PICO
Product Overview
The PICO is a broadband feedback seismometer with a unique response: It has two simultaneous outputs, one proportional to the velocity of the ground motion, the other proportional to the ground motion acceleration. This approach has the advantage that over the entire passband both the rich information content of a typical acceleration response can be recorded without losing the sensitivity of a velocity proportional weak motion signal.
In addition one can remotely change the low frequency cut-off points (3 dB points) without having to physically remove the seismometer from the installation. We offer eight different responses with low frequency cut-off points between 120 sec and 1 sec.
To reduce the intrinsic noise we have redesigned the magnets in the feedback transducer to produce a truly rectilinear suspension of the inertial mass.
The instruments are delivered with a GaiaCode designed rotatable, waterproof connector. Its position can be adjusted over a wide range of angles up to 270 degrees. This flexibility allows for easy installation even in postholes or other tight locations.
PICO Hybrid Seismometer
Key Features
Instrument Design
- Triaxial topology with three symetrically orthogonal mounted sensors
- Fine pitched adjustable feet manufactured from phosphor bronze.
- Doubled nested feed back loop.
Instrument Characteristics
-Broad band flat frequency response from 120 sec to 270 Hz. Eight other options for low frequency cut-offs between 60 sec and 1 sec available
- Standard sensitivities is 2*750 V/m/s, differential output. Other sensitivities available
- Operational range within ± 25.0 degrees of tilt.
- Cross axis rejection >-68 dB.
- Independent simultaneous analogue output channels proportional to ground velocity and ground acceleration
Enclosure
- Rugged housing made from hard anodized aluminium. Optional TEEK-Titanium
- Weight 2.4 kg.
- Dimensions: outer diameter 101 mm, height 135 mm
- Waterproof as per IP68 standard.
- Waterproof rotatable connector
Power and Electronics
- Power consumption < 350 mW at 12 V.
- Operating temperature -20 to 75 °C
- Input power is protected against reversed polarity.
- The whole electronic circuitry is two stage galvanically isolated.
To obtain a detailed data sheet for this seismometer, please contact GaiaCode Headquarters
Disclaimer: The product specifications and the stated data are subject to change without prior notice.
