公开(公告)号：US10458900B2

公开(公告)日：2019-10-29

申请号：US15759165

申请日：2016-09-07

申请人： Honeywell International Inc.

发明人： Terry Marta ,  James Allen Cox ,  Bernard Fritz ,  Antony Phillips ,  Rodney Watts

IPC分类号： G01N21/17 ,  G01N21/3504 ,  G01N21/37 ,  G01N29/24 ,  G01N29/44

摘要： A non-dispersive photoacoustic gas detector includes an infrared light source, a first closed chamber, a first acoustic sensor in fluid communication with the first closed chamber, a second closed chamber, and a second acoustic sensor in fluid communication with the second closed chamber. The first closed chamber comprises a plurality of windows that are substantially transparent to infrared light from the infrared light source. The second closed chamber comprises at least one window that is substantially transparent to infrared light from the infrared light source, and the first closed chamber is arranged in series with the second closed chamber between the infrared light source and the second closed chamber.

公开(公告)号：US07728978B2

公开(公告)日：2010-06-01

申请号：US11873723

申请日：2007-10-17

申请人： Xin Zhou ,  Xiang Liu ,  Gregory M. Sanger

发明人： Xin Zhou ,  Xiang Liu ,  Gregory M. Sanger

IPC分类号： G01N21/00 ,  G01N21/37

CPC分类号： G01N21/3504 ,  G01N21/031 ,  G01N21/3554 ,  G01N21/39

摘要： Moisture can be detected in a refrigerant background such as HFC (Hydrofluorocarbon) HFC-134A and HFC-152A and exampled by HFC-23, HFC-32, HFC-143A, HFC-125, HFC-245FA, HFC-227EA, and the like. The system can include a light source operating at any one of several wavelengths within the water absorption bands at wavelengths such as 1.4, 1.9 and 2.7 μm and a detector that measures the transmitted light intensity through the HFC samples. In one variation, the light source is a tunable diode laser and the moisture level is determined by direct absorption and harmonic spectroscopy. Related techniques, apparatus, systems, and articles are also described.

摘要翻译： 可以在制冷剂背景下检测水分，例如HFC（HFC），HFC-134A和HFC-152A，并由HFC-23，HFC-32，HFC-143A，HFC-125，HFC-245FA，HFC-227EA和 喜欢。 该系统可以包括在诸如1.4,1.9和2.7μm的波长的范围内在吸水带内的几个波长中的任何一个处操作的光源和测量通过HFC样品的透射光强度的检测器。 在一个变型中，光源是可调谐二极管激光器，并且通过直接吸收和谐波光谱确定水分含量。 还描述了相关技术，装置，系统和制品。

公开(公告)号：US20050082483A1

公开(公告)日：2005-04-21

申请号：US10958011

申请日：2004-10-04

申请人： Takuji Oida ,  Shigeyuki Akiyama ,  Masahiko Endo ,  Norikazu Iwata ,  Satoshi Inoue ,  Masahiko Fujiwara

发明人： Takuji Oida ,  Shigeyuki Akiyama ,  Masahiko Endo ,  Norikazu Iwata ,  Satoshi Inoue ,  Masahiko Fujiwara

IPC分类号： G01J5/02 ,  G01N21/00 ,  G01N21/01 ,  G01N21/05 ,  G01N21/27 ,  G01N21/31 ,  G01N21/37 ,  G01N21/61 ,  G01N35/02

CPC分类号： G01N21/3504 ,  G01N21/05 ,  G01N21/276

摘要： This invention relates to a multi-component absorbance monitor, and the object is to provide a general-purpose and highly accurate compact absorbance monitor. Disclosed is an absorbance monitor including a light source, a sample cell and a plurality of detectors as elements, wherein a light collecting member is arranged between the light source and one detector, and an inside wall of the light collecting member has a site for guiding a part of light from the light source, that is, a light guiding opening, and light from the light guiding opening enters another detector. Preferably, the light collecting member lies between the light source and the sample cell. Preferably, an optical element used for another detector described above is arranged in the light guiding opening and adjacently to a light path formed by the light collecting member.

摘要翻译： 本发明涉及一种多组分吸光度监测器，其目的是提供一种通用且高精度的紧凑吸光度监测器。 公开了一种吸光度监测器，其包括光源，样品池和多个检测器作为元件，其中集光构件布置在光源和一个检测器之间，并且集光构件的内壁具有用于引导的位置 来自光源的光的一部分，即导光孔，并且来自导光孔的光进入另一检测器。 优选地，光收集构件位于光源和样品池之间。 优选地，用于上述另一检测器的光学元件布置在导光孔中并且与由光收集构件形成的光路相邻。

公开(公告)号：US20050056080A1

公开(公告)日：2005-03-17

申请号：US10910776

申请日：2004-08-02

申请人： Christopher Lucci ,  Mark Gartner

发明人： Christopher Lucci ,  Mark Gartner

IPC分类号： A61B5/00 ,  A61M1/36 ,  G01N7/16 ,  G01N21/37 ,  G01N29/02 ,  G01N29/032 ,  G01N29/22

CPC分类号： G01N29/228 ,  A61B5/14557 ,  A61M1/3666 ,  A61M1/367 ,  A61M2230/202 ,  A61M2230/205 ,  G01N7/16 ,  G01N21/37 ,  G01N29/032 ,  G01N29/222 ,  G01N2201/06186 ,  G01N2291/0224 ,  G01N2291/02466

摘要： A method and apparatus for measuring blood gas concentrations and partial pressures, in real time, using a pneumatic detector to indicate partial pressure variations in the blood gas.

摘要翻译： 实时测量血液气体浓度和分压的方法和装置，使用气动检测器来指示血气中的分压变化。

公开(公告)号：US6078049A

公开(公告)日：2000-06-20

申请号：US51811

申请日：1998-08-24

申请人： Frank Schafer ,  Stefan Meier

发明人： Frank Schafer ,  Stefan Meier

IPC分类号： G01N33/497 ,  G01N21/3504 ,  G01N21/37 ,  G01N21/31

CPC分类号： G01N21/274 ,  G01N21/3504 ,  G01N21/37

摘要： A stable isotope analyzer is concentration calibrated by measuring relative proportions of isotopes in a measurement gas. The measurement gas is a component of a gaseous mixture consisting of the measurement gas and one other gas or a mixture of gases containing none of the measurement gas. First, a mixture is produced with a relatively high concentration of the measurement gas and known isotope proportions. The concentration of the measurement gas in the other gas is determined and the isotope proportion is measured to determine a point on a calibration curve (measured isotope proportion values vs. measured concentration values). At least one further point on the calibration curve is determined by diluting the measurement gas in the mixture by introducing a gas or gaseous mixture containing no measurement gas. The reduced concentration is determined and the isotope proportion measured to determine another point on the calibration curve. The steps of reducing the measurement gas concentration in the gaseous mixture, measuring the measurement gas concentration, and measuring the isotope proportion are preferably repeated a plurality of times to plot the calibration curve more accurately.

摘要翻译： PCT No.PCT / EP96 / 04384 Sec。 371日期：1998年8月24日 102（e）1998年8月24日PCT PCT 1996年10月9日PCT公布。 第WO97 / 14952号公报 日期1997年4月24日稳定同位素分析仪通过测量测量气体中同位素的相对比例进行浓度校准。 测量气体是由测量气体和另一种气体组成的气体混合物的组分或不含测量气体的气体混合物。 首先，产生具有较高浓度的测量气体和已知同位素比例的混合物。 确定其他气体中测量气体的浓度，并测量同位素比例以确定校准曲线上的点（测量的同位素比值与测量的浓度值）。 通过引入不含测量气体的气体或气体混合物来稀释混合物中的测量气体来确定校准曲线上的至少一个点。 确定降低的浓度并测量同位素比例以确定校准曲线上的另一个点。 优选重复多次重复减少气体混合物中的测量气体浓度，测量测量气体浓度和测量同位素比例的步骤以更准确地绘制校准曲线。

公开(公告)号：US5479019A

公开(公告)日：1995-12-26

申请号：US266628

申请日：1994-06-28

申请人： Joachim Gross

发明人： Joachim Gross

IPC分类号： G01N21/35 ,  G01N21/37 ,  G01N21/61

CPC分类号： G01N21/37 ,  G01N21/61

摘要： A measuring apparatus based on the NDIR process. Pulsed infrared light traverses in two parallel optical beams (3, 4) initially a cell (6) filled with .sup.13 CO.sub.2 and a cell (7) filled with .sup.12 CO.sub.2 and then, in parallel, two cells (8, 9) which are filled with the gas sample to be analyzed. Cells (8, 9) together with a capacitor microphone (15) serving as the pressure converting means form an optopneumatic receiver (17). By regulating the pressure in cell (6) the minimum of the pressure conversion signal is investigated and related to a correspondingly obtained reference value. The simply constructed apparatus permits a .sup.13 CO.sub.2 breathing test to be performed inexpensively.

摘要翻译： 基于NDIR过程的测量装置。 脉冲红外光在两个平行的光束（3,4）中首先穿过填充有13CO2的电池（6）和填充有12CO2的电池（7），然后平行地穿过两个电池（8,9），两个电池（8,9）填充有 气体样品进行分析。 电池（8,9）与用作压力转换装置的电容器麦克风（15）一起形成一个气动式气动接收器（17）。 通过调节电池（6）中的压力，调查压力转换信号的最小值，并与相应获得的参考值相关。 简单构造的装置允许廉价地执行13CO2呼吸测试。

公开(公告)号：US5003175A

公开(公告)日：1991-03-26

申请号：US359510

申请日：1989-06-01

申请人： Walter Fabinski ,  Georg Taubitz ,  Joachim H. von Wolfframsdorff

发明人： Walter Fabinski ,  Georg Taubitz ,  Joachim H. von Wolfframsdorff

IPC分类号： G01N21/61 ,  G01N21/37

CPC分类号： G01N21/37 ,  G01N21/61 ,  G01N2201/127 ,  G01N2201/1285

摘要： The photometer is calibrated by using a permanently built-in installation of four, similarly configured chambers in a good heat conducting carrier which is slidably interposed between sample and reference chambers on one hand and the detection structure on the other hand. One pair of these chambers is placed in the paths during measurement and is filled with inert gas, the other pair has one chamber filled with calibration gas, the other one with inert gas. All chambers are closed with similar windows.

摘要翻译： 通过使用永久内置的四个相同配置的室，在一个良好的导热载体中，一方面可滑动地插入在样品室和参考室之间以及另一方面检测结构来校准光度计。 一对这些室在测量期间放置在路径中，并且填充有惰性气体，另一对具有填充有校准气体的一个室，另一个室具有惰性气体。 所有的房间都有类似的窗户关闭。

公开(公告)号：US4801805A

公开(公告)日：1989-01-31

申请号：US87171

申请日：1987-08-19

申请人： James W. Butler ,  Paul D. Maker ,  Thomas J. Korniski ,  Alex D. Colvin

发明人： James W. Butler ,  Paul D. Maker ,  Thomas J. Korniski ,  Alex D. Colvin

IPC分类号： G01J3/45 ,  G01J3/28 ,  G01J3/453 ,  G01N1/28 ,  G01N1/38 ,  G01N21/35 ,  G01N33/00 ,  G01N21/37

CPC分类号： G01N33/0016 ,  G01J3/453 ,  G01N21/3504 ,  G01J2003/2866 ,  G01N1/38 ,  G01N2001/383 ,  G01N2001/388 ,  G01N2021/3595 ,  G01N2201/1215

摘要： A method is disclosed of making an on-line gas analysis of a multicomponent gas emission flow by (a) continuously sequestering a sample flow from the gas emission flow, which sample flow has been filtered to substantially eliminate solid or liquid particles, diluted to lower its dew point to below room temperature, and changed in either temperature and/or pressure to be substantially the same in temperature and pressure as that of gases used to create reference transmission frequency spectral data deployed in step (d); (b) continuously irradiating the sample flow with an electromagnetic radiation beam while modulating the amplitude of infrared frequencies in the audio frequency range of the beam, either prior to or immediately subsequent to irradiation of the sample flow, to produce electromagnetic signals having discernible amplitude variations resulting from spectral interference patterns; (c) detecting and collecting the signals at a sufficiently high rate to substantially completely distinguish between adjacent spectral pattern amplitude peaks without mutual spectral interference and to permit analysis of the signals in real time; and (d) analyzing the signals in real time by (i) mathematically manipulating the signals in accordance with Beer's Law to create reformed background-corrected data, and (ii) applying reference transmission frequency spectral data to the reformed data for each suspected gaseous component to give a linear quantitative measure of the presence of each and every suspected gas component in the gas emission flow.

公开(公告)号：US4694174A

公开(公告)日：1987-09-15

申请号：US782516

申请日：1985-10-01

申请人： Louis W. Erath

发明人： Louis W. Erath

IPC分类号： G01J1/44 ,  G01N21/37 ,  G01N21/61

CPC分类号： G01N21/37 ,  G01J2001/4242

摘要： An apparatus and method for detecting gas concentration using an infrared absorption gas detector. Noise due to vibration is substantially reduced by integrating the voltage produced by the gas detector with an integrator having an adjustable time constant. The time constant is adjusted to a long value during times when the gas concentration is remaining relatively constant. When the gas concentration is changing substantially, the time constant is adjusted to a relatively short value to allow the output of the integrator to better follow the changes.

摘要翻译： 一种使用红外吸收气体检测器检测气体浓度的装置和方法。 通过将由气体检测器产生的电压与具有可调整的时间常数的积分器集成，由于振动引起的噪声显着降低。 在气体浓度保持相对恒定的时间内将时间常数调整为长值。 当气体浓度基本上变化时，将时间常数调整到相对较短的值，以使积分器的输出更好地跟随变化。

公开(公告)号：US4692622A

公开(公告)日：1987-09-08

申请号：US803967

申请日：1985-12-03

申请人： Harutaka Taniguchi ,  Takafumi Fumoto

发明人： Harutaka Taniguchi ,  Takafumi Fumoto

IPC分类号： G01N21/61 ,  G01N21/37

CPC分类号： G01N21/37

摘要： An infrared analyzer where infrared radiation is passed through a measurement cell containing a material that includes a component that absorbs infrared radiation. The radiation exiting the measurement cell passes into a first detector, through an optical filter to a second infrared radiation detector. By analyzing the outputs from each detector and by knowing the characteristics of the optical filter, the concentration of certain infrared absorbing components in the material can be determined.

摘要翻译： 一种红外分析仪，其中红外辐射通过含有包含吸收红外辐射的组分的材料的测量池。 离开测量单元的辐射通过光学滤波器进入第一检测器到第二红外辐射检测器。 通过分析每个检测器的输出，通过了解滤光器的特性，可以确定材料中某些红外线吸收组分的浓度。