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Honeywell TruePoint HMR3500 Manual

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TruePoint™ Compass Module
HMR3500
The HMR3500 TruePoint™ compass module is a 3-axis
digital compass solution with a customizable coordinate
system for mounting in any desired orientation. Three
Anisotropic Magneto-Resistive sensors and three MEMs
accelerometers are combined to provide compass heading
as well as pitch and roll angles.
The HMR3500 has provisions for hard and soft-iron
correction algorithms to handle magnetic distortion effects.
In addition a World Magnetic Model feature is provided to
automatically add declination angle corrections for
reference to true north (geographic north).
Honeywell provides product excellence and performance by introducing innovative solid-state magnetic sensor solutions.
These are highly reliable, top performance products that are delivered when promised. Honeywell's magnetic sensor
products provide real solutions you can count on.
FEATURES
4
Precision Compass Accuracy
4
Tilt-Compensated
4
Update Rate to 25Hz
4
Compact Solution in a 1.97" by 1.65" by
0.52" PCB Assembly
4
Hard and Soft-Iron Compensation
Routines
4
World Magnetic Model Included
4
-40° to +85° C Operating Temp Range
4
+5 DC Supply Voltage Range
4
Light Weight
4
Customizable Coordinate System
4
All Solid State Components
BENEFITS
Better Than 1° Nominal Heading Accuracy (1 σ), 0.1° Resolution
4
4
±89° Pitch and Roll, 360° Continuous Roll Capabilit y
4
Rapid Heading Computations for Guidance Applications
4
Small Size for Tight Mounting Conditions, Minimal Layout Constraints
4
User Driven Calibration to Null Stray Fields. A Single Routine for Both
Hard and Soft Iron Corrections
4
Choice of True North or Magnetic North References
4
Consumer and Industrial Environment Uses
4
Customizable to a Wide Variety of Power Sources
4
3.0 oz with Aluminum Housing, 0.6 oz PCB only
4
24 Custom Coordinate Orientations
4
Rugged for User-Defined Orientation Plane

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   Summary of Contents for Honeywell TruePoint HMR3500

  • Page 1 (geographic north). Honeywell provides product excellence and performance by introducing innovative solid-state magnetic sensor solutions. These are highly reliable, top performance products that are delivered when promised. Honeywell’s magnetic sensor products provide real solutions you can count on.
  • Page 2 °C Storage (OEM only) +125 °C Null zeroing prior to use of the HMR3500 and upon exposure to temperature excursions beyond the Operating Temperature limits is required to achieve highest performance. * Tested at 25° C unless stated otherwise. www.honeywell.com...
  • Page 3 The vertical board is held orthogonal to the main board by two brass hardware blocks to ensure mechanical orthogonality. 1.97 1.97 φ φ 0.116 0.116 4 PLCS 4 PLCS Forward Forward 1.57 1.57 1.00 1.00 Direction Direction 0.150 0.150 1.65 1.65 0.150 0.150 0.170 0.170 Pin 1 Pin 1 Figure 1 HMR3500 Top View and Dimensions www.honeywell.com...
  • Page 4 Heading computation uses the magnetic and tilt information inputs after compensation for errors. From the basic magnetic heading, a declination value may be added to arrive at a geographic north referenced heading. An index offset value may also be added to correct for mechanical installation misalignment on the target platform. www.honeywell.com...
  • Page 5 CompassHost can be run under Windows 9x, ME, NT 4.0, 2000 or their successors. One available serial port is required for communicating with the compass. Processor, memory, and disk space requirements are minimal. The CompassHost software is not described in this datasheet, but given in depth description in the HMR3500 user’s guide document. www.honeywell.com...
  • Page 6 Honeywell reserves the right to make changes to improve reliability, function or design. Honeywell does not assume any liability arising out of the application or use of any product or circuit described herein; neither does it convey any license under its patent rights nor the rights of others.

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