REAL TIME VIBRATION RESPONSE DATA ACQUISITION AND ANALYSIS

Real time vibration response data acquisition and analysis

Vibration responses due to acoustic loading on the structure are measured using accelerometers mounted at critical locations on to the structure. Acquired time domain data are processed for power spectral density (Pa2/Hz) and the root mean square values are arrived in terms of ‘g.rms’.  This data acquisition system is also configured for 16 channels of strain gauge measurements.

Specifications:

Number of channels: 192 channels data acquisition and analysis – PROSIG Model: P 8048

Signal conditioner:      ICP biasing and signal conditioning – 192 Channels – B&K Model 2694

Strain measurement:  16 channels with PROSIG Strain amplifier

FACILITIES WHERE THESE TECHNIQUES ARE USED:

Acoustic Test Facility, NWTC Campus, NAL

MAJOR MILE STONES / RESULTS OF THIS TECHNIQUE:

Part of on-going Indian Space program for testing and qualification of spacecraft and launch vehicle sub systems for acoustic environment.