A fiber optic sensor for measuring static pressure includes a cartridge
housing having an end that is exposed to the atmosphere, a thin flexible
membrane covering the exposed end of the cartridge housing such that the
flexible membrane has an exposed side and a protected side, and a fiber
bundle disposed within the cartridge housing, the fiber bundle comprising
at least one fiber having a first polished end for transmitting light
toward the membrane and a second end for being coupled to a light source
or a receiver, the housing arranged to maintain the membrane at a
distance from the first end of the fiber in a direction along a fiber
axis, with free space between the first fiber end and the protected side
of the flexible membrane.