Design of Novel FBG-Based Sensor of Differential Pressure with Magnetic Transfer
Guohui Lyu,
Guohang Che,
Junqing Li,
Xu Jiang,
Keda Wang,
Yueqiang Han,
Laixu Gao
Affiliations
Guohui Lyu
Research Center for Fiber Optic Sensing Technology National Local Joint Engineering, Electronic Engineering College, Heilongjiang University, Harbin 150080, China
Guohang Che
Research Center for Fiber Optic Sensing Technology National Local Joint Engineering, Electronic Engineering College, Heilongjiang University, Harbin 150080, China
Junqing Li
Physics Department, Harbin Institute of Technology, Harbin 150001, China
Xu Jiang
College of Information Science and Technology, Heilongjiang University, Harbin 150080, China
Keda Wang
Research Center for Fiber Optic Sensing Technology National Local Joint Engineering, Electronic Engineering College, Heilongjiang University, Harbin 150080, China
Yueqiang Han
Research Center for Fiber Optic Sensing Technology National Local Joint Engineering, Electronic Engineering College, Heilongjiang University, Harbin 150080, China
Laixu Gao
Research Center for Fiber Optic Sensing Technology National Local Joint Engineering, Electronic Engineering College, Heilongjiang University, Harbin 150080, China
In this paper, a differential pressure sensor with magnetic transfer is proposed, in which the non-electric measurement based on the fiber Bragg grating (FBG) with the position limiting mechanism is implemented without the direct contact of the sensing unit with the measuring fluid. The test shows that the designed sensor is effective for measuring differential pressure in the range of 0~10 kPa with a sensitivity of 0.0112 nm/kPa, which can be used in environments with high temperature, strong corrosion and high overload measurements.
