In non-destructive testing (NDT), accuracy and speed are non-negotiable. The more precise the scan and the faster the setup, the more reliable the outcome—and the less costly the downtime. That’s why inspection teams across energy, infrastructure, and industrial sectors are turning to evoSonic’s flagship solutions: evoARC and evoDUAL.
These field-ready tools streamline inspection workflows, reduce rework, and enable high-resolution data acquisition with minimal setup. In this article, we’ll explore how these products work, where they shine, and why they’re changing the standard for encoded NDT inspections.
The Need for Smarter Scanning Solutions
Traditional encoded scanning systems often rely on contact-based methods that require extensive surface prep, line marking, and multiple setup points. These approaches:
- Slow down inspections
- Increase operator fatigue
- Introduce variability between scans
- Struggle in curved or constrained environments
evoSonic’s inspection tools solve these problems at the source—by eliminating unnecessary contact, simplifying alignment, and enabling faster, more repeatable results.
What is evoARC?
evoARC is a non-contact, single-axis encoder that transforms how axial inspections are performed. Built to mount seamlessly on third-party scanners like the Evident FlexoForm™, evoARC captures accurate scan data without wheels, without drag, and without the need for surface treatment.
Key Benefits:
- No line marking required – reduces prep time and user error
- LED position indicators – quickly locate 12, 3, 6, and 9 o’clock
- 0.013mm precision tracking – high-resolution, repeatable data
- IP67 + MIL-STD-810G rated – durable in harsh field conditions
- Tool-free mounting – attaches securely in seconds
From pipelines to vessels and weld seams, evoARC delivers fast, accurate, and repeatable scan results.
What is evoDUAL?
evoDUAL is the world’s smallest dual-axis corrosion scanner, designed for high-resolution scanning in tight or complex geometries. Built for use with the Evident REX1 Dual Linear Array™ probe, evoDUAL enables simultaneous circumferential and axial scanning—without line marking or track setup.
Key Benefits:
- Dual-axis encoded scanning in a pocket-sized form
- Single datum point setup – no track marking needed
- Tool-free operation – intuitive and fast to deploy
- Compatible with pipe elbows, vessels, launchers, and receivers
- Built for harsh conditions – same IP67 and MIL-STD durability
From spot checks to full surface mapping, evoDUAL delivers precision scanning that doesn’t slow you down.
Real-World Applications and Advantages
Oil & Gas
Scan piping, elbows, and tank walls with minimal prep. evoARC simplifies axial inspections, while evoDUAL allows technicians to map corrosion across two axes—ideal for identifying pitting and MIC.
Industrial Facilities
evoARC and evoDUAL eliminate time-consuming setup and rework. Get more scans done with fewer adjustments—ideal for refineries, chemical plants, and remote inspection locations.
Marine & Offshore
Rely on field-ready gear. evoSonic tools are vibration-tested, water- and dust-resistant, and designed to function on wet or uneven surfaces.
Comparing evoARC and evoDUAL
| Feature | evoARC | evoDUAL |
| Encoder Type | Single-axis (axial) | Dual-axis (circumferential + axial) |
| Contact | Non-contact | Minimal-contact with guided setup |
| Line Marking | Not required | Not required |
| Setup Time | Seconds | Seconds |
| Use Case | Weld inspection, axial scans | Corrosion mapping, curved surfaces |
| Ideal Geometry | Pipes, tanks | Elbows, vessels, confined areas |
| Mounting | Tool-free | Tool-free |
Field-Tested for Real Conditions
Both evoARC and evoDUAL are built to handle the toughest field environments. Their components are:
- Rated IP67 for dust and water resistance
- Certified to MIL-STD-810G for rugged field use
- Designed for intuitive operation
evoSonic developed evoARC and evoDUAL in direct response to the frustrations voiced by inspectors and engineers working in the field. From simplifying setup and eliminating line marking to ensuring rugged, repeatable performance, every feature was built with real-world input in mind.
Frequently Asked Questions (FAQs)
1. Can evoARC and evoDUAL be used together?
The evoDUAL incorporates an evoARC, which is what gives it the 2nd encoding axis. Both tools share common design principles, ports and cables, so it’s quick and easy to switch between them for different applications on the job.
2. Do I need to mark lines or tracks before scanning?
No. The evoARC and evoDUAL eliminate the need for line marking, using visual feedback and intuitive alignment. No more stitching together scans.
3. What scanner systems are compatible with evoARC?
The evoARC can be used with single probe mounts like A10 and A31 models for circumferentially encoded weld inspection. evoARC supports all PAUT acquisition systems using Lemo 1K.316 and Quadrature Encoding—making it easy to drop into your existing workflow without extra adapters or upgrades.
4. How durable are these tools in tough environments?
Both devices are IP67-rated and MIL-STD-810G certified, ensuring resistance to water, dust, vibration, and temperature fluctuations.
5. Can new technicians use these tools effectively?
Absolutely. Both evoARC and evoDUAL are designed for intuitive, tool-free operation. Visual LED indicators and simplified setup help reduce training time.
6. How do these tools reduce rework?
By eliminating guesswork and improving data accuracy from the start, evoARC and evoDUAL help teams capture better results on the first pass—reducing retakes and delays.
Ready to Upgrade Your Inspection Workflow?
evoARC and evoDUAL are compact, intuitive, and field-proven solutions designed to help your inspection team move faster—with greater precision and less frustration.
Explore our products and request a demo to see how evoSonic is helping integrity professionals lead the next evolution of NDT.