Optical fibre Fabry-Perot sensor for the detection of small vibrations and displacements

Paulicka, Ivan; Al-Hamdani, Ali H.; Sochor, V.

doi:10.1117/12.2308859

Cited by 2 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, Fabry-Perot (FP) interferometry is presenting itself as a simple and compact alternative solution attempting to overcome the stated limitations. Several sensor systems have already been reported exploiting FP interferometry for measuring pressure [36,37], strain [38], temperature [39], and other physical parameters [40,41]. The greatest challenge when trying to design and fabricate a Fabry-Perot twist/rotation sensor is the modulation of the optical path length change of the FP interferometer instigated by twist/rotation.…”

Section: Introductionmentioning

confidence: 99%

A Miniature Fabry Perot Sensor for Twist/Rotation, Strain and Temperature Measurements Based on a Four-Core Fiber

Budinski¹,

Đonlagić²

2019

Sensors

View full text Add to dashboard Cite

In this article, a novel miniature Fabry-Perot twist/rotation sensor using a four core fiber and quadruple interferometer setup is presented and demonstrated. Detailed sensor modeling, analytical evaluation and test measurement assessment were conducted in this contribution. The sensor structure comprises a single lead-in multicore fiber, which has four eccentrically positioned cores, a special asymmetrical microstructure, and an inline semi-reflective mirror, all packed in a glass capillary housing. A four core fiber positioned in front of a special asymmetrical microstructure and the inline semi reflective mirror defines four Fabry-Perot interferometers. Rotation of the sensors’ asymmetrical microstructure around the axis of the in-line four core fibers´ modulates the path lengths of all four interferometers simultaneously. Proper processing of path length changes of all four interferometers allows for unambiguous and temperature independent determination of the sensor’s rotation angle.

show abstract

Section: Introductionmentioning

confidence: 99%

A Miniature Fabry Perot Sensor for Twist/Rotation, Strain and Temperature Measurements Based on a Four-Core Fiber

Budinski¹,

Đonlagić²

2019

Sensors

View full text Add to dashboard Cite

show abstract

“…For the purpose of miniaturization and simplification, specialty multicore fibers with Fabry-Perot interferometry are presenting themselves as a technology for constructing micro components/structures for exploitation in new twist/rotation sensor designs. Implementation of Fabry-Perot interferometers is already a proven technique for production of compact pressure sensors [2,3], strain sensors [4], temperature sensors [5] and other sensors for measuring a variety of physical parameters [6,7]. Incorporating a Fabry-Perot interferometer in a twist/rotation fiber sensor presents a unique challenge.…”

Section: Introductionmentioning

confidence: 99%

Miniature Twist/Rotation Fabry Perot Sensor Based on a Four-Core Fiber

Budinski¹,

Đonlagić²

2018

Eurosensors 2018

View full text Add to dashboard Cite

This paper presents a miniature Fabry Perot twist/rotation sensor. The presented sensor consists of a single lead-in multicore fiber, which has four eccentrically positioned cores, a special asymmetrical microstructure, similar to a truncated cylinder, and an inline semi reflective mirror, all packed in a glass capillary housing. The perpendicular cut lead-in multicore fiber and the inline semi reflective mirror form four Fabry-Perot cavities. The optical path length of each Fabry-Perot interferometer is defined by the distance between mirrors, refractive index and twist/rotation angle of the microstructure in relation to the core positions in the lead in multicore fiber. Optical paths of Fabry-Perot Interferometers are modulated by a structure’s twist/rotation, change of structure length, or change of temperature. Each of these parameters modulate the optical path length of the individual interferometers in their own separate fashion, thus allowing independent measurements of twist/rotation, length/strain and temperature.

show abstract

Optical fibre Fabry-Perot sensor for the detection of small vibrations and displacements

Cited by 2 publications

References 0 publications

A Miniature Fabry Perot Sensor for Twist/Rotation, Strain and Temperature Measurements Based on a Four-Core Fiber

A Miniature Fabry Perot Sensor for Twist/Rotation, Strain and Temperature Measurements Based on a Four-Core Fiber

Miniature Twist/Rotation Fabry Perot Sensor Based on a Four-Core Fiber

Contact Info

Product

Resources

About