Structure-borne Vibration Detecting Service
What Kinds of Products That PAL Could Measure?


1. Small Air-moving device, such as bowlers and axial fans.

2. IT relative products, such as notebook, which have fans or coolers inside.

3. Audio system, such as loud speaker, which can generate strong vibration to affect their sound quality.

What PAL Could Analyze?


1. Cross check with SPL, SWL, or SQ, to detect structure-borne noise

2. Displayed in FFT, time-history graph

3. Tri-axial measurement






Accelerometer, PCB Piezotronics 352C65

Sensitivity: (±10%) 100 mV/g (10.2 mV/(m/s²))

Measurement Range: ±50 g pk (±491 m/s² pk)

Broadband Resolution: (1 to 10000 Hz) 0.00016 g rms (0.0015 m/s² rms)

Frequency Range: (±5%) 0.5 to 10000 Hz

Weight: 0.070 oz (2.0 gm)


Accelerometer, Dytran 3225F1

Sensitivity: (±10%) 100 mV/g

Measurement Range: ±50 g pk

Frequency Range: 1.6 to 10000 Hz

Weight: 0.6 g


Multi-channel frequency analyzer



         Artemis Basic Analysis Software

         Playback Module

         Advanced Analysis Module

         Advanced Filter Module



Fig.1 Example for Cross checking with SPL to detect structure-borne noise

Fig.2 Standalone Axial Fan Vibration Measurement