燕山大学学报
燕山大學學報
연산대학학보
JOURNAL OF YANSHAN UNIVERSITY
2001年
2期
156-158
,共3页
光纤传感器%温度测量%荧光强度%稀土荧光材料。
光纖傳感器%溫度測量%熒光彊度%稀土熒光材料。
광섬전감기%온도측량%형광강도%희토형광재료。
介绍一种基于稀土荧光材料(Y2O2S:Eu)温度-荧光特性的光纤荧光温度传感器。由紫外汞灯发出的紫外光被调制成脉冲激励光,通过光纤传输激发探头处的荧光材料产生荧光。通过测量两个峰值荧光信号的比值得到输出与温度的关系,温度测量误差小于0.5C。实验结果表明,该测温系统能够有效地消除光源不稳定及测量通道中光强变化对测量结果的影响。
介紹一種基于稀土熒光材料(Y2O2S:Eu)溫度-熒光特性的光纖熒光溫度傳感器。由紫外汞燈髮齣的紫外光被調製成脈遲激勵光,通過光纖傳輸激髮探頭處的熒光材料產生熒光。通過測量兩箇峰值熒光信號的比值得到輸齣與溫度的關繫,溫度測量誤差小于0.5C。實驗結果錶明,該測溫繫統能夠有效地消除光源不穩定及測量通道中光彊變化對測量結果的影響。
개소일충기우희토형광재료(Y2O2S:Eu)온도-형광특성적광섬형광온도전감기。유자외홍등발출적자외광피조제성맥충격려광,통과광섬전수격발탐두처적형광재료산생형광。통과측량량개봉치형광신호적비치득도수출여온도적관계,온도측량오차소우0.5C。실험결과표명,해측온계통능구유효지소제광원불은정급측량통도중광강변화대측량결과적영향。
A fluorescence temperature sensor with optical fiber based on the characteristic of temperature-fluorescence of rare earth phosphor is described.The ultraviolet light from ultraviolet Hg lamp is modulated to pulsed light,exciting phosphor in probe to emit fluorescence through optical fiber.The relation between output and temperature is obtained by measuring the ratio of two peak fluorescence signal,making the measurement of temperatures to 0.5℃ precision.The experimental results show that this temperature measuring system can effectively decrease the influence of instability of light source and intensity variation in measuring channel on measurement results.