Development of a 1-DOF Force Sensor Prototype Incorporating Tapered Fiber Bragg Grating for Microsurgical Instruments

Abushagur, Abdulfatah A. G.; Arsad, Norhana; Elgaud, Mohamed M.; Bakar, Ahmad Ashrif A

doi:10.1109/access.2019.2954914

Cited by 7 publications

(7 citation statements)

References 16 publications

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“…An automated system used to calibrate the prototype force sensor element, which is controlled by home-made developed LABVIEW-based graphical software. Following the same procedures as the one which was implemented in phase I [16]. First, as shown in Figure 3, the sensor prototype is exposed to temperature changes in order to investigate the sensors' bandwidth resposne.…”

Section: Methodsmentioning

confidence: 99%

“…The prototype is shown in Figure 2 after it has been integrated with the two customized FBGs. The TFBG which we explored in further depth in our prior work [16], is glued at its two ends along the neutral axis of the shaft. Meanwhile the CFBG is bonded using an adhesive (LOCTITE 401) and buried longitudinally along the one of the grooves.…”

Section: Sensors Arrangementmentioning

confidence: 99%

“…Meanwhile, the bandwidth of TFBG is tunable for both forces but not for temperature variations. A detailed analysis of the prototype's beam theory and sensing principle can be found in our previous works [15], [16], leading to the following expressions for the readout signal in matrix notation; Which in turn simultaneous force measurement can be achieved as follow;…”

Section: Sensing Principle and Force Calculation Algorithmmentioning

confidence: 99%

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An Optical Combination Method for Resolving Axial and Transverse Force Interference Using Tapered Fiber Bragg Grating

Abushagur¹,

Bakar²,

Arsad³

2022

Preprint

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Crosstalk noise between the two force components (axial and transverse) and temperature is always present when the fibre Bragg grating (FBG) sensor technology is utilized in many sophisticated equipment. To address this, we proposed a theoretical method that decouples the two force components while eliminating the effect of temperature, using a combination of modified FBGs and a bandwidth modulation mechanism. Our previous study showed the first step in our continuous effort to prove the concept. In this study, the second part of proving the decoupling approach while avoiding the temperature effect is proved experimentally. In addition to the tapered FBG (TFBG) in its neutral axis, a hollow shaft prototype that resembles the construction of several medical surgery equipment is being developed further to include a linear chirped FBG (CFBG) along its shaft's surface. The experimental results demonstrate that the estimated axial and transverse force values are consistent with their actual values, with RMS errors of less than 0.32 N and less than 0.16 N, respectively, over the range of (0 N – 10 N). The presented method can potentially be extended to small surgical instruments such as ophthalmia’s needle and ablation catheter.

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Section: Methodsmentioning

confidence: 99%

Section: Sensors Arrangementmentioning

confidence: 99%

Section: Sensing Principle and Force Calculation Algorithmmentioning

confidence: 99%

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An Optical Combination Method for Resolving Axial and Transverse Force Interference Using Tapered Fiber Bragg Grating

Abushagur¹,

Bakar²,

Arsad³

2022

Preprint

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“…The most exciting and reliable, reproducible FBG sensor is when the spectrum's pair FWHM with CRW are used. Researchers in [6]- [9] are required to manipulate the FBG sensor housing's mechanism prior to experimentation to induce a non-uniform strain (spatial gradient) along the FBG under longitudinal tension. That allows them to demodulate the FWHM and the CRW to distinguish between two different metrics (e.g., water level and temperature) of interest.…”

Section: Introductionmentioning

confidence: 99%

“…That allows them to demodulate the FWHM and the CRW to distinguish between two different metrics (e.g., water level and temperature) of interest. However, there are several applications where FBGs are surface mounted/embedded on flexible smart structures where loads can be applied axially and transversely, inducing both uniform and non-uniform strains along with the structure containing the FBG sensor [9]- [13]. In such applications, it is desirable to monitor both strains together with temperature simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of a Novel Spectral Pair of a Chirp FBG Embedded in a Cantilever Beam for Simultaneous Temperature and Transverse Forces Measurement

et al. 2021

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An evaluation of a novel spectrum features combining the distant longer and shorter wavelengths of a single chirped fiber Bragg grating (CFBG) for temperature and transverse forces discrimination is experimentally demonstrated. The shift of the two distant wavelengths' pair is compared with the conventional pair combining the bandwidth modulation and center wavelength shift. The CFBG sensor is simply bonded to a cantilever beam and subjected to transverse loading (four times) and a heating-cooling cycle. The transverse forces calibration results show a repeatability of 3.9 pm and 1.7 pm for the bandwidth's and center wavelength's responses, respectively, while the distant wavelengths' show a repeatability of 2.37 pm and 3.01 pm, respectively. The cantilever CFBG sensor exhibits high correlation coefficients of 0.9 between the two heating and cooling data sets, except for the bandwidth, which only had a lower coefficient of 0.75. The linear model of both pairs for calculating temperature and transverse forces can provide an accurate estimate, with the longer-shorter wavelengths' pair having an advantage over the pair of the bandwidth-centre-wavelength. The study has demonstrated the feasibility of the method proposed by our group in a previous work, by which three physical quantities can be measured with a single custom FBG.

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Sensing performance of apodized fiber Bragg gratings having linearly tapered profile

2023

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Development of a 1-DOF Force Sensor Prototype Incorporating Tapered Fiber Bragg Grating for Microsurgical Instruments

Cited by 7 publications

References 16 publications

An Optical Combination Method for Resolving Axial and Transverse Force Interference Using Tapered Fiber Bragg Grating

An Optical Combination Method for Resolving Axial and Transverse Force Interference Using Tapered Fiber Bragg Grating

Evaluation of a Novel Spectral Pair of a Chirp FBG Embedded in a Cantilever Beam for Simultaneous Temperature and Transverse Forces Measurement

Sensing performance of apodized fiber Bragg gratings having linearly tapered profile

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