SDI's 1527 is a small, tactical-grade surface mount MEMS DC accelerometer ideal for unmanned systems applications requiring high repeatability, low noise, and long-term stability under a wide range of operating temperatures. Each miniature hermetically-sealed sensor incorporates a MEMS capacitive sense element and a custom IC with integrated sense amplifier and differential output stage.
The 1527 is available in a number of different g-range options. Each miniature, hermetically sealed package combines a MEMS capacitive sense element and a custom integrated circuit that includes a sense amplifier and differential output stage. It is relatively insensitive to temperature changes and gradients. Each device is individually tested, programmed, calibrated by SDI, as well as marked with a serial number on its top and bottom surfaces for traceability. A calibration test report is provided with every unit showing the measured bias, scale factor, linearity, operating current, & frequency response.
Specifications:
| ± 10g | ± 25g | ± 50g | |
| Dimensions | 0.35 x 0.35 x 0.165” | 0.35 x 0.35 x 0.165” | 0.35 x 0.35 x 0.165” |
| Weight | 0.68g | 0.68g | 0.68g |
| Power | +5 VDC, 6.5 mA | +5 VDC, 6.5 mA | +5 VDC, 6.5 mA |
| VRW | 0.07 m/s/√hr | 0.012 m/s/√hr | 0.025 m/s/√hr |
| Bias (Longterm Repeatability) | 1.25 mg | 1.5 mg | 3.0 mg |
| In-run Bias Stability | 12 µg | 30 µg | 60 µg |
| Scale Factor, Long Term Repeatability | 300 ppm | 300 ppm | 300 ppm |
| Analog Output | ±4 VDC Differential | ±4 VDC Differential | ±4 VDC Differential |
