发明授权
US4829838A Method and apparatus for the measurement of the size of particles
entrained in a gas
失效
用于测量夹带在气体中的颗粒尺寸的方法和装置
- 专利标题： Method and apparatus for the measurement of the size of particles entrained in a gas
- 专利标题（中）： 用于测量夹带在气体中的颗粒尺寸的方法和装置
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申请号： US75901申请日： 1987-07-20
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公开(公告)号： US4829838A公开(公告)日： 1989-05-16
- 发明人: Roland Clift , Jonathan P. K. Seville , Andrew H. J. Take
- 申请人： Roland Clift , Jonathan P. K. Seville , Andrew H. J. Take
- 申请人地址： GB2 London
- 专利权人： National Research Development Corporation
- 当前专利权人： National Research Development Corporation
- 当前专利权人地址： GB2 London
- 优先权： GBX8617568 19860718
- 主分类号： G01N15/00
- IPC分类号： G01N15/00 ; G01N15/02 ; G01N15/14
摘要：
Apparatus for measuring the size of particles entrained in a gas comprises an optical fibre probe having a hemispherical end and insertable into a stream of gas bearing entrained particles to create a stagnation point in the flowing gas, a Doppler anemometer to measure particle velocity at a point upstream of the stagnation point and a computer-controlled burst counter to determine from the particle velocity measurements the distribution by number of aerodynamic diameter of the particles.
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