Similar title to Yam, Sui Pan and Brodzeli, Zourab and Wade, Scott A and Rollinson, Claire and Baxter, Gregory W and Collins, Stephen F (2009) Use of first-order diffraction wavelengths corresponding to dual-grating periodicities in a single fibre Bragg grating for simultaneous temperature and strain measurement. Measurement Science and Technology, 20 (3). 034008. ISSN 0957-0233