Industrial intelligence / Quality inspection / Pre-Series A
Subsurface defect detection from the sound a component already makes.
Metric impact
$4.2M
annual recall risk prevented
at 1/70th equipment cost
Founders
Dr. Henrik Lindqvist / Siddharth Nair
Stage
Pre-Series A
Replaces
$450,000 X-ray or phased-array inspection cell
Investment memorandum / 04
Resonant replaces X-ray and phased-array inspection cells with a passive microphone array and a neural wave-equation solver.
Technical insight
Foundries and aerospace manufacturers use expensive phased-array or X-ray cells to find micro-fractures and porosity inside structural parts. The equipment is slow, specialized, and difficult to place inline.
Resonant listens to the acoustic decay created by a standard pneumatic pin strike. A neural wave-equation solver reconstructs internal porosity, void distribution, and material stress tensors from passive resonance. Four commodity microphones become an inline view beneath the surface.
Commodity hardware base
Measured deployment
3
production lines
0.15mm
porosity detected
2.4 sec
inspection cycle
11 days
hardware payback
Capability per deployed dollar
Resonant is integrated into high-volume aluminum casting lines, detecting subsurface porosity inline with 99.1% defect capture and a two-second inspection cycle.
Legacy architecture
$450,000 inspection cell, with 45-second batch processing
Tensor architecture
$65 drop-in sensor array, with 2.4-second inline detection
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