As we understand it, the key requirements that have to be fulfilled by an outstanding measurement system for taking acoustic and vibration-related measurements are as follows:

• All standard measuring techniques are available simultaneously
• the measurements have to be reproducible
• the measurements can be effectively evaluated and documented
• the system can grow to accommodate requirements.

All analyses are based on recorded time signals which, depending on the task in hand, are recorded using different sampling rates.

Spectral analyses involving transforming signals from time to frequency domain, observations of overall levels or third-octave analyses permit detailed analyses.

Testbenches and Troubleshooting

PAK data acquisition systems perform these tasks perfectly. The user decides whether to record just the throughput data which are then analyzed later, or if the analysis data is to be saved at the same time (online analysis). Measurement results can be displayed directly in a prepared diagram, thereby complying with the company’s or customer’s standards. This means that PAK data acquisition systems are equally predestined for both test bench analyses and troubleshooting.

At a Glance:

• Recording throughput data

Recorded throughput data can be analyzed at a later time – even if the parameters have changed. Time signals can be listened to using headphones for example.

• Signature analysis

Real-time analyses in the frequency domain with the Fast Fourier Transformation (FFT).

• Sound level sensors / detectors

Recording of up to three overall sound levels for one time domain signal simultaneously, for example with different time constants and frequency evaluations.

• Third-octave analysis

As well as octaves and one-third octaves, 1/6th, 1/12th and 1/24th octave bandwidths are also available. The digital filter banks in the time domain fulfill class 0 specifications in compliance with DIN EN 61260 (IEC 1260).