OverviewThe Enviko SK-AB vibrating wire anchor bolt load cell, also called a bolt stress meter, measures bolt load and its changes online. It is used to monitor bolt preload and current stress in shield tunnel segment bolts, steel structure bolts and post-tensioned prestressed anchors. A built-in temperature sensor records ambient temperature, and a smart chip can be added on request.Key FeaturesDirect measurement of bolt preload, more accurate than controlling preload by