HBM has developed optical strain gauges with a plastic encapsulation that significantly simplifies handling and makes the sensors highly resistant to mechanical damage. The encapsulation almost completely eliminates the possibility of a fibre break. The products are mainly intended for experimental stress analysis work that demands very precise measurements, even with difficult conditions and materials, and that cannot be resolved with standard strain gauges. These optical devices are also suitable for measurements in hazardous areas and in high current and voltage engineering components.
Several optical strain gauges can be arranged within a glass fibre to significantly reduce installation costs. In addition, the K-OP strain gauges are provided with a data sheet containing all data necessary, such as the gauge factor, for successful strain measurements.