Conventional single-core fiber-optic cables require a minimum bending radius to achieve a 90(degree) turn without reducing the beam diameter and degrading the sensing distance. 12.5 mm is typical. Result: large cable loops that are subject to snagging, pulling, and crushing of the cable by passing objects.
Although competitors have cable with a 2-mm bending radius, Omron's multi-core fiber optic cables achieve a 1-mm bending radius by bundling more than 200 fiber-optic strands as the core. When the cable is bent into a sharp angle, the individual strands shift around within the sheath. This prevents kinking and tensioning damage when the cable is installed with tie wraps.
Omron Electronics Inc., One East Commerce Dr., Schaumburg, IL 60173; Tel: (800) 55-OMRON.