Introducing the Model 1522: A Durable MEMS DC Accelerometer for Challenging Environments
The Model 1522 is a robust,cost-effective MEMS DC accelerometer specifically engineered for industrial applications in drones and robotics. It excels in environments that experience significant temperature variations or extreme conditions over extended periods.This accelerometer is available in multiple g-range configurations and features a MEMS capacitive sensing element paired with a custom ASIC that includes an integrated sensing amplifier and a differential output stage.
Precision Engineering for Enhanced Performance
Each Model 1522 accelerometer is nitrogen-damped and hermetically sealed, ensuring reliability in demanding conditions. To guarantee optimal performance in temperature-sensitive applications, each unit undergoes rigorous individual testing, programming, calibration, and verification within a controlled climate chamber. Accompanying each device is a calibration test report that details the actual measured bias, scale factor, linearity, operating current, and frequency response metrics.
Output and Design Features
the Model 1522 generates a differential output voltage of ±4 volts. The seismic center is strategically positioned along the centerline between the dual sensing elements,effectively canceling out any rotational errors around this point through advanced internal electronics.
Technical Specifications
| Dimensions | 0.35 x 0.35 x 0.105” (LCC) |
| Weight | 0.62g |
| Power Supply | 5VDC, 5mA |
| Available G-Range Options | ±2, 5, 10, 25, 50, 100, 200, 400g |
| Bias Calibration Error (%) | 0.2 typical, 0.5 maximum |
| Bias Calibration Error (mV) | 16 typical, 40 maximum |
| bias Temperature Shift | -50 to +50 PPM/°C |
| Scale Factor Calibration Error (%) | 0.5 typical,1 maximum |
| scale Factor Temperature Shift | -100 to +50 PPM/°C |
| Long-term Bias Stability | ±1000 ppm typical,±2000 ppm maximum |
| Long-term Scale Factor Stability | ±500 ppm typical,±1000 ppm maximum |
| Analog Output | ±4 VDC Differential |
