ViB-ProX
Geophone.
Who is this for
Engineers and site managers who need compliant blast and vibration monitoring with fast setup and consistent reporting.
Key benefits at a glance
Broadband capture: DC to 1000 Hz at 4 kS/s in one record.
Simple setup: any-angle mounting on an M10 masonry bolt.
20-bit resolution: resolves low-level vibration and preserves waveform detail.
One device for all: selectable ranges from 2 g to 40 g for far-field and near-field.
All-in-one: sensor, logger, storage, power, Bluetooth and GPS in one unit.
ShockAi analytics: auto-generated reports today, with vibration prediction and rock fragmentation on the roadmap.
Battery life: 4 to 6 months continuous with GPS off or duty-cycled, about 1 week with GPS always on.
Quick start: install ViB-ProX in 3 steps
Fix the bolt: pick location and install an M10 masonry bolt.
Mount: screw ViB-ProX onto the bolt and tighten for firm coupling.
Start logging: press the button to run with saved settings, or start from the ShockAi App.
Optional: if you want a fixed reference to the blast, point the button (the X axis) toward the source. Verify the first event or test record.
Why this is faster than a geophone
Traditional geophone plus logger installs typically involve levelling the sensor, cabling to a logger, configuring polarity and sensitivity, threshold set-up and cable management.
Frequency response and low frequency performance
Geophones: velocity is flat above the natural frequency and rolls off by about 12 dB per octave below it. Amplitude is usually about 3 dB down at the corner (for example 10 Hz or 4.5 Hz elements).
ViB-ProX: measures acceleration with a flat passband from DC to 1000 Hz at 4 kS/s, so it captures slow settlement and fast shock fronts in one record.
Figures:
Figure 1. Frequency response: 10 Hz geophone vs flat accelerometer.
Figure 1a. 10 Hz and 4.5 Hz geophones magnitude overlay with corner markers.
Figure 1b. Geophone phase response.
Resolution and dynamic range
Geophone chains commonly publish 16-bit conversion, while ViB-ProX records at 20-bit.
Think of bit depth like marks on a ruler. 20-bit means 1,048,576 steps across the range; 16-bit is 65,536 steps.
Practical examples: at ±40 g the quantisation step is about 0.076 mg; at ±2 g it is about 0.0038 mg.
Each extra bit gives about 6 dB of theoretical dynamic range. Moving from 16-bit to 20-bit gives roughly 24 dB more range and about 16× finer steps at the same scale.
ViB-ProX uses fast sampling and digital filtering so effective in-band resolution is even better.
Processing: acceleration, velocity and displacement
ViB-ProX captures acceleration directly. Velocity and displacement are derived using ShotTrack’s proprietary iterative filtering algorithm that stabilises the baseline, preserves peaks and maintains phase accuracy.
Figures to attach:
Figure 4a. Acceleration a(t) for a 5 Hz tone.
Figure 4b. Velocity v(t) = ∫ a(t) dt.
Figure 4c. Displacement d(t) = ∫ v(t) dt.
Battery life
Typical continuous operation is 4 to 6 months with GPS off or duty-cycled, and about 1 week with GPS always on. External power source can easily be added, the ViB-ProX will accept and USB-C charge types, solar panels etc...
When to use each instrument
Use geophones when a regulation explicitly requires a geophone for PPV within a specified band.
Use ViB-ProX when you need DC capture, any-angle mounting, long autonomous runtime, minimal cabling or integrated analytics.
Hybrid approach: many sites use ViB-ProX for full waveform capture and insights and keep geophones for clauses that still name a geophone.
FAQ
Can ViB-ProX report in R/T/L like a geophone install?
Yes. ViB-ProX records X, Y, Z. If a spec asks for R/T/L, orient the X axis toward the source and export as R/T/L.
Does ViB-ProX meet PPV reporting needs?
Yes. Measure acceleration and derive velocity using standard PPV filters. Where the clause names a geophone, use one for that clause and include ViB-ProX for the broadband record.
What sampling should I use?
Use 4 kS/s for DC to 1 kHz passband. Lower rates are available for power saving or specific bands.
How do I maximise battery life?
Duty-cycle GPS, and keep the enclosure within its recommended temperature range.