AI Article Synopsis
- - A novel method for measuring stiffness is introduced, focusing on how an object's lateral deformation changes when it is indented.
- - The system includes a force measurement module set between two equally spaced touch sensing modules, allowing for adjustable parameters to customize the sensing range and improve stiffness differentiation.
- - A portable measurement system was developed and tested on different materials, such as polymer foams and human skin, demonstrating effective performance.
Article Abstract
A new stiffness measurement method is proposed that utilizes the lateral deformation profile of an object under indentation. The system consists of a force measurement module between a pair of equidistant touch sensing modules. Unique feature of the method is that by adjusting the touch module separation, indenter protrusion, and spring constant of the force sensing module, one can choose a desired sensing range for the force module. This feature helps to enhance the stiffness differentiation between objects of similar hardness and avoids measurement saturation. We devised a portable measurement system based on the method, and tested its performance with several materials including polymer foams and human skin.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5712800 | PMC |
| http://dx.doi.org/10.3390/s17112686 | DOI Listing |
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