公开(公告)号：US08302461B2

公开(公告)日：2012-11-06

申请号：US12300952

申请日：2007-05-12

Applicant: Judit Angster ,  Andreas Schmohl ,  Andras Miklos

Inventor： Judit Angster ,  Andreas Schmohl ,  Andras Miklos

IPC: G01N7/02

CPC classification number: G01N29/348 ,  G01N1/405 ,  G01N21/1702 ,  G01N29/2425 ,  G01N29/4481 ,  G01N2021/1704 ,  G01N2291/021 ,  G01N2291/0423

Abstract: A gas detector with a selectively adsorbing surface (3) and an acoustic measuring cell (5) is presented. The detector is characterized in that the selectively adsorbing surface (3) and the acoustic measuring cell (5) can be arranged with respect to one another such that gases desorbed by means of thermal desorption from the adsorbing surface (3) reach the acoustic measuring cell (5) and there trigger a pressure wave that can be measured by one or more acoustic pick-ups (13, 14), in particular microphones, which are arranged in the acoustic measuring cell (5). Furthermore, a corresponding method is provided. The detector is particularly suitable for measuring contaminants in interior spaces and ventilation systems.

Abstract translation: 提出了具有选择性吸附表面（3）和声测量单元（5）的气体检测器。 检测器的特征在于，选择性吸附表面（3）和声学测量单元（5）可以相对于彼此布置，使得通过从吸附表面（3）的热解吸解吸的气体到达声学测量单元 （5），并且触发可以由布置在声测量单元（5）中的一个或多个声拾取器（13,14）特别是麦克风测量的压力波。 此外，提供了相应的方法。 检测器特别适用于测量内部空间和通风系统中的污染物。

公开(公告)号：US20100103425A1

公开(公告)日：2010-04-29

申请号：US12593163

申请日：2008-03-27

Applicant: Andras Miklos ,  Judit Angster

Inventor： Andras Miklos ,  Judit Angster

IPC: G01N21/69 ,  G01N21/00

CPC classification number: G01N29/2425 ,  F01N2560/05 ,  G01N21/1702 ,  G01N29/228 ,  G01N2015/0046 ,  G01N2021/1704 ,  G01N2291/0217 ,  G01N2291/02408 ,  G01N2291/02809 ,  G01N2291/045

Abstract: The invention relates to a photoacoustic detector for measuring the concentration of fine dust particles, especially carbon particles in gas, comprising a pulsed light source for providing excitation light, wherein a size distribution of the fine dust particles can be determined by changing the pulse length and/or the pulse repetition rate.

Abstract translation: 本发明涉及一种光声检测器，用于测量微细尘埃颗粒，特别是气体中的碳颗粒的浓度，包括用于提供激发光的脉冲光源，其中细粉尘颗粒的尺寸分布可以通过改变脉冲长度和 /或脉冲重复率。

公开(公告)号：US20090038375A1

公开(公告)日：2009-02-12

申请号：US11994056

申请日：2006-06-26

Applicant: Klaus BREUER ,  Andrew H. Kung ,  Andras Miklos ,  Judit Angster ,  Klaus Sedlbauer

Inventor： Klaus BREUER ,  Andrew H. Kung ,  Andras Miklos ,  Judit Angster ,  Klaus Sedlbauer

IPC: G01N29/02

CPC classification number: G01N21/1702 ,  G01N2021/1704 ,  G01N2291/02809

Abstract: The invention relates to a photoacoustic detector including an acoustically open measuring area which is not completely surrounded by a housing. The detector includes an arrangement for introducing excitation light into the measuring area, such that the excitation light can be absorbed by absorbent materials which are located in the measuring area and which are used to produce acoustic energy. The invention also relates to a detector which includes at least one acoustic sensor and an arrangement is provided in order to concentrate the acoustic energy, in order to reach a local maximum of the acoustic pressure on at least one position. The at least one sensor is arranged in the vicinity of the at least one position, whereon the local maximum of the produced acoustic pressure is present or can be produced. The invention also relates to an associated method.

Abstract translation: 本发明涉及一种光声检测器，包括未被壳体完全包围的声学测量区域。 检测器包括用于将激发光引入测量区域的布置，使得激发光可以被位于测量区域中并被用于产生声能的吸收材料吸收。 本发明还涉及一种检测器，其包括至少一个声学传感器，并且提供了一种用于集中声能的装置，以便在至少一个位置上达到声压的局部最大值。 所述至少一个传感器布置在所述至少一个位置附近，其中存在或可以产生产生的声压的局部最大值。 本发明还涉及一种相关联的方法。