公开(公告)号：US20150323452A1

公开(公告)日：2015-11-12

申请号：US14334529

申请日：2014-07-17

Applicant: Advantest Corporation

Inventor： Edward King ,  David Heaps ,  Mark Sullivan ,  Richard McKay ,  Eiji Kato

IPC: G01N21/3586 ,  G01N21/3563 ,  G01B11/06 ,  G01N33/15

CPC classification number: G01N21/3586 ,  G01B11/06 ,  G01N21/3563 ,  G01N33/15 ,  G01N2201/061 ,  G01N2201/0692

Abstract: A method of determining material properties for an object under test is disclosed. The method comprises determining a thickness at a point on the object under test in a non-invasive manner. It also comprises obtaining a terahertz measurement by passing terahertz radiation through the object under test using a terahertz emitter and detecting the terahertz radiation using a terahertz detector. Finally, it comprises determining an optical property at the point on the object under test using a measurement value from the terahertz emitter and the terahertz detector and a measured value for the thickness at the point.

Abstract translation: 公开了一种确定待测物体的材料特性的方法。 该方法包括以非侵入性方式确定被测物体上的某一点的厚度。 它还包括通过使用太赫兹发射器将太赫兹辐射通过待测物体，并使用太赫兹检测器检测太赫兹辐射来获得太赫兹测量。 最后，它包括使用来自太赫兹发射器和太赫兹检测器的测量值以及该点处的厚度的测量值来确定被测物体上的点处的光学特性。

公开(公告)号：US09417181B2

公开(公告)日：2016-08-16

申请号：US14273252

申请日：2014-05-08

Applicant: Advantest Corporation

Inventor： Edward King ,  David Heaps ,  Mark Sullivan

IPC: G01N21/3563 ,  G01N21/3581 ,  G01N21/3586 ,  G01B11/06 ,  G01N21/85 ,  G01N21/89 ,  G01N21/95 ,  G01N9/24

CPC classification number: G01N21/3586 ,  G01B11/0691 ,  G01N9/24 ,  G01N21/3563 ,  G01N21/3581 ,  G01N21/85 ,  G01N21/8901 ,  G01N21/8914 ,  G01N21/9508 ,  G01N2021/3572 ,  G01N2201/06113

Abstract: A method of determining a density of a roller compacted ribbon is disclosed. The method comprises compacting dry pharmaceutical powder between press rollers of a roller compactor to produce a compact ribbon. The method also comprises determining a thickness at a point on the compact ribbon in a non-invasive manner after it has rolled out from in between the press rollers. Further, the method comprises passing the compact ribbon through a gap in between the terahertz emitter and the terahertz detector. Next, the method comprises determining a refractive index at the point on the compact ribbon using a measurement value from the terahertz emitter and the terahertz detector and a measured value for the thickness at the point. Finally, the method comprises computing a density of the compact ribbon at the point using a value of the refractive index.

Abstract translation: 公开了一种确定辊压紧带的密度的方法。 该方法包括在辊式压实机的压辊之间压制干燥的药物粉末，以产生紧凑的带状物。 该方法还包括在压榨辊之间从其压出辊之间以非侵入方式确定紧密带上的一个点处的厚度。 此外，该方法包括使紧凑带通过太赫兹发射极和太赫兹检测器之间的间隙。 接下来，该方法包括使用来自太赫兹发射器和太赫兹检测器的测量值以及在该点处的厚度的测量值来确定紧凑型带上的点处的折射率。 最后，该方法包括使用折射率的值计算该点处的紧密带的密度。