Utilizing Furukawa Optical Fiber Technology. Optical Fiber Sensing System

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1 Utilizing Furukawa Optical Fiber Technology Optical Fiber Sensing

2 Point Special features of optical fiber sensing s 1Reduced installation cost Sensors (measurement location) require no electrical work making it possible to reduce installation costs for the overall. A nerve network of optical fiber for a range of social infrastructure and structures! 2 Low failure rate Simple and robust setup. We build s with low failure rates and high reliability. 3 Low operating cost Reduced maintenance costs due to the simple and robust setup. No 4power supply. No induction The sensing part is configured from optical fiber and optical components only. No power supply is necessary and the sensor can also withstand lightning strikes and induction. Long-distance 5 transmission is suited to remote monitoring of extensive areas. Effective for equipment diagnosis at oversized structures! 6Broadband Facilitates remote monitoring of extensive areas and numerous points Toward implementing a safe and secure society The sensor components are made of glass. The includes no electronic components and operates without a power supply. No electrical work required for the sensors (measurement location). Robust, withstands lightning strikes and electrical noise. Reduced installation costs No requirement for incidental equipment such as information transmission equipment, power supply facilities or lightning protection devices, reducing overall installation cost. Broadband/ Long-distance transmission Facilitates information collection from numerous locations over wide areas. Captures high-speed movements over broadband. Information captured by the sensor part can be transmitted by optical fiber over long distances (several tens of kilometers). Sensors (measurement location) do not require information transmission devices.

3 Comparison of electric sensors and optical fiber sensors A with electric sensors [ Sensor installation work ] Power supply work branching for the sensors Installation of optical transmission devices Installation of converters Installation of sensors In addition to the sensor itself, power supply work and incidental equipment including converters, transmission devices and lightning protection devices are required at each location. High cost for the overall. Distribution lines On-site for electric sensor Lots of incidental equipment Trough Incoming panel Lightning protection transformer Optical cable closure Rain gauge Transmission device Lightning protection device Power supply Sensor signal converter Optical water immersion sensor / Water level sensor A with optical sensors [ Sensor installation work ] branching for the sensors Installation of sensors O n l y o p t i c a l f i b e r s e n s o r s a t t h e installation locations. Since there is no need for incidental equipment other than the sensor, the overall is low-cost and highly reliable. On-site for optical sensor Little incidental equipment Low-cost Easy maintenance Rain gauge Optical water immersion sensor / Trough Water level sensor Optical cable closure Comparison of installation cost and maintenance cost Installation cost comparison Compared to the electric sensor, installation cost is 20-60%! (* In case of electric sensor s with the same reliability as optical fiber sensors) Since the setup is simple and the robust sensor part is made of glass, reliability is high and maintenance costs are also reduced! Even operates during power outages caused by disasters (Except for the key station) Cost ratio (%) Cost comparison for electric sensor and optical fiber sensor (sensors in 30 locations)(cost ratio for 100% electric sensor ) 100% 80% 60% 40% 20% 0% Electric sensor Example of optical water immersion and overflow detection sensor sensor Key station Optical coupler Station Quakeproof transformer Direct current device Antenna/coaxial lightning protector Wireless telemetry device/ optical transmission device Optical water immersion and overflow detection sensor Maintenance cost comparison Compared to the conventional electric sensors, optical fiber sensors allow for building a sensor with low failure rates. Compared to electric sensor s, the probability of failure is about 1/100 th keeping down the operating expenses required for maintenance and repairs. * In case of optical water immersion and overflow detection sensor * Based on FIT figures for each device Number of failures [times] (failure rate) Failure rate comparison for conventional electric sensor and optical fiber sensor Number of failures (probability) for optical fiber sensor s 0.3 times /10 years Number of failures (probability) for electric sensor s 44.5 times / 10 years Timeline [Years]

4 We assist by building and operating sensing s matched to customer requirements. 1 proximity sensor Abnormal vibration in bridges, dams and other structures (equipment diagnosis) Water immersion detection for liquid surface sensors and sudden heavy downpours Detecting water-level war nings for rivers and u n d e r p a s s e s O p e n / c l o s e d e t e c t o r s f o r w a t e r g a t e s a n d g a t e s Detecting falling bridges proximity sensor Single-point measurement model (simple ) Single-point measurement made possible by single-core optical fiber. Low-priced, easy to handle due to simple Higher rank (Sensor Monitor) Higher rank Example of applying optical fiber vibration/ impact detectors River water level measurements and water level warning detectors Optical water immersion / Supply power to sensors and equipment in remote locations Multipoint measurement model (OTDR ) Single-point measurement made possible by single-core optical fiber. Detect road flooding including underpasses Detect water level warnings for rivers Detect water level warnings for reservoirs/ drainage ponds Detect incremental water levels inside manhole, etc. Detect water immersion inside tanks Inside sewer pipes A that transmits the supply of power by optical fiber. Facilitating power supply to machinery and other equipment. Optical water immersion / Optical water immersion/ Light source module Supply power to sensors and equipment in remote locations Measure amount and intensity of rainfall Multiple rainfall measurement Optical cord 2 in remote locations (Abnormal) diagnosis of equipment at bridges, dams and other structures Existing optical cable Branching closure Rotating rainfall gauge Optical cable Detect opening/closing of security gate Impact of falling rocks, mudflows, avalanches Detect opening/closing of sluices and sluiceways Single-point measurement model (simple ) Existing optical cable rain gauge Higher rank Multipoint measurement model (OTDR ) Higher rank (Sensor Eyes) Sensor * What is the Faraday effect? The rotation of the plane of polarization of light by a magnetic field. As a result, it is possible to control the transmission or reflection of incoming light. Sensor installation conditions Equipment diagnosis at large-scale structures and industrial complexes single-core <feasible measurement distance 15 km> M a x i m u m o f 5 0 p r o x i m i t y sensors/ 10-core <in case of using optical switches> Maximum feasible installation distance 20 k m < i n c a s e o f installing a single sensor> surface levels inside sewer pipes, in rivers and inside manholes and hand holes Take steps against sudden heavy downpours Water level measurements at several points Climbing over Contact point PD With this, the PD receives light output from the LD. If the level of light received falls below the specified value, the alarm sounds. Support line anchor Sensor line* Fixed support line Pass-through ring Detector Monitoring center For on-premise communication #1 #n defense installations, etc. Detection device Trunk line optical fiber Example of applying optical fence sensor to prevent intrusion Data-processing part Control PC Alarm General public facilities, airports, harbors, Optical Water Level Gauge Circulator Light wavelength measuring device LD Water level detection part Single Light source Power source Cutting through Maximum of 5 proximity sensors/ Measure water levels and liquid Outdoor perimeter security responding to advanced security needs. High-speed detection of intrusion via the fence. Example of application of open/ close detector 5 Optical water level gauge Measures water levels and liquid surface levels inside sewer pipes, in rivers and inside manholes and hand holes. DC 9 Optical fence sensor Measure amount and intensity of rainfall Optical measurement device part Detect interruptions Sensor Coupler Sensors, equipment etc. and install the main equipment at a remote monitoring office. Detect interruptions in realtime. Water level warning detection for road flooding, rivers, manholes etc. Power lines cable (Use SM model optical fiber single-core) Mudflows etc. Lay down optical fiber in places where occurrence is likely (Sensor Monitor) Power supply unit We also provide a low-power version (1.5 km transmission/ 2 mw). wire sensor to monitor cuts to optical fiber. Capture interruptions to optical fiber caused by mudflows and landslides. An interruption monitoring with few malfunctions and resistant to electric shocks. Crime prevention sensors that detect intruders and burglars, and sound an alarm when the optical fiber is cut. Security at general/public facilities, airports and harbors Lead cord wire sensor Approx. 10 km Light source module Power lines [Example] Output voltage DC 5 V Output current 15 ma 8 wire sensor 4 Open/close detector Input voltage DC 5 V Emergency power supply Lead cord Existing telemetry station Measurement equipment Contact output Optical wave PMC module Converting optical energy to electric energy at regular measurement times Power supply unit Branching closure Remote monitoring in realtime of the open/ close status of sluices and sluiceways. The main sensor is installed on the side of the gates to detect the opening and closing of the gates. Uses the Faraday effect*. Original power source Supplying power to sensors and equipment Rotating rainfall gauge Termination box Contact output cable (SM 5-6 core) Center equipment Vibration measurements for plants/machinery (maintenance/equipment maintenance) Supplying power to sensors and equipment Office or agency sensor (detector line) Alarm 7 Photonic power supply using optical fiber Coupler 3 rain gauge Operating terminal Abnormal vibrations in bridges, dams and other structures Impact of falling rocks, mudflows, avalanches Failure diagnostics of plant equipment, rotating equipment 1 Ah!! Time to change the bearings! (Sensor Eyes) * What is the Faraday effect? The rotation of the plane of polarization of light by a magnetic field. As a result, it is possible to control the transmission or reflection of incoming light. Since data transmitters are unnecessary, the is highly cost-effective. The life span will be up soon! Optical connecting box Electrical and mechanical equipment The optical fiber itself becomes the sensor, allowing flexible installation on the equipment to be measured and facilitating measurements of vibration frequency over broadband. Mudflow detection 2 Optical water immersion sensor Optical water immersion sensor based on a floating structure and using the Faraday effect*. Since the structure is simple, the failure rate is low and maintenance costs are reduced. Remote monitoring of landslide damage and slope failure etc., health monitoring of structures and bridges etc., measurement of abnormal vibrations in plant and machinery equipment, failure diagnostics. 10 s Optical switch* * Optical switch Able to monitor up to 10 lines by using optical switch (option). Optical Water Level Gauge Structure distortion measurements and plant temperature measurements. Facilitates building a smart measurement with a high level of long-term reliability and a small number of wires capable of measuring distortion/temperature at several points with a single-core optical fiber. Remote monitoring over long distances of several tens of kilometers is possible. Optimal for monitoring oversized and large-scale structures. Alarm output On/Off sensor reflecting and transmitting from optical fiber by magnetic proximity. Main component in optical water immersion and s and open/close detectors. 6 Fiber-optic vibration and impact sensing sensor utilizing the new polarization mode conversion Single detection interval: several meters - several hundreds meters Trunk line connecting box Trunk line conduit * The sensor line is fixed to the fence with cable ties. 10 FBG applied sensors

5 HEAD OFFICE Marunouchi Nakadori Bldg., 2-3, Marunouchi 2-chome, Chiyoda-ku, Tokyo , Japan TEL FAX access_sys@furukawa.co.jp * The information described here may be changed without prior notice. (The content is current as of March 2011.) Export Control Regulations The products and/or technical information presented in this publication may be subject to the application of the Foreign Exchange and Foreign Trade Act and other related laws and regulations in Japan. In addition, the Export Administration Regulations (EAR) of the United States may be applicable. In cases where exporting or reexporting the products and/or technical information presented in this publication, customers are requested to follow the necessary procedures at their own responsibility and cost. Please contact the Ministry of Economy, Trade and Industry of Japan or the Department of Commerce of the United States for details about procedures. This catalogue is printed using environmentally friendly paper and ink. JE-203 2C3 TR 100