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Triaxial variable capacitance accelerometer Model 7298

Triaxial variable capacitance accelerometer Model 7298
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Triaxial variable capacitance accelerometer Model 7298 - 1

Triaxial variable capacitance accelerometer '.'ARKED COORDINATE SYSTEM '.Via G VE POSITIVE OUTPUTS FOR EACH CORRESPONDING AXIS • Hermetic package with water resistant connector full scale ranges • Motion, low frequency, tilt • Full analog signal path • Precision digital temperature INCHES [MILLIMETERS' The Endevco® Model 7298 Triaxial Accelerometer family is designed to provide the high thermal stability and global accuracy that is typically required for the measurement of relatively low-level accelerations in aerospace and automobile environments. Typical applications require the measurement of whole body motion in three mutually orthogonal directions immediately following shock motion or in the presence of severe vibrational inputs. State of the art temperature compensation electroincs provide for precise compensation over a wide temperature range, while maintaining a full analog signal path Each axis of the triaxial accelerometer utilizes a patented variable capacitance MEMS sensing element Gas damping and internal overrange stops enable the MEMS sensing element to withstand high shock and acceleration loads. The triaxial sensor arrangement is housed in a truly hermetic bolt-mount package featuring an integral Glenair® Mighty Mouse 800-013 series hermetic receptacle. When used with a mating plug (Glenair® series 800-006 thru 800-009] the connector assembly is protected against water ingress, making the 7298 an ideal choice for permanent installations in hose-down locations. nternal signal conditioning allows the 7298 to operate from an excitation voltage from 6Vdc to 45Vdc while providing a high level, low impedance output. For each axis, the single-ended output is DC coupled and varies linearly from 0.5Vdc to 4.5Vdc over the input range. For operating in differential mode, a precision 2.5Vdc reference voltage is available at the connector, providing a DC coupled ±2Vdc differential output. The signal conditioning ncludes factory programmable temperature compensation in order to maintain stringent thermal characteristics and high accuracy. Frequency response is controlled by the use of near-critically damped sensors. As opposed to oil damping, the use of gas damping in the sensing elements results in very small thermally induced changes in frequency response extreme environments

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Triaxial variable capacitance accelerometer Model 7298 - 2

Aerospace Energy Test and measurement Triaxial variable capacitance accelerometer Model 7298 Specifications All values assume +75°F (+24°C) and 15 Vdc excitation and apply to each of the three axes, unless otherwise stated. Calibration data traceable to National Institute of Standards and Technology (NIST) is supplied. Physical characteristics Case material Connector Mounting/torque Weight Environmental characteristics Acceleration limits (in any direction) Static Vibration Shock Zero shift Temperature Operating Storage Humidity/altitude ESD sensitivity Calibration Sensitivity Frequency...

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Triaxial variable capacitance accelerometer Model 7298 - 3

Triaxial variable capacitance accelerometer Accessories Contact EHW265 Size 4, flat washer (2) Included EH69 4-40 x 3/4 inch cap screws [2] Included 3907-36 Mating cable assembly, 36" Optional 3907-120 Mating cable assembly, 120" Optional 1. Full scale output (FS0) is nominally 4- volts. 2. Threshold = (max. residual noise; 0.5 to 100 Hz) / sensitivity. Model number definition Meggitt (Orange County] Inc. Basic model number , , , Continued product improvement necessitates that Meggitt reserve the right to modify these specifications without notice. Meggitt maintains a prog ram of constant...

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