Leak Testing Large Flexible Parts in Challenging Conditions Using ATEQ’s DNC Technology

Leak testing large or flexible parts in a high-noise industrial environment can be challenging. External vibrations, changes in temperature, or even door-opening disturbances often cause test instability and false readings. To overcome these issues, ATEQ developed its patented DNC (Differential Noise Cancelling) technology — a breakthrough that ensures accurate and repeatable leak measurements even under harsh factory conditions.

The Challenge of Leak Testing in “Noisy” Environments

In busy production lines such as automotive, HVAC, or packaging plants, testing conditions are rarely ideal. For instance, vibrations from conveyors, compressors, or nearby pneumatic tools can interfere with pressure readings during leak tests. This “noise” leads to fluctuations in results, inconsistent data, and sometimes unnecessary product rejections.

How ATEQ’s DNC Technology Works?

ATEQ’s DNC (Differential Noise Cancelling) technology neutralizes external pressure noise in real time. Instead of relying on a single pressure channel, DNC uses a dual-channel system: one monitors the test part while the other captures ambient noise. By calculating the difference between the two, the tester isolates true leak data and eliminates environmental interference.

Key benefits:

• Improved test repeatability in high-vibration environments

• Faster cycle times through reduced test instability

• Increased accuracy for flexible or large-volume parts

• Fewer false rejections and reduced production waste

Applications Across Canadian Manufacturing

From automotive sealing systems and HVAC components to battery packs and packaging enclosures, manufacturers across Canada rely on ATEQ’s technology for precision leak detection. DNC can be integrated into ATEQ Air Pressure Decay testers such as the F620 and its large-volume version, the F620 LV. It is also compatible with the industrial-format models F670 and F670 LV.

ATEQ Canada provides local technical support, on-site demos, and calibration services nationwide — ensuring your production line maintains world-class quality, even in challenging conditions.

Interested in learning more? Contact ATEQ Canada to schedule a live demo.