The range offered by us includes Ultrasound Analysis Equipment, Ultrasound Analysis Machines, Accessories Standard Transducers and Ultrasound Analysis Engineers.

Ultrasonic Technology

Ultrasonic technology provides the most precise solution in countless applications: tightness, leaks, electrical discharge and mechanical movement.

Service brochure


As the general contractor, we first create the highest level of trust and integrity with our clients.

The sound solution

Technically, ultrasounds are sounds that cannot be heard by the human ear. In other words, sounds with a frequency above 20 kHz. Ultrasounds have a number of specific characteristics that make them useful in industrial applications.

Ultrasounds can be very precisely measured. Differences in intensity as the waves travel through a medium or body can be quantified. So various phenomena that can influence the working and quality of machines and systems adversely can be clearly identified – often without interrupting their operation.

High frequency sounds are also more directional than lower frequency. This makes it easier to pinpoint the source even in the presence of other background noise.

The other major benefit of ultrasounds is the sheer number of things that produce them. Leaks, stress, electrical discharges, cavitation (the appearance of cavities filled with damp and gas) in flowing liquids, turbulence in flowing gas or liquids; each emits ultrasounds that can be detected and measured.

Ultrasound detection and condition indicators in PdM

The context

Predictive maintenance (PdM) is about performing measurements and other observations on plant and equipment in order to develop a sensitivity to changes in the condition which might be indicators of future failure. This task is either continuous (online) or periodic (offline). The aim is to warn of a malfunction in good time in order to avoid production stopping prematurely. It is therefore based on the regular collection of objective, relevant information on the health of the equipment: one term used to cover all such measurements is “condition indicators”.

The condition indicator concept

A condition indicator is the result of processing data from a measurement. Its development or transformation indicates to the inspector that an equipment malfunction has occurred or is about to occur. This information should then trigger a suitable reaction. There is a wide range of indicators available, from very simple to highly sophisticated.

In ultrasound, four Condition Indicators are used for screening

The SDT ultrasound inspection method applies up to four Condition Indicators to each measurement taken: RMS, Max RMS, Peak and Crest Factor. Selecting and combining these indicators depending on the application, will alert the inspector in good time of a developing problem so that the appropriate response such as reducing the time interval between checks, additional measurements or scheduling a repair.


By using the four Condition Indicators correctly, the ultrasound inspector will be able to provide the first line of defence against unexpected equipment failure. Untimely production stoppages will be avoided and as soon as an alarm is triggered a suitable action can be taken.

Monitoring by ultrasound is both quick and easy, it therefore makes both economic and logistic sense – essential factors for a winning condition-based maintenance programme.

Ultrasound Analysis Projects

Looking for a quality ultrasound-analysis for your next project?