Highly sensitive force sensor based on balloon-like interferometer

Wu, Yue; Xiao, Siyu; Xu, Yao; Shen, Y.F.; Jiang, Youchao; Jin, Wenxing; Yang, Yong; Jian, Shuisheng

doi:10.1016/j.optlastec.2018.01.008

Cited by 22 publications

(16 citation statements)

References 24 publications

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“…The structure of the sensor was optimized using the finite element method (FEM), and its static characteristic was analyzed. The force response of the sensor was measured to be 1.51 nm μN −1 , which indicated two-orders-of-magnitude improvement over previously reported fiber-optic force sensor based on a modal interferometer (24.9 pm μN −1 ) 15 . The sensor exhibited an unambiguous measurement range of ~2.9 mN and an ultra-small detection limit of 54.9 nN, which is comparable to that achieved by AFMs.…”

Section: Introductionmentioning

confidence: 61%

“…5b . The dip wavelength shifted linearly toward a shorter wavelength as the applied force increases, the force sensitivity of the force sensor was calculated to be −1.51 nm μN −1 by using a linear fit of the dip wavelength change, which are two orders of magnitude higher than that of the previously reported fiber-optic force sensor based on a balloon-like interferometer 15 . R -square ( R 2 ), which describes how well the data matches the fit function, is 0.98378.…”

Section: Resultsmentioning

confidence: 81%

“…However, MEMS force sensors are limited in many applications due to the need for proper packaging and poor electromagnetic compatibility 11 . Compared with MEMS force sensors, optical fiber ones have the advantages of high sensitivity, flexibility, lightweight, compactness, great biocompatibility, and immunity to electromagnetic interference 12 – 15 . Thus, a variety of fiber-optic force sensors have been reported during the past few years.…”

Section: Introductionmentioning

confidence: 99%

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Fiber-tip polymer clamped-beam probe for high-sensitivity nanoforce measurements

et al. 2021

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Micromanipulation and biological, material science, and medical applications often require to control or measure the forces asserted on small objects. Here, we demonstrate for the first time the microprinting of a novel fiber-tip-polymer clamped-beam probe micro-force sensor for the examination of biological samples. The proposed sensor consists of two bases, a clamped beam, and a force-sensing probe, which were developed using a femtosecond-laser-induced two-photon polymerization (TPP) technique. Based on the finite element method (FEM), the static performance of the structure was simulated to provide the basis for the structural design. A miniature all-fiber micro-force sensor of this type exhibited an ultrahigh force sensitivity of 1.51 nm μN−1, a detection limit of 54.9 nN, and an unambiguous sensor measurement range of ~2.9 mN. The Young’s modulus of polydimethylsiloxane, a butterfly feeler, and human hair were successfully measured with the proposed sensor. To the best of our knowledge, this fiber sensor has the smallest force-detection limit in direct contact mode reported to date, comparable to that of an atomic force microscope (AFM). This approach opens new avenues towards the realization of small-footprint AFMs that could be easily adapted for use in outside specialized laboratories. As such, we believe that this device will be beneficial for high-precision biomedical and material science examination, and the proposed fabrication method provides a new route for the next generation of research on complex fiber-integrated polymer devices.

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Section: Introductionmentioning

confidence: 61%

Section: Resultsmentioning

confidence: 81%

Section: Introductionmentioning

confidence: 99%

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Fiber-tip polymer clamped-beam probe for high-sensitivity nanoforce measurements

et al. 2021

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“…The structure can be merely constructed by bending the Single-mode fiber (SMF) into a balloon-like form, eliminating the need for a time-consuming and expensive production process [ 19 ]. In this setup, a portion of the light will pass from the core to the cladding layer without being constrained by the core, and interference between the core and cladding modes due to their different lengths will then occur [ 20 , 21 , 22 ]. Curved optical fiber cross-section sensors based on balloons are capable of scanning wide regions with good measurement reproducibility, ease of use, and compactness [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Optical Strain Gauge Prototype Based on a High Sensitivity Balloon-like Interferometer and Additive Manufacturing

Cardoso

Caldas

Giraldi

et al. 2022

Sensors

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An optical strain gauge based on a balloon-like interferometer structure formed by a bent standard single-mode fiber combined with a 3D printer piece has been presented and demonstrated, which can be used to measure displacement. The interferometer has a simple and compact size, easy fabrication, low cost, and is repeatable. The sensor is based on the interference between the core and cladding modes. This is caused by the fiber’s curvature because when light propagates through the curved balloon-shaped interferometer region, a portion of it will be released from the core limitation and coupled to the cladding. The balloon has an axial displacement as a result of how the artwork was constructed. The sensor head is sandwiched between two cantilevers such that when there is a displacement, the dimension associated with the micro bend is altered. The sensor response as a function of displacement can be determined using wavelength shift or intensity change interrogation techniques. Therefore, this optical strain gauge is a good option for applications where structure displacement needs to be examined. The sensor presents a sensitivity of 55.014 nm for displacement measurements ranging from 0 to 10 mm and a strain sensitivity of 500.13 pm/μϵ.

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“…NTERFEROMETRIC fiber sensors (IFSs) are widely used for measuring external environmental parameters, including gas refractive indices [1], temperature [2,3,4], strain [5,6], salinity [7], glucose [8], force [9] and respiration [10], because of their many advantages, such as low cost, simple fabrication, small size, anti-electromagnetic interference and high sensitivity/resolution. Generally, IFSs can simultaneously measure dual parameters [11,12].…”

Section: Introductionmentioning

confidence: 99%

Phase Demodulation Based on K-Space With High Sensitivity for Interferometric Fiber Sensor

Ling

Tian

et al. 2022

IEEE Photonics J.

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This study firstly proposes and experimentally demonstrates a phase demodulation method with high sensitivity for interferometric fiber sensors (IFSs) on the basis of the fast Fourier transform of a wavenumber domain. The phase information of IFSs triggered by changes in environmental parameters is obtained by calculating the initial phase variation of a specific Fourier-transformed spatial frequency. Theoretically, phase sensitivity can be improved by n times when the optical path difference (OPD) of a spatial frequency peak is increased by a multiple (n times) of the OPD of other spatial frequency domain peaks. To verify the method experimentally, this study designed a large laterally offset spliced sensor formed by common singlemode fibers on the basis of mode interference. The sensing characteristics of temperature and strain in each set of two-beam interference are analyzed simultaneously by calculating the phase sensitivities of the frequency domain peaks. Furthermore, the highest reported temperature and strain sensitivities of 0.0795 rad/°C and −0.0088 rad/με, respectively, with good repeatability are realized.

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Highly sensitive force sensor based on balloon-like interferometer

Cited by 22 publications

References 24 publications

Fiber-tip polymer clamped-beam probe for high-sensitivity nanoforce measurements

Fiber-tip polymer clamped-beam probe for high-sensitivity nanoforce measurements

Optical Strain Gauge Prototype Based on a High Sensitivity Balloon-like Interferometer and Additive Manufacturing

Phase Demodulation Based on K-Space With High Sensitivity for Interferometric Fiber Sensor

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