This paper describes the detailed information about how to design the strain diaphragm used in the microbend fiber- optic pressure sensor. The parameters of the diaphragms and the good tested results are also shown.
Zichun Le, Zichun Le,
"Study of strain diaphragm used in the microbend fiber optic pressure sensor", Proc. SPIE 2895, Fiber Optic Sensors V, (24 September 1996); doi: 10.1117/12.252188; https://doi.org/10.1117/12.252188