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Apparatus and method for visualization of particles suspended in a fluid and fluid flow patterns using ultrasound

一种流体、微粒的技术，应用在使用声波/超声波/次声波进行材料分析、液体/流体固体测量、测量装置等方向，能够解决传统技术不起作用等问题

Inactive Publication Date: 2013-07-10
LOS ALAMOS NATIONAL SECURITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional techniques do not work in the case of detecting the presence of particulate matter in liquids flowing through transparent or opaque pipes where the liquid is opaque, such as crude oil

Method used

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  • Apparatus and method for visualization of particles suspended in a fluid and fluid flow patterns using ultrasound
  • Apparatus and method for visualization of particles suspended in a fluid and fluid flow patterns using ultrasound
  • Apparatus and method for visualization of particles suspended in a fluid and fluid flow patterns using ultrasound

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Embodiment Construction

[0023] Briefly, embodiments of the present invention include devices and methods for non-invasively detecting and visualizing the presence of particulate matter suspended in stationary or flowing fluids and fluid flow patterns in pipes, tubes, conduits or other vessels. Ultrasonic scanning and scattering of sound from particles in the fluid produces a real-time image of the particles or flow patterns in the fluid. Images were taken at a standard video rate of 30 frames per second, and the particles were tracked over time using commercial video tracking software. The frame rate depends on the depth within the liquid to be probed, the longer the path length, the slower the frame rate will be required. The present invention allows imaging of nanometer-sized particles, including DNA strands.

[0024] The scanner used consists of a mechanical shaker (also known as a mechanical sector scanner) which is guided in an oscillating manner over a selected angle (as an example, approximat...

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Abstract

An apparatus and method for real-time visualization of particulate matter suspended in a static or flowing fluid and fluid flow patterns in a pipe, tube, conduit, or other container, are described. Ultrasonic scanning and detection of scattered sound from the particles in the fluid create a real-time image of the particles, or of flow patterns in the liquid. Images were taken at a standard video rate of 30 frames per second, and the particles were tracked as a function of time using commercial video tracking software. A mechanical wobbler directs a piezoelectric transducer over a chosen angle in an oscillatory manner. The transducer is operated in a pulse-echo mode wherein the same transducer detects the return signal from the target region through which particles are passing and / or a flow is present. The pulse-echo measurements are made rapidly and continuously during a single sweep of the transducer over the chosen angle.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of U.S. Provisional Patent Application No. 61 / 379,888, "Method And Apparatus For Visualization Of Particles And Flow Patterns Using Ultrasound," filed September 3, 2010, which is incorporated by reference in its entirety for its disclosure and teaching. into this article. [0003] Statement on Federal Rights [0004] This invention was made with Government support under Contract No. DE-AC52-06NA25396 awarded by the US Department of Energy. The government has certain rights in this invention. field of invention [0005] The present invention relates generally to detecting particles in fluids, and more particularly to apparatus and methods for measuring the size, concentration and size distribution of particles in fluids and for determining fluid flow patterns. Background technique [0006] It is often desirable to detect particles in fluids and determine their size distribution. M...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/66G01F1/7082
CPCG01F1/66G01F1/74G01F1/7082G01N29/024G01N29/262G01F1/662
Inventor D·N·森哈C·F·奥斯特豪特C·潘泰亚
Owner LOS ALAMOS NATIONAL SECURITY
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