Applied Dynamic Measurements - Measurements

Measurements

Acoustic
Vibration
Rotating machinery
Strain
Pressure
Temperature
Electrical signals

Expertise and Facilities

Signals and measurements are the core areas of ADM’s expertise. With skill to develop its own precision measurement instrumentation or use commercially available equipment, it is possible to carry out measurements in most situations. Accurate and meaningful measurements are the basis of problem solving in the environment, industry and the research laboratory. Understanding the nature of signal classes, recognising the structure of different phenomena and understanding the mechanisms associated with particular processes are essential in the effective identification and measurement of signal data. Over recent decades signal analysing instruments have become progressively more complex, offering numerous pre and post processing functions. Frequently, the user is remote from the signal measurement process by layers of digital sampling, filtering, averaging, windowing etc and without experience it is sometimes impossible to determine whether a valid measurement has actually been made, and interpretation becomes a matter of speculation. Worst case scenarios occur when signal data is recorded after conversion to a different domain, or the signal structure is inadvertently changed at some stage in the measurement process and the original signal can no longer be retrieved. The staff at ADM have many years of experience in analysing signal data associated with numerous sources and processes, and are experienced in signal processing techniques and the intelligent use of a range of instrumentation in both field and laboratory settings. The following categories of measurement are typical:
Time Domain Linear and filtered Impulse Damping Event triggered Noise measurements Frequency Domain Waterfall Run up / run down Order tracking FRF Transfer function Phase Coherence Swept sine Noise spectral density Harmonic distortion Group delay Rotational Fundamental + harmonics Shaft displacement Orbit (eccentricity) Torsional Strain Static and dynamic Pressure Static and dynamic Acoustics Linear and weighted Octave and 1/3 octave Reverberation decay Track tonal components Vibration Acceleration, velocity, displacement DC accelerometer measurements Steady state Impact response Damping Modal density FRF Structural excitation Laser vibrometer Electrical Signals Below 200 kHz Data logging and recording

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