Upgraded Fiber-Optic Sensor System for Dynamic Strain Measurement in Spallation Neutron Source
IEEE Sensors Journal(2021)
摘要
We describe an upgraded fiber-optic sensor system and its performance in measuring the dynamic strains in a mercury target of the Spallation Neutron Source (SNS). Strains result from dynamic pressure waves in the stainless-steel mercury target induced by short (~700 ns), intense (up to 23.3 kJ), high-energy (~1 GeV) proton pulses. In the upgraded sensor system, the output of each sensor head is in...
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关键词
Sensors,Optical fiber sensors,Optical fiber couplers,Optical fiber polarization,Strain measurement,Strain,Optical interferometry
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