|
|
Haptic Devices: Sensorized Thimble
The Background:
In a haptic interface, the human subject interacts with a virtual display which
he or she can modify based on visual, tactile, or kinesthetic feedback. In haptics applications,
a properly-fitting mechanism is required to allow the user to push, squeeze, or grasp
an object.
The Challenge:
Developing a small, light-weight, force-sensing equipped device which can be
easily maneuvered by the user and which will encourage “natural exploration” of objects.
 |
 |
| CAD drawing and subsequent prototype of haptic thimble developed at Universidad
Politecnica de Madrid. Components 1-4 are Tekscan’s FlexiForce Sensors |
The Solution:
Researchers at Universidad Politecnica de Madrid integrated FlexiForce®
sensors into a lightweight (8 grams) thimble device, which fits over the user’s fingers. The
geometry of the device is quite similar to the human finger. Due to its construction, it provides
more freedom and natural exploration of objects than some traditional haptic end
effectors. FlexiForce sensors are used to estimate the forces exerted by the user during varioue
manipulations. FlexiForce was selected due to its thinness (0.2mm), light weight, and
performance specifications, particularly its repeatability, which is +/- 2.5%.
FlexiForce sensors are fully customizable to suit your unique OEM application. Standard
sensors are also available for proof of concept, or for a quick, low quantity, R&D solution.
Benefits:
- Ultra-thin sensor construction and flexibility means minimal interference/
disturbance to normal action
- Accurate response gives your customers and end users confidence
in the performance of your product
- Knowledgeable/experienced technical staff help you develop the most effective,
economical sensor based on your specific requirements. All manufacturing takes
place at ISO 9001 & 13485 certified Tekscan headquarters.
- 100% factory inspection ensures your sensors meet established performance
specifications.
|
|