公开(公告)号：US06729185B2

公开(公告)日：2004-05-04

申请号：US09766251

申请日：2001-01-19

申请人： Tom Autrey ,  Clement R. Yonker

发明人： Tom Autrey ,  Clement R. Yonker

IPC分类号： G01N2922

CPC分类号： G01N29/2425 ,  G01N21/1702 ,  G01N29/222 ,  G01N29/227 ,  G01N29/2412 ,  G01N29/28 ,  G01N29/32 ,  G01N2291/015 ,  G01N2291/101

摘要： An improved photoacoustic vessel and method of photoacoustic analysis. The photoacoustic sample vessel comprises an acoustic detector, an acoustic couplant, and an acoustic coupler having a chamber for holding the acoustic couplant and a sample. The acoustic couplant is selected from the group consisting of liquid, solid, and combinations thereof. Passing electromagnetic energy through the sample generates an acoustic signal within the sample, whereby the acoustic signal propagates through the sample to and through the acoustic couplant to the acoustic detector.

摘要翻译： 改进的光声容器和光声分析方法。 光声样本容器包括声学检测器，声耦合器和具有用于保持声耦合剂和样品的室的声耦合器。 声耦合剂选自液体，固体及其组合。 将电磁能量通过样品在样品内产生声学信号，由此声学信号通过样品传播到声学耦合剂并通过声学耦合剂到声学检测器。

公开(公告)号：US06348968B2

公开(公告)日：2002-02-19

申请号：US09823560

申请日：2001-03-30

申请人： Tom Autrey ,  John L. Daschbach ,  James E. Amonette ,  Nancy S. Foster-Mills

发明人： Tom Autrey ,  John L. Daschbach ,  James E. Amonette ,  Nancy S. Foster-Mills

IPC分类号： G01N110

CPC分类号： G01N21/1702

摘要： The invention encompasses photoacoustic apparatuses and photoacoustic spectrometry methods. The invention also encompasses sample cells for photoacoustic spectrometry, and sample cell/transducer constructions. In one aspect, the invention encompasses a photoacoustic spectroscopy apparatus, comprising: a) a sample reservoir and an acoustically-stimulable transducer acoustically coupled with the sample reservoir, the transducer comprising a detector surface having a substantially planar portion; and b) a beam of light configured to be directed through the sample at an angle oblique relative to the substantially planar portion of the detector surface to generate sound waves in the sample. In another aspect, the invention encompasses a photoacoustic spectroscopy sample cell, comprising: a) a first block of material having opposing front and back surfaces, the front surface comprising a substantially planar portion configured to be against a sample and the back surface comprising a substantially planar portion configured to be joined to a transducer, the back surface being parallel to the front surface; and b) a pair of opposing side surfaces joined to opposite ends of the front and back surfaces, one of the opposing side surfaces being configured for passage of light therethrough and extending at a first oblique angle relative to a plane containing the substantially planar portion of the front surface.

摘要翻译： 本发明包括光声装置和光声光谱法。 本发明还包括用于光声光谱法的样品池和样品池/换能器构造。 一方面，本发明包括一种光声波光谱仪，包括：a）样品储存器和与样品储存器声学耦合的声学刺激的换能器，所述换能器包括具有基本上平面的部分的检测器表面; 以及b）配置成以相对于检测器表面的基本上平面的部分倾斜的角度引导通过样品的光束，以在样品中产生声波。 在另一方面，本发明包括光声光谱样品池，包括：a）具有相对的前表面和后表面的第一材料块，所述前表面包括构造成抵靠样品的基本平坦的部分，所述后表面包括基本上 平面部分，被配置为连接到换能器，所述后表面平行于所述前表面; 以及b）一对相对的侧表面，其连接到前表面和后表面的相对端部，相对的一个侧表面中的一个被构造成使光通过并相对于包含基本平坦部分的平面以第一倾斜角度延伸 前面。

公开(公告)号：US06236455B1

公开(公告)日：2001-05-22

申请号：US09105781

申请日：1998-06-26

申请人： S. Tom Autrey ,  John L. Daschbach ,  James E. Amonette ,  Nancy S. Foster-Mills

发明人： S. Tom Autrey ,  John L. Daschbach ,  James E. Amonette ,  Nancy S. Foster-Mills

IPC分类号： G01N110

CPC分类号： G01N21/1702

摘要： The invention encompasses photoacoustic apparatuses and photoacoustic spectrometry methods. The invention also encompasses sample cells for photoacoustic spectrometry, and sample cell/transducer constructions. In one aspect, the invention encompasses a photoacoustic spectroscopy apparatus, comprising: a) a sample reservoir and an acoustically-stimulable transducer acoustically coupled with the sample reservoir, the transducer comprising a detector surface having a substantially planar portion; and b) a beam of light configured to be directed through the sample at an angle oblique relative to the substantially planar portion of the detector surface to generate sound waves in the sample. In another aspect, the invention encompasses a photoacoustic spectroscopy sample cell, comprising: a) a first block of material having opposing front and back surfaces, the front surface comprising a substantially planar portion configured to be against a sample and the back surface comprising a substantially planar portion configured to be joined to a transducer, the back surface being parallel to the front surface; and b) a pair of opposing side surfaces joined to opposite ends of the front and back surfaces, one of the opposing side surfaces being configured for passage of light therethrough and extending at a first oblique angle relative to a plane containing the substantially planar portion of the front surface.

摘要翻译： 本发明包括光声装置和光声光谱法。 本发明还包括用于光声光谱法的样品池和样品池/换能器构造。 一方面，本发明包括一种光声波光谱仪，包括：a）样品储存器和与样品储存器声学耦合的声学刺激的换能器，所述换能器包括具有基本上平面的部分的检测器表面; 以及b）配置成以相对于检测器表面的基本上平面的部分倾斜的角度引导通过样品的光束，以在样品中产生声波。 在另一方面，本发明包括光声光谱样品池，包括：a）具有相对的前表面和后表面的第一材料块，所述前表面包括构造成抵靠样品的基本平坦的部分，所述后表面包括基本上 平面部分，被配置为连接到换能器，所述后表面平行于所述前表面; 以及b）一对相对的侧表面，其连接到前表面和后表面的相对端部，相对的一个侧表面中的一个被构造成使光通过并相对于包含基本平坦部分的平面以第一倾斜角度延伸 前面。