The Certus HD Position Sensor uses high-speed, real-time digital photogrammetry and optical triangulation to track the precise 3D positions of targets over a large volume. Use the Certus HD system to determine the position and orientation of many moving objects by generating thousands of data points per second in real time. You can analyze and report data in either a fixed frame of reference or relative to another object’s local coordinate system.



Certus HD uses NDI’s First Principles™  software package to capture and rapidly display 3D/6DOF dynamic motion data.

  • Easy-to-use interface eliminates complicated learning curves, allowing new users to collect and analyze data almost immediately
  • True Synchronization allows you to synchronize and collect data from other digital and analog devices
  • Export data during or after measurement
  • Track complex object movements in all six degrees of freedom
  • Track and record up to 512 targets and 170 objects simultaneously
  • Integrate probe into tracking function
  • Display data as text, 3D, digital read out, or strip chart

Together, Optotrak Certus and the First Principles software allow you to measure:

  • Vibrations
  • Traveled Paths
  • Velocities
  • Accelerations
  • Displacements
  • Positions
  • Orientations
  • Angles


Accuracy and Measurement Volume 

RMS Accuracy 2m 4m 6m
Vertical/Horizontal 0.1mm 0.15mm 0.25mm
Depth 0.15mm 0.25mm 0.45mm


Dynamic Measurement Capabilities
Targets (3D) Up to 512
Rigid Bodies (6DOF) Up to 170
Sampling Speed (targets/sec.) Up to 4500


Position Sensor
Dimensions (LxWxH) 200 mm x 1125 mm x 160 mm
Weight 18kg
Power Input 100-240V Ac, 50/60 Hz 2.5A
Computer Interface PCI, Ethernet, USB


The high-speed 6DOF motion tracking provided by the Certus HD allows operators across various industries to perform numerous applications, including the following:

Dynamic Tracking

  • Vibration analysis
  • Part deformation
  • Structural Testing
  • Door & Closure Alignment

Robot Measurement & Guidance

  • Robot Verification
  • Real-time 3D/6D feedback
  • Robot Measurement Solutions
  • Guided Assembly