Metrozet, LLC, a subsidiary of Kinemetrics, Inc., has announced the release of its portable broadband model 200S seismometer (PBB‐200S), a miniaturized 120 s class seismometer designed for temporary and permanent deployments that won a Good Design Industrial Design Award.
The PBB‐200S features a truly warpless baseplate, as well as magnetic shielding of the vertical component. Under a 1 Hz magnetic field aligned with the vertical axis, the power spectrum of a shielded versus a nonshielded vertical‐component signal exhibits an ∼14 dB attenuation of the 1 Hz noise peak, making it not measurable against the background noise. The internal shielding provided...
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