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1.发明授权
公开(公告)号：US4373137A
公开(公告)日：1983-02-08
申请号：US159115
申请日：1980-06-13
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。
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公开(公告)号：US3970387A
公开(公告)日：1976-07-20
申请号：US547273
申请日：1975-02-05
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。
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公开(公告)号：US4306153A
公开(公告)日：1981-12-15
申请号：US129691
申请日：1980-03-12
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。
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公开(公告)号：US4281248A
公开(公告)日：1981-07-28
申请号：US145364
申请日：1980-04-30
申请人： Walter Fabinski , Udo Deptolla
发明人： Walter Fabinski , Udo Deptolla
摘要： The cross-sensitivity of a two-beam infrared gas analyzer is reduced by using two differently long cells for the sample gas in the two beam paths. The path with the short sample gas cell is intercepted by a detector cell having highly absorbing wall while the detector cell in the other path is highly reflective, e.g., made of gold. The two detector cells are interconnected by a differential pressure chamber with capacitive pickup.
摘要翻译： 通过对两个光束路径中的样品气体使用两个不同长度的单元来减少双光束红外气体分析仪的交叉灵敏度。 具有短样品气体池的路径被具有高吸收壁的检测器单元截取，而另一路径中的检测器单元是高反射性的，例如由金制成。 两个检测器单元通过具有电容拾取器的差压室互连。
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公开(公告)号：US4180732A
公开(公告)日：1979-12-25
申请号：US953639
申请日：1978-10-23
申请人： Walter Fabinski , Udo Deptolla
发明人： Walter Fabinski , Udo Deptolla
摘要： The sensitivity and selectivity of a two beam analyzer operating with negative filtering and differential absorption-pressure detection is improved by employing differently long cells for the sample gas in the two beam paths, which reduces the effect resulting from overlapping absorption bands of the wanted and of unwanted components in the sample gas.
摘要翻译： 通过对两个光束路径中的样品气体采用不同长度的细胞，可以提高使用负滤波和差分吸收压力检测操作的双光束分析仪的灵敏度和选择性，从而降低了由需要的重叠吸收带和 样品气体中不需要的组分。
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公开(公告)号：US4496840A
公开(公告)日：1985-01-29
申请号：US289184
申请日：1981-08-03
申请人： Walter Fabinski , Udo Deptolla
发明人： Walter Fabinski , Udo Deptolla
摘要： A nondispersive, two-beam, infrared gas analyzer with two differently long measuring gas cells and differential detectors is improved by gilt detection cell interiors and absorbing rods in the detector cell which is in line with the shorter measuring gas cell. Adjustable absorption permits suppression of cross sensitivity errors.
摘要翻译： 具有两个不同长度的测量气体单元和差分检测器的非分散双光束红外气体分析仪通过检测器单元内的镀金检测单元内部和吸收杆而改进，其与较短的测量气体单元一致。 可调吸收允许抑制交叉敏感性错误。
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公开(公告)号：US4288693A
公开(公告)日：1981-09-08
申请号：US46549
申请日：1979-06-07
申请人： Walter Fabinski , Udo Deptolla
发明人： Walter Fabinski , Udo Deptolla
CPC分类号： G01N21/37
摘要： The cross sensitivity of a two-beam infrared gas analyzer is eliminated by using two differently long cells for the measuring gas in the two beam paths and by using an interference filter at least in the beam path containing the longer cell; the filter, however, does not filter the entire beam in that path.
摘要翻译： 双光束红外线气体分析仪的交叉灵敏度通过使用两个不同长度的单元用于两个光束路径中的测量气体并且至少在包含较长单元的光束路径中使用干涉滤光器来消除; 然而，滤波器不会过滤该路径中的整个波束。
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公开(公告)号：US5077469A
公开(公告)日：1991-12-31
申请号：US591295
申请日：1990-10-01
申请人： Walter Fabinski , Guenter Bernhardt
发明人： Walter Fabinski , Guenter Bernhardt
CPC分类号： G01N21/274 , G01N21/37 , G01N21/61
摘要： Compensation and calibration method for a nondispersive infrared gas analyzer which includes an infrared source of radiation, a measuring path, a reference path, modulation devices, a detector for differential pressure measuring, comprises the following steps: first and prior to measurement, the reference gas having a variable basic concentration in the measuring component is forced through the reference branch and through the measuring branch and the detector is set to a zero position; next a dual calibration chamber is placed into the two reference paths while both of them are still passed through by the reference gas, one of the calibration chambers including a particular concentration in the measuring gas the other one lacking that measuring gas; now the sensitivity and amplification of the detector that obtains as a result of changes in the radiation on account of placing the calibration chamber into the reference and measuring path is adjusted, whereupon the calibration chamber is removed, reference gas still is passed through the reference chamber, while measuring gas now flows through the measuring chamber.
摘要翻译： 包括红外辐射源，测量路径，参考路径，调制装置，差压测量用检测器的非分散型红外线气体分析仪的补偿和校准方法包括以下步骤：在测量之前和之前，参考气体 在测量部件中具有可变的基本浓度被迫通过参考分支并通过测量分支，并且检测器被设置为零位置; 接下来，将双重校准室放置在两个参考路径中，同时它们仍然被参考气体通过，其中一个校准室在测量气体中包括特定的浓度，另一个校准室中缺少该测量气体; 现在调整由于将校准室置于参考和测量路径而由辐射变化而获得的检测器的灵敏度和放大率，从而校准室被移除，参考气体仍然通过参考室 而测量气体现在流经测量室。
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公开(公告)号：US4999013A
公开(公告)日：1991-03-12
申请号：US338723
申请日：1989-04-14
CPC分类号： G01N21/31 , G01J3/26 , G01N2201/067
摘要： Interferometric equipment for detecting a substance having a structure preferably a periodic or quasiperiodic absorption spectrum; the equipment includes a source of radiation, a path for that radiation that includes a sample cell with the substance to be detected, an interference filter and a detector, and is improved in that the interference filter is constructed as an electrically tunable filter, including a plate or cell element with semitransparent reflective boundaries serving as electrodes; an electrical voltage is applied to said electrodes such that the transmission characteristics of the filter is varied and the amplitude of the voltage as applied to these electrodes is an indication of that variation; and the thickness of the plate or cell is selected to meet one of the following criteria (i) a distance between the interference lines produced equals a distance of absorption lines within a periodic absorption spectrum of said substance; (ii) the equipment causes a line to be separated from the radiation having a bandwidth which is small as compared with a spacing between two absorption lines of the substance to be found (iii) the equipment causes a line to be separated from the radiation, to overlap an edge of an absorption band of the substance to be directed.
摘要翻译： 用于检测具有优选周期性或准周期性吸收光谱的结构的物质的干涉仪; 该设备包括辐射源，该辐射路径包括具有待检测物质的样品池，干涉滤光器和检测器，并且改进了干涉滤光器被构造为电可调滤光器，包括 具有用作电极的半透明反射边界的板或单元元件; 电压被施加到所述电极，使得滤波器的传输特性改变，并且施加到这些电极的电压的幅度是该变化的指示; 选择板或单元的厚度以满足以下标准之一（i）产生的干涉线之间的距离等于所述物质的周期性吸收光谱内的吸收线的距离; （ii）设备使得线路与具有与要发现的物质的两条吸收线之间的间隔相比较小的带宽的辐射分离（iii）设备使线路与辐射分离， 以与待导向的物质的吸收带的边缘重叠。
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公开(公告)号：US4682031A
公开(公告)日：1987-07-21
申请号：US856585
申请日：1986-04-25
申请人： Walter Fabinski , Werner Schaefer
发明人： Walter Fabinski , Werner Schaefer
CPC分类号： G01N21/37
摘要： A infrared gas analyzer having measuring and reference chambers and receiving chambers respectively disposed on radiation exit sides of the measuring and reference chambers and being filled with a particular gas; a pressure communicating duct system including a particular chamber interconnects the two receiving chambers is partitioned by a foil of polyvinylidenfluoride being piezo electrically effective to generate an electrical signal on account of a pressure differential between the two receiving chambers, as indication of the concentration of the measuring gas, i.e., host gas that flows through the measuring chamber.
摘要翻译： 一种红外线气体分析仪，其具有分别设置在测量和参考室的辐射出口侧并且被特定气体填充的测量和参考室和接收室; 包括连接两个接收室的特定室的压力连通管道系统由聚电解质氟化物的箔分隔开，其压电有效，由于两个接收室之间的压力差产生电信号，作为测量浓度的指示 气体，即流过测量室的主体气体。
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