What is a VOD probe cable and how does it work?

A VOD probe cable is a sacrificial continuous-resistance coaxial cable that is inserted along the length of an explosive charge. As the detonation front travels through the cable, it progressively short-circuits the conductors. A VOD recorder measures the resistance collapse over time and converts it into a velocity-of-detonation profile across the charge.

Which probe cable variant should I order?

Standard Green class covers most commercial blasting and quarry rounds. Blue (LR) is for deep-hole production blasts and long charge columns. HT is for hot-hole and sensitized emulsion environments. Kevlar-reinforced (K) is for abrasive borehole conditions and rough handling. SmartCable precision is for laboratory and explosives R&D programs.

What resistance per meter do you support?

Per-meter resistance is set per program. We commonly support values in the 10 Ohm/m range used by industry-standard VOD recorders, but we will match your recorder calibration and hold the lot resistance inside a tight tolerance window (typically ±2%) confirmed by lot-level measurement.

How long can a single VOD probe cable be?

Standard probe cables run from 1 m to roughly 30 m. Long-range LR variants extend that practical limit through reduced parasitic capacitance. For very long deep-hole programs, contact engineering with the column length, recorder model, and acceptable signal decay so we can confirm the right cable construction.

Are these probe cables single-use or reusable?

VOD probe cables are sacrificial. They are consumed in the blast. The product is engineered to survive transport, hole loading, stemming, and pre-detonation handling — and to present a clean baseline resistance to the recorder until the detonation front arrives.

What recorder-side terminations do you offer?

BNC, banana plug, screw-lug, and custom recorder-specific terminations are all supported. Tell us the VOD recorder model used in the field and we will match the launch geometry so probe cables drop into the existing fixture without on-site adaptation.

What documentation comes with each shipment?

Every shipment includes a lot-level certificate documenting the measured per-meter resistance, manufacturing date, and lot identifier. R&D and academic customers can request unit-level serialization for fully traceable cable-to-trace correlation.

What is your minimum order quantity?

We support prototype lots for initial recorder calibration and process qualification, scaling up to recurring multi-PO production volumes (hundreds of kilometers per year). Contact engineering with your forecast and program cadence for a phased proposal.

Blast Instrumentation · Continuous-Resistance Probes

VOD Probe Cable Custom Sensor Cable for Velocity of Detonation Measurement

Sacrificial coaxial probe cables engineered for in-situ Velocity of Detonation (VOD) measurement of explosive charges. Tight resistance tolerance per linear meter, deterministic burn profile, and connectorized leads ready for VOD recorders. Built for mining, quarrying, military demolition R&D, and explosives manufacturer test labs.

±2%

Resistance Tolerance / m

5 variants

Std · LR · HT · Kevlar · Smart

100%

Continuity & Resistance Tested

ISEE

Industry-Aligned

VOD probe cable assembly line for blasting instrumentation

VOD Probe Cable Manufacturing Capabilities

Built for explosives instrumentation where every meter of probe cable must carry a deterministic resistance signature before it is consumed in the blast

Standard VOD Coaxial Probe (Green Class)

Single-shot resistance probe cable for short to medium VOD column lengths. Tight per-meter resistance tolerance allows the VOD recorder to convert the time-domain resistance collapse into a velocity profile across the burn front. Used in commercial blasting, quarry production rounds, and field-grade explosives QA.

Continuous-resistance design
Tight ±2% per-meter tolerance
Color-jacketed for field identification

Long-Range Probe (Blue Class / LR)

Extended-length probe cable construction for deep-hole production blasts, large-bore mining charges, and long-column initiation studies. Conductor and dielectric stack tuned for low parasitic drift over 30 m+ probe lengths so the VOD recorder still sees a clean resistance decay.

Long-column construction
Reduced parasitic capacitance
Stable signature over 30 m+ runs

High-Temperature Probe (HT Class)

Tighter-tolerance probe cable engineered for hot-hole, sensitized emulsion, and elevated-temperature charge environments. Insulation and shield materials chosen to resist short-term thermal pre-stress without distorting the resistance baseline before the detonation front arrives.

Higher-temp insulation stack
Thermally stable conductor
Pre-blast baseline integrity

Kevlar-Reinforced Probe (K Class)

Mechanically reinforced probe cable for handling-heavy field deployments and abrasive borehole conditions. An aramid (Kevlar-style) braid sleeves the cable to protect the probe element during hole loading, stemming, and rough handling so the deterministic resistance signal survives until the blast.

Aramid braid reinforcement
Abrasion-resistant outer jacket
Improved tensile margin

SmartCable Precision Variant

Highest-precision probe cable construction for laboratory VOD measurement, ISEE-style explosives characterization, and academic explosives research where the tightest resistance tolerance and the cleanest VOD trace are required. Each lot characterized and serial-tracked.

Strictest resistance window
Lot-level characterization report
Lab and R&D grade

Connectorized Leads for VOD Recorders

Probe cables ship with a recorder-side termination matched to the VOD instrument family used in the field — BNC, custom screw-terminal, or recorder-specific banana / spring leads. The hot end is left bare for charge insertion or supplied with an initiation interface per project spec.

BNC, banana, screw-lug options
Bare hot-end for charge insertion
Recorder-compatible launch geometry

Where VOD Probe Cables Are Used

Single-use sacrificial probe cables for explosives test programs and operational blast QA across mining, defense, and research

Open-Pit and Underground Mining

VOD probe cables for production blast QA, fragmentation tuning, and bench-blast diagnostics. Mine engineers verify that the as-loaded explosive column actually detonates at the designed velocity so fragmentation, vibration, and yield match the model.

Quarry and Aggregate Production

Resistance probe cables for measuring detonation propagation through emulsion, ANFO, and watergel mixtures across short-bench production rounds. Used to verify that on-site sensitization and column geometry give the expected VOD.

Explosives Manufacturer R&D Labs

High-precision probe cables for new-product detonation characterization. Explosives developers feed clean VOD traces into shock physics models to validate cap sensitivity, gap-test results, and energy release at scale.

Military Demolition and EOD R&D

Probe cables for shaped-charge characterization, breaching charge validation, and demilitarization throughput trials. Pairs with high-speed cameras, pressure transducers, and EOD instrumentation harnesses across the same blast event.

Underwater and Subsea Blast Programs

Jacketed and reinforced probe cable variants for underwater shaped-charge tests, subsea cutting operations, and naval EOD R&D where the cable must survive hydrostatic insertion before the detonation front arrives.

Academic and National-Lab Programs

Laboratory-grade resistance probe cables for shock wave research, energetic materials studies, and university explosives programs aligned with ISEE practice and conventional shock-physics measurement protocols.

Technical Specifications

Probe Type	Continuous-resistance coaxial probe (Pollet / Cyborg-style resistance method)
Per-Meter Resistance	Custom value per program (e.g. 10.8 Ω/m), held to ±2% baseline tolerance
Length Options	1 m to 50 m+ per probe, supplied on labelled reels or pre-cut to length
Outer Jacket Color	Variant-coded (green / blue / orange / yellow) for field identification
Operating Temperature (Pre-Blast)	Standard: 0 °C to +60 °C · HT class: tolerant of short-term hot-hole exposure
Mechanical Reinforcement	Standard, aramid-braided (Kevlar-style), or armored variants on request
Recorder-Side Termination	BNC, banana plug, screw-lug, or recorder-specific custom connector
Hot-End Preparation	Bare conductor for direct charge insertion, or sealed initiation interface per drawing
Workmanship Standard	IPC/WHMA-A-620 cable assembly workmanship, single-use sacrificial design
Quality Testing (Pre-Ship)	100% continuity, 100% end-to-end resistance check, lot-level resistance/m verification
Documentation	Cert of Compliance with measured resistance/m per lot; serialization on request for R&D programs
Compliance	IPC/WHMA-A-620, RoHS, REACH; export consideration aligned with end-user blast program documentation

Why Blast Engineers Choose Us for VOD Probe Cables

Probe cable is consumed in milliseconds — but every meter must be deterministic before that moment

Resistance-Per-Meter Discipline

Each lot is sampled and characterized to confirm the per-meter resistance value matches the program spec inside a tight ±2% window. The VOD recorder's velocity calculation only works if that number is trustworthy.

Variant Matrix Standardization

We build a matched family of probe variants — standard, long-range, high-temperature, Kevlar-reinforced, and precision lab — so a blast program can swap variants without re-tuning the VOD recorder calibration curve.

Single-Use Sacrificial Design Mindset

Because the cable is destroyed in the blast, the entire workmanship target shifts: it has to survive transport, hole loading, and stemming, and present a clean baseline to the recorder — not survive in service. Our process windows are tuned for that specific lifecycle.

Recorder-Compatible Termination Library

We maintain a library of recorder-side terminations to match the VOD instrument the field engineer is actually using, so probe cables drop into the existing fixture without on-site adaptation.

Field-Validated Mechanical Protection

Aramid-reinforced and armored variants are specified by mining engineers who have lost probes to abrasion, sharp shotrock, or stemming impact. We carry those reinforcement constructions in-house, not as a custom-only NRE add.

Documentation for High-Reliability Programs

Mining, military, and R&D customers need traceability. Each shipment includes a per-lot measured resistance value, manufacturing date, and lot ID — enough to back-trace any anomalous VOD trace to the cable lot that produced it.

Real Project Snapshot

An anonymized example from our case bank — illustrates how a VOD probe cable program ramps from first sample to recurring production.

Industry

blasting-instrumentation

Region

North America (Canada-based OEM)

Year

2025-2026

Scenario: A Canadian blast-instrumentation OEM serving global mining and military demolition customers required a long-term supplier for a 5-variant VOD probe cable family — standard, long-range, high-temperature, Kevlar-reinforced, and a precision laboratory grade — to replace an aging incumbent supplier whose resistance-per-meter consistency had drifted.

Challenge: Each variant had a different per-meter resistance window. The CEO and the VP of Operations both engaged directly on technical and commercial terms because probe cable quality directly affects the customer's downstream VOD recorder calibration and their own end-customer mine safety reporting.

What we did: We characterized the incumbent cable, matched each variant's resistance window, and built a manufacturing window narrower than the customer's acceptance spec. Production runs are released only after a lot-level resistance/m check and a 100% end-to-end continuity test. Multi-PO supply with split-shipment air + sea logistics aligns with their seasonal mining demand.

Result: Moved from first sample to multi-PO recurring production within a single fiscal year. Now supplying a multi-variant probe cable family at production volume, with documentation that the customer forwards to their own mining and military end-customers as proof of supply-chain consistency.

Concrete numbers

5 probe cable variants supplied
±2% per-meter resistance tolerance
500 km+ cable shipped under recurring POs
Split air + sea logistics per season
Direct CEO + VP engagement (technical + commercial)

From RFQ to Production

A repeatable six-step process used on every VOD probe cable program

Program & Recorder Review

We review the VOD recorder family, probe length range, target resistance per meter, and field conditions before recommending the right variant family.

Variant Specification Lock

For each application — standard, long-range, high-temperature, Kevlar-reinforced, or lab precision — we confirm conductor stack, dielectric, and reinforcement before sample release.

Sample Build & Characterization

Initial sample lots are produced, measured for per-meter resistance, and compared to your recorder calibration. Adjustments locked into the production process window.

100% Continuity + Resistance Verification

Every probe cable is end-to-end continuity tested and resistance-checked before lot release. Sample-level per-meter resistance characterization on each production lot.

Documentation & Serialization

Lot certificate of compliance documents measured resistance values, manufacturing date, and lot ID. Serialization available for R&D and academic programs.

Logistics & Repeat Production

Reels labelled, packaged for transport, and shipped on mining-season schedules. Recurring POs supported with split air + sea logistics where seasonal demand requires.

Need a Reliable VOD Probe Cable Supplier?

Send your VOD recorder model, required probe length, target resistance per meter, and environmental conditions — we will spec the right variant and quote prototype + production lots in parallel.

Frequently Asked Questions

Related Capabilities

Pages adjacent to VOD probe cable that pair with the same blast program