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公开(公告)号：US3949231A
公开(公告)日：1976-04-06
申请号：US567112
申请日：1975-04-10
申请人： Otto Blunck , Heinz Delin , Rudolf Muller , Werner Voss
发明人： Otto Blunck , Heinz Delin , Rudolf Muller , Werner Voss
摘要： A cylindrically shaped coil of resistance wire constitutes a source of infrared radiation which is located within a reflector comprised of a curved reflector section having a reflecting surface shaped to resemble an axially bisected rotationally symmetrical paraboloid, and a cylindrical reflector section which extends from an open side of the curved reflector section. The focal points of the reflecting surface are located on a circle which coincides with the outer circumference of the cylindrically shaped coil.
摘要翻译： 电阻丝的圆柱形线圈构成红外辐射源，其位于由具有成形为类似于轴向二等分的旋转对称抛物面的反射表面的弯曲反射器部分的反射器内，以及从开口侧延伸的圆柱形反射器部分 的弯曲反射器部分。 反射面的焦点位于与圆筒状线圈的外周重合的圆上。
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公开(公告)号：US3932041A
公开(公告)日：1976-01-13
申请号：US538768
申请日：1975-01-06
摘要： A cylindrical block is provided with two ducts, forming a V whose legs terminate in exit windows in one axial end face of the block. A light source is disposed in the bottom of the V to direct light into both ducts. The block is further traversed by a bore, terminating as to one end in between the windows, avoiding the ducts and terminating in an offset position relative to the V-bottom and the light source at the other end of the block. A shaft traverses this bore for rotating a shutter in front of the windows. A complementary, light receiving unit is disposed with misaligned entrance windows in front of the unit windows, but their centers are traversed respectively by the optical axes of the ducts.
摘要翻译： 圆柱形块体设置有两个管道，形成一个V，其腿部在块的一个轴向端面终止于出口窗口。 光源设置在V的底部以将光引导到两个管道中。 块通过孔进一步移动，终止于窗口之间的一端，避开管道并终止于相对于V底部的偏移位置和在块的另一端处的光源。 轴穿过该孔，用于在窗户前方旋转挡板。 互补的光接收单元设置在单元窗口前方的未对准的入口窗口，但是它们的中心分别由管道的光轴穿过。
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公开(公告)号：US3740555A
公开(公告)日：1973-06-19
申请号：US3740555D
申请日：1968-07-22
申请人： HARTMANN & BRAUN AG
发明人： SCHAEFER W
CPC分类号： G01N21/37
摘要： A modulated twin beam selective radiation absorption monitoring analyzer. Beam modulation is converted to modulated electrical quantity fed to an amplifier and thence to a rectifier to give reading, the rectifier having a sensitivity threshold exceeding the amplified zero drift prior to rectification. Sample cell length is chosen such that the amount of absorption therein is in the range of 40 to 60 percent. The absorption by a sample of known composition is simulated by a change in beam intensity.
摘要翻译： 调制双光束选择性辐射吸收监测分析仪。 光束调制转换为馈送到放大器的调制电量，然后转换为整流器以给出读数，整流器具有超过校正前的放大零漂的灵敏度阈值。 选择样品池长度使得其中的吸收量在40至60％的范围内。 已知组合物的样品的吸收通过束强度的变化来模拟。
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公开(公告)号：US3560736A
公开(公告)日：1971-02-02
申请号：US3560736D
申请日：1968-10-09
CPC分类号： G01N21/37
摘要： Separate pulsed sample and reference beams of infrared energy are passed, respectively, through sample and reference gases to separate chambers in a detector unit for measuring the absorption of the sample beam by a component of interest in the sample gas. In the detector unit, the relative absorption of the two beams is measured by a flow responsive sensor in a passage connecting the two chambers, the sensor having a rate of change of resistance that varies inversely with temperature. By substantially unbalancing the two beams, in the absence of a component of interest in the sample gas, so that the sample beam is the stronger before the beams enter the detector unit, the sensitivity of the instrument is greatly increased because of the nonlinear response of the sensor. The greater the initial unbalance, the greater the sensitivity. In the extreme case, the unbalance amounts to complete suppression of the reference beam, so that the analyzer becomes a single beam instrument.
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公开(公告)号：US3560735A
公开(公告)日：1971-02-02
申请号：US3560735D
申请日：1968-10-09
发明人： STRANGE JOHN P , FREILINO RAY S , BECKER EARL M
IPC分类号： G01J1/42 , G01J5/62 , G01N21/31 , G01N21/33 , G01N21/35 , G01N21/37 , G01N21/61 , G01N21/26 , G01N21/34
CPC分类号： G01N21/33 , G01N21/3103 , G01N21/3518 , G01N21/37
摘要： A flow responsive detector for use in an infrared gas analyzer includes a pair of gas chambers, at least one of which is adapted to be irradiated by a pulsed beam of infrared energy to produce alternate heating and cooling, and concomitant expansion and contraction, of the gas therein when that gas contains a radiation absorbing component. A sensor responsive to gas flow in the form of a thermistor that has a negative temperature coefficient of resistance and a rate of change of resistance that varies inversely with temperature is mounted in a flow chamber, which is connected by a separate passage with each gas chamber. Where these passages enter the flow chamber, they are provided with jet orifices for directing a high velocity stream or jet flow of gas on the sensor in response to the expansion and contraction of gas in at least one of the gas chambers, thereby greatly enhancing the favorable nonlinear response characteristics of the sensor.
摘要翻译： 分析仪连续地包括红外线源，调制器，含有气体混合物的分析室和检测器以及相关联的电子电路，用于处理由检测器传送的电信号。 调制器周期性地插入吸收待分析的特定气体的特征线的气体参考滤波器的辐射路径，以及不吸收这些线路的测量滤波器。 滤波器通过两个相同的基本滤波器彼此分离，该基本滤波器包括允许灰度传输略低于参考滤波器的平均传输的元件，使得检测器依次递送测量信号和参考信号，该参考信号和参考信号相对于所确定的共同级别 由基本过滤器。 电子处理电路包括用于放大和解复用信号的装置，以及用于建立和读出测量信号和参考信号的商的装置。 这个商只是所寻求的浓度的代表。
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56.发明授权Adjustable support and alinement means for a multibeam infrared gas analyser 失效适用于多种红外气体分析仪的可调节支持和排列方式
公开(公告)号：US3454760A
公开(公告)日：1969-07-08
申请号：US3454760D
申请日：1966-08-29
申请人： HARTMANN & BRAUN AG
CPC分类号： G01N21/33 , G01N21/3103 , G01N21/3518 , G01N21/37
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公开(公告)号：US2999929A
公开(公告)日：1961-09-12
申请号：US57565756
申请日：1956-04-02
申请人： PARSONS C A & CO LTD
IPC分类号： G01N21/37
CPC分类号： G01N21/37
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公开(公告)号：US2986633A
公开(公告)日：1961-05-30
申请号：US69610657
申请日：1957-11-13
发明人： MARTIN ALBERT E
IPC分类号： G01N21/37
CPC分类号： G01N21/37
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公开(公告)号：US2963580A
公开(公告)日：1960-12-06
申请号：US68458957
申请日：1957-09-17
发明人： JOHN SMART
IPC分类号： G01N21/37
CPC分类号： G01N21/37
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