CN203769857U - 一种分布式激光瓦斯准无源报警监测装置 - Google Patents
一种分布式激光瓦斯准无源报警监测装置 Download PDFInfo
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- CN203769857U CN203769857U CN201420182841.4U CN201420182841U CN203769857U CN 203769857 U CN203769857 U CN 203769857U CN 201420182841 U CN201420182841 U CN 201420182841U CN 203769857 U CN203769857 U CN 203769857U
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- laser gas
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- 238000012806 monitoring device Methods 0.000 title abstract 5
- 239000000523 sample Substances 0.000 claims abstract description 35
- 239000013307 optical fiber Substances 0.000 claims abstract description 15
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 230000005540 biological transmission Effects 0.000 claims abstract description 5
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 20
- 230000003287 optical effect Effects 0.000 claims description 20
- 238000004880 explosion Methods 0.000 claims description 5
- 230000006870 function Effects 0.000 claims description 4
- 230000005284 excitation Effects 0.000 claims description 3
- 239000000725 suspension Substances 0.000 claims description 3
- 230000008447 perception Effects 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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CN201420182841.4U CN203769857U (zh) | 2014-04-16 | 2014-04-16 | 一种分布式激光瓦斯准无源报警监测装置 |
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CN201420182841.4U CN203769857U (zh) | 2014-04-16 | 2014-04-16 | 一种分布式激光瓦斯准无源报警监测装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114567373A (zh) * | 2022-04-27 | 2022-05-31 | 高勘(广州)技术有限公司 | 矿井监控方法、装置、设备及存储介质 |
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CN114567373A (zh) * | 2022-04-27 | 2022-05-31 | 高勘(广州)技术有限公司 | 矿井监控方法、装置、设备及存储介质 |
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C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Distributed quasi passive laser gas alarming and monitoring device Effective date of registration: 20160414 Granted publication date: 20140813 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: BEIJING HANGXING NETWORKING CO.,LTD. Registration number: 2016990000295 |
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PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20180601 Granted publication date: 20140813 Pledgee: Beijing technology intellectual property financing Company limited by guarantee Pledgor: BEIJING HANGXING NETWORKING CO.,LTD. Registration number: 2016990000295 |
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PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
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Granted publication date: 20140813 |
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CF01 | Termination of patent right due to non-payment of annual fee |