Search Menu
Photonics Media Photonics Marketplace Photonics Spectra BioPhotonics EuroPhotonics Vision Spectra Photonics Showcase Photonics ProdSpec Photonics Handbook

Fiber Sensors Go Inside Hot Machining Processes

Facebook Twitter LinkedIn Email
Fiber optic pyrometers that can get into places that other heat sensors cannot could help metal parts manufacturers cut down defects and breakdowns.

Researchers at Carlos III University of Madrid have developed 62.5-µm silica fiber sensors that measure heat radiated by mechanical or cutting processes. The system measures radiation in two colors and calculates temperature based on the quotient of the two signals. The fibers can operate at temperatures from 300 to 1000 °C.

In these environments, thermographic IR cameras cannot be used because there is not a clear line of sight to the tool’s cutting point. Thermocouples or other sensors can’t be used either because of the deterioration they will suffer and the difficulty of establishing a good location for them due to inaccessibility.

Obtaining temperature-change data during cutting helps in the analysis of the evolution of wear on a tool, making it possible “to optimize the life of the tool, thereby improving productivity,” said professor Dr. Carmen Vazquez.

Temperature data can also indicate if the workpiece has taken heat damage during the machining process. This could be crucial in the aerospace industry, Vazquez said.

The sensors could also be used in biomedical applications where patient temperature must be monitored closely, as the researchers discuss in a recent Sensors paper (doi: 10.3390/s141224029 [open access]).

Funding for the work came from the Spanish Ministry of Economics and Competitiveness and the Autonomous Community of Madrid

For more information, visit
Jan 2015
Research & TechnologyEuropeSpainUC3MCarlos III University of MadridCarmen Vazquezfiber opticsSensors & DetectorsindustrialTechnology News

Submit a Feature Article Submit a Press Release
Terms & Conditions Privacy Policy About Us Contact Us
Facebook Twitter Instagram LinkedIn YouTube RSS
©2020 Photonics Media, 100 West St., Pittsfield, MA, 01201 USA, [email protected]

Photonics Media, Laurin Publishing
x We deliver – right to your inbox. Subscribe FREE to our newsletters.
We use cookies to improve user experience and analyze our website traffic as stated in our Privacy Policy. By using this website, you agree to the use of cookies unless you have disabled them.