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Richter Continuous Acquisition

54ASC announces the launch of the Richter System for continuous acquisition of microseismic and acoustic data. The Richter System performs continuous data streaming at frequencies up to 10 MHz directly to hard drive. The length of recording time is only limited by the hard-drive disk space available; a typical 2Tb hard drive array provides 5 hours of continuous data streaming at 10MHz. For users requiring longer recording times, the system can be customised with larger hard drive space or a networked SAN.
The system is designed to record entire continuous time series to examine the microcracking and deformation processes from acoustic emissions occurring during laboratory rock-fracture experiments. It is then possible to evaluate, dissect, process and interpret this data using continuous waveform and sonogram visualization, and standard scaled seismic techniques.
The Richter System can also provide triggered Acoustic Emission acquisition that is typical of AE monitoring systems. The system triggering can be performed by the OMNIBUS Trigger and Hit-Count Unit developed by ASC.

The Richter System is constructed from a set of up to 10 “mini-systems” consisting each of a19” rack mountable chassis containing a high-performance PC with a 4-channel PCI data-acquisition card. A full system can provide up to 40 channels with continuous streaming at 10 MHz or 39 channels standard triggering when combined with a THC unit.

The set of mini-systems is managed by ASC’s eXstream software utility which allows the use of the mini-systems independently or as a set of master-slaves both in streaming and triggering modes.

ASC’s InSite Seismic Processor provides offline visualisation of the continuous data stream in both time and frequency domains, and provides optimised multi-channel software triggering across all recorded channels for AE processing.

ASC’s OMNIBUS Pulser-amplifier System (PAS) can be used to provide signal amplification and conditioning, and provide ultrasonic velocity surveys over the entire transducer array for optimised ray path coverage.

The continuous acquisition technology of ASC’s Richter system has been designed for top-level laboratory experimentation in rock mechanics and related fields.

For more information on ASC's hardware range click here.

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