公开(公告)号：US4373137A

公开(公告)日：1983-02-08

申请号：US159115

申请日：1980-06-13

申请人： Walter Fabinski ,  Udo Deptolla ,  Margareta Ascherfeld

发明人： Walter Fabinski ,  Udo Deptolla ,  Margareta Ascherfeld

IPC分类号： G01N21/61 ,  G01N21/37 ,  G01J1/00

CPC分类号： G01N21/37 ,  G01N21/61

摘要： The chopped infrared radiation leaving a measuring and sample gas chamber in an infrared gas analyzer is passed through and into two serially arranged detection chambers which are connected to a differential pressure chamber with capacitive pickup. The chambers are filled with gas of the type whose concentration, in the sample gas, is to be detected. One of the detector chambers contains a thin black wire, a diaphragm on the outside may shield an adjustable portion of that wire from radiation. The wire absorbs all radiation it intercepts and heats the environment.

摘要翻译： 在红外线气体分析仪中离开测量和样品气室的切碎的红外辐射通过并连接到具有电容拾取器的差压室的两个连续布置的检测室中。 这些室充满了要在样品气体中检测浓度的气体。 检测器室中的一个包含细黑色线，外部的隔膜可以屏蔽该电线的可调部分与辐射。 电线吸收其截取的所有辐射并加热环境。

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：US4306153A

公开(公告)日：1981-12-15

申请号：US129691

申请日：1980-03-12

申请人： Walter Fabinski ,  Margareta Ascherfeld

发明人： Walter Fabinski ,  Margareta Ascherfeld

IPC分类号： G01N21/61 ,  G01N21/37 ,  G01N21/26

CPC分类号： G01N21/37 ,  G01N21/61

摘要： A two-beam, infrared gas analyzer includes a front and a rear detection cell in each path filled with gas of the type to be detected; and a pressure-differential chamber with capacitor pick-up is connected to these front and rear cells. The rear cells are constructed to ensure substantially complete absorption of all radiation of the absorption band being characteristic of the component to be detected. In one example, filters are interposed between front and rear cells for broadband, i.e., nonselective attenuation. Alternatively, the rear cells are connected to a reservoir of the same gas to attenuate pressure variations. Either case enhances frequency selectivity by reducing cross sensitivity.

摘要翻译： 双光束红外气体分析仪包括在每个路径中的前和后检测单元，其填充有待检测类型的气体; 并且具有电容器拾取器的压差室连接到这些前和后单元。 后室被构造成确保吸收带的所有辐射的基本上完全吸收，被检测元件的特征在于。 在一个示例中，滤波器被插入用于宽带的前和后单元之间，即非选择性衰减。 或者，后电池连接到相同气体的储存器以衰减压力变化。 两种情况都可以通过降低交叉灵敏度来提高频率选择性。