Vibration Measurement applies a vibration-sensing transducer to the vibrating object of interest, and a meter or other form of vibration signal acquisition, processing and display platform.
Vibration transducers vary widely in precision, sensitivity, stability, reliability, fragility and vibration frequency response characteristics. Transducers can generally be categorised as measuring one of three fundamental physical vibration parameters (acceleration, velocity or displacement). The outcome of vibration measurements influences the design of the principle vibration sensing element (piezoelectric, electromechanical or optical).
While there are many high quality and reputable proprietary vibration transducers commonly available, the successful execution of a Vibration Measurement depends on a specialist understanding of the source vibration of interest in terms of amplitude, frequency and presence of other extreme environmental considerations such as heat, and also the specific vibration parameters required for analysis or assessment. The vibration transducer and method of transducer attachment or optical sensing arrangement must then be carefully set up to suite these considerations.
To substantiate the validity of a professional or specialist Vibration Measurement, the vibration transducer must hold a current calibration certificate, verifying conformance with the manufacturers specifications and be issued by an organisation which is accredited to conduct the required calibration testing under the National Association of Testing Authorities (NATA). The validity of a Vibration Measurement has a record of an in-situ calibration reference check of the transducer and signal acquisition system, normally conducted with a hand-held vibration calibrator.
Engineering Dynamics is equipped in house with an extensive range of vibration transducers, including piezoelectric, electromechanical and optical. To support the demands of both laboratory and field based Vibration Measurement, Engineering Dynamics is also equipped with a sophisticated multi-channel signal acquisition system and signal processing software, forming a powerful capability to develop and maintain a high level of accuracy in all aspects of vibration isolation product development and production quality assurance.