CAP / RF

iDEX · DISC 7 winner

Data through steel, without a hole in it.

In short

Some barriers must not be drilled: a submarine hull, a sealed pressure vessel, a subsea pipeline wall. Varuni Systems builds acoustic through-metal communication that sends data straight through the solid metal as an ultrasonic signal — the metal itself is the channel — reaching up to 1 Mbps through steel with no connector, no penetrator and no compromise of the pressure boundary.

How we do it

The technical approach.

The idea is old; making it carry real data rates reliably is the engineering.

Piezoelectric transducers, both faces

A pair of piezoelectric transducers, one bonded to each face of the barrier, turn an electrical signal into ultrasound and back. The wall becomes the transmission medium; nothing passes through it but vibration.

The metal as an acoustic channel

A solid metal wall is a resonant, multipath acoustic channel — reverberation and standing waves that a naïve link drowns in. Characterising and equalising that channel is what turns a lab demo into a usable link.

Up to 1 Mbps through steel

The link carries data at up to 1 Mbps through steel — enough for telemetry, control and sensor streams across a boundary that could not otherwise be crossed without breaching it.

PWR

Data and power across the wall

Unconfirmed — verify

The same acoustic path can carry power as well as data, so a sensor sealed permanently inside a vessel need be neither wired through the wall nor battery-limited.

MOD

OFDM modem on an FPGA core

Unconfirmed — verify

The modem uses OFDM modulation on an FPGA (Artix-7 class) signal-processing core. [UNCONFIRMED — verify the modulation scheme and the exact FPGA part before publishing.]

Frequently asked

Straight answers.

Can you send data through a submarine hull or pressure vessel without drilling through it?

Yes. An acoustic through-metal link places a transducer on each face of the barrier and carries data as ultrasound through the solid metal, so the hull or pressure boundary stays fully intact — no penetrator, no connector, no seal to fail.

What data rate does through-metal acoustic communication achieve?

Up to 1 Mbps through steel, which is sufficient for telemetry, control signalling and sensor data streams across the barrier.

Does it need a physical penetrator or a wired connector through the wall?

No. The whole point is that nothing crosses the barrier but the acoustic signal itself; there is no drilled penetrator and nothing to compromise the pressure rating of the vessel.

Can it also deliver power to a sensor sealed inside the vessel? Unconfirmed — verify

The acoustic path can carry power as well as data across the wall. [UNCONFIRMED — verify power-transfer levels and duty cycle before publishing.]

Why Varuni

Why work with us on this.

Full stack, one team

Hardware, firmware, DSP, software and geospatial under one roof in India — so a system crosses from transducer to screen without an integration seam for anyone to point fingers across.

Built for a working prototype, fast

Engagements start with a scoped prototype in weeks, not a multi-year programme — the fastest way for an overseas buyer to judge the capability is to see it run against their own problem.

Sovereign and on-premise by default

Everything runs on the client's own hardware and network, air-gapped where required, with no mandatory cloud and no data leaving the perimeter. Source and IP terms are agreed per engagement.

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