Meggitt Sensing Systems Introduces TEDS Capabilities into Endevco Model 7290D Variable Capacitance Accelerometer Series

By DE Editors

Meggitt Sensing Systems has introduced transducer electronic data sheet (TEDS) capabilities into its Endevco model 7290D series, allowing it to be used within larger channel count applications. The model 7290D series is a high-accuracy, variable capacitance (VC) accelerometer family.

Offered in five different models with available measurement ranges from 2 g to 100 g, the Endevco model 7290D series incorporates a VC sensing element with gas damping and internal over-range stops, allowing the sensor to survive significant shock and acceleration loads of up to 10,000 g, with 2.5% total dynamic accuracy. Units feature good non-linearity, including hysteresis, of typically 0.2% for ranges of 2 g to 50 g, according to the company.

Integral to each accelerometer is a custom signal conditioner, enabling the device to accept input voltages from 8V to 30V with a high level, low impedance output. The ±2.25 V differential output (single-ended output optional) is DC coupled at a bias of approximately 2.5V. A custom ASIC provides factory programmable temperature compensation, achieved via five-point linear fit algorithm, for both thermal sensitivity and thermal zero shifts. Units are integrally temperature compensated from -55° to +125°C, to ensure temperature accuracy over the full military range. TEDS capabilities (conforming to IEEE 1451.4) allow for onboard storage of serial number and calibration data, for simplified test setups with reduced errors.

For more information, visit Meggitt Sensing Systems.

Sources: Press materials received from the company and additional information gleaned from the company's website.