发明名称 |
Method and apparatus for automatic flow-through digital refractometer |
摘要 |
Method and apparatus for determining the concentration of dissolved solids in a sample solution. A refractometer has an enclosing opaque housing, a light source directing a substantially collimated monochromatic light beam through, and a hollow transparent-walled prismatic container adopted for holding a liquid solution to be tested. A light sensor is disposed in the refracted path of the light beam and responds to the exact refraction of the beam caused by passing through the liquid solution. A display is actuated by the light sensor and digitally displays the exact refraction as a function of the concentration of dissolved solids in the liquid sample. Method and apparatus are provided for determining the presence of a sufficient amount of the sample and for automatically commencing the testing in the refractometer.
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申请公布号 |
US4381895(A) |
申请公布日期 |
1983.05.03 |
申请号 |
US19800125549 |
申请日期 |
1980.02.28 |
申请人 |
BIOVATION, INC. |
发明人 |
HUGHES, LEONARD A.;FLAVELL, EVAN R.;WILLMAN, BENJAMIN C. |
分类号 |
G01N21/41;(IPC1-7):G01N21/41 |
主分类号 |
G01N21/41 |
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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