Spotting hot spots with a light touch
Distributed temperature sensing (DTS) is a great technology for monitoring temperature profiles in structures sensitive to material bulk and/or electrical fields, such as aircraft wings or high-energy particle detectors.
Read the results of this latest collaboration between IDQ and HEPIA, a photon-counting Raman-based OTDR scheme . In this work, an arrangement of ultra-precise ID281 SNSPDs and ID900 time-tagging electronics, greatly enhanced the experiment’s range and accuracy to achieve unrivalled centimetre-precise temperature mapping over multi-hundred-metre length scales.
 J. Gasser et al., ‘Distributed temperature sensor combining centimeter resolution with hundreds of meters sensing range’, Optics Express 30, 6768-6777 (2022)