RT125 (Texan)

 

 

           

       The impetus to provide a new data format for archiving stems from the inherent limitations with respect to the use of SEG-Y as a data archiving format, limitations such as: requiring vetted meta-data prior to converting the data into SEG-Y files, un-editable meta-data within the file, and inflexible, static data gathers.

ETS, or 'episodic tremor and slip', is a recently discovered phenomenon in seismic research. Similar to earthquakes but much smaller in magnitude, ETS events are associated with the subduction zone of some convergent plate boundaries. One such region, the Cascadia subduction zone under the Puget Sound, is the focus of an experiment by Ken Creager's group at the University of Washington (UW), called Array of Arrays.

PH5, clearly a better choice as an archival data format.

 

The Mini-Hub is functionaly identical to the normal, full-sized, hub except it can only program 3 texans at a time (instead of the normal 15). It was designed in-house to act as a light weight and more portable version of the full-sized hub for when field conditions require the texans to be backpacked into a remote site.

Programming texans is identical when using either the normal hub or the mini-hub. See the Texan Programming with Pocus page for more details.

The RT125A, or texan, is a compact single channel datalogger with a self contained power supply (two D-cell batteries). Its primary application is for active source experiments.

When recording continuously at 100 sps, the battery life is approximately 120 hours. Higher sample rates will shorten the battery life and may fill up internal memory before the battery dies.

Features:

Single channel, 24 bit ADC Physical size: 3.0" diameter, 7.7" length Power source: two D-cell alkaline batteries Sample rate: 25 to 1000 sps Storage capacity: 256MB or 512MB

 

  Please note: Programming texans should be performed by an experienced user or a PASSCAL staff member.

 

QUICK START GUIDE

 1. CONNECT EVERYTHING. Connect power to the PC Interface box, the GPS Distribution box, and the hub. Connect a RT130GPS to the GPS Distribution box. Connect a cat-5 cable from the GPS Distribution box to the PC Interface box. Connect USB and serial cables from the PC Interface box to the hub. Install drivers for the USB to serial converters in the PC Interface if required. Connect a USB cable from the PC Interface to a USB port on the control computer. Complete any driver installation. Connect the Texans to the hub.

2. START AND SET UP POCUS.