<p>Fiber optic sensors employ a high brightness light source such as a fiber optic supercontinuum source, multiplexed superluminescent light emitting diodes, or a broadband tunable laser diode. Light is delivered to the measurement location via fiber optics and sensor optics directs infrared radiation onto material the being monitored that is located in a hostile environment. A disperse element is positioned in the detection beam path in order to separate the wavelengths and to perform spectral analysis. A spectral analysis of the radiation that emerges from the sheet yields information on a plurality of parameters for the material. For papermaking applications, the moisture level, temperature and cellulose content in the paper can be obtained.</p>
申请公布号
WO2011003190(A1)
申请公布日期
2011.01.13
申请号
WO2010CA01055
申请日期
2010.07.06
申请人
HONEYWELL ASCA, INC.;HARAN, FRANK, MARTIN;MACHATTIE, ROSS, K.;BESELT, RONALD, E.
发明人
HARAN, FRANK, MARTIN;MACHATTIE, ROSS, K.;BESELT, RONALD, E.