公开(公告)号：US20050288873A1

公开(公告)日：2005-12-29

申请号：US10878974

申请日：2004-06-28

申请人： Nelson Urdaneta ,  Aaron Tint ,  Hao Duan ,  Eric Redemann ,  Christopher Wacinski

发明人： Nelson Urdaneta ,  Aaron Tint ,  Hao Duan ,  Eric Redemann ,  Christopher Wacinski

IPC分类号： G01F1/00 ,  G01F1/66

CPC分类号： G01F1/667 ,  G01F1/66 ,  G05D7/0635 ,  Y10T137/7761

摘要： An ultrasonic flow meter includes a conduit, a first ultrasonic transducer, a second ultrasonic transducer, and a controller. The first ultrasonic transducer is disposed at a first position about a first portion of the conduit to transmit a first ultrasonic signal and to receive a second ultrasonic signal. The second ultrasonic transducer is disposed at a second position about a second portion of the conduit that is spaced apart from the first position along a length of the conduit to transmit the second ultrasonic signal and to receive the first ultrasonic signal. The controller is configured to cross-correlate the first and second received ultrasonic signals and generate a resulting time-domain signal, analyze the resulting time-domain signal to determine a difference in transit time between the first and second received ultrasonic signals, and calculate a rate of flow of a fluid in the conduit based upon the determined difference.

摘要翻译： 超声波流量计包括导管，第一超声换能器，第二超声波换能器和控制器。 第一超声换能器设置在围绕导管的第一部分的第一位置处，以传输第一超声波信号并接收第二超声波信号。 所述第二超声波换能器设置在所述导管的第二部分的第二位置处，所述第二部分沿着所述导管的长度与所述第一位置间隔开以传输所述第二超声波信号并接收所述第一超声波信号。 所述控制器被配置为使所述第一和第二接收的超声波信号互相关，并产生所得的时域信号，分析所得到的时域信号以确定所述第一和第二接收的超声波信号之间的传播时间差，并且计算 基于所确定的差异，导管中流体的流速。

公开(公告)号：US09024252B2

公开(公告)日：2015-05-05

申请号：US13401765

申请日：2012-02-21

申请人： Ronald Chiarello ,  Shad Pierson ,  Christopher Wacinski ,  Mark Arbore ,  Yevgeny Anoikin

发明人： Ronald Chiarello ,  Shad Pierson ,  Christopher Wacinski ,  Mark Arbore ,  Yevgeny Anoikin

IPC分类号： H01J5/02 ,  G01N21/43

CPC分类号： G01N21/431 ,  G01N21/553 ,  G01N2021/434 ,  G01N2021/437

摘要： An optical sensor apparatus includes an optically transmissive structure having planar first, second, and third faces, two or more light sources located outside the structure adjacent the first face, and a photodetector array located outside the prism adjacent the first face. The structure, light sources, and photodetector array are configured such that light from the light sources that is totally internally reflected at an optical interface between the prism and a sample outside the structure proximate the second face is reflected at the third face and incident on a portion of the photodetector array that depends on a refractive index of the sample. The light sources are positioned with respect to the structure and photodetector array such that the totally internally reflected light from each light source corresponds to a different range of refractive index of the sample and maps to a corresponding portion of the photodetector array.

摘要翻译： 一种光学传感器装置包括具有平面的第一，第二和第三面的光学透射结构，位于与第一面相邻的结构外的两个或更多个光源，以及位于邻近第一面的棱镜外部的光电检测器阵列。 结构，光源和光电检测器阵列被配置为使得来自光源的光在棱镜和靠近第二面的结构外部的光学界面处被内部反射的光在第三面处被反射并且入射到 光电检测器阵列的部分取决于样品的折射率。 光源相对于结构和光电检测器阵列定位，使得来自每个光源的全内部反射光对应于样品的不同折射率范围并且映射到光电检测器阵列的相应部分。

公开(公告)号：US20130214138A1

公开(公告)日：2013-08-22

申请号：US13401765

申请日：2012-02-21

申请人： Ronald Chiarello ,  Shad Pierson ,  Christopher Wacinski ,  Mark Arbore ,  Yevgeny Anoikin

发明人： Ronald Chiarello ,  Shad Pierson ,  Christopher Wacinski ,  Mark Arbore ,  Yevgeny Anoikin

IPC分类号： G01J1/04 ,  G01J1/42

CPC分类号： G01N21/431 ,  G01N21/553 ,  G01N2021/434 ,  G01N2021/437

摘要： An optical sensor apparatus includes an optically transmissive structure having planar first, second, and third faces, two or more light sources located outside the structure adjacent the first face, and a photodetector array located outside the prism adjacent the first face. The structure, light sources, and photodetector array are configured such that light from the light sources that is totally internally reflected at an optical interface between the prism and a sample outside the structure proximate the second face is reflected at the third face and incident on a portion of the photodetector array that depends on a refractive index of the sample. The light sources are positioned with respect to the structure and photodetector array such that the totally internally reflected light from each light source corresponds to a different range of refractive index of the sample and maps to a corresponding portion of the photodetector array.

摘要翻译： 一种光学传感器装置包括具有平面的第一，第二和第三面的光学透射结构，位于与第一面相邻的结构外的两个或更多个光源，以及位于邻近第一面的棱镜外部的光电检测器阵列。 结构，光源和光电检测器阵列被配置为使得来自光源的光在棱镜和靠近第二面的结构外部的光学界面处被内部反射的光在第三面处被反射并且入射到 光电检测器阵列的部分取决于样品的折射率。 光源相对于结构和光电检测器阵列定位，使得来自每个光源的全内部反射光对应于样品的不同折射率范围并且映射到光电检测器阵列的相应部分。