公开(公告)号：WO2004064116A3

公开(公告)日：2005-11-10

申请号：PCT/US2004000339

申请日：2004-01-08

Applicant: SOUTHWEST RES INST ,  OWEN THOMAS E ,  GAS RES INST

Inventor： OWEN THOMAS E

IPC: H04R17/00 ,  H01L41/08

CPC classification number: H04R17/005 ,  H04R17/00 ,  Y10S310/80

Abstract: A composite piezoelectric transducer, whose piezoelectric element is a ribbon wound film of piezoelectric material (101). As the film is excited, it expands and contracts, which results in expansion and contraction of the diameter of the entire ribbon winding. This is accompanied by expansion and contraction of the thickness of the ribbon winding, such that the sound radiating plate (103) may be placed on the side of the winding.

Abstract translation: 一种复合压电传感器，其压电元件是压电材料（101）的带状卷绕膜。 当电影激动时，它会膨胀和收缩，从而导致整个色带绕组直径的膨胀和收缩。 这伴随着带状卷绕件的厚度的膨胀和收缩，使得散热板（103）可以放置在绕组的侧面上。

公开(公告)号：WO2005022122A3

公开(公告)日：2006-08-10

申请号：PCT/US2004009108

申请日：2004-03-26

Applicant: SOUTHWEST RES INST ,  MORROW THOMAS B ,  OWEN THOMAS E

Inventor： MORROW THOMAS B ,  OWEN THOMAS E

IPC: G01N31/00 ,  G01N20060101 ,  G01N29/024 ,  G01N29/32 ,  G01N29/44 ,  G01N33/22 ,  G06F19/00

CPC classification number: G01N29/4418 ,  G01N29/024 ,  G01N29/323 ,  G01N29/326 ,  G01N33/225 ,  G01N2291/0215 ,  G01N2291/02809 ,  G01N2291/02881

Abstract: A method of indirectly measuring the diluent (nitrogen and carbon dioxide) concentrations in a natural gas mixture. The molecular weight of the gas is modeled as a function of the speed of sound in the gas, the diluent concentrations in the gas, and constant values, resulting in a model equation. A set of reference gas mixtures with known molecular weights and diluent concentrations is used to calculate the constant values. For the gas in question, if the speed of sound in the gas is measured at three states, the three resulting expressions of molecular weight can be solved for the nitrogen and carbon dioxide concentrations in the gas mixture.

Abstract translation: 间接测量天然气混合物中稀释剂（氮和二氧化碳）浓度的方法。 气体的分子量被模拟为气体中的声速，气体中的稀释剂浓度和常数值的函数，导致模型方程式。 使用一组具有已知分子量和稀释剂浓度的参考气体混合物来计算常数值。 对于所讨论的气体，如果在三种状态下测量气体中的声速，则可以解决三种分子量的表达式，以解决气体混合物中的氮和二氧化碳浓度。

公开(公告)号：WO2005022121A3

公开(公告)日：2005-08-04

申请号：PCT/US2004009107

申请日：2004-03-26

Applicant: SOUTHWEST RES INST ,  OWEN THOMAS E ,  MILLER MICHAEL A

Inventor： OWEN THOMAS E ,  MILLER MICHAEL A

IPC: G01N21/35 ,  G01N31/00 ,  G01N33/00

CPC classification number: G01N31/005 ,  G01N21/3504 ,  G01N33/0054 ,  Y02A50/246 ,  Y10T436/17 ,  Y10T436/173076 ,  Y10T436/173845 ,  Y10T436/175383 ,  Y10T436/176152 ,  Y10T436/177692 ,  Y10T436/178459

Abstract: A method of determining the amount of nitrogen in a gas mixture. The constituent gases of the mixture are dissociated and transformed to create a substance that may measured using nondispersive infrared adsorption techniques.

Abstract translation: 一种确定气体混合物中氮的量的方法。 混合物的构成气体被解离和转化以产生可以使用非分散红外吸收技术测量的物质。

公开(公告)号：WO2004063708A3

公开(公告)日：2005-02-24

申请号：PCT/US2004000342

申请日：2004-01-08

Applicant: SOUTHWEST RES INST ,  OWEN THOMAS E

Inventor： OWEN THOMAS E

IPC: G01J3/427 ,  G01N20060101 ,  G01N21/05 ,  G01N21/31 ,  G01N21/35 ,  G01N21/61 ,  G01N33/00

CPC classification number: G01N21/3518 ,  G01J3/0232 ,  G01J3/427 ,  G01N21/05 ,  G01N21/314 ,  G01N21/3504 ,  G01N21/61 ,  G01N33/004 ,  G01N33/0054 ,  G01N2021/3125 ,  G01N2021/3137 ,  G01N2201/0675 ,  G01N2201/1211 ,  G01N2201/1218 ,  Y02A50/244 ,  Y02A50/246

Abstract: A gas sensor (100), whose chamber (101) uses filters (106a, 106b) and choppers (107a, 107b) in either a semicircular geometry or annular geometry, and incorporates separate infrared radiation filters and optical choppers. This configuration facilitates the use of a single infrared radiation source (102) and a single detector (103) for infrared measurements at two wavelengths, such that measurement errors may be compensated.

Abstract translation: 一种气体传感器（100），其腔室（101）使用半圆形几何形状或环形几何形状的过滤器（106a，106b）和斩波器（107a，107b），并且包括单独的红外辐射过滤器和光学切割器。 该配置便于在两个波长处使用单个红外辐射源（102）和单个检测器（103）进行红外测量，使得可以补偿测量误差。