Non-contact Precision Metrology
A bridge settles by microns under load. A bearing starts vibrating abnormally months before it fails. These changes are invisible to the eye and out of reach for contact sensors. Ubision measures them with visual displacement measurement, laser Doppler vibrometry and mmWave radar sensing — whichever your site actually allows — and turns them into data you can read, trace and act on.
Core Technology
Optics resolves detail. Radio waves see through. Holding both is what earns us the right to talk about choosing the optimal method.
Sub-pixel Image Correlation
Long focal length optics and sub-pixel image correlation lock onto dozens of targets from over a hundred metres away and output full displacement time histories. No cabling on the structure, no shutdown — one setup covers the entire span.
Coherent Optical Sensing
A laser illuminates the surface; the returned frequency shifts with surface motion, and demodulation yields velocity and amplitude directly. Zero added mass makes it the only option for targets that are small, hot, fast-rotating, or simply cannot have a sensor attached.
Software-defined RF Sensing
Software-defined radio makes waveform, bandwidth and algorithms fully reconfigurable: the same hardware performs FMCW ranging and vibrometry, or becomes a multi-target tracker when the site demands it. Rain, fog, dust, total darkness and non-metallic occlusion make no difference.
Sensor Selection
Site conditions determine which physical quantity is realistically obtainable. Select your constraints and see how the three approaches compare.
Multi-modal Fusion
Forty seconds of continuous record from a single bridge. Fog rolls in, a train crosses, a bearing begins to vibrate — watch which sensor is the only one still working in each window.
The richest spatial coverage — dozens of points across the span at once. But once visibility drops, signal-to-noise collapses; by second 13 the channel is gone.
Coarser than optics, yet completely indifferent to fog. The train crossing happens to fall inside the optical blackout — radar alone holds that window.
One point only, but it hears what neither of the others can — at second 30 the bearing develops a 0.8 μm high-frequency anomaly.
Applications
Deflection histories and bearing displacement as trains pass. On foggy nights the mmWave channel takes over so the record never breaks.
Blade modes and tower sway captured at range. In humid, fog-prone offshore conditions the radar channel keeps working.
Vibration signatures of spindles, gearboxes and servo mechanisms — for accuracy verification and predictive maintenance.
Modal testing, dynamic material response and micro-device vibration calibration, with traceable experimental data.
Our Name
悟道追光见微知著
Pursue the light to grasp the way.
See the minute to know the whole.
UBISION = UBIQUITOUS · PRECISION · VISION
Our Chinese name, 悟见 (Wùjiàn), is drawn from a classical line. For us it was never a metaphor: the light we pursue is laser and imaging optics; the minute we see is micron displacement and nanometre amplitude; the whole we come to know is the structural safety and machine condition those faint signals reveal.
Ubision fuses Ubiquitous, Precision and Vision. The vision here is not confined to visible light — millimetre waves see just as well through rain, darkness and occlusion. The visible spectrum is a narrow slice of the electromagnetic one, and we do not limit ourselves to that slice.
We believe the most consequential information in engineering hides in the smallest magnitudes — and that reaching it begins with choosing the right instrument.
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you need to measure