Magnetic Field Sensor Based on a Tri-Microfiber Coupler Ring in Magnetic Fluid and a Fiber Bragg Grating

In this paper we propose and investigate a novel magnetic field sensor based on a Tri-microfiber coupler combined with magnetic fluid and a fiber Bragg grating (FBG) in a ring. A sensitivity of 1306 pm/mT was experimentally demonstrated in the range of magnetic fields from 0 to 15 mT. The reflection peak in the output spectrum associated with the FBG serves as a reference point allowing to avoid ambiguity in determining the spectral shift induced by the magnetic field. Due to its high sensitivity at low magnetic fields, the proposed structure could be of high interest in low field biosensing applications that involve a magnetic field, such as magnetic manipulation or separation of biomolecules

Confronting the productivity challenge in the high cost economy: evidence from the Australian oil and gas industry

This chapter reports research findings into the productivity challenge facing the Australian oil and gas industry. This industry has been experiencing cost overruns indicating a productivity decline that puts future projects and investment at risk. Using world-class survey methodologies developed by the Centre for Business Research at Cambridge University and adapted for the oil and gas industry, an evidence-based view on business decisions and conditions is provided and linked to performance. While many of the productivity challenges facing the Australian oil and gas industry are beyond immediate managerial control, this research shows that key productivity drivers are in the realm of the firm to influence. The research reported in this chapter shows that improvements in innovation, collaboration, and deeper competitive capabilities are the best levers to lift business productivity and to build a growth pathway for the future for this industry