Optical-fibre sensors

Pitt, G. D.; Extance, P.; Neat, R.C.; Batchelder, D. N.; Jones, Robert E.; Barnett, Julian; Pratt, R.H.

doi:10.1080/02564602.1986.11438006

Cited by 12 publications

(6 citation statements)

References 63 publications

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“…Without this referencing mechanism, optical power fluctuations due to the source, couplers, connectors, or any other optical components in the system can introduce significant relative errors. In some cases, digital communication techniques such as code division multiple access (CDMA) or spread spectrum techniques (SSTs) can reduce noise impact [6,[10][11][12][13][14][15].…”

Section: Journal Of Sensorsmentioning

confidence: 99%

Vibration Detection Using Optical Fiber Sensors

2010

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Condition monitoring of heavy electromechanical equipment is commonly accomplished in the industry using vibration analysis. Several techniques, mainly based on capacitive and piezoelectric accelerometers, have been applied for predictive maintenance. However, the negative influence of the electromagnetic interference (EMI) can be a real problem when electrical signals are used to detect and transmit physical parameters in noisy environments such as electric power generator plants with high levels of EMI. Optical fiber sensors are increasingly used because of the nonelectrical nature of signals. In this paper, the most frequently used vibration optical fiber sensors will be reviewed, classifying them by the sensing techniques and measurement principles. The main techniques, intensity modulation, fiber bragg gratings and Fabry-Pérot Interferometry, will be reviewed here.

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Section: Journal Of Sensorsmentioning

confidence: 99%

Vibration Detection Using Optical Fiber Sensors

2010

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“…To date, a number of fibre optic sensors have been shown to be feasible, either as fixed-installation replacements of existing devices or as probes for special-purpose instruments [3][4][5][6][7]. Reported examples fall into these classes: (a) current and voltage sensors aimed to replace CT and VT transformers on HV lines, or to perform special measurements (such as direct current measurements, and high frequency transient measurement).…”

Section: Introductionmentioning

confidence: 98%

Magneto-optical fibre sensors for electrical industry: analysis of performances

Donati

Annovazzi-Lodi

Tambosso

1988

IEE Proc. J Optoelectron. UK

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We present an analysis of all-fibre sensors intended for current and magnetic field measurements in electrical systems. After reviewing magneto-optic effects in connection to application requirements, we calculate the theoretical performances of the sensor, in terms of sensitivity, bandwidth, dynamic range and linearity, both for polarimetric and interferometric readout schemes. Sources of errors in the fibre and optical components are analysed, and their limitations to sensitivity are evaluated. Birefringence control is discussed, and the results applied to develop several linked and unlinked sensor configurations. Finally, experimental data are compared to theoretical values.

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“…It is a device incorporating a biological sensing element with a traditional sensor, such as physical or chemical sensors. The biological sensing element selectively size of tin dioxide can be controlled by the fabrication conditions, and are considered critical to the sensor's response (Pitt et al, 1985).…”

Section: Chemical Microsensorsmentioning

confidence: 99%

Integration of biosensors based on microfluidic: a review

TermehYousefi¹,

Adib

2015

Sensor Review

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Purpose -Biotechnology is closely associated to microfluidics. During the last decade, designs of microfluidic devices such as geometries and scales have been modified and improved according to the applications for better performance. Numerous sensor technologies existing in the industry has potential use for clinical applications. Fabrication techniques of microfluidics initially rooted from the electromechanical systems (EMS) technology. Design/methodology/approach -In this review, we emphasized on the most available manufacture approaches to fabricate microchannels, their applications and the properties which make them unique components in biological studies. Findings -Major fundamental and technological advances demonstrate the enhancing of capabilities and improving the reliability of biosensors based on microfluidic. Several researchers have been reported verity of methods to fabricate different devices based on EMS technology due to the electroconductivity properties and their small size of them. Therefore, controlled fabrication method of MEMS plays an important role to design and fabricate a highly selective detection of medical devices in a variety of biological fluids. Stable, tight and reliable monitoring devices for biological components still remains a massive challenge and several studies focused on MEMS to fabricate simple and easy monitoring devices. Originality/value -This paper is not submitted or under review in any other journal.

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Optical-fibre sensors

Cited by 12 publications

References 63 publications

Vibration Detection Using Optical Fiber Sensors

Vibration Detection Using Optical Fiber Sensors

Magneto-optical fibre sensors for electrical industry: analysis of performances

Integration of biosensors based on microfluidic: a review

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