Fiber optic strain sensors for the mining industry
| Reference number | |
| Coordinator | MALMFÄLTEN I NORR AB - MALMFÄLTEN I NORR AB, Kiruna |
| Funding from Vinnova | SEK 420 000 |
| Project duration | December 2013 - December 2014 |
| Status | Completed |
Purpose and goal
The aim of the project was to develop a flexible, fiber-based strain sensor suited for the mining industry that provides a clear added value in comparison with the technology commonly used today. A design has been developed which meets the mining industry requirements. Prototypes have been developed and extensively tested in lab and in experiments demonstrated very good performance. The goal is that with the developed sensor lay a good foundation for productification and continued commercialization of the technology.
Results and expected effects
The mining industry´s demand and requirement of sensors is compiled and defined which provides a good basis for the sensors developed towards the best demand technologies. The advanced prototypes, software and the good performance they provide are well suited for demonstrations in both laboratory and mining environment. This is expected to be very useful for attaching more interested parties, prospective customers and potential financiers to a product process.
Approach and implementation
Initially the requirements that the mining industry has stated for strain sensors in order to satisfy its needs were explored and summarized. On this basis a number of technical ideas were investigated, of which a number also were tested in laboratory environment. The test results served as the starting point for selection of a concept that was judged to provide adequate performance in combination with acceptable costs.A design for complete encapsulated sensors was accomplished, which finally was evaluated in the laboratory with good results.