BoltSafe offers a special kind of force cell that is able to measure and monitor bolt load in bolted constructions, both during assembly and over time. BoltSafe uses magnetoelastic technology, instead of strain gauges or piezoelectric technology. With this technology, the changes in the magnetic field are measured. Using BoltSafe sensors ensures better safety, gives better control over the construction and makes joints more dependable. A BoltSafe force cell is placed on the non-driven side of a bolted connection, preferably under a nut. When the bolt is tightened, forces are applied. This causes minor deformations on the stainless steel washer. These deformations result in changes in the electrical resistance, which our sensors can measure. This is the data we use to determine the bolt load at any given moment.
Examples of applications of our force cells are for Structural Health Monitoring and in temporary constructions, where they make sure that the construction doesn’t collapse. Other applications in various industries where load and forces have to be accurately measured are also possible.