Technology

Sensing Platform & Technological Focuses

Wavelength-division-multiplexing(WDM) and Time-division-multiplexing (TDM) based sensor multiplexing platform has enabled versatile sensing instrumentation that can be suitable either for large-scale industrial process monitoring and diagnostic (M&D) applications, such as Oil/reservoir field, or for small-scale healthcare application, such as physiological device. This platform allows various FBG-based sensors, distributed pressure sensor (DPS), distributed acoustic sensor (DAS), distributed strain sensor (DSS), and distributed temperature sensor (DTS) to be deployed in any geometrical location. The acquired signals from each kind of sensor could be used to interrogate either slow-varying measurand or dynamic measurand, and the signals can be shared globally via a supervisory control and data acquisition (SCADA) system. Furthermore, an engineer could site at remote location for monitoring and diagnosing the obtained information from the sensors for control and optimization.

A fiber sensor interrogator could be based on FBG optical sensing interrogator (such as MOI sm125/sm130) with a multi-channel multiplexer (such as MOI sm043) or based on Raman optical time-domain reflectometry (OTDR) DTS system for building a sensor network. In some case, one can integrate both FBG optical sensing interrogator and OTDR as a hybrid fiber sensor interrogator for some specific sensing applications.

BI_Platform


Although FBG-based sensor can be used to measure many physical measurands, such as pressure, temperature, strain, vibration, displacement, acceleration, chemicals, and industrial gases etc., the primary challenges lie in the sensor package and installation for harsh environmental deployment. Raman DTS has been used in the Oil/Gas and power industries for years, it still has great challenge in provide accurate temperature logging whenever the hydrogen darkness is not negligible. In addition, distributed pressure sensing (DPS) and distributed acoustic sensing (DAS) have been developed for years but it is still at their early stage for solving real industrial problems. BI is collaborating with University Laboratories on following research, development, and engineering (R&DE) with technological focuses on:

Sensor Package Technology
  • Harsh environmental specific single sensor and distributed sensing cable design;
  • Hermetical sensor package design for hydrogen-rich downhole environments;
  • Distributed and spoolable acoustic & strain sensor package.
Fiber Gas Sensor Technology
  • Harsh environmental specific gas sensor (High-purity H2, CO2, H2S, CO, and CH4 etc.) sensor design and prototyping;
  • Hermetical gas sensor package design for hydrogen-rich electrical generator and downhole environments;
  • Distributed and spoolable fiber CH4 gas sensor package and instrumentation.
  • Novel fiber Bragg grating and nanomaterial integrated gas sensors
  • Distributed fiber optical absorption based transmission and reflection based gas snesors
  • Novel fiber gas sensor for hydrocarbon and hydrogen gas purity, quality, and cleanliness.
Nanomaterial-based Sensor Technology
  • Ultrathin and multilayered engineered nanoscaled functional materials for novel chemical gas sensors;
  • Anti-hydrogen-permeation nanoscaled H2-barrier material for downhole sensors;
  • Scintillate nanoscaled materials for fiber radiation sensors;
  • Novel nanostructural voids & sponge, and particle magnetic materials for electromagnetic sensors.
  • Novel nanostructural voids & sponge, and particle chemical-active materials for biomedical sensors.