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Developed by Ref Tek in conjunction with the Institute of Geological and Nuclear Sciences of New Zealand has developed a penetrometer installed accelerometer probe, the Stephenson Accelerometer Probe. It is a cost effective solution for the investigation of side effects on earthquake ground shaking at relatively shallow soft-soil sites.
Seismic Applications:
Investigation of soft-soil sites at depths up to 50 metres
Building design
Features:
Easy to install - no drilling needed
3D site response
DC - 250 Hz bandwidth
0.7 damping typical
Cost effective alternative for the investigation of ground motion at depth of soft soil sites
Specifications
| Sensor Type | Piezoresistive Silicon Accelerometer, triaxial |
| Noise | <0.0001g |
| Frequency Response | DC-250 Hz |
| Output Impedance | 200 Ohm (nominal) |
| Full scale range | ±2g standard |
| Accuracy | ±0.1% of full scale |
| Operating Temperature | -20°C to 60°C |
| Housing | Stainless Steel, watertight, weight 8.6 kg |
| Communication | Ethernet, Serial, Modem |
| Power | 10 to 15VDC |
