CMG-DCM
A useful feature of Gü ralp Systems digitizers is the ability to output streams at several data rates. Each stage of filtering is known as a tap, producing data at a particular rate. At each tap, incoming data is filtered and its data rate reduced by a
The initial digitizing process outputs data at a rate of 2000 Hz, which is decimated at Tap 0 by a fixed factor of 10. You can control which data streams the digitizer outputs at this point using the top row of the first grid of Z, N, and E checkboxes on this page. Subsequent grids of checkboxes determine which of the other taps output data. For example, you could output the Z component at 200 Hz, together with all three components at a lower rate.
You can also set trigger criteria for the digitizer. The criteria can be applied to any component at any tap, and as soon as they are satisfied, any component with a checked box in the lower (triggered) row of one of the grids will begin outputting data in addition to the normal streams. You cannot have the same component produce both triggered and continuous output at the same tap.
See “Digitizer output control” in Section 5.2 for full details of what you can do.
Using Scream!
If you prefer, you can use Gür alp Systems' Scream! software to configure and calibrate digitizers and sensors through the DCM module, just as if they were connected directly. For full details on how to use Scream!, please refer to its own documentation or the extensive
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