发明授权
- 专利标题： System for spectroscopic carpet identification
- 专利标题（中）： 光谱地毯识别系统
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申请号： US11769488申请日： 2007-06-27
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公开(公告)号： US07671981B1公开(公告)日： 2010-03-02
- 发明人: Walid A. Atia , Dale C. Flanders , Robert K. Jenner , Lawrence P. McDermott , Bartley C. Johnson
- 申请人： Walid A. Atia , Dale C. Flanders , Robert K. Jenner , Lawrence P. McDermott , Bartley C. Johnson
- 申请人地址： US MA Billerica
- 专利权人： Axsun Technologies, Inc.
- 当前专利权人： Axsun Technologies, Inc.
- 当前专利权人地址： US MA Billerica
- 代理机构： Houston Eliseeva LLP
- 主分类号： G01N21/00
- IPC分类号： G01N21/00
摘要：
A tunable laser spectroscopic carpet identification system comprises a tunable laser spectroscopy system for generating a tunable signal that is transmitted to a carpet sample. The system detects the tunable signal after interaction with the carpet sample so that an analyzer is able to relate a spectral response of the carpet sample to a chemical composition of the carpet sample. In one example, the spectroscopy system comprises a laser cavity in which the tunable signal is generated, a semiconductor gain medium in the laser cavity, and a tunable element for controlling a wavelength of tunable signal generated in the laser cavity. To deal with variations in water content, the analyzer estimates a water content of the carpet sample using the spectral response of the carpet sample and then determines the chemical composition of the carpet sample in part based on the estimate of the water content.