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This product has been retired from our catalog and is no longer for sale.

This page is made available for those looking for datasheets and the simply curious. Please refer to the description to see if a replacement part is available.

Description: The Barnacle is an IMU designed to give highly sensitive low frequency readings in potentially harsh and RF noisy environments. It comes enclosed in an metal shielded enclosure to reduce EMF interference and has a very wide input voltage range for maximum flexibility. The connector is a water tight, lock-fit 8 pin Conxall connector.

The Barnacle uses a Freescale MMA7260Q triple-axis accelerometer and three Analog Devices ADXRS401 75˚/second gyros for measurements. Each channel is buffered and filtered with Sallen-Key second order low pass filters.

Electrical Specifications:

  • Input Voltage: 7.5V to 32V DC
  • Current Draw: 9mA@24V input, 15mA@12V input
  • Acceleration Sensitivity: 586mV/g (min 542mV/g, max 630mV/g)
  • Gyro Sensitivity: 15mV/˚/second
  • Zero-Rate Output: 2.5V nominal (0 and 5V rails)
  • Frequency Response: 20Hz


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