Procédé et dispositif pour déterminer la masse volumique d'un volume élémentaire de matière
    41.
    发明公开
    Procédé et dispositif pour déterminer la masse volumique d'un volume élémentaire de matière 失效
    Verfahren und Vorrichtung zur Bestimmung der Dichte eines Materien-Volumenelements。

    公开(公告)号:EP0337831A1

    公开(公告)日:1989-10-18

    申请号:EP89400777.2

    申请日:1989-03-20

    IPC分类号: G01N23/203 G01N9/24

    CPC分类号: G01N23/203 G01N9/24

    摘要: - Dispositif destiné à fournir une indication sur la masse volumique du contenu d'un volume élémentaire, comportant une source directionnelle de rayonnement X ou γ (1) et un détecteur directionnel photo-électronique de photons (5).
    - Selon l'invention, ce dispositif est caractérisé en ce que ladite source et/ou ledit détecteur sont montés rotatifs sur un support commun (12), autour d'un axe (13 ou 14) orthogonal au plan défini par l'axe (4) du faisceau de rayonnement (2) émis par ladite source (1) et par l'axe (7) du canal de réception (10) dudit détecteur (5) et en ce que sont prévus des moyens (46 à 49) pour déplacer ledit support commun (57) suivant une direction (F4) orthogonale à l'axe de rotation (13, 14) de ladite source et/ou dudit détecteur.

    摘要翻译: 该装置旨在给出基本体积的内容物的密度的指示,并且与定向光电子光子检测器(5)一起包括X射线或γ射线的定向源(1)。 上述源极和/或检测器被安装成使得它们可以在共同的支撑件(12)上围绕轴线(13或14)旋转,该轴线(13或14)与由轴线(4)的轴线(4)限定的平面成直角 由所述源(1)发射的辐射束(2)和所述检测器(5)的接收通道(10)的轴线(7)。 提供装置(46至49)以沿着与所述源和/或所述检测器的旋转轴线(13,14)成直角的方向(F4)移动所述公共支撑件(57)。 ... ...

    Apparatus for measuring density of a finely divided solid carbon-containing fuel flow
    42.
    发明公开
    Apparatus for measuring density of a finely divided solid carbon-containing fuel flow 失效
    Vorrichtung zur Messung der Dichte eines feine Kohlenstoffteilchen enthaltenden,Brennstoffflusses。

    公开(公告)号:EP0330262A2

    公开(公告)日:1989-08-30

    申请号:EP89200365.8

    申请日:1989-02-14

    IPC分类号: G01N9/24 G01N23/12

    CPC分类号: G01N23/12 G01N9/24

    摘要: For a proper solid fuel flow measurement the velocity and the density of the flow must be known. The density can be determined very accurately with a gamma-­ray densitometer. In order to minimize the effect of the tube wall the gamma-ray source (7) and -counter (8) are positioned such that the rays "look" through a longitudinal section of the tube taking care that the disturbing effects of the tube bends are minimized. This is accomplished by:

    1) using symmetrical bends (5a, 5b) for connecting a straight fuel supply pipe (6) with a straight fuel measuring pipe (6a) and connecting the latter with a straight fuel exit pipe (6b), and advantageously
    2) using parallel fuel supply and exit pipes (6, 6b).

    摘要翻译: 对于适当的固体燃料流量测量,必须知道流速和密度。 可以用γ射线密度计非常精确地确定密度。 为了最小化管壁的影响,伽马射线源(7)和对照器(8)被定位成使得射线通过管的纵截面“看”,注意管弯曲的干扰作用 被最小化。 这是通过以下方式实现的:1)使用对称的弯曲部(5a,5b),用于将直的燃料供给管(6)与直的燃料测量管(6a)连接并将其连接到直的燃料出口管(6b) 2)使用平行燃料供应和出口管(6,6b)。 一个

    PACKAGED PRESSURE SENSOR DEVICE AND CORRESPONDING METHOD FOR DETECTING THE PRESENCE OF FOREIGN MATERIAL

    公开(公告)号:EP4242619A1

    公开(公告)日:2023-09-13

    申请号:EP23154620.1

    申请日:2023-02-02

    摘要: A pressure sensor device (1) has: a pressure detection structure (2) provided in a first die (4) of semiconductor material; a package (20), configured to internally accommodate the pressure detection structure in an impermeable manner, the package having a base structure (21) and a body structure (22), arranged on the base structure, with an access opening (30) in contact with an external environment and internally defining a housing cavity (23), in which the first die (4) is arranged covered with a coating material (32). A piezoelectric transduction structure (35), of a ultrasonic type, is accommodated in the housing cavity, in order to allow detection of foreign material (42) above the coating material and within the package. In particular, the piezoelectric transduction structure (35) is integrated in the first die (4), which comprises a first portion (4'), wherein the pressure detection structure (2) is integrated, and a second portion (4"), separate and distinct from the first portion (4'), wherein the piezoelectric transduction structure (35) is integrated.

    LASER MODULE FOR FLOW CYTOMETRY
    50.
    发明公开

    公开(公告)号:EP3904942A1

    公开(公告)日:2021-11-03

    申请号:EP20172455.6

    申请日:2020-04-30

    申请人: Cobolt AB

    IPC分类号: G02B26/08 G01N9/24

    摘要: A method of controlling a position at which a laser beam used in flow cytometry impinges on a flow cell is provided. The method comprises directing the laser beam through a first and a second prism. The method further comprises controlling a temperature of at least one of said first and second prisms, thereby controlling the position at which said laser beam impinges on the flow cell. Further, a module and an arrangement for use in flow cytometry is provided.