VTT develops optical technology platforms based on miniaturised Fabry-Perot interferometers, LEDs and special sensor technologies. Platforms are created for process, automotive, consumer, bio, security and safety applications. The main markets for optical sensor solutions include diagnostic test readers, portable imaging systems and ultra-lightweight sensors in demanding applications, such as space exploration, unmanned aerial vehicles (UAVs), weather stations and environmental monitoring systems.
Over the past 20 years, VTT has developed two technology platforms for miniaturized spectrometers: Piezo-actuated and MEMS-based Fabry-Perot. We have brought totally new microspectrometers into the marketplace, thanks in large part to our excellent clean room facilities and capabilities in design and simulation, microtechnology manufacturing, hermetic sealing and sensor electronics.
The PIEZO-actuated Fabry Perot Interferometer (PFPI) is used in single-point, imaging and multipoint applications.
VTT’s PFPI technology strengths are:
Our MEMS Fabry-Perot Interferometer (MFPI) is developed for high-volume applications such as gas, fuel and biological measurement. VTT’s MFPI technology enables the production of small, robust, inexpensive and batch-producible products.
The chief benefits of VTT’s MFPI technologies include:
VTT’s Fabry-Perot technologies can also be used in many other industrial applications, such as:
We created our first LED-based 32-channel spectrometer in the 1990s. LED component technology has improved substantially since then, but the benefits of LEDs were already obvious. LEDs enable the creation of small, low cost, robust sensor solutions for process industries and also for handheld devices. LED illumination is also playing a more important role in optical analysers and machine vision systems, as component technology improves.
LED technology benefits include:
Filter-based technology platforms
VTT filter-based solutions are based on multi-channel detectors, linear variable filters (LVFs) and specific filter-wheel solutions.
Filter-based analysers offer benefits such as:
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