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    • 11. 发明授权
    • Method and apparatus for measuring sound velocity in liquid
    • 用于测量液体中声速的方法和装置
    • US5936160A
    • 1999-08-10
    • US10593
    • 1998-01-22
    • Harri Salo
    • Harri Salo
    • G01H5/00
    • G01H5/00
    • A method and apparatus for measuring sound velocity in a liquid, said method comprising the transmitting of a sound pulse or a group of sound pulses to the liquid to be measured and the measuring of the transit time of the sound pulse or the group of sound pulses in the liquid to be measured. To improve the accuracy of measurement, the sound pulse or the group of sound pulses is simultaneously transmitted with one and the same transmitter both to the liquid to be measured and to the reference material in which sound velocity is previously known. The sound pulse or the group of sound pulses arriving from the liquid to be measured and from the reference material is received and the time interval is measured with one and the same measuring means.
    • 一种用于测量液体中的声速的方法和装置,所述方法包括将声脉冲或一组声脉冲发送到待测液体,以及测量声脉冲或声脉冲组的传播时间 在要测量的液体中。 为了提高测量的准确度,声音脉冲或声脉冲组同时被传输到同一发射机到待测量的液体和声速先前已知的参考材料。 接收从待测液体和参考物质到达的声脉冲或声脉冲组,并用同一测量装置测量时间间隔。
    • 18. 发明申请
    • STRUCTURE OF MEASUREMENT WINDOW
    • 测量窗口结构
    • US20110075141A1
    • 2011-03-31
    • US12892415
    • 2010-09-28
    • Harri SALO
    • Harri SALO
    • G01N21/01
    • G01N21/01G01N21/0317
    • A measurement window structure is disclosed for an optical process measurement device. The measurement window structure can include a measurement window made of an optical material and having a measurement surface that is arranged to be placed into a process solution, a sealing surface formed to a frame structure of the optical process measurement device and facing the process solution, the measurement window made of an optical material being arranged to press against the sealing surface, and an attaching device or mechanism for pressing the measurement window made of an optical material against the sealing surface and for attaching it to the frame structure. The sealing surface formed to the frame structure can be a rotationally symmetrical surface and the surface pressing against the sealing surface formed to the frame structure of the measurement window made of an optical material can be a rotationally symmetrical surface.
    • 公开了一种用于光学过程测量装置的测量窗结构。 测量窗口结构可以包括由光学材料制成的测量窗口,并且具有布置成放置在处理溶液中的测量表面,形成于光学测量装置的框架结构并面向工艺溶液的密封表面, 由光学材料制成的测量窗被设置成压靠密封表面,以及用于将由光学材料制成的测量窗口压靠在密封表面上并用于将其附接到框架结构的附接装置或机构。 形成到框架结构的密封面可以是旋转对称的表面,并且压靠形成于由光学材料制成的测量窗的框架结构的密封表面的表面可以是旋转对称的表面。