BoltSafe offers a force torque sensor that is specifically designed to measure and monitor bolt load in bolted constructions, both during assembly and over time. They can also be used to determine the right tool setting before tightening the bolts. This way the desired bolt load can be reached. The coefficient of friction can now be determined with a simple test rather than guessed. Without knowledge of this information, bolts could come loose or even break. Using BoltSafe sensors increases the control over the bolted construction and enhances safety. Instead of using strain gauge technology, BoltSafe uses magnetoelastic technology. Because of this, our force torque sensors measure the changes in the magnetic field.
When using our products for measuring bolt load, a BoltSafe sensor is placed on the non-driven side of a bolted connection, preferably under a nut. Tightening the bolt and applying force, causes minor deformations of the stainless steel washers. These deformations cause changes in the electrical resistance, which are constantly measured by our sensors. We use this data to determine the bolt load at any given moment. Our force torque sensors are also suitable for measuring other forces than bolt load. Examples of possible applications are in temporary construction and for Structural Health Monitoring. The load of a construction is then monitored to make sure that the construction doesn’t collapse.