Complex sentence: A load cell attached to the pin on disc tester is used to measure the evolution of the friction coefficient with sliding distance and sliding wear can be measured after the pin on disc test using a simple piece of equipment called a Calo tester.
Split into simpler sentences: A load cell attached to the pin on disc tester is used to measure the evolution of the friction coefficient with sliding distance. Sliding wear of the disc can be measured after the pin on disc test using a simple piece of equipment called a Calo tester.