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Article
Publication date: 1 January 1987

Roger Main

Roger Main gives a four‐part report on the optical technologies which are playing an increasingly important role in sensor development.

Abstract

Roger Main gives a four‐part report on the optical technologies which are playing an increasingly important role in sensor development.

Details

Sensor Review, vol. 7 no. 1
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 1 March 1987

P. Roef

Optical fibre sensors are finding wide applications in biotechnology and medicine, as a European specialist explains.

Abstract

Optical fibre sensors are finding wide applications in biotechnology and medicine, as a European specialist explains.

Details

Sensor Review, vol. 7 no. 3
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 1 March 1985

Roger P. Main

The use of fibre optic sensors is a relatively new development but the future applications are enormous

Abstract

The use of fibre optic sensors is a relatively new development but the future applications are enormous

Details

Sensor Review, vol. 5 no. 3
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 1 February 1989

D.J. Mobbs and D. Summerhayes

Sensor Review publishes the results of a major sensor survey.

Abstract

Sensor Review publishes the results of a major sensor survey.

Details

Sensor Review, vol. 9 no. 2
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 18 January 2013

Mohd Anwar Zawawi, Sinead O'Keffe and Elfed Lewis

The purpose of this paper is to provide a comparative review of intensity‐modulated fiber optic sensors with non‐optical sensors for health monitoring applications, from…

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1054

Abstract

Purpose

The purpose of this paper is to provide a comparative review of intensity‐modulated fiber optic sensors with non‐optical sensors for health monitoring applications, from the current research activities in the area.

Design/methodology/approach

A range of published research work in sensor design for four different health monitoring applications, including, lumbar spine bending, upper and lower limb motion tracking, respiration and heart rate monitoring, are presented and discussed in terms of their respective advantages and limitations.

Findings

This paper provides information on the various types of sensors applied into the health monitoring area. The sensing techniques of the fiber optic sensor for the stated applications are focused and compared in details to highlight their contributions.

Originality/value

A comparative review of published work is illustrated in an informative table content, to allow a clear idea of the current sensing approaches for health monitoring applications.

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Article
Publication date: 1 July 2006

Christine Connolly

To examine the range of fibreoptic sensors available for monitoring the integrity of buildings and civil engineering structures.

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1013

Abstract

Purpose

To examine the range of fibreoptic sensors available for monitoring the integrity of buildings and civil engineering structures.

Design/methodology/approach

Explains the need for structural monitoring and reviews the types of fibreoptic sensors. Concentrating on elongation and temperature sensing, shows how each technology works, which companies supply the products, and gives an overview of their technical specifications.

Findings

Fibre optics are able to provide integrated, single‐point and distributed sensor systems. The fibre is a communication channel as well as a sensor, and in some systems, carries highly multiplexed data over considerable distances to a central monitoring station. The take‐up of this technology in structural sensing is helped by appropriate packaging that assists attachment to buildings. Durability and measurement stability give a continuity of measurement that was not previously possible.

Originality/value

An introduction to the range of sensors applicable to structural monitoring, of general interest to scientists, but particularly to civil and constructional engineers.

Details

Sensor Review, vol. 26 no. 3
Type: Research Article
ISSN: 0260-2288

Keywords

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Article
Publication date: 1 February 1992

Radislav Potyrailo and Sergei Golubkov

Achievements in guided wave optics have had a great influence on many areas of technology for several years. Fibre optic communication links, sensors for various…

Abstract

Achievements in guided wave optics have had a great influence on many areas of technology for several years. Fibre optic communication links, sensors for various parameters, recently developed distributed temperature sensors, integrated optical switches, etc. are all applications that are commercially available. The field of analytical chemistry is no exception in this growing technology. In order to compete with well‐established chemical‐sensing instrumentation, optical waveguide chemical sensors (OWCSs) must show all the qualities of such instrumentation. OWCSs combine well‐known features of sensors, based on waveguide optics, with optical methods of chemical analysis and offer advantages over other types of chemical sensor. OWCSs are electrically passive, corrosion‐resistant, can respond to analytes for which other chemical sensors are not available, and referencing can be carried out optically. They allow multicomponent measurements at several wavelengths, have a common technology for fabrication of sensors for different chemical and physical parameters and are easily compatible with telemetry etc. Further, only OWCSs are capable of distributed sensing. However, interference from ambient light, temperature, long‐term instability, relatively slow response time, and limited dynamic range may be a problem for some types of OWCS. These disadvantages can be considerably reduced using various methods.

Details

Sensor Review, vol. 12 no. 2
Type: Research Article
ISSN: 0260-2288

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Article
Publication date: 1 March 1990

Elzbieta Marszalec and Janusz Marszalec

Integration of lasers and fibre optics into robotic systems provides new opportunities in sensing and material processing. Increased productivity and application of robots…

Abstract

Integration of lasers and fibre optics into robotic systems provides new opportunities in sensing and material processing. Increased productivity and application of robots in hostile environments are other possibilities.

Details

Industrial Robot: An International Journal, vol. 17 no. 3
Type: Research Article
ISSN: 0143-991X

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Article
Publication date: 1 March 1998

Vincent A. Handerek

Optical fibre multiplexed sensors are used to make measurements at multiple, discrete locations, usually by sending optical signals between each measurement location and a…

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651

Abstract

Optical fibre multiplexed sensors are used to make measurements at multiple, discrete locations, usually by sending optical signals between each measurement location and a conveniently positioned optical interrogation instrument. It is rapidly becoming practical to construct multiplexed optical fibre sensor arrays based on in‐fibre Bragg gratings. A Bragg grating can be produced in an optical fibre by writing a periodic variation in the refractive index of the fibre’s core along the axis, using ultra‐violet light. Multiplexing applications will appear ranging from the small scale, with only a few sensors, up to very large scales with hundreds of sensors.

Details

Sensor Review, vol. 18 no. 1
Type: Research Article
ISSN: 0260-2288

Keywords

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Article
Publication date: 1 March 2005

M. McSherry, C. Fitzpatrick and E. Lewis

There are various temperature measuring systems presented in the literature and on the market today. Over the past number of years a range of luminescent‐based optical

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1331

Abstract

Purpose

There are various temperature measuring systems presented in the literature and on the market today. Over the past number of years a range of luminescent‐based optical fibre sensors have been reported and developed which include fluorescence and optical scattering. These temperature sensors incorporate materials that emit wavelength shifted light when excited by an optical source. The majority of commercially available systems are based on fluorescent properties.Design/methodology/approach – Many published journal articles and conference papers were investigated and existing temperature sensors in the market were examined.Findings – In optical thermometry, the light is used to carry temperature information. In many cases optical fibres are used to transmit and receive this light. Optical fibres are immune to electromagnetic interference and are small in size, which allows them to make very localized measurements. A temperature sensitive material forms a sensor and the subsequent optical data are transmitted via optical fibres to electronic detection systems. Two keys areas were investigated namely fluorescence based temperature sensors and temperature sensors involving optical scattering.Originality/value – An overview of optical fibre temperature sensors based on luminescence is presented. This review provides a summary of optical temperature sensors, old and new which exist in today's world of sensing.

Details

Sensor Review, vol. 25 no. 1
Type: Research Article
ISSN: 0260-2288

Keywords

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