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PDF BB313 Data sheet ( Hoja de datos )
| Número de pieza | BB313 | |
| Descripción | ROBUST COMPACT ECONOMICAL BROADBAND SEISMOMETERS | |
| Fabricantes | PMD | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BB313 (archivo pdf) en la parte inferior de esta página. Total 2 Páginas | ||
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ROBUST COMPACT
ECONOMICAL
BROADBAND
SEISMOMETERS
BB313, BB313-OBS
The BB313 instruments are designed as
extremely robust, versatile, compact, light-
weight, broadband seismic sensors. Unlike
traditional seismometers, they are based on
proprietary electrochemical technology1 that
provides many advantages over the
conventional electromechanical sensors.
Each of the three identical sensor elements in
BB313 is equipped with an efficient
electrodynamic force-balancing feedback.
BB313 is a more compact, lighter version of
our BB303 seismometer, the difference being
in a slightly higher noise at longer periods.
The instruments are offered in two
application-dependent versions. The standard
BB313-(LN) is the reduced noise version. The BB313-SM has a higher clip
level and is used for strong motion applications. Both versions have the same dynamic range, which is shifted up
by approximately 10db in the ‘SM’ relatively to the standard ‘LN’ version. The BB313 instruments have been
recently redesigned. Also available are a single component version BB313U, a very low power customized
lightweight, compact ocean-bottom seismometer (OBS) BB313-OBS (photo on the right above), and a narrow
(83mm diameter) borehole model BB313-BH
The latest BB313 seismometer contains a microcontroller which maintains exceptionally accurate parameter
stability over the full operating temperature range and over the life of the instrument. Optionally, the microcontroller
can also generate internally calibrating sine or other waveform signals. The calibration can be initiated by applying
a logic level to the Calibration Enable input or via an optional serial port. If the latter is provided, the user can also
select and set the Generator Constant value in the 350-20,000 V/m/s range.
The BB313 has an exceptionally rugged design and does not require mass lock, mass centering across the full
operating temperature range, special installation equipment, or technical installation procedures. The units are
operational over a wide range of installation tilts. Optional inclinometers may be installed. The BB313 seismometers
provide a low cost of ownership, REQUIRING no maintenance over the life of the instrument.
Three and five-year extended warranties are available.
1 US patent No.6,576,103
Specifications subject to change without notice
105-F West Dudleytown Road, Bloomfield, CT 06002 USA
Tel: 1-860-242-8177 Fax: 1-860-242-7812
e- mail:[email protected] Web Site: www.pmdsci.com
01/06
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