CalTester
analysis starts with calibration
Behind every robust analysis is calibration you can trust
Proper laboratory calibration includes the accurate determination of the positions of the force platform(s) and cameras in the laboratory coordinate system. CalTester is an easy-to-use tool and software program that provides you with the configuration and calibration information you need for your lab's motion capture and force measurement systems.
- CalTester is an essential tool for motion capture labs that:
- Have instrumented treadmills
- Have instrumented stairs
- Move cameras and/or move force platforms regularly
- Have amplifier switches that can be easily bumped, or are regularly changed
- Have settings that are regularly changed
- Have students or unsupervised visitors in the laboratory
- Are required to have regulatory oversight of their laboratory
Peer-reviewed calibration
Accurate and reliable kinematics and kinetics data are essential to ensure appropriate movement analysis. Any errors in the parameter settings or calibration measurements will lead to incorrect values of kinetic calculations that rely on the force data.
The CalTester system offers an easy-to-use tool and software module based on peer-reviewed research:
The calibration process
The CalTester system is easy to use, allowing anyone to ensure calibrated force measurement system within their motion capture volume.
A Mechanical Testing Device (MTD) rod is used together with a handle and a test plate to produce data that is sampled simultaneously from the force platform and motion capture cameras as forces are applied to the force platform. The CalTester module then uses this data to estimate errors in the centre of pressure and orientation of the measured force vector.
Need to document your setup? Easily generate a complete Laboratory Calibration Test Report from the CalTester module to satisfy reporting requirements.
Contact us to add the CalTester module to your Visual3D license today.
The Mechanical
Testing Device
Need the hardware? The CalTester system uses the MTD rod, which is a rigid, machined rod with a pointed tip at each end and five tracking targets. It can also be used as a digitized pointer.
The MTD-2 is a precision-machined calibration-testing tool that can be assembled in less than a minute to create a calibration-testing object suitable for a number of 3D biomechanics laboratory tests. There is also an MTD-3 rod that supports an additional load cell which can be used in place of the MTD-2. It is manufactured by Sisco Mocap.
Contact Sisco Mocap for a quote and to learn more.
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Acknowledgement
HAS-Motion, Inc. acknowledges that the development of the CalTester software module was funded in part by an STTR grant (R43 HD37286) from the National Institute of Child Health and Human Development (NICHD). We also gratefully acknowledge assistance provided by the Physical Disabilities Branch in the Warren Grant Magnuson Clinical Center at the National Institutes of Health.