scholarly journals Fiber optic pressure sensors for nuclear power plants

10.2172/90920 ◽  
1995 ◽  
Author(s):  
H M Hashemian ◽  
C L Black
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Fiber Optic ◽  
Pressure Sensors

Fiber-Optic Transmitter for Nuclear Power Plants

2004 ◽  
Author(s):  
Junichi Higashi ◽  
Shinichi Murakawa
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Fiber Optic ◽  
Optic Fiber ◽  
Test Results ◽  
Maintenance System ◽  
Fiber Technology ◽  
Fabry Perot ◽  
Validation Tests

A promising Fiber-Optic Differential Pressure (DP) Transmitter is under development in Flexible Maintenance System (FMS) Projects that supported by Ministry of Economic, Trade, and Industries of Japan. The object of FMS projects is to improve maintenance works at nuclear power plants with latest technology. The new DP Transmitter uses optic-fiber technology of Extrinsic Fabry-Perot Sensor and Fizeau White-Light Cross-Correlator. Validation tests were performed to evaluate the tolerance of the DP transmitter in Nuclear Power Plant conditions. General requirements of PWR are accuracy (repeatability and linearity) of within +/−0.5%, pressure-proof of maximum 17.16MPa, Irradiation of 100Gy, and temperature range of 10–50 degrees centigrade at normal condition. The test results show the new DP transmitter can be expected as the next generation instrumentation in Nuclear Power Plants.

scholarly journals Development of a fiber-optic system for testing instruments for monitoring nuclear power plants

2021 ◽  
Vol 2086 (1) ◽  
pp. 012160
Author(s):  
V M Pilipova ◽  
V V Davydov ◽  
V Y Rud
Keyword(s):  
Optical Fiber ◽  
Communication Systems ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Fiber Optic ◽  
Optical Signal ◽  
Signal Delay ◽  
Fiber Optic System ◽  
Testing Instruments

Abstract The necessity of testing the equipment for monitoring the operation of nuclear power plants is justified. It is proposed to use optical fiber and pulsed laser radiation for these purposes. It is established that optical fiber is more resistant to radiation than other communication systems. The design of a fiber-optic emergency simulator is developed. The calculation of its characteristics is carried out. Their experimental research was carried out. It was found that with an optical signal delay of 98.6 microseconds, the loss is – 26 dB with an uneven frequency response of ± 2 dB. This makes it possible to test the entire set of equipment that uses optical signals used to control a nuclear power plant.

scholarly journals Fiber-optic humidity sensor system for the monitoring and detection of coolant leakage in nuclear power plants

2020 ◽  
Vol 52 (8) ◽  
pp. 1689-1696 ◽  
Author(s):  
Hye Jin Kim ◽  
Hyun Young Shin ◽  
Cheol Ho Pyeon ◽  
Sin Kim ◽  
Bongsoo Lee
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Humidity Sensor ◽  
Fiber Optic ◽  
Sensor System

scholarly journals New fiber optic laser probe for the automatic inspection of cracks in the inner side of heat exchanger tubes of nuclear power plants

1994 ◽  
Author(s):  
Jose Carlos Lopez Vazquez ◽  
Angel F. Doval ◽  
Benito V. Dorrio ◽  
R. Soto ◽  
Jesus Blanco-Garcia ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Fiber Optic ◽  
Automatic Inspection ◽  
Laser Probe

Work structure in nuclear power plants

1983 ◽  
Author(s):  
Marjorie B. Bauman ◽  
Richard F. Pain ◽  
Harold P. Van Cott ◽  
Margery K. Davidson
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Work Structure

Life Extension of Nuclear Power Plants: World Situation and the USA Case

2010 ◽  
pp. 50-56 ◽  
Author(s):  
Pablo T. León ◽  
Loreto Cuesta ◽  
Eduardo Serra ◽  
Luis Yagüe
Keyword(s):  
Nuclear Power ◽  
Power Plants ◽  
Nuclear Power Plants ◽  
Life Extension ◽  
The Usa
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