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In this paper Intensity Fibre Optic Displacement Sensor (I-FODS) for MEMS displacement metrology has been presented. A system formed by simple optical fibre optics, light source and
Compared to conventional transducers, optical fiber sensors show very high performances in their response to many physical parameters such as displacement, pressure, temperature and electric field.
This paper presents a linear fiber optic displacement sensor for the use over a large range based on the macro-bending loss. The sensor incorporates an extremely simple design, light source
Optical Fiber Displacement Sensors (OFDSs) provide several advantages over conventional sensors, including their compact size, flexibility, and immunity to electromagnetic
This work proposes a fiber-optic displacement sensor and liquid-level sensor for displacement and level measurements in the fiber loop ring-down (FLRD) system and confirm its
This paper describes the optimal design of a miniature fiber-optic linear displacement sensor. It is characterized by its ability to measure
In this paper, we report fiber optics sensor with sub-nanometric resolution and wide bandwidth. It relies on an increase of the reception fibers numbe
Introduced Fiber Optic Displacement measurement principle, Through setting the reference channel, useing of modulation and demodulation technology the system eliminates interference caused by
Here, we present a comprehensive analytical model for multi-axis tilt sensing based on intensity-modulated optical fiber sensors (OFDSs).
The development of displacement sensors is essential in the physical sensor field as the other physical sensors can be derived from the displacement sensor. Here we present a novel
Differential intensity sensors based on optical fibers have been very successful. Nevertheless, an inefficient fiber bundle design limits their ultimate range and sensitivity. This paper presents a method
Displacement measurements are of significant importance in a variety of critical scientific and engineering fields, such as gravitational wave detection, geophysical research, and manufacturing
Optical fiber-based sensor technology offers the possibility of developing a variety of physical sensors for a wide range of physical parameters (Nalwa, 2004). Compared to conventional transducers, optical
communication system via using fiber optics there was a great demand to measure and sense the rate of data transmission, change in phase, intensity, and wavelength and in the case of incentive
An experimental prototype fiber-optic contactless adaptive vibration sensor and a method for correcting its transfer function are described. Measurement of vibration parameters is of great
Abstract—A fiber-optic angular-displacement sensor with a pendulum sensing element based on an optical microfiber with end and side directional radiation outputs, which serve, respectively, for mea
When the optical fiber probe, light source, reflector, optoelectronic converter and amplifier are determined, the output voltage of the amplifier is a single-valued function of the distance between the
Abstract A reflective optical fiber displacement sensor using double optical paths is designed based on the principle of reflective optical fiber displacement sensor. The sensor has double optical paths
The achievement of displacement measurement scheme proposed in this paper is to convert the displacement of light intensity, light intensity into voltage through the optical fiber . In order to
This paper describes the optimal design of a miniature fiber-optic linear displacement sensor. It is characterised by its ability to measure the displacement along a millimetric range, with a
Abstract A fiber-optic angular-displacement sensor with a pendulum sensing element based on an optical microfiber with end and side directional radiation outputs, which serve,
A fiber-optic displacement sensing scheme based on high-precision detection of differential phase is proposed, with advantages of simple structure, low cost, high precision, large
The design of a fibre-optic sensor able to measure high-precision angular displacements is presented. The sensor has a small size which allows easy integration in miniature mechanical
chieved by either beam-though or reflective techniques. A change in displacement of the through-beam and reflective sensors are manifested as a variation in the transm tted light and reflected light
Abstract A novel digital phase detection method is proposed for the high accuracy and large dynamic range interrogation of frequency-modulated continuous-wave (FMCW) interferometric
A fiber optic sensor for two-dimension linear displacement measurements is described. This sensor can have resolution and range in nanometer and millimeter scales, respectively.
It consists of a laser light-source, a fiber bundle to guide the light and two photodiodes, PD1 and PD2, which convert the optical power into electrical