AMD MEMS seismic accelerometer
AMD MEMS strong motion seismic accelerometer suitable for any environmental condition and designed for vibration measurement of bridges and viaducts.
AMD MEMS
Solgeo has developed this triaxial mems accelerometer with performances suitable for monitoring structures such as bridges, viaducts, tunnels in road and rail environment, both for direct measurement of accelerations and displacements but also suitable for modal analysis of structures.
. It is characterised by high response accuracy, good dynamics especially at low frequencies (those of interest), high robustness to atmospheric agents and shocks, all at a very competitive price for widespread installation. It connects directly to the Dymas24 series acquirers that manage the internal test.
Applications
- Vibration measurements on bridges and viaducts
- Suitable for all environmental conditions
Bridges and Infrastructure
Technical characteristics
Electronic characteristics
| Number of channels | 3, orthogonally oriented |
| Full scale acceleration (Input Range) | ± 2 g; ± 4 g ± 8 g (optional) |
| Output Voltage | ± 4 Volt differential |
| Sensitivity | 2000 mV/g – 1000 mV/g (±4g type); 500 mV/g (±8g type) |
| Frequency response | 0 – 500 Hz (nominal, -3dB); 0 – 1500 Hz (optional) |
| Operating voltage | +5 to +18 Vdc 8 mA |
| Output Impedance | 90 Ohms |
| Dynamic range | > 90 dB |
| Noise density | < 22,5 µg/√Hz |
| Non-linearity | <0.1% (2g model) |
| Cross axis sensitivity | 1% |
| Offset drift | 0,1mg/°C |
| Full scale drift | 100 ppm/C° |
| Sensor test | External test input |
| Phase error | <10° (from 0 to 50Hz) |
Environmental characteristics
| Operating temperature | -20 °C to +80 °C |
| Temperature, Storage | -40 °C to +90 °C |
| Humidity | 100% |
| Shock Survival | 2000 G, 0.1 mSec |
| Ambient Pressure | 0 to 5 Bar |
Physical characteristics
| Weight | 600g |
| Dimension (LxWxH) | 50 x 50 x 50 mm (without connectors) |
| Case Material | Anodized Aluminum |
| Protection rating | IP65 with connector or IP68 with cable gland |
| Electrical Interface | 10 terminal pins CONNECTOR / cable gland |
Gallery