| 液晶光闸在火灾探测中的应用 |
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| 引用本文： | 吴龙标,宋卫国,卢结成.液晶光闸在火灾探测中的应用[J].光学技术,1999(1). |
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| 作者姓名： | 吴龙标 宋卫国 卢结成 |
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| 作者单位： | 中国科技大学火灾科学国家重点实验室,合肥,230026 |
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| 摘 要： | 实验发现，液晶片在不透光状态下仍能透过红外光；正常使用条件下的黑白ＣＣＤ摄像机对近红外光也有响应。将液晶片放置在摄像机前就能获得具有强烈近红外光的火焰图像，通过对红外图像的处理，即可识别真假火灾，达到火灾探测的目的。
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| 关 键 词： | 火灾探测 液晶光闸 近红外光谱特性 |
Application of liquid crystal photic gate 0in fire detection |
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| WU Longbiao,SONG Weiguo,LU Jiecheng.Application of liquid crystal photic gate 0in fire detection[J].Optical Technique,1999(1). |
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| Authors: | WU Longbiao SONG Weiguo LU Jiecheng |
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| Abstract: | It is found in experiments that liquid crystal, in the opaque status, allows infrared ray to pass through; and normal black and white camera has response to close infrared ray. Fire images composed of infrared rays radiation information can be got by placing a piece of liquid crystal in front of a camera. Based on these images, image processing can be done to distinguish fire and other confusion sources. |
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| Keywords: | fire detection liquid crystal photic gate near infrared characteristics |
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