发明授权
US08520472B2 Compact laser sensors and monitoring systems including such sensors
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紧凑型激光传感器和监控系统,包括这样的传感器
- 专利标题: Compact laser sensors and monitoring systems including such sensors
- 专利标题(中): 紧凑型激光传感器和监控系统,包括这样的传感器
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申请号: US11917130申请日: 2006-06-13
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公开(公告)号: US08520472B2公开(公告)日: 2013-08-27
- 发明人: Joseph Murray , Gregg Johnson
- 申请人: Joseph Murray , Gregg Johnson
- 申请人地址: US VA Fairfax
- 专利权人: 3 Phoenix, Inc.
- 当前专利权人: 3 Phoenix, Inc.
- 当前专利权人地址: US VA Fairfax
- 代理机构: Manatt, Phelps & Phillips, LLP
- 国际申请: PCT/US2006/023010 WO 20060613
- 国际公布: WO2006/135888 WO 20061221
- 主分类号: G01H9/00
- IPC分类号: G01H9/00 ; G01L1/24
摘要:
Improved laser sensors (10) employing doped laser crystals (24) for transducing output proportional to forces impinging upon the sensors. The disclosed sensors are compact, low powered and may be constructed relatively inexpensively from readily available materials. The disclosed sensors eliminate the need for costly, optical power-sapping fiber connections at the laser crystals. According to certain embodiments, the disclosed sensors are configured for local recovery of output signals using conventional digital telemetry. According to other embodiments, the sensors generate output through a dense wavelength division multiplexing (DWDM) laser (28), thereby allowing remote recovery without the need for frequency division multiplexing and issues involved with preloading the sensors to produce beat frequencies in unique bands.
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