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Inclinometers and Orientation Sensors 3DM®

Inclinometers and Orientation Sensors 3DM®

Product catalog summary

Overview: The document describes the 3DMTM solid state orientation sensor, which integrates micro-miniature sensors with embedded software to measure pitch, roll, and yaw angles. It utilizes orthogonal arrays of magnetometers and accelerometers, relying on Earth's gravitational and magnetic fields, eliminating the need for a pulsed magnetic field reference.

Applications: The sensor is versatile, suitable for navigation systems, biomedical applications (joint angle tracking), civil engineering (structural deflections), computer science (animation input), and virtual reality (tracking systems).

Features: The sensor offers sourceless operation, allowing unrestricted movement. It can output raw magnetic field and accelerometer data or processed pitch, roll, and yaw angles. It supports RS-232 serial or RS-485 network output formats.

Specifications:

Update Rate: 30 Hz for angle mode, 70 Hz for raw mode.
Output Modes: Raw accelerometer and magnetic field data, or pitch, roll, and yaw in degrees.
Transmission Rate: 9600 bits/sec.
Supply Voltage: 5 volts DC, Supply Current: 50 milliamps/node.
Operating Temperature: -25 to 70 degrees C.
Module Size: Two size options available.
Module Mass: 26.3 grams.

Performance:

Range: Yaw ±180 degrees, Pitch ±180 degrees, Roll ±70 degrees.
Resolution: 12-bit A/D, with angle resolution of less than 0.1 degrees for pitch, roll, and yaw.
Temperature Drift: Minimal drift with specified confidence intervals.
Accuracy: Typical accuracy of ±0.7 degrees for pitch and roll, and 1.5 degrees for yaw.

Technical Details: The sensor uses an orthogonal array of DC accelerometers for orientation measurement and Eulerian coordinate transformations for yaw computation. It includes a block diagram illustrating the system's components and operation.

Contact Information: For orders or inquiries, contact MicroStrain at 800-449-3878 or visit their website at www.microstrain.com.

Catalog excerpts

Inclinometers and Orientation Sensors 3DM®-1

navigation systems compassing, guidance biomedical joint angle tracking, control systems civil engineering structural deflections, geomechanics computer science animation input, pointing devices virtual reality tracking systems, gaming input devices >

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