公开(公告)号：US06177672B1

公开(公告)日：2001-01-23

申请号：US09220474

申请日：1998-12-23

申请人： Yao Min Lin ,  Yung Hsin Chen ,  Jack Chen

发明人： Yao Min Lin ,  Yung Hsin Chen ,  Jack Chen

IPC分类号： G01N122

CPC分类号： G01N1/22 ,  G01N21/3504

摘要： The present invention relates to an improved gas sampling device comprising a pair of hollow rectangular chambers having diffusion apertures, a heat insulating plate, a reflecting element, a light source and a light detector; wherein the pair of rectangular chambers are arranged one over the other, with the heat insulating element being placed therebetween, the reflecting element having two reflecting surfaces at right angle with respect to each other, one end of the rectangular chambers being secured to the reflecting element with each end thereof being aligned with a reflecting surface, the light source and the light detector being placed at the other end respectively of the rectangular chambers. In use, the rectangular chambers are placed horizontally with the light source being in the lower chamber such that when light is emitted from the light source, light rays pass through the lower chamber and are reflected by the reflecting surface to enter into the upper chamber and, finally, received by the light detector. The concentration of the gas can be measured by analyzing the variation in intensity resulted from the specific wavelength of the infrared light absorbed in the chambers by the gas to be measured. With the light source being packed in a metal, gas sampling rate is increased with the gas flowing into the upper chamber by the convection due to the higher temperature in the lower chamber than that in the upper chamber when light is emitted.

摘要翻译： 本发明涉及一种改进的气体采样装置，包括一对具有扩散孔的中空矩形室，绝热板，反射元件，光源和光检测器; 其特征在于，所述一对矩形室彼此重叠配置，隔热元件位于其间，所述反射元件具有相对于彼此成直角的两个反射面，所述矩形室的一端固定于所述反射元件 其每个端部与反射表面对准，光源和光检测器分别放置在矩形室的另一端。 在使用中，矩形室水平放置，光源位于下腔室中，使得当光从光源发射时，光线穿过下腔室并被反射表面反射进入上腔室， 最后由光检测器接收。 可以通过分析由被测量气体在室中吸收的红外光的特定波长产生的强度变化来测量气体的浓度。 当光源被包装在金属中时，由于在发射光时由于较低室中的较高温度，气体通过对流而流入上室中，所以气体取样速率增加。

公开(公告)号：US6151971A

公开(公告)日：2000-11-28

申请号：US219012

申请日：1998-12-23

申请人： Yao Min Lin ,  Yung Hsin Chen ,  Jack Chen

发明人： Yao Min Lin ,  Yung Hsin Chen ,  Jack Chen

IPC分类号： G01N1/22 ,  G01N21/05 ,  G01N21/35 ,  G01N1/00

CPC分类号： G01N1/22 ,  G01N21/05 ,  G01N21/3504

摘要： A gas sampling device comprises an elongated tube having a plurality of holes on the wall thereof a porous mesh surrounding the outer surface of said tube, a light source located at one end of said tube, a light sensor located at the other end of said tube, a first housing mounted at the one side of the tube for holding said light source, a second housing mounted on the other end of the tube for holding said light sensor, and a gas flowing channel formed in at least one of said first and second housing for communicating the interior and said the exterior of the tube thereby producing an action of thermal convection to promote the concentration of the gas in the interior of the tube to reach a stable balance condition rapidly.

摘要翻译： 气体采样装置包括细长管，该管在其壁上具有围绕所述管的外表面的多孔网，位于所述管的一端的光源，位于所述管的另一端的光传感器 安装在用于保持所述光源的管的一侧的第一壳体，安装在用于保持所述光传感器的管的另一端上的第二壳体，以及形成在所述第一和第二壳体中的至少一个中的气体流动通道 用于使内部和外部连通的壳体，从而产生热对流作用，以促进管内部的气体浓度快速达到稳定的平衡状态。

公开(公告)号：US06237392B1

公开(公告)日：2001-05-29

申请号：US09219014

申请日：1998-12-23

申请人： Gu-Sheng Yu ,  Yao Min Lin

发明人： Gu-Sheng Yu ,  Yao Min Lin

IPC分类号： G01N122

CPC分类号： G01N1/22

摘要： An inspection apparatus for gas detectors is disclosed which comprises an open-feasibly air-tight testing reservoir in which gas detectors to be tested can be positioned, an air-tight dispensing reservoir for mixing the gas to be tested, a vacuum device for making the testing reservoir and the dispensing reservoir in vacuum, a gas supply device for supplying at least a standard gas and a diluting gas to the dispensing reservoir, and a controlling means for controlling the dispensation of the gases to each of the above-described components of the invention. By means of the invention, the executions of the mixing of the gases and the detection of the gas detector are substantially simultaneous and thus the time consumption as well as the amount of required gas are reduced. Moreover, an automatic control is available when the inspection apparatus of the invention is equipped with a computer.

摘要翻译： 公开了一种用于气体检测器的检查装置，其包括可开封气密的测试容器，其中可以定位要测试的气体检测器，用于混合要测试的气体的气密分配储存器，用于使待测试气体混合的真空装置 在真空中测试储存器和分配储存器，用于向分配储存器供应至少标准气体和稀释气体的气体供应装置，以及用于控制气体分配到上述每个上述部件的控制装置 发明。 通过本发明，气体混合的执行和气体检测器的检测基本上同时进行，从而减少了所需时间的消耗以及所需气体的量。 此外，当本发明的检查装置配备有计算机时，可以进行自动控制。