Uniaxial Broadband Sensor

The EP-105-U is an uniaxial that is designed as a versatile, very compact, lightweight, and very rugged broadband seismic sensor. Unlike traditional seismometers, they are based on proprietary electrochemical transducer technology that provides many advantages over the conventional electromechanical (mass) seismometers. In particular unlike other sensors, the EP-105-U noise curve is essential flat starting from about 5Hz toward the longest periods. Each sensor element in EP-105-U is equipped with an efficient electrodynamic force-balancing feedback.

The instrument is offered in two application-dependent versions. The standard EP105-(LN) is the reduced noise version. An optional model, EP105-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 EP105-U has an exceptionally rugged design and easily deployed in the field. It DOES NOT require mass lock for transportation, mass centering, special installation equipment, or technical installation procedures. The units are operational over a wide range of installation tilts. An optional inclinometer may be installed. The EP105-U seismometer provides low cost of ownership, REQUIRING no maintenance over the life of the instrument. Three and five-year extended warranties are available.