How to Bond a Strain Gauge into a Bolt
Bonding a strain gauge into a bolt that measures the tightening stress is difficult. Using a special strain gauge, a simplified solution can be provided for measuring the axial load on bolt elements.
This article provides instructions on installing and using the 1-LB11-3/120ZW strain gauge from HBM. This strain gauge enables the measurement by embedding it in a hole drilled through the head of the bolt. The installation of this gauge differs from the conventional method of installing a flat strain gauge.