发明名称 |
Method and refractometer for measuring the refractive index of a liquid and application to the measurement of the alcoholic strength of a must |
摘要 |
The refractometer consists of a tank 3 in which a sample 1 of the liquid is placed, a prism 1 with one of its faces 2 forming a wall of the tank, a lamp 5 illuminating a side face 8 of the prism and a fixed telescope 10. The telescope has two photoelectric cells 12a, 12b in its focal plane, mounted on a carriage 13 which is moved by a micrometer screw 14 incorporating a digital detector of angular displacement. Pulse counting is stopped when the signals emitted by the two cells are equal. Application to the measurement of the alcoholic strength of a natural must. <IMAGE>
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申请公布号 |
FR2536537(A1) |
申请公布日期 |
1984.05.25 |
申请号 |
FR19820019631 |
申请日期 |
1982.11.22 |
申请人 |
LAUGIER ALEXANDRE |
发明人 |
JEAN-CLAUDE OBERT, GEORGES BRUNO, FRANCIS LAUGIER ET ALEXANDRE LAUGIER;BRUNO GEORGES;LAUGIER FRANCIS;LAUGIER ALEXANDRE |
分类号 |
G01N21/43;(IPC1-7):G01N21/41;G01N33/14 |
主分类号 |
G01N21/43 |
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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