中的可旋转比色杯装置沿着四个磁场源的布置传递。 该装置的改进在于外部干扰对磁珠渗透的影响减小，使得测量特性与多个磁场产生单元的位置无关。 为此，磁场源的布置简单地设置在壳体的与面向驱动轴的反应杯组件的旋转表面相对的一侧。 磁场源的布置包括容纳磁场源的承载板并携带相应的测量磁场线圈。 磁场源的端面朝向比色杯装置。

公开(公告)号：US4901197A

公开(公告)日：1990-02-13

申请号：US320164

申请日：1989-03-07

申请人： Scato Albarda ,  Werner Thoren ,  Johannes Lagois ,  Johann Otten

发明人： Scato Albarda ,  Werner Thoren ,  Johannes Lagois ,  Johann Otten

IPC分类号： G01L9/00

CPC分类号： G01L9/0005

摘要： The invention is directed to a sensor for making capacitive measurements of the pressure in gases and contains two measuring electrodes conjointly defining a capacitor and arranged in spaced relationship to each other. This sensor is improved such that a pressure measurement is possible without deformable parts. Long-term drift free measurements can be carried out with even the smallest electrode spacing being realized so that miniature sensors can be provided. The intermediate space between the electrodes is accessible to the gas to be investigated and has electrically insulating spacers between the electrodes. The spacers determine the spacing between the electrodes and maintains the electrode spacing during the measurement.

摘要翻译： 本发明涉及用于对气体中的压力进行容性测量的传感器，并且包含两个测量电极，其共同限定电容器并以彼此间隔开的关系布置。 该传感器被改进，使得可以在没有可变形部件的情况下进行压力测量。 即使实现最小的电极间距，也可以进行长期无漂移测量，从而可以提供微型传感器。 电极之间的中间空间对待研究的气体是可接近的，并且在电极之间具有电绝缘的间隔物。 间隔物确定电极之间的间距，并在测量期间保持电极间距。

公开(公告)号：US5202560A

公开(公告)日：1993-04-13

申请号：US904676

申请日：1992-06-26

申请人： Edmund Koch ,  Jens-Uwe Hagenah ,  Christoph Maurer ,  Ulrich Heim ,  Wilfried Diekmann ,  Johann Otten

发明人： Edmund Koch ,  Jens-Uwe Hagenah ,  Christoph Maurer ,  Ulrich Heim ,  Wilfried Diekmann ,  Johann Otten

IPC分类号： H01S5/0683 ,  H01S5/0687

CPC分类号： H01S5/0687 ,  H01S5/06837

摘要： The invention is directed to a method of operating a laser diode in a measuring system for spectroscopically measuring the concentration of a gaseous component in a gas sample. This method is improved in that the mode jumps of the laser diode are easily recognized when adjusting the temperature-current operating point of the laser diode. An optical filter is placed in the beam path for adjusting the temperature-current operating point of the laser diode and, by changing the temperature T and the operating current I of the laser diode while simultaneously receiving the output signal supplied by an evaluation unit, the spectral positions of the mode jumps of the laser diode are determined which are included in the absorption lines of the gas sample. Thereafter, the temperature-current operating point is adjusted so that the distance of this operating point to the positions of the mode jumps is not less than a fixed spacing. The invention is also directed to a measuring system for spectroscopically measuring the concentration of a gaseous component in a gas sample.

摘要翻译： 本发明涉及一种在测量系统中操作激光二极管的方法，用于光谱测量气体样品中气态组分的浓度。 改进了这种方法，因为当调节激光二极管的温度 - 电流工作点时，可以容易地识别出激光二极管的模式跳变。 光滤波器被放置在光束路径中，用于调节激光二极管的温度 - 电流工作点，并且通过改变激光二极管的温度T和工作电流I同时接收由评估单元提供的输出信号， 确定激光二极管的模式跳跃的光谱位置，其包括在气体样品的吸收线中。 此后，调整温度 - 电流工作点，使得该工作点与模式跳跃位置的距离不小于固定间距。 本发明还涉及用于光谱测量气体样品中气态组分浓度的测量系统。

公开(公告)号：US5493215A

公开(公告)日：1996-02-20

申请号：US203042

申请日：1994-02-28

申请人： Johann Otten

发明人： Johann Otten

IPC分类号： G01N27/76 ,  G01N27/74 ,  G01R33/12

CPC分类号： G01N27/74

摘要： An apparatus for determining the paramagnetic characteristics of substances such as oxygen includes a cuvette rotating in a magnetic field. The cuvette includes measuring chambers and reference chambers and an alternating voltage is induced in the measuring field coils by the rotation of the cuvette along the magnetic field. A base signal disturbing the measuring signal is also generated. This base signal is caused primarily by changes in the thickness of the material in the reference chambers and the measuring chambers and/or by material thickness changes of the cuvette. To eliminate this base signal, the cuvette includes a magnetic compensating device. This device is mounted at such a position that it generates a compensating magnetic field during its rotation through the magnetic field. This compensating field generates a compensating voltage which has the same amplitude as the base signal but has a signal waveform which is opposite in phase to the base signal.

摘要翻译： 用于确定诸如氧的物质的顺磁特性的装置包括在磁场中旋转的比色皿。 比色皿包括测量室和参考室，并且通过比色皿沿着磁场的旋转在测量场线圈中感应出交流电压。 还产生干扰测量信号的基本信号。 该基本信号主要由参考室和测量室中的材料厚度的变化和/或比色皿的材料厚度变化引起。 为了消除该基本信号，比色杯包括磁补偿装置。 该装置安装在这样一个位置，使得它在其通过磁场旋转期间产生补偿磁场。 该补偿场产生具有与基本信号相同幅度的补偿电压，但具有与基本信号相位相反的信号波形。