<title>Development of fiber optic sensors at TNO for explosion and shock wave measurements</title>

Abstract

Fibre Optic sensors are found to be very suitable for explosion and shock wave measurements because they are immune to Electromagnetic Interference (EMI). In the past few years, TNO has developed a number of sensor systems for explosion and shock wave measurements in which the optical fiber is a vital component. This paper presents a survey of these optical measurement systems using fibre optics. The basic design ofthese systems, the test configurations and the experimental results are presented.

FBG-based smart textiles for continuous monitoring of respiratory movements for healthcare applications

“…In our case, to measure locally the deformation, we opted for an optical fiber Bragg grating sensor (FBG). This component, realized by a UV interferometry pattern, inducing a modification of the refractive index of the core of the optical fiber, reflects particular wavelength of light (the Bragg wavelength: 1.. 8) and transmits all others as a filter (Fig.)). This particular sensor presents the advantage to be sensitive to a strain which would be applied to it.…”

“…Optical fibers sensors have already demonstrated great capabilities for many applications where non-invasive concerns, electromagnetic compatibility, risk of explosion [8] or need for distributed measurement [9] limit the use of standard technologies. Up to now their use as embedded sensors in technical textiles for medical applications has not 978-1-4244-6376-3/10/$26.00 ©2010 IEEE been implemented in clinical routine despite their expected positive impact.…”

OFSETH: A breathing motions monitoring system for patients under MRI

“…On the other hand, optical sensors offer the advantage of being free from metallic or electrical conductive parts, and in addition, can be remotely interrogated via an optical fiber cable allowing the monitoring unit to be far outside the MRI field. Optical fibers sensors have already demonstrated great capabilities for many applications where non-invasive concerns, electromagnetic compatibility, risk of explosion [3] or need for distributed measurement [4] limit the use of standard technologies.…”

OFSETH: Smart medical textile for continuous monitoring of respiratory motions under magnetic resonance imaging

“…Optical fibers sensors have already demonstrated great capabilities for many applications where non-invasive concerns, electromagnetic compatibility, risk of explosion [2] or need for distributed measurement [3] limit the use of standard technologies. Up to now their use as embedded sensors in technical textiles for medical applications has not been implemented in clinical routine despite their expected positive impact.…”