Fibre optic pH modular sensor for liquid phase on the surface of textiles uses pH-sensitive indicator dye

摘要

An optic fibre pH sensor (15) has a sensor shaft (6) has a fibre-optic cable adapter (7) with polymer optic cable (9, 9a, 9b), a shrink sheath for the optic cable adapter (8), and a seal (10) with holding screw (11). The pH sensor (15) base adapter ring (4) has a sensor membrane (1), a reflector (2) and diaphragm (3) which are secured to the sensor shaft (6) by a locking nut (5).