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Guralp CMG-40T-1 Short Period Sensor

The CMG 40T-1sec seismometer looks, on the outside, just like the CMG 40T-30sec, intermediate period seismometer. Its response, however, is tuned to short-period signals (1-100Hz). One hundred of these feedback seismometers were purchased for the Flexible Array sensor pool.

Salient Features:

  • Flat response to velocity from 1 Hz to 100 Hz
  • Low power
  • Easy to use - No Mass lock/unlock; Masses are free to move at all times

Installation Tips:

  • One-pager field sheet
  • Orientation points same as other Guralp seismometers: brass pin should point north, silver-colored pin should point south
  • Foot locking also the same as other Guralp seismometers

Manufacturer Documents:

  • Guralp's Manual (HTML) is written more with the intermediate-period 40T in mind, but is generic enough to be somewhat useful.

Response Characteristics:

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