Transient hydraulic pressure sensor based on single-hole-dual-core fiber Bragg grating
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View abstract on PubMed
Summary
This summary is machine-generated.A new fiber-optic transient hydraulic pressure sensor using single-hole-dual-core fiber Bragg grating (SHDC-FBG) offers high precision for pipeline leak detection. This compact, cost-effective sensor performs comparably to traditional ones in harsh environments.
Area Of Science
- Optoelectronics
- Fiber Optic Sensing
- Materials Science
Background
- Transient hydraulic pressure monitoring is vital for petroleum and gas pipeline integrity.
- Existing sensing technologies face limitations in real-time, long-distance, and harsh environment applications.
Purpose Of The Study
- To develop and validate a novel fiber-optic transient hydraulic pressure sensor for pipeline leak detection.
- To investigate the sensing characteristics and performance of the proposed sensor.
Main Methods
- Fabrication of a fiber-optic transient hydraulic pressure sensor using single-hole-dual-core fiber Bragg grating (SHDC-FBG) via deep ultraviolet laser inscription.
- Modal field analysis and theoretical simulation of SHDC-FBG resonance wavelength.
- Experimental characterization of static and dynamic pressure sensing performance and comparison with conventional resistive sensors.
Main Results
- Simulation results closely matched experimental data, confirming pressure-induced refractive index changes.
- The SHDC-FBG sensor demonstrated a sensitivity of -5.4 pm/MPa over a 0-20 MPa range.
- The sensor's performance in leak detection was comparable to conventional resistive pressure sensors.
Conclusions
- The developed SHDC-FBG sensor is a viable and competitive technology for transient hydraulic pressure and pipeline leak detection.
- Its compact size, low cost, and electromagnetic immunity make it suitable for long-distance and harsh industrial environments.
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