Sensing Applications, OTDR used to Detect Localized Measurand The use of OTDRs is a well-established technique for fault/imperfection location and diagnostics in fiber optic communications applications, as well as in manufacturing, warehousing, installation, and maintenance. However, OTDRs are also used in specialty or sensing applications; OTDRs can be used to detect localized measurand - induced variations in the loss or scattering coefficient of a of a continuous sensing fiber. OTDRs are often used with intrinsic distributed sensor systems, which are particularly attractive for use in applications where monitoring of a single measurand is required at a large number of points or continuously over the path of fiber.
A Continuous Distributed fiber optic sensor system involves the optic fiber with the sensors embedded with the fiber, plus electronics, connectors, data acquisition module, software, and miscellaneous components; however, ElectroniCast quantifies the optical fiber, cable (fiber jacket) and the sensor elements in our forecast data (only).
Some distributed fiber optic sensors use multiple Point sensors, which are networked together with optical fiber, creating a point-to-point (multi-point) distributed line; however, we do not consider it a continuous (non-stop) distributed intrinsic fiber optic sensor line. The very nature of a Point sensor, by our definition, is a stopping point therefore the sensor line is not continuous.
According to the Fiber Optic Sensor Market Forecast study by ElectroniCast, the consumption (use) value of fiber optic sensors used in continuous distributed systems will increase from $608 million last year in 2011 (up from $435 million in 2010) to $3.814 billion in the year 2016.
For more information about the ElectroniCast Fiber Optic Sensor Market Forecast... contact me at stephen_montgomery@electroniCastconsultants.com
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