Distribuerad akustisk optisk fibersensor för övervakning av transportband
|Coordinator||RISE Research Institutes of Sweden AB - Rise Acreo, Kista|
|Funding from Vinnova||SEK 457 936|
|Project duration||May 2018 - November 2018|
|Venture||The strategic innovation programme for Swedish mining and metal producing industry - SIP Swedish Mining Innovation|
|Call||STRIM fall 2017|
Purpose and goal
The main goal of this project was to verify the added value for mining industry and the technical and commercial potential for acoustic distributed fiber sensors for conveyor belts health monitoring. The goal was achieved by literature review, laboratory experiments and technical discussions with mining industries.
Expected results and effects
We performed experiments that shows our systemcapability to measure distributed vibration frequencies up to 25 kHz and with 40 cm spatial resolution. Discussions were carried on with mining companies based on this project results and it was verified a concrete interest on further developing this technique and to perform field tests in real mining conveyor belts. Boliden mentioned the interest of using the instrument to evaluate vibrations in 3.4 km length conveyor belts and discussions about a possible collaboration are been carried.
Planned approach and implementation
After literature studies and surveys, we concluded that the phase-OTDR system developed at RISE Acreo is a potential solution for idler and pulley monitoring along conveyor belts. Discussions with Swedish and international mining related companies were carried on, including attending to STRIM Project Leaders Workshop in Luleå on the 27th of September 2018. In order to verify the system capabilities, we performed experiments with the in-house phase-OTDR. The results, detailed in a report, show the system capability to attend mining industries requirements.