CMG-40TOBS

CMG-40TOBS.

The OBS-CMG40T triaxial ocean bottom instrument is the smallest ocean bottom sensor available from Güralp Systems, with a CMG-40T sensor housed in a 16 cm diameter spherical casing. Such a small size yields excellent coupling to ground and minimises noise. Within the sensor package, a combination of auto-levelling electronics and a gimbal of ±120 ° range ensures you can deploy in confidence over any sea floor surface.

A typical 40TOBS installation package.

Features

Very low power consumption (< 8.8 mA per rail from ±5 V input power)
Automatic tilt compensation with ±120 ° gimbal
Stable levelling platform
Integrated wide dynamic range digitizer
High stability clock
Long duration, low power recording medium
Noise performance indistinguishable from the surface CMG-40T sensor
Linearity > 100 dB
Dynamic range > 150 dB
Automatic deployment sequence including full levelling and centring

Results

An event recorded by the CMG-40TOBS.

The image, right, shows a typical local event recorded by a CMG-40TOBS sensor immediately after deployment.

The sensor is compatible with Güralp Systems' DM24 digitizer, which can be supplied in a package suitable for ocean deployment. The DM24 can store recorded data on a local hard disc, or transmit it over a cable link to the surface.

CMG-40TOBS

Features

Results

Featured articles

Case study: The Monterey Bay ocean bottom observatory

Ocean bottom sensors reach the mainstream

New OBS systems delivered



Home Products CMG-3T CMG-3TD CMG-3ESP Compact CMG-3ESPD Compact CMG-5T CMG-5TD CMG-5T Compact CMG-40T CMG-6TD CMG-CD24 CMG-DM16 CMG-DM24 CMG-DCM CMG EDU All products Software New installations Customer support About us	CMG-40TOBS CMG-40TOBS. The OBS-CMG40T triaxial ocean bottom instrument is the smallest ocean bottom sensor available from Güralp Systems, with a CMG-40T sensor housed in a 16 cm diameter spherical casing. Such a small size yields excellent coupling to ground and minimises noise. Within the sensor package, a combination of auto-levelling electronics and a gimbal of ±120 ° range ensures you can deploy in confidence over any sea floor surface. A typical 40TOBS installation package. Features Very low power consumption (< 8.8 mA per rail from ±5 V input power) Automatic tilt compensation with ±120 ° gimbal Stable levelling platform Integrated wide dynamic range digitizer High stability clock Long duration, low power recording medium Noise performance indistinguishable from the surface CMG-40T sensor Linearity > 100 dB Dynamic range > 150 dB Automatic deployment sequence including full levelling and centring Results An event recorded by the CMG-40TOBS. The image, right, shows a typical local event recorded by a CMG-40TOBS sensor immediately after deployment. The sensor is compatible with Güralp Systems' DM24 digitizer, which can be supplied in a package suitable for ocean deployment. The DM24 can store recorded data on a local hard disc, or transmit it over a cable link to the surface. Featured articles Case study: The Monterey Bay ocean bottom observatory October 2004 Ocean bottom sensors reach the mainstream June 2006 Güralp Systems' OBS packages have gone into full production, with the CMG-40TOBS proving popular with scientists. New OBS systems delivered February 2005 As part of our ongoing collaboration, Güralp Systems has shipped 15 CMG-40TOBS compact ocean bottom broadband seismometers to the Géosciences Azur Laboratory. More articles on this topic...