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Wanding Calibration BT-1

(Preliminary)

Wanding Calibration

To calibrate BTSensors using the BT-1 Calibration Wand

  1. Configure the Mini Beacons (on the Sync Dock) in Device Manager:
    1. Open the Device Settings window in Device Manager to configure the Mini Beacons for calibration.
    2. From the Beacon ID scroll box, select a Beacon ID number for all the three Mini Beacons on the Calibration Wand (under 12).
    3. (Optional) From the LED Brightness (ms) scroll box, you may need to increase the length of exposure of the Mini Beacons according to the conditions of your calibration process. We recommend that you adjust the exposure of the BTSensors (Slim 13s) in Motive before you consider this optional step.  
  2. Snap-mount three fully charged Mini Beacons with clear diffusers into the magnetic mounts on the Wand module.
    •   BT1WandMiniBeacon  
  3. Configure the BTSensors in Motive.
    1. In Motive, select the BTSensor from the list of connected BTSensors in the Devices window and go to the Properties window.
    2. In the General Settings section, set Video Mode to Object.
    3. Set IR Filter to On.
    4. In the Live Reconstruction tab on the Application Settings window, click Marker Labeling Mode to Active and Passive Markers or Passive Markers Only.
    5. You can adjust the Exposure and Gain settings of a BTSensor according to the image view output.
  4. Configure calibration settings in the Camera Calibration window in Motive.
    1. Select Full calibration.
    2. From Wand Option in the Calibration tab, set OptiWand to Custom.
    3. Set Center Distance (mm) to 175.
  5. Click Start Wanding.
    • Result
      • The Mini Beacon LEDs on the Calibration Wand should be visible in Motive as infrared sources.
      • BTSensors record calibration wand data.
      • Calibration Engine in Motive records the samples of each BTSensor and the spread of samples.
    • Note: See the sections Calibrating a BTSensor and Masking Infrared Interference for Calibration for reference information.
  6. Hold the Wand Module from below with the Mini Beacons facing upwards and wave it underhandedly in a fanning "pizza-slice" motion while moving around the tracking space to create multiple data points. Ensure that all the LEDs are always viewed by the BTSensors.
  7. Monitor the wanding samples being recorded in the Camera Preview and Perspective View panes in Motive. The Calibration Engine section gives feedback about the calibration and the estimate on the quality of the calibration based on the number of samples recorded: Low, Medium, High, or Very High.
    • Note: Estimates are approximate calculations based on the number of samples being recorded and are not indicative of the actual result.
  8. Click Calculate.
    • Result:
      • Motive calibrates the BTSensors based on the collected data. Calibration Engine displays the current state of the calibration, result rating, and overall quality.
      • The calibration results will be applied automatically to the system if the rating for each BTSensor reaches "Excellent" or greater and the Overall Results quality reaches "Excellent" or greater.
    • Note: See the sections Calibrating a BTSensor and Masking Infrared Interference for Calibration for reference information.