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ST3

ST3

Product catalog summary

Overview
The ST3 is a 3D surface seismic instrument designed for field use, integrating a 3-channel acquisition board with 24-bit resolution and a 3D sensor with 2 Hz geophones. It connects to a laptop or tablet via USB for easy operation.

Specifications

Resolution: 24-bit
Channels: 3
Geophone Frequency: 2 Hz
Dimensions: Ø14x10 cm
Weight: 2 kg
Case: IP67 rated
Environmental Conditions: -20°C to 80°C
Power Supply: External source

Construction
The sensor is housed in a 10 mm thick aluminum casing with anodization for durability and easy cleaning. It includes ground insertion spikes and a bubble level for stable placement.

Methodologies
The instrument supports the Nakamura Method, HVSR, and H/V methodologies for seismic data acquisition.

Acquisition Features

Dynamic Range: 144 dB (dynamic), 109 dB (at 1ms sampling)
Broadband: -3dB at 3500 Hz
Frequency Options: 251Hz, 502Hz, 1008Hz
Gain: 0 to 42dB
Anti-aliasing: -3dB, 80% Nyquist's frequency, -80dB
Common Mode Rejection: 110 dB at 50Hz
Input Signal: ±2.5V

Export and Testing
Data can be exported in .seg2 and .csv formats. The instrument includes in-line noise analysis testing capabilities.

Manufacturer
MAE s.r.l advanced geophysics instruments, Zona Ind. Fresilia - 86095 Frosolone (IS).

Catalog excerpts

3 channel 24 bit seismograph with integrated 3D sensor 2 Hz frequency ST3 is a 3D surface seismic instrument that integrates an acquisition board with 3 channels, each featuring 24-bit resolution, and a three-dimensional sensor equipped with geophones with a natural frequency of 2 Hz. The instrument is operated via a laptop or tablet PC connected through a USB interface, allowing for simple and efficient use even in field environments. The sensor is built to the highest quality standards, with a 10 mm thick aluminum housing that ensures stable positioning of the internal components. The external anodization provides a durable finish that facilitates cleaning after field use. Leveling is achieved through ground insertion spikes (supplied), and can be checked using the integrated bubble level, ensuring correct and stable placement on the ground. To facilitate transport and ensure maximum protection during handling, the instrument features a removable carrying handle and a protective cap that limits the movement of internal masses. Methodologies Nakamura Method, HVSR, H/V Geophone number Export compatibility In-line test Noise analysis MAE s.r.l advanced geophysics instruments Zona Ind. Fresilia - 86095 Frosolone (IS)

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Power supply External source Dynamic range Broadband Frequency Gain Anti aliasing Common mode rejection Input signal MAE s.r.l advanced geophysics instruments Zona Ind. Fresilia - 86095 Frosolone (IS)

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