Estimation of metal surface roughness using fiber optic displacement sensor

Harun, Sulaiman Wadi; Yasin, Moh.; Yang, Hangzhou; Kusminarto,; Karyono,; Ahmad, Harith

doi:10.1134/s1054660x10070091

Cited by 17 publications

(10 citation statements)

References 7 publications

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“…The intensity modulated sensors compete well with other sensing methods as they are relatively inexpensive, contact less, easy to be fabricated and suitable for employment in harsh environments. A number of studies have been performed with mirrors and metal surfaces as the reflecting object [10]- [12]. Here, we attempt to exploit the correlation of reflected light intensities along the tooth surface.…”

Section: Introductionmentioning

confidence: 99%

Fiber Optic Displacement Sensor Using Multimode Plastic Fiber Probe and Tooth Surface

et al. 2013

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The principle of operation, experimentation, and performance of a fiber optic displacement sensor on a tooth surface is presented. The performances of this sensor are investigated by correlating the detector output with different probe configurations and various teeth samples with different surface reflectivity properties. With a multimode plastic bundled fiber probe, the sensitivities for the molar, canine, hybrid composite resin, and acrylic surfaces are obtained at 0.9667, 0.775, 0.5109, and 0.25 mV/mm, respectively, with a good linearity of more than 99% based on the analysis of the front slope. With a multimode plastic coupler, the sensitivities for the molar, canine, hybrid composite resin, and acrylic surfaces are obtained at 0.3538, 0.2951, 0.2069, and 0.1579 mV/mm, respectively. This proves that the sensor is capable of discriminating between different teeth surfaces. Such results are useful as guidelines for tooth surface related research, such as tooth surface profiling and measurement of tooth surface roughness.Index Terms-Fiber optic displacement sensor, multimode plastic fiber probe, tooth surface reflectivity.

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Section: Introductionmentioning

confidence: 99%

Fiber Optic Displacement Sensor Using Multimode Plastic Fiber Probe and Tooth Surface

et al. 2013

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“…Optical fiber sensors have been widely used in measuring various physical, chemical, and even biological parameters, as they are compact, responsive, sensitive, stable and resistant to electromagnetic interference [1][2]. They have also been recommended for applications in areas such as structural monitoring of buildings [3], estimation of metal surface roughness [4], vibration tests [5], determination of the thickness of a transparent plate [6], etc. A fiber Bragg grating (FBG) based optical sensor is widely used and by far is the most common type of fiber sensors [7][8].…”

Section: Introductionmentioning

confidence: 99%

A simple load sensor based on a bent single-mode-multimode-single-mode fiber structure

Zulkifli

Masnan

Azmi

et al. 2016

Sensors and Actuators A: Physical

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Highlights  A load sensor uses a single-mode-multimode-single-mode (SMS) fiber structure.  The SMS structure is sandwiched between two CR-39 plastic polymer plates.  A larger effective transverse strain can be achieved when the distance between the stage and the edge of the multimode fiber is larger.  The SMS device is suitable for sensing a small load or transverse strain with a reasonably high sensitivity.

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“…However, implementations of most optical methods are often hindered by the difficulty of adapting them to harsh manufacturing environments, complexity of design as well as the cost of constructing such systems. Conversely, fiber optic displacement sensors (FODSs) have been suggested for noncontact measurement and inspection of surface roughness [14,15].…”

Section: Introductionmentioning

confidence: 99%