Instrumentation and Data Acquisition

Data Acquisition System

LVDTs, strain gauges (SR4), Demacs, and held-hand microscopes are available in the structural laboratory to allow measuring of deflections, strains and cracking while performing structural testing. The collected measured data is stored into a 64-channel HBM Spider 8 data acquisition system. The HBM Spider 8 system is a new type of data acquisition for parallel, dynamic measurement. These characteristics are desirable in the future for cyclic loading tests simulating repeated vehicle loading and earthquakes type loading. This new instrument is also more versatile, because each of the 64 channels can accept both the high-voltage signals from LVDTs and the low-voltage signals from SR4 strain gauges.