发明名称 |
Method and apparatus for measuring pH of medium solution |
摘要 |
<p>A pH measuring method includes: illuminating a medium solution, which includes: a first material; and a second material, with a plurality of light beams, which includes: a first light beam, a wavelength of which corresponds to a first absorption peak; a second light beam, a wavelength of which corresponds to a second absorption peak or a second convergence point; a third light beam, a wavelength of which corresponds to a third absorption peak or a third convergence point; and a fourth light beam, a wavelength of the fourth light beam at which an absorbance of at least one of the first and second materials is converged irrespective of a pH; receiving transmitted or reflected light beams of the first to fourth light beams; measuring absorbances at the wavelengths of the received light beams respectively; and calculating a pH of the medium solution based on the absorbances.
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申请公布号 |
EP2505992(A3) |
申请公布日期 |
2013.05.22 |
申请号 |
EP20120162312 |
申请日期 |
2012.03.30 |
申请人 |
NIHON KOHDEN CORPORATION;TOKYO WOMEN'S MEDICAL UNIVERSITY |
发明人 |
OURA, MITSUHIRO;KUBO, HIROTSUGU;TAKEDA, SUNAO;OKANO, TERUO;SHIMIZU, TATSUYA |
分类号 |
G01N21/80;C12M1/34;G01N21/31;G01N31/22;G01N33/84 |
主分类号 |
G01N21/80 |
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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