Axo®315T0 / 315T1
High-Temperature MEMS Accelerometers for Energy
High-temperature MEMS accelerometers
for directional drilling in Oil & Gas applications
Key Performances
| Input range | ± 14 g |
|---|---|
| Operating temperature range |
-30 °C to +150 °C (AXO315T0) -30 °C to +175 °C (AXO315T1) |
| Bias instability |
5 μg @ 150 °C (AXO315T0) 10 μg @ 175 °C (AXO315T1) |
|
Residual bias temperature error (with 5th order external compensation) |
0.8 mg (AXO315T0) 1.7 mg (AXO315T1) |
| Noise density |
18 μg/√Hz @ 150 °C (AXO315T0)
20 μg/√Hz @ 175 °C (AXO315T1) |
| Powered lifetime |
> 1000 h @ 150 °C (AXO315T0)
> 1000 h @ 175°C (AXO315T1) |
| 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 |
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 +175°C
AXO315T0 and AXO315T1 are single-axis, high temperature, closed-loop MEMS accelerometers 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 +175°C.
Their superior vibration rejection enabled by an innovative closed-loop architecture makes AXO315T0 and AXO315T1 the perfect candidates for integration into directional modules used for drilling tools guidance under harsh vibrations and shocks.
With a lifetime of 1000 hours at high temperature, accelerometers from the AXO315T series are reliable MEMS sensors that maximize the productivity of oil and gas drilling operations while ensuring precise downhole navigation thanks to their high stability under extreme temperature and vibrations conditions.
