Kinarm | Interactive Robotics Brain Injury Research

  • Products
  • Clinical Applications
  • News
  • Support
  • About Us
  • Contact

Mobile nav

Answer for How to calculate actual time period between KINARM kinematic samples

Answer for How to calculate actual time period between KINARM kinematic samples

Posted on Nov 21, 2012

As pointed out in the KINARM User Guides, the motion control card the controls the KINARM robots samples the kinematic data at ~1.129 kHz, and that data is then re-sampled and saved at 1 kHz. It is possible that someone might want to re-create the original time-steps. Attached is code that can help with that.
However, there are some caveats. Re-creation of the time-steps is done by using the velocity and position signals can calculating what delta-t must have been. This approach is only possible for non-zero velocities. Furthermore, at velocities near zero, there can be some rounding error that give erroneous results. Given that the most likely use for such information is to perform other kinematic analyses (e.g. calculate jerk), small errors when V ~ 0 are unlikely to cause problems in such situations.
That attached code is not perfect, but gives a starting point to start performing this calculation, if it were necessary.

Support

  • New User Training
  • Install/Maintain Your KINARM Lab
  • User Guides & Documentation
  • Software Downloads
  • Creating Custom Tasks
  • Sample Custom Tasks
  • Training Videos
  • Q&A Forum
  • Publications by Research Area

Questions about Kinarm products?

Please feel free to contact us, we’d be happy to help.

Contact Us

Dexterit-E Explorer

View any Dexterit-E exam file. FREE to Download!

Learn More

KST Summary

Our Kinarm Standard Tests enable clinical researchers to perform precise neurological assessment.

Learn More

Products

  • Platform Comparison
  • Kinarm Exoskeleton Lab
  • Kinarm End-Point Lab
  • Kinarm Standard Tests
  • Dexterit-E
  • Dexterit-E Explorer
  • NHP Kinarm Exoskeleton Lab

Clinical Applications

  • Clinical Applications
    • Stroke and TIA
    • Traumatic Brain Injury (TBI)
    • Neurological Disease
    • Pediatric
    • Primarily Non-Neurological
  • Clinical Research Sites
  • Publications

News

  • Kinarm News
  • Events
    • Neuroscience
    • Kinarm Camp
  • Product Notices
  • @KinarmLab Twitter Feed
  • Open Jobs

Support

  • Kinarm Help & Support
  • Installing & Maintaining Your Kinarm Lab
  • User Guides & Documentation
  • Software Downloads
  • Creating Custom Tasks
  • Sample Custom Tasks
  • Training Videos
  • Q&A Forum

About Us

  • About Us
  • Our People
  • Quality
  • Supplier Requirements
  • End-User License Agreement
  • Intellectual Property
  • Privacy & Terms

Contact

  • Contact Kinarm
    • International Sales Agents
  • Request an Account
  • Login
footer-logo

140 Railway St. Kingston, ON K7K 2L9 Canada Toll Free: (888) 533-4393 Phone: (613) 507-4393 info@kinarm.com

© Copyright BKIN Technologies. All Rights Reserved

Quality | Privacy Policy | Web design/development by 1dea Design + Media Inc.