| 摘要 |
Distributed selectable latent fiber optic sensors include a plurality of fib er grating sensors 12 connected to an optical fiber 10 and installed in an oil/gas well 15 and an instrumentation box 20 at the surface which selects which of the sensors 12 to activate, or provide output data from to a display 26 or to a remote link 32 , suchas the internet. The box 20 has a transceiver/converter 22 which provides a source optical signal 14 and receives a return optical signal 16,18 and which converts the return signal 16,18 to a signal indicative of the parameters being measured by the sensors 12. A sensor selection signal is provided from the remote link 32, the keyboard 28 to the converter 22 which is indicative of which of the sensors 12 to be selected t o provide output data for. The end user only pays for the sensors 12 that are selected . Each of the sensors 12 may be similar to any fiber optic grating-based sensor that measures one or more parameters, such as pressure, temperature, liquid fraction, flow , acoustic, seismic, resistivity, corrosion, pipe wall build-up, or other parameters.</S DOAB> |
