A single fibre-optic cable turned into thousands of virtual sensors, measuring temperature, strain, vibration or acoustic signature continuously along a pipeline, well or cable run.
Miniaturised MEMS & photonic sensors for harsh areas
Chip-scale mechanical and optical sensing elements bringing multi-parameter measurement (pressure, gas, particulate) into form factors small enough for previously un-instrumented locations.
Short entry. This page summarises our current placement. Full, sourced analyses are published first for the technologies closest to practical use; see the list of full analyses.
How it works
MEMS sensors are mechanical structures etched into silicon using semiconductor manufacturing methods: diaphragms that deflect under pressure, resonators whose frequency shifts with density or mass, and micro-hotplates that react to specific gases. Because they are made on wafers, they are small, repeatable and inexpensive in volume.
Photonic sensors measure with light. Miniature infrared sources and detectors identify gases by the wavelengths they absorb, tunable lasers do the same with higher selectivity, and gratings written into optical fibre shift their reflected wavelength with strain or temperature. Integrating optical components on a chip is shrinking instruments that once filled a cabinet.
Why it matters
Opens up measurement points — inside rotating equipment, on small-bore piping, in confined hazardous areas — that conventional transmitter housings can't physically reach.
Where it fits
Near-term industrial uses are dense gas-detection networks, compact pressure and differential-pressure measurement, particulate and air-quality monitoring, and sensing inside equipment where a conventional transmitter will not fit. Optical sensing is also attractive in hazardous areas because the sensing point itself can be free of electrical energy.
Why we place it at the Emerging Idea stage
Strong momentum from consumer/automotive MEMS spilling into industrial-grade, IP66/ATEX-rated variants. Estimated time to the Proven in Use stage: 5–10 yrs. What the stages mean.
Key risk
Industrial-grade certification (SIL, ATEX/IECEx) and long-term drift performance lag several years behind the consumer-grade base technology.
Questions to ask before committing
- Is the sensing element proven in the temperature, vibration and chemical exposure of your application, or only in a benign one?
- What is the documented long-term drift, and how will the device be checked or recalibrated in service?
- Does the complete assembly, not just the chip, hold the hazardous-area and functional-safety approvals you need?
Standards and terms to know
- MEMS
- Micro-electro-mechanical systems, miniature mechanical devices built with semiconductor processes.
- NDIR
- Non-dispersive infrared, a common optical method for measuring gas concentration.
- Fibre Bragg grating
- A structure in optical fibre that reflects a wavelength which shifts with strain or temperature.
Related technologies
See this entry on the full maturity map · All Instrumentation entries · How placements are made. Stage and time-horizon placements are editorial judgements based on public information as of October 2026, not engineering, safety or investment advice; see the Terms of Use.