Motion capture camera system (Optotrak Certus, Northern Digital Inc)
This camera system allows us to measure three-dimensional kinematics in real time. We use this to measure joint kinematics, soft tissue strains, and relative rigid body movement (for example, implant micro-motion).
- 4m x 3m x 3.5m capture volume
- 10 micron resolution
- 4600 Hz acquisition frequency
Materials test machine (Instron)
We can measure the tensile, compressive, and shear mechanical properties of biological tissues in vitro or within a biological environment chamber.
- Load measurement accuracy: +/- 0.5% of reading down to 1/1000 of load cell capacity option (2580 Series load cells)
- Up to 2.5 kHz data acquisition rate option simultaneous on load, extension, and strain channels
- Speed range of 0.001 – 3000 mm/min (0.00004 -120 in/min)
Dynamic pressure measurement (TekScan)
We can measure the time and spatial varying pressure within joints or between fixtures using a flexible pressure measurement device.
- I-scan system designed for joint pressure systems
- Pressure maps for shoulder, wrist, and knee joint
6 degree of freedom load cells (JR3 and ATI)
We can measure the time varying forces and moments in a compact load cell and DAQ system that integrates with custom fixtures as well as the materials testing machine to allow for smaller-scale high resolution kinetic data capture.
Our lab is an affiliate member of the Beckman Institute Imaging Technology Group.
The Microscopy Suite offers a wide range of imaging modalities and supporting equipment for the preparation, imaging, and analysis of a variety of biological, materials, and biomaterials specimens.
The Vis Lab supports a variety of visualization research, including 2D and 3D image analysis and quantification, scientific visualization, ultra-high speed video, macro-photography, macro-video, video production, 3D animation, high-resolution 2D scanning, 3D object scanning, research presentation, publication graphics, and additional capabilities in support of imaging.
DMA800 Dynamic Mechanical Analysis (DMA) measures a material’s Young’s modulus or viscoelastic properties as a function of temperature (or time). Testing can be performed in either tensile or cantilever bending geometries.
HYSITRON TI-950 TRIBOINDENTER The Hysitron TI 950 TriboIndenter at the Materials Research Laboratory is a versatile instrument with capabilities beyond traditional quasistatic nanoindentation. In addition to a standard transducer which can apply micronewton-to-few-mN loads over a displacement range of several micrometers, a high load transducer allows indents to be made at loads of up to 2.8 N over a displacement of up to 90 microns.
The Advanced Materials Testing and Evaluation Laboratory is a state-of-the-art facility for mechanical testing of coupon specimens to determine baseline engineering properties, conduct sophisticated biaxial testing, and perform full field optical stress analysis.
The lab includes test frames with a range of tension-tension and tension-torsion loading at rates appropriate for creep testing up to high cycle fatigue analysis. Each of these machines can additionally be coupled with a broad range of temperature control capabilities.
Mechanical Testing Machines
- 10 kN uniaxial servohydraulic frames (3)
- Mini 500 N test frame frame
- 90 kN Creep test frames (2)
- Ceramic compressive fatigue test fixture
- Corrosive environment test laboratory
- R.R. Moore Rotating fatigue machine (10,000 rpm)
Nondestructive imaging capabilities
– Can be interfaced to servohydraulic load frames for coordinated image capture
– Video extensometry and Digital Image Correlation –