SEISMIC ACCESSORIES

Accessory

The 3D Land Geophone 3DLG-2 is the ideal accessory to add to your seismic instrumentation and perform HVSR, MASW and Vibration Analysis. One vertical and two horizontal high-performing sensors, with 2Hz resonance frequency and properly coupled, are mounted in a robust waterproof case, delivered with adjustable feet and inter-changeable rods.

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Accessory

Borehole 3D Geophone Mod. GFA 50/100 is built with 3 high-sensitivity geophones (nat.freq.10 Hz- 1 vertical and 2 horizontal sensors) oriented according to a triad of orthogonal Cartesian axes XYZ. Supplied with a cleat assembly to sustain its weight at the requested depth (GFA cable is graduated in meters), this borehole geophone has a pneumatic-mechanical clamping system with lateral lever and spacer block. Available in two versions: GFA-50 with 50m of cable and GFA-100 with 100m of cable.

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Accessory for GFA

Spacer accessory to connect two GFA units - vertical distance between sensors = 1m

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Accessory

Specially designed for small-scale crosshole surveys (ASTM 4428), this compact hammer can be used to generate both P and S waves. The hammer can be loaded down using the steel cable and clamped to the requested depth by a pneumatic clamping system manually controlled by a lever from the surface.

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Accessory

Versatile, user friendly instrument, designed to "trigger" the acquisition of the seismograph via radio, transmitting in the free European band 869.4 - 869.65 MHz (free use license - exempt from government taxes).

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Accessory

In standard shell, 75mm steel rod, 1m cable terminated with split spring connector (single clip). For use on asphalt and rigid surfaces, we recommend using it with a special universal base (to be ordered separately).

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Accessory

In horizontal shell with bubble level, 75mm steel rod, 1m cable terminated with split spring connector (single clip). For use on asphalt and rigid surfaces, we recommend using it with a special universal base (to be ordered separately).

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Accessory

In standard shell, 75mm steel rod, 1m cable terminated with split spring connector (single clip). For use on asphalt and rigid surfaces, we recommend using it with a special universal base (to be ordered separately).

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Accessory

In horizontal shell with bubble level, 75mm steel rod, 1m cable terminated with split spring connector (single clip). For use on asphalt and rigid surfaces, we recommend using it with a special universal base (to be ordered separately).

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Accessory

In standard shell, 75mm steel rod, 1m cable terminated with split spring connector (single clip). For use on asphalt and rigid surfaces, we recommend using it with a special universal base (to be ordered separately).

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Accessory

In standard shell, 75mm steel rod, 1m cable terminated with split spring connector (single clip) (to order). For use on asphalt and rigid surfaces, we recommend using it with a special universal base (to be ordered separately).

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Accessory

2Hz and 4.5Hz - sensor triad in standard 3C shell with bubble level and 3 steel 75mm rods, 1m of cable terminated with 3x single “split spring” for seismic cable (version available upon request with Cannon connector for direct connection to the seismograph).

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Accessory

Seismic cable for refraction/surface reflection, 16 twisted pairs, with 12 single takeouts, 5m spacing, terminated at each end with 5m tail and Cannon NK2721C type connector. Total length 65m. Supplied with cable reel.

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Accessory

Seismic cable for refraction/surface reflection, 16 twisted pairs, with 12 single takeouts, 10m spacing, terminated at each end with 10m tail and Cannon NK2721C type connector. Total length 130m. Supplied with cable reel.

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Accessory

Extension for 12-channel seismic cable for refraction/surface reflection, 16 twisted pairs, terminated at each end with Cannon NK2721C type connector. Supplied with cable reel. Standard lengths available 65m and 130m.

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Accessory

Seismic cable for MASW, refraction, /shallow reflection, 28 twisted pairs, with 24 single takeouts, complete of Y-shaped splitter adapter with 2 Cannon NK2721C type connectors. The two standard models include: 5m spacing, terminated at each end with 5m tail, total length 125m. 10m spacing, terminated at each end with 10m tail, total length 250m. We offer a total possibility of customization; since they are bulky materials, 24-channel cables are not supplied on cable reel.

Methodologies
Accessory

Ideal solution for the rapid creation of long seismic lines on asphalt and dirt roads, or on unobstructed and vegetation-free land. Especially practical in all those situations where it is possible and advantageous to use transport means to "drag" the 12/24 channel spacing with the geophones already connected to the cable and mounted on special anti-tipping supports. Available on request with customized lengths and spacings.

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Accessory

Hydrophone cables provide for the use of hydrophones (waterproof pressure sensors, natural freq. 10Hz) instead of traditional geophones, thus allowing the implementation of expedited seismic surveys in lakes, rivers, wells (downhole & crosshole), etc. Since transverse waves are not transmitted in liquids, it will obviously be possible to detect only P waves (compression waves): for surveys in P&S wave wells, we recommend the 3D hole geophone Mod. GFA. Hydrophone cables are available with fully customized length, number of hydrophones and spacing.

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Accessory

Starter geophone with connecting cable. The ideal solution for having a perfect trigger and acquisition. Standard cable length is 1m (longer lengths available upon request).

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Accessory

Piezoelectric starter (hammer switch), with cable. Supplied with spare piezoelectrics.

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Accessory

Shielded cable on reel, length 130m, for starter geophone / hammer switch.

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Accessory

6kg sledge hammer. Can be used either with a hammer switch (to be fixed to the handle of the hammer as in the photo) or in combination with the starter geophone.

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Accessory

Aluminium striking plate with carrying handle, dim. 20x20x5 cm. Also available in polyzene version (upon request).

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Accessory

Iron frame for horizontal wave striking plate (striking plate not included).

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Accessory

When energizing with the sledge hammer is no longer sufficient data - to reach the desired exploration depth and explosives cannot be used, this seismic energizer can be the winning solution (for example when you need to acquire seismic reflection data). The Isotta seismic energizer is made up of a stainless steel cylindrical body, with a front section that may be unscrewed (cartridge chamber), suitable to contain an 8-bore blank cartridge, or industrial type, easily found in gun shops. This cartridge chamber is without barrel, thus permitting the axial ejection of the energy wave, caused by the explosion of the cartridge, generating type 'p' (longitudinal) and type 's' (transversal) waves.

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Accessory

USB GPS antenna; it can be used for geopositioning of an instrument connected to PC (es. GEA24, GEA3, RM-1, POLARES32, Gemini-2) or for synchronization of acquisitions among more instruments (es. 2 or more Gemini-2s).

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Accessory

This accessory allows the trigger synchronization between two separate acquisition units; it's compatible with Gemini-2, GEA3, GEA24.

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Accessory for Gemini2

Gemini-2 option for "active" seismic (requires related accessories).

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Accessory for geophones

Universal base in stainless steel; it allows the use of standard geophones on asphalt and other rigid surfaces without unscrewing the rod.

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Accessory

Padded shoulder bag for a set of standard geophones or other seismic accessories

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