Design, calibration and operational error analysis of a heat flux sensor Aymen Zribi, Sylvie Bégot, François Lanzetta and Magali Barthès Eur. Phys. J. Appl. Phys., 82 1 (2018) 11001 Published online: 08 June 2018 DOI: 10.1051/epjap/2018170295