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3D-printed temperature sensors based on Fiber Bragg Gratings
KTH, School of Engineering Sciences (SCI).
KTH, School of Engineering Sciences (SCI).
2016 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

Fiber Bragg Gratings is a type of optical sensor used to measure temperature

in many different fields. They have many advantages in relation to standard

electric thermometers. The optical fiber and grating is cheap, these optical

fiber sensor systems are expensive mainly due to the spectrum analyzer,

so it is preferable to minimize the cost while keeping the accuracy as high

as possible. By increasing the thermal response of the fiber it is possible

to reduce the overall cost of the sensor system. The thermal response can

be increased if a material with greater thermal expansion than the fiber

is used as coating. Plastic is a coating material with potential due to its

availability, low cost and high coefficient of thermal expansion. With 3Dprinting

it is possible to choose from a large range of materials available

and customize the functionality of the sensor. In this degree project we

examined the functionality of a PLA coated Fiber Bragg Grating sensor

where the coating was applied using a 3D-printer. Our findings shows that

these type of sensors could meet the requirements if used within a specific

temperature range.

Place, publisher, year, edition, pages
2016. , 40 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-195841OAI: oai:DiVA.org:kth-195841DiVA: diva2:1045597
Available from: 2016-11-10 Created: 2016-11-10Bibliographically approved

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