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EXL-S3
Wireless Inertial Measurement Unit (IMU)
  • Module size: 54 mm x 33 mm x 14 mm
  • Module weight: 22 g.
  • 32-bit MCU, Cortex-M3 @72 MHz
  • 3-axis accelerometer with selectable full-scale range (±2 / ±4 / ±8 / ±16 g)
  • 3-axis gyroscope with selectable full-scale range (±250 / ±500 / ±1000 / ±2000 dps)
  • 3-axis magnetometer
  • Orientation estimation with Kalman filtering and quaternion output
  • Sampling rate up to 200 Hz for raw data and 100 Hz for orientation data
  • Various data packet format available
  • Bluetooth™ 2.1 class 1.
  • Indicator LED
  • Up to 7 nodes at the same time can stream data to the same host
  • 1GB Flash Memory (USB Mass Storage) for data storage
  • Docking station with micro-USB connector for battery recharging and log-file downloading
  • Minimum battery operating time 4 h
  • Firmware upgradable by means of bluetooth connection

General description

The EXL-s3 is a miniaturized electronic device with the function of real-time Inertial Measurement Unit (IMU). It features a complete MEMS sensor set, which is composed of a tri-axial accelerometer, gyroscope and compass, a 32-bit Cortex microprocessor for data processing and a Bluetooth radio to send real-time data. The unit can be used for real-time motion measurement and transmission in particular in the medical field as a wearable device for biomechanical analysis, such as posture assessment, rehabilitation, gait monitoring, joints' functionality analysis, activity monitoring, etc.
The Bluetooth™ radio allows easy interfacing to a wide range of devices (PC, Tablets, Smartphones) without the need of additional hardware so that data can be transmitted wirelessly up to 10 meters. Thes unit is also equipped with an embedded 1 GB flash drive which allows data logging to CSV files and USB interface for file transfer.
The on board 32-bit CPU provide algorithms for orientation estimation with Kalman filtering in order to give high quality measurement.
The integrated rechargeable Litium battery allows continuous data acquisition and streaming up to 3 hours and can be recharged by means of a dedicated docking station.

Applications

Wearable Devices, Biomechanics, Gait Analysis and Rehabilitation, Instrumentation, Attitude and Heading Reference System, Scientific Research and Motion Analysis, at home rehabilitation.

Hardware overview

On the front side of the IMU the ON/OFF button and an indicator LED are located.

The Docking-station allows the sensor to be interfaced to a PC via USB cable, for battery recharging and data-log file transfer.By connecting the docking-station to a PC it is possible to access the IMU's internal storage flash disk, in order to retrieve data-log files.

The Multiple Docking-Station allows more units to be recharged at the same time. It also acts as USB hub which allows more units to be seen as multiple distinct flash disks where log files can be found. The IMU is provided wit h a special holder which allows easy fixing to a Velcro-strap or similar.


Product brief User Guide

Contacts

Exel SrlVia di Corticella, 201
Bologna, Italy

Azienda

EXEL Srl si propone come punto di riferimento per lo sviluppo di hardware e firmware e una produzione di schede custom per piccole, medie e grandi quantità basata su tecnologie C.O.B. (Chip on board) e M.C.M. (Multichip module) e montaggio BGA e SMT.

Il nostro core business è indirizzato principalmente ai seguenti settori: automazione industriale, domotica, elettromedicale, automazione agricola, soluzioni Wireless, Bus solution, display grafici da 3.5” a 17”, display LCD custom, soluzioni a basso consumo e servizi di omologazione.

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