The WaveBook/512A uses a unique DSP-based A/D design to achieve up to 1 MHz sample speed while maintaining 12-bit resolution. The eight built-in channels can be expanded up to 72 channels with a wide variety of programmable signal conditioning options. Every channel is digitally calibrated automatically by the DSP in realtime, resulting in excellent accuracy and linearity.
Suitable for portable applications that require high-speed sampling and advanced triggering, including multichannel, pulse, and digital-pattern triggering - the system supports external clocking, allowing users to synchronise transducer inputs with rotating parts. Operable from either AC or DC power, the DSP-based WaveBook/512A suitable for in-vehicle, field or benchtop applications.
The unit connects to a notebook PC via the enhanced parallel port (EPP) or an optional PC-Card interface. Connection to a desktop PC is via the EPP port or an optional ISA plug-in card interface. The WaveBook/512A's architecture includes a specially designed low-noise front end for clean high-resolution measurements. This architecture includes buffered inputs on all channels, individual instrumentation amplifiers with built-in anti-aliasing filter for each channel, with each channel's gain individually programmable. The external clock input allows control of the scan rate.
The user can correlate data with mechanical motion of the system under test by synchronising the system with an external event such as the rotation of an engine crankshaft or the pulse from an encoder on a turbine. The period of the external clock can be measured with a 32-bit counter and reported back in the scan sequence. This feature makes the WaveBook/512Asystem helpful to engineers who need data collection that is time-independent and dependent on their mechanical system.
Only one cable is needed to synchronise the WaveBook/512A to any other WaveBook/512A.This allows systems to be assembled with an aggregate sampling rate of 2 MHz or more across two or more synchronized WaveBooks. Channel count can be increased above 72 without reducing the per-channel sampling rate.
The WaveBook/512A provides a 128-location scan sequencer that enables the user to program, at random, the analog channel scan sequence, associated unipolar/bipolar A/D range, input amplifier gain. The unit permits 1M samples/s scanning and gain switching over both its built-in and expansions channels (up to 72). The unit can be switched from unipolar (0 to 10 V) to bipolar (-5 V to +5 V) operation on a per-channel basis at the full sampling rate (1 µs intervals). The unit has the following input ranges: ±10 V, ±5 V, ±2 V, -1 V bipolar; 0 to +10 V, 0 to +4 V, 0 to +2 V unipolar.
The data acquisition system has the ability to scan 16 TTL-level digital inputs along with the analog inputs as part of the user-defined scan sequence. It can acquire all 16 digital lines at 1 µs per channel allowing the user to acquire digital data that can be time-correlated to acquired analog data.
Several signal conditioning and expansion options are available Included are options for accelerometers, strain gages, thermocouples, high voltage inputs, simultaneous sampling, position encoders and more. For detailed specifications, visit www.iotech.com/wavebook512A
Charl du Toit, OSIRIS Technical Systems
012 663 0100
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