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LOW ETENDUE LIGHT SOURCE FOR FIBER OPTIC SENSORS IN HIGH TEMPERATURE ENVIRONMENTS
LOW ETENDUE LIGHT SOURCE FOR FIBER OPTIC SENSORS IN HIGH TEMPERATURE ENVIRONMENTS
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机译:高温环境中用于光纤传感器的低掺量光源
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摘要
A fiber optic sensor to determine a property in an environment with a temperature exceeding 150 degrees Celsius includes a light source to emit broadband light, an etendue of the light source being less than 1000 square micro meter-steradians (μm2 sr), and an optical fiber to carry incident light based on the broadband light and a reflection resulting from the incident light. A photodetector detects a resultant light based on the reflection and outputs an electrical signal, and a processor processes the electrical signal from the photodetector to determine the property.
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