公开(公告)号：US10393763B2

公开(公告)日：2019-08-27

申请号：US13806833

申请日：2010-07-06

申请人： Junichi Kita ,  Motoo Kinoshita ,  Hisamitsu Akamaru ,  Masayuki Okada

发明人： Junichi Kita ,  Motoo Kinoshita ,  Hisamitsu Akamaru ,  Masayuki Okada

IPC分类号： G01N35/00 ,  G01N1/22 ,  G01N33/00 ,  G01N1/38 ,  G01N1/40

摘要： An odor discriminating apparatus includes: a measurement chamber including multiple pieces of odor sensors; a gas introducer for introducing a sample gas into the measurement chamber; concentration adjuster for diluting or condensing the sample gas before introducing the sample gas into the measurement chamber; a vector length computation unit for plotting, in a multidimensional space formed by axes corresponding to detection signals generated by each piece of odor sensors, a measurement point representing a measurement result of the sample gas and for computing a vector length of an odor vector directed from an origin of the multidimensional space to the measurement point; and a controller for feedback-controlling the concentration adjuster so that the vector length computed by the vector length computation unit reaches a predetermined target value.

公开(公告)号：US20130179089A1

公开(公告)日：2013-07-11

申请号：US13806833

申请日：2010-07-06

申请人： Junichi Kita ,  Motoo Kinoshita ,  Hisamitsu Akamaru ,  Masayuki Okada

发明人： Junichi Kita ,  Motoo Kinoshita ,  Hisamitsu Akamaru ,  Masayuki Okada

IPC分类号： G01N35/00

CPC分类号： G01N35/00584 ,  G01N1/22 ,  G01N1/38 ,  G01N1/405 ,  G01N33/0031

摘要： An odor discriminating apparatus includes: a measurement chamber including multiple pieces of odor sensors; a gas introducer for introducing a sample gas into the measurement chamber; concentration adjuster for diluting or condensing the sample gas before introducing the sample gas into the measurement chamber; a vector length computation unit for plotting, in a multidimensional space formed by axes corresponding to detection signals generated by each piece of odor sensors, a measurement point representing a measurement result of the sample gas and for computing a vector length of an odor vector directed from an origin of the multidimensional space to the measurement point; and a controller for feedback-controlling the concentration adjuster so that the vector length computed by the vector length computation unit reaches a predetermined target value.

摘要翻译： 气味鉴别装置包括：包括多个气味传感器的测量室; 用于将样品气体引入测量室的气体导入器; 浓度调节器，用于在将样品气体引入测量室之前稀释或冷凝样品气体; 矢量长度计算单元，用于在由与每个气味传感器产生的检测信号相对应的轴形成的多维空间中绘制表示样品气体的测量结果的测量点，并计算从 测量点的多维空间的起源; 以及控制器，用于反馈控制浓度调节器，使得由矢量长度计算单元计算的矢量长度达到预定目标值。

公开(公告)号：US06360584B1

公开(公告)日：2002-03-26

申请号：US09438442

申请日：1999-11-12

申请人： Kunihiko Okubo ,  Keiso Kawamoto ,  Motoo Kinoshita ,  Hiroshi Nakano ,  Jun-ichi Kita ,  Mitsuyoshi Yoshii ,  Hisamitsu Akamaru

发明人： Kunihiko Okubo ,  Keiso Kawamoto ,  Motoo Kinoshita ,  Hiroshi Nakano ,  Jun-ichi Kita ,  Mitsuyoshi Yoshii ,  Hisamitsu Akamaru

IPC分类号： G01N33497

CPC分类号： G01N33/0034 ,  G01N33/0031

摘要： A device for measurement of an odor component in a sample gas prepares many target gases to be actually measured by a plurality of sensors with different response characteristics, each containing the odor component at a different concentration. Detection signals from these sensors are analyzed by a method of multivariate analysis such as the principal component analysis, and the odor component is characterized on the basis of such an analysis. For preparing the target gases, the sample gas containing the odor component is passed through a collector tube containing an adsorbent which adsorbs this odor component at normal and subnormal temperature and desorbs it when heated. After a specified amount of the odor component is adsorbed to the adsorbent, the tube is heated and an inert gas serving as carrier gas is passed through such that the desorbed odor component is carried to the detectors as a target gas. The concentration of the odor component in such a target gas is controlled by the manner of flow of the carrier gas. In order to obtain a dependable result from such an analysis, response characteristics of each of the sensors may be analyzed by examining the relationship between the outputted detection signal and the concentration of the odor component in the target gas. Only those of the sensors which show a monotonically varying or linear response characteristics may be considered trustworthy and only the detection signals from such trustworthy detectors may be used for the analysis.

摘要翻译： 用于测量样品气体中的气味成分的装置通过具有不同响应特性的多个传感器来准备实际测量的许多目标气体，每个具有不同浓度的气味组分。 来自这些传感器的检测信号通过多变量分析的方法进行分析，例如主成分分析，并且基于这种分析来表征气味成分。 为了制备目标气体，含有气味成分的样品气体通过含有吸附剂的收集管，吸附剂在正常和低于正常温度下吸附该气味成分，并在加热时解吸。 在规定量的气味成分被吸附到吸附剂上之后，加热管，使作为载气的惰性气体通过，使解吸的气味成分作为目标气体输送到检测器。 这样的目标气体中的气味成分的浓度通过载气的流动方式进行控制。 为了从这种分析获得可靠的结果，可以通过检查输出的检测信号和目标气体中的气味成分的浓度之间的关系来分析每个传感器的响应特性。 只有显示单调变化或线性响应特性的传感器才能被认为是可靠的，并且只有来自这种可靠检测器的检测信号可用于分析。

公开(公告)号：US06633036B2

公开(公告)日：2003-10-14

申请号：US10078502

申请日：2002-02-21

申请人： Kunihiko Ohkubo ,  Junichi Kita ,  Motoo Kinoshita ,  Hiroshi Nakano

发明人： Kunihiko Ohkubo ,  Junichi Kita ,  Motoo Kinoshita ,  Hiroshi Nakano

IPC分类号： G01N2135

CPC分类号： G01N21/3504

摘要： An isotope gas measuring apparatus for measuring concentrations of components in a sample gas includes two sample cells through which the sample gas passes; a control cell filled with a gas having no absorbance at a wavelength of infrared light to be measured; a light source irradiating infrared light to the sample cells and the control cell; an optical coupler for coupling light permeated from the sample cells and the control cell; a first interference filter disposed between one sample cell and the optical coupler; a second interference filter disposed between the other sample cell and the optical coupler; and an optical detector for detecting infrared light from the optical coupler. The apparatus can minimize an influence of drift, and have a simple structure.

摘要翻译： 用于测量样品气体中的组分浓度的同位素气体测量装置包括样品气体通过的两个样品池; 填充有在要测量的红外线的波长处没有吸光度的气体的对照电池; 向所述样品池和所述控制单元照射红外光的光源; 用于耦合从样品池和控制室渗透的光的光耦合器; 布置在一个样品池和光耦合器之间的第一干涉滤光器; 设置在另一个样品池和光耦合器之间的第二干涉滤光器; 以及用于检测来自光耦合器的红外光的光检测器。 该装置可以最小化漂移的影响，并具有简单的结构

公开(公告)号：US06374662B1

公开(公告)日：2002-04-23

申请号：US09479012

申请日：2000-01-07

申请人： Ryutaro Oda ,  Motoo Kinoshita ,  Kunihiko Okubo ,  Keiso Kawamoto ,  Hiroshi Nakano

发明人： Ryutaro Oda ,  Motoo Kinoshita ,  Kunihiko Okubo ,  Keiso Kawamoto ,  Hiroshi Nakano

IPC分类号： G01N33497

CPC分类号： G01N35/1097 ,  G01N33/0014 ,  G01N33/0047

摘要： An odor measuring device has a collector tube containing an adsorbent which adsorbs sample components with odor at normal temperatures and desorbs them when heated. Flow routes for a sample gas containing sample components to be detected and an inactive gas are connected through valves to this collector tube. Initially, a sample gas containing sample components with odor is introduced into the collector tube at normal temperature such that the sample components to be detected are adsorbed to the adsorbent. Thereafter, the valves are switched such that the inactive gas is introduced into the collector tube while its temperature is increased by a heater, causing the sample components to be desorbed into the inactive gas and to be transported into an odor sensor. If odor sensors requiring oxygen for detection are used, an oxygen-containing gas such as air is mixed into the inactive gas after the latter has passed through the collector tube such that deterioration of the adsorbent by oxidation can be prevented.

摘要翻译： 气味测定装置具有含有吸附剂的收集管，该吸附剂在正常温度下吸附有气味的样品成分，并在加热时解吸。 含有待检测样品组分的样品气体和非活性气体的流动路径通过阀连接到该收集管。 首先，将含有气味的样品成分的样品气体在常温下引入收集管，使待检测的样品成分吸附在吸附剂上。 此后，切换阀，使得惰性气体被引入收集管中，同时通过加热器增加其温度，使得样品组分被解吸到惰性气体中并被运送到气味传感器中。 如果使用需要用于检测的氧气的气味传感器，则在惰性气体通过集电管之后，诸如空气的含氧气体被混合到惰性气体中，从而可以防止吸附剂的氧化劣化。