How can acoustic and thermal images be used together with the SONASCREEN 2 for condition assessment?

The SONASCREEN 2 combines an acoustic camera with an integrated thermal imaging camera.

This allows both acoustic anomalies and temperature differences within a system to be detected and considered when assessing an inspection situation.

What does the acoustic image show?

The SONASCREEN 2 microphone array detects audible and ultrasonic sound signals.

The device uses these signals to calculate an acoustic image and spatially display the position of the detected sound source.

This can be used to locate, for example:

• leaks,
• electrical partial discharges,
• other abnormal sound sources

within the camera image.

What does the thermal image show?

The integrated infrared camera detects thermal radiation from the observed surface and displays temperature differences as a thermal image.

Infrared display parameters include:

• display mode,
• temperature unit,
• measurement range,
• resolution,
• dynamic range,
• color palette.

Depending on the selected measurement range, the infrared camera can measure temperatures up to several hundred degrees Celsius.

What is the advantage of combining both methods?

Acoustic and thermal measurements detect different physical effects.

An anomaly may appear:

• acoustically as an ultrasonic signal,
• thermally as a temperature deviation, or
• through both effects simultaneously.

Viewing both types of information in parallel can therefore provide additional indications and support the assessment of a system.

The thermal image does not replace the acoustic measurement, and vice versa. Both methods provide different information that can be considered together.

How is the infrared function activated?

The SONASCREEN 2 software provides the measurement modes:

• Ultra
• Ultra with Infrared

The infrared camera is available in the user interface when the corresponding infrared measurement mode is activated.

The SONASCREEN 2 can therefore provide acoustic, optical, and infrared images within the same measurement environment.