Description
Product SKU: TSS-EM3
One module. Two jobs. No infrastructure.
Most inertial designs force a choice: a precision accelerometer that clips during hard impacts, or a high-range accelerometer too noisy for accurate orientation. The 3-Space™ Embedded v3.1 eliminates that tradeoff. Its auto-selecting dual accelerometers span ±2g to ±320g in a single 1.3 gram surface-mount module, so the same part that tracks fine orientation also captures impacts, drops, launches, and shocks. No second sensor, no extra board space, no arbitration firmware to write.
The Embedded v3.1 is a production-capable, 10-DOF Attitude and Heading Reference System (AHRS) / Inertial Measurement Unit (IMU) built on a triaxial gyroscope, auto-selecting dual accelerometers, magnetometer, and barometric pressure sensor. Patented onboard processing and quaternion-based filtering deliver fused orientation at rates up to 2000Hz, fast enough for closed-loop stabilization, robotics control, and real-time immersive applications.
Motion paths without GPS
The embedded EEPTS pedestrian tracking system extracts real-time motion paths from body-worn devices or hand-carried equipment with no GPS and no external infrastructure. Wherever satellite signals can’t reach (inside structures, underground, in dense environments) EEPTS runs entirely onboard the sensor and outputs motion-path offsets directly. Capability that normally requires a dedicated navigation software effort on your host system is built into the part.
Precision you can configure
Choose between Extended Kalman Filtering and our proprietary QGRAD3™ filter, which delivers fused orientation with lower latency and lower computational overhead. A dynamic sensor confidence algorithm maintains accuracy across changing operating conditions, and the gradient descent calibration process compensates for sensor error at high update rates. Orientation is available in absolute or relative terms, in every format your application expects: quaternion, Euler angles, rotation matrix, axis angle, and two-vector.
An integrated World Magnetic Model (WMM) turns magnetometer readings into headings you can actually navigate by: simple commands return heading and bearing referenced to true north, magnetic north, or grid north, with declination handled onboard instead of in your application code.
Built for your board, documented for your team
Castellated SMT edge pads support secure surface mounting with optional through-hole mounting. Communication options include SPI, I2C, USB 2.0, and asynchronous serial, with USB appearing as a virtual COM port. Every sensor function is accessible through our well-documented open protocol, in human-readable ASCII or fast machine-readable binary, with Python and C APIs and the free 3-Space™ Sensor Suite application for rapid evaluation. Firmware updates are free for the life of the product.
Designed and built in Portsmouth, Ohio, USA, with direct access to the engineers who created it.
Applications
Where the Embedded v3.1 works
- Robotics, positioning, and stabilization
- Unmanned air, land, and water vehicle navigation
- GPS-denied personnel and pedestrian tracking
- Impact monitoring, drop testing, and crash detection
- Equipment monitoring and preventative maintenance
- Industrial motion and vibration analysis
- Sports performance analysis and healthcare monitoring
- Aeronautical and defense systems
- Down-hole applications
- Motion capture, virtual reality, and human interfaces
- Education and performing arts
