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Phase difference demodulation type optical fiber displacement measuring method, involves collecting electrical signals, and displaying demodulation result of optical signal on touch screen by control and signal processing circuit. 专利
申请日期: 2018-01-01, 公开日期: 2018-05-15
作者:  CHEN K YU Q
收藏  |  浏览/下载:3/0  |  提交时间:2019/12/02
Pulse attenuation analysis based low-permeability hydrate sediment permeability measuring device, has difference meter connected with computer through digital module, and pressure sensor fixed at upstream end of reaction container. 专利
申请日期: 2018-01-01, 公开日期: 2018-05-18
作者:  SONG Y YANG M LI K LIU W ZHAO J ZHA
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/02
Optical fiber F-P cavity-type acoustic wave sensor demodulating method, involves performing inversion calculation process of absolute optical path and wave signal to obtain difference between sound wave amplitude unit and display unit. 专利
申请日期: 2018-01-01, 公开日期: 2018-04-13
作者:  YU Q YU Z CHEN K
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/02


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