发明名称 |
Method and apparatus for contactless optical measurement of the thickness of a hot glass body by optical dispersion |
摘要 |
The method measures the thickness of a hot glass body without direct contact with the glass body and is based on chromatic aberration. This method includes focusing a light beam from a light source on the hot glass body using a focusing device immediately after formation; conducting reflected light from the glass body into a spectrometer to obtain a reflected light spectrum; finding two wavelengths of the reflected light from the front side and the rear side of the glass body respectively at which reflected light intensities are maximum; determining the thickness of the glass body from the difference between the two wavelengths; maintaining the focusing device at a temperature below 120° C. during the measuring of the thickness and substantially preventing heat radiation from reaching the focusing device using at least one heat-blocking filter.
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申请公布号 |
US7414740(B2) |
申请公布日期 |
2008.08.19 |
申请号 |
US20050180063 |
申请日期 |
2005.07.13 |
申请人 |
SCHOTT AG |
发明人 |
WILKE THORSTEN;WITZMANN ANDRE;FEHR RUPERT;FADERL JOHANN;SCHMITTEL OTMAR;SCHAEFER ERNST-WALTER;FRITSCH CHRISTOPHER |
分类号 |
G01B11/06;G01B11/28;G01J3/28;G01N21/55 |
主分类号 |
G01B11/06 |
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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