发明名称 |
Method and apparatus for measuring density profiles in microscopic tube flow |
摘要 |
Particle distribution in a fluid flowing through a microscopic tube is achieved by flowing the fluid vertically-downward through a transparent capillary tube and passing light through the flowing fluid. A linear array of photodiodes responds to light passing through the fluid by registering a series of signals representing the linear projection of particles passing through the plane defined by the light source and the photodiode array. The fluid is supplied from a reservoir which can be selectively pressurized by a gas to control the egress flow rate of fluid. A syringe serves as the egress path from the reservoir and a rotatable stirring rod is disposed in the syringe to stir the egressing fluid. The syringe feeds a disposable assembly which includes a hypodermic needle feeding the capillary tube which is mounted between a microscope slide and cover in the path of the sensing light.
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申请公布号 |
US4576477(A) |
申请公布日期 |
1986.03.18 |
申请号 |
US19820390876 |
申请日期 |
1982.06.22 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE DEPARTMENT OF HEALTH AND HUMAN SERVICES |
发明人 |
CORBET, AARON B.;HOLLIGER, CHRISTOPH;STRUL, BRUNO |
分类号 |
G01N15/02;G01N21/03;G01N21/59;(IPC1-7):G01N33/48;G01N21/05 |
主分类号 |
G01N15/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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