The gas turbine engines of today and tomorrow develop incredible levels of power. Such power, if not carefully controlled, can easily become a hazard as high-frequency vibrations are set up in the rotors and stators of the engine.

Through the use of our dynamic data technology, leading engine manufacturers are able to investigate the modal properties of their engines at the development stage, comparing the test results with their predictive models.

Our data-acquisition technology provides our customers with the knowledge that their engine test data is safely recorded in digital format, at the bandwidths necessary for the specialised analysis required for flight certification.

Today's large ocean-going vessels are powered by gas turbine engines. Many of these engines are variants of aerospace engine types. The marine variants must undergo similar testing to that of their airborne cousins.

Large vessels may use gas turbines as electrical power generators to drive electrical motors connected to the propellor driveshaft.

A gas turbine engine physically connected to a propellor shaft through a geared transmission system has its own particular vibrational stresses. Small high-speed vessels may have their propellors clear of the water on occasion. This causes considerable strain to the engine, which is most efficient when operating at constant speed. Our dynamic analysis techniques help engineers to determine the likely behaviour of engines under different dynamic load conditions.

Rotating machinery analysis is of use in the monitoring of vibrations and dynamic stresses in offshore industries such as oil rigs and exploration platforms. Gas turbines are used extensively for power generation and pumping.

Petrol and diesel engines are used in the vast majority of powered land vehicles in use throughout the world today. Competition between manufacturers to increase fuel economy and to reduce noise and chemical emissions means that engine development must be at the heart of any new motor vehicle project.

HGL Dynamics can assist motor manufacturers in their development programs by measuring vibration and noise across multiple positions on the engine, and at multiple locations within the vehicle cabin. Our high channel capacity gives us the capability to fully instrument a vehicle for simultaneous recording of up to 128 channels with a single Hawk unit.

Our dynamic vibration and noise signals are then analysed against time or engine speed, in the time domain or the frequency domain. Features dependent on engine speed can be compared against the natural modes of the vehicle. In this way, motor manufacturers can quickly associate cabin vibration problems with their source in the engine or chassis.

Many medical diagnoses depend on the ability to record and analyse the electrical activity of the human body. Such electrical activity may be detected in the form of brain waves, through electroencephalograms (EEGs), electrocardiograms (ECGs), and electromyograms (EMGs).

EEG recordings are used to identify conditions ranging from disturbed sleep patterns to epilepsy. ECGs are used to diagnose irregular heart rhythms. EMGs are used to identify muscular motor control. These signals are dynamic in nature, and are highly localised within the body, requiring monitoring at multiple locations. A typical EEG recording may involve 20 or 30 electrodes placed on the patient's head.

The diagnosis of medical conditions based on such recordings requires analysis based on the detection of particular signature patterns within the signals, and the correlation of these patterns between sensor locations. The dynamic acquisition and analysis technology of HGL Dynamics can acquire simultaneous signals at high bandwidth, allowing rapid correlation and pattern identification, easing the diagnosis process and improving reliability.