Performance Evaluation of Fabry-Perot Temperature Sensors in Nuclear Power Plant Measurements

Liu, Hanying; Miller, Don W.; Talnagi, J.W.

doi:10.13182/nt03-a3410

Cited by 16 publications

(10 citation statements)

References 3 publications

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“…The metrological characteristics of some fibre-optical sensors remain unchanged even after neutron and gamma irradiations with total doses of 2 MGy [11]. Their thermal sensitivity can be minimized by special designing.…”

Section: Jinst 7 C03026mentioning

confidence: 99%

“…If a fiber-optical sensor for mechanical tension with a built-in Bragg diffraction grid is used as the elastic element, then the precision of measurements of its relative elongation ∆l/l is ∼ 10 −6 . The metrological characteristics of some fibre-optical sensors remain unchanged even after neutron and gamma irradiations with total doses of 2 MGy [11]. Their thermal sensitivity can be minimized by special designing.…”

Section: Jinst 7 C03026mentioning

confidence: 99%

“…Lithium and beryllium have nuclear reactions resulting in more than two secondary particles which output is difficult to estimate. The isotope 11 B was selected because it has high thresholds for other nuclear reactions except the elastic scattering, and allows investigating the feasibility of usage of the kinematical effect produced in the emitter by fast neutrons. On the other hand, heavy elements have high cross sections for emitting light charged particles.…”

Section: Charge Emittersmentioning

confidence: 99%

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Electrometric sensors for neutron radiation: conceptual study

Bogolubov¹,

Koshelev²,

Mikerov³

et al. 2012

J. Inst.

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The paper considers main issues related to the conceptual development of neutron electrometric sensors based on charge uploading. The performance capabilities of sensors such as the detection threshold, dynamic range and sensitivity to gamma radiation were estimated for theoretically feasible designs. The designs do not contain radioactive materials, have no limitations on the fluence and the neutron flux density, can measure the time dependence of the neutron yield, can be low-sensitive to electromagnetic noise. They have a simple structure and some designs do not require the external power supply. Such sensors can be used in the control systems of nuclear reactors and subcritical assemblies, in measurements of the neutron yield of pulsed sources and in scientific investigations.

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Section: Jinst 7 C03026mentioning

confidence: 99%

Section: Jinst 7 C03026mentioning

confidence: 99%

Section: Charge Emittersmentioning

confidence: 99%

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Electrometric sensors for neutron radiation: conceptual study

Bogolubov¹,

Koshelev²,

Mikerov³

et al. 2012

J. Inst.

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“…Same measurement problems occur if you were a chemist trying to control critical parameters such as pressure or temperature during a microwave chemistry process, an engineer supervising radio-frequency (RF) wood drying, a physician monitoring the temperature of a critical care patient undergoing a magnetic resonance imaging (MRI) scan, or even if you were a surgeon burning selected tissues with RF instrumented minimally invasive catheters: without an optical sensor you may face big difficulties. Even in extreme environments such as those encountered into nuclear reactors where strong radiations are present, the optical sensors could provide an attractive alternative solution [7,8].…”

Section: Why Use Fabry-pérot Fiber-optic Sensors?mentioning

confidence: 99%

Fabry‐Pérot Fiber‐Optic Sensors for Physical Parameters Measurement in Challenging Conditions

Pinet

2009

Journal of Sensors

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Optical fiber sensors have unique advantages and distinctive features that make them very attractive for many applications especially those involving challenging conditions where other traditional electrical sensors usually fail. Among the commercially available optical fiber sensors, the Fabry-Pérot sensing technology is probably the most versatile and the most interesting one since a relatively low-cost universal signal conditioner could easily read compatible Fabry Pérot sensors measuring different physical parameters such as strain, temperature, pressure, displacement, or refractive index. This papers details the numerous advantages of this optical sensing technology and also summarizes the operating modes of commercially available signal conditioners and sensors.

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“…Due to their small size and strong anti-interference ability, Fabry–Perot (F–P) sensors have become one of the most promising fiber-optic sensors [ 3 , 4 , 5 ]. Moreover, their applications have been found in a broad range of areas, including industry [ 6 , 7 ], aerospace [ 8 ], and national defense [ 9 , 10 ]. More importantly, they have a rather high resolution, which is the most prominent feature of the F–P sensors.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Fiber Optic Sensor, Based on the Fabry–Perot Interference, Assisted with Fluorescent Material for the Simultaneous Measurement of Temperature and Pressure

Jiang

Lin

Huang

et al. 2019

Sensors

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Herein we design a fiber sensor able to simultaneously measure the temperature and the pressure under harsh conditions, such as strong electromagnetic interference and high pressure. It is built on the basis of the fiber-optic Fabry–Perot (F–P) interference and the temperature sensitive mechanism of fluorescent materials. Both halogen lamps and light-emitting diodes (LED) are employed as the excitation light source. The reflected light from the sensor contains the low coherent information of interference cavity and the fluorescent lifetime. This information is independent due to the separate optical path and the different demodulation device. It delivers the messages of pressure and temperature, respectively. It is demonstrated that the sensor achieved pressure measurement at the range of 120–400 KPa at room temperature with a sensitivity of 1.5 nm/KPa. Moreover, the linearity of pressure against the cavity length variation was over 99.9%. In the meantime, a temperature measurement in the range of 25–80 °C, with a sensitivity of 0.0048 ms/°C, was obtained. These experimental results evince that this kind of sensor has a simple configuration, low-cost, and easy fabrication. As such, it can be particularly applied to many fields.

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Performance Evaluation of Fabry-Perot Temperature Sensors in Nuclear Power Plant Measurements

Cited by 16 publications

References 3 publications

Electrometric sensors for neutron radiation: conceptual study

Electrometric sensors for neutron radiation: conceptual study

Fabry‐Pérot Fiber‐Optic Sensors for Physical Parameters Measurement in Challenging Conditions

Hybrid Fiber Optic Sensor, Based on the Fabry–Perot Interference, Assisted with Fluorescent Material for the Simultaneous Measurement of Temperature and Pressure

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