Variable Capacitance MEMS
Variable capacitance (VC) accelerometers are DC response sensors for measuring low frequency vibration, motion (constant acceleration) and tilt. With rugged construction and internal electronics, these sensors provide a high-level, low-pedance output which is stable over the wide operating temperature range. While designed for low-g measurement, they can withstand very high-g shocks. These accelerometers are suitable for trajectory monitoring, flutter testing, automotive ride quality and vehicle dynamics measurements.
| VARIABLE CAPACITANCE ACCELEROMETERS | |||||
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| Model Number | 3711F | 3713F | 3741F | 3743G | 7290G |
| Description | Single-ended variable capacitance accelerometer | Single-ended triaxial variable capacitance accelerometer | Differential variable capacitance accelerometer | Differential triaxial variable capacitance accelerometer | Differential or single-ended variable capacitance accelerometer |
| Linear Range (g) | ±2 / ±10 / ±30 / ±50 / ±100 / ±200 | ±2 / ±5 / ±10 / ±30 / ±50 / ±100 / ±200 | ±2 / ±5 / ±10 / ±30 ±50 / ±100 / ±200 |
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| Sensitivity (mV/g typical) | 675 / 135 / 45 / 27 / 13.5 / 6.75 | 1350 / 540 / 270 / 90 / 54 / 27 / 13.5 | 1000 / 400 / 200 / 66 40 / 20 / 10 |
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| Frequency Response (±5%, Hz) | 0-250 / 0-1000 / 0-1500 / 0-1500 / 0-1500 | 0-15 / 0-30 / 0-500 / 0-1000 / 0-2000 / 0-2000 / 0-2000 |
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| Shock Limit (g) | 5,000 | 5,000 (2, 5, 10g) 10,000 (30, 50, 100 & 200) |
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| Typical Applications | Aircraft flight testing of flutter/buffeting and landing gear; simulated environmental testing with shakers and centrifuges; automotive testing of suspension, shock absorption, and damping; vehicle driveability, ride quality and handling; brake and steering development; and road load data acquisition (RLDA). | ||||
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