Axo®315T0
High-Temperature MEMS Accelerometer for Energy
High-temperature MEMS accelerometer
for directional drilling in Oil & Gas applications
Key Performances
| Input range | ± 14 g |
|---|---|
| Operating temperature range | -30 °C to +150 °C |
| Bias instability |
3 μg @ RT 5 μg @ 150 °C |
|
Residual bias temperature error (over full temperature range) |
0.8 mg |
|
Residual bias temperature error after powered life test (1000h at 165°C) |
1.5 mg |
| Noise density |
10 μg/√Hz @ RT 18 μg/√Hz @ 150 °C |
| Powered lifetime | > 1000 h @ 150 °C |
| Vibration (survival) |
Random 20 g rms, 50 to 2000 Hz Sine 50 g peak, 50 to 800 Hz |
| Vibration rectification error | 20 μg/g² |
| Bias in-run stability | 15 μg @ RT |
|---|---|
| Long term bias stability | 0.4 mg |
| Scale factor non linearity | 80 ppm |
| Bandwidth | 150 Hz |
| Data Rate | 2500 Hz |
| Latency | 2 ms |
| Power supply | 5 V |
| Size (L x l x h) | 12 x 12 x 5.5 mm |
| Status | Production |
Key Features
- 24-bit digital SPI interface
- Initial and continuous self-test
- Hermetic ceramic SMD package
- Non classified under dual-use export control
- REACH and RoHS compliant
Applications and Key Product Benefits
High stability, reliability, and vibration rejection for inclination measurement in downhole navigation up to +150°C
AXO315T is a single-axis, high temperature, closed-loop MEMS accelerometer with ±14 g input range that offers a digital, cost-effective, and low-SWaP alternative to quartz accelerometers for precise inclination measurement in directional drilling applications exposed to high temperatures up to +150°C.
Its superior vibration rejection enabled by an innovative closed-loop architecture makes AXO315T a perfect candidate for integration into directional modules used for drilling tools guidance under harsh vibrations and shocks.
With a lifespan of 1000 hours at 150°C, AXO315T is a reliable MEMS acceleration sensor that maximizes the productivity of oil and gas drilling operations while ensuring precise downhole navigation thanks to its high stability under extreme temperature and vibrations conditions.
