Fusion Splicing. Fusion splicing is the process of fusing or welding two fibers together usually by an electric arc. Fusion splicing is the most widely used method of splicing as it provides for the lowest loss and least reflectance, as well as providing the strongest and most reliable joint between two fibers. Virtually all singlemode splices are fusion.
Disc Brakes. A disc brake system consists of a brake disc, a brake calliper and brake pads. When the brake pedal is applied, pressurised hydraulic fluid squeezes the brake pad friction material against the surface of the rotating brake disc. The result of this contact produces friction which enables the vehicle to slow down or stop.
A mechanic can check the thickness of the pads and the condition of the brake hardware to spot wear. Many cars have built-in wear sensors that scrape against a brake disc when the linings needed replacing.f it comes on while driving, that probably means your brake system is low on fluid because of a leak or a problem with the brake master cylinder. Note that this is not the same warning light that comes on when you apply the hand-or foot-operated parking brake. All cars and light trucks also have front disc brakes.