GeoVista - Caliper Probes

Geovista calipers can be used on their own or in combination with otter Geovista sondes. In addition to the traditional 3-arm caliper, a caliper v/itti two independent arms is available. This can be coupled v/rth a second 2-arm caliper sonde to provide a slim independent arm caliper.

Alternatively a single four-arm caliper with independent arms is available for larger boreholes, up to 1500 mm with arm extensions.

Independent caliper arms allow for the measurement of diameters (or radii), even when the sonde is not centred, thus avoiding the problem that is common to sondes with interf nked arms.

• Combinable, digital probes
• Independent arms (2 and 4 arm)
• Extendable range (4-arm

• Borehole diameter changes
• Borehole condition and integrity
• Fractures
• Borehole volume calculation
• Log environmental corrections