The Product
“SIA” (Shape memory alloy Impact Actuator)
Seidensha created the haptic feedback device “SIA” (Shape memory alloy Impact Actuator) in cooperation with Ryoyo Electro and TGK.
The SIA gives tactile feedback to effectively simulate the feeling of clicking an actual button. The SIA is being used in capacitance switches, pressure-sensitive switches, and touch panels.
Seidensha also offers a simple Evaluation Kit or customized Demo System with the SIA.
APPLICATIONS:
ATM
Touch panel
example with two SIA mounted
Pad for notebook PC
Pad for PC (remodeling for tactile presentation)
The Technology
Compared to existing technology, the SIA offers a sensational haptic feedback. The key lies in the difference of acceleration as shown in the graphs below.
Existing technology only gives out weak vibrations. This is where the single and strong acceleration of the SIA stands out. It gives you a real sensation of “pushing a button”.
FEATURES:
- Adopts current-carrying shape memory alloy
- Impulse-like strong impact
- Fast response
- Simple structure
- Low cost
- Simple drive circuit
- High reliability
- Pressure-sensitive sensor function
- Zero-displacement recessed switch sensation
The SIA technology has been patented.
About the Company
Seidensha is an R&D-oriented venture company born out of the Higuchi Laboratory of the Department of Precision Mechanical Engineering at the University of Tokyo.
Currently, Seidensha is mainly focusing on evaluation and demonstration equipment for commercialization of the tactile device “SIA”, and joint development with component manufacturers.
Ryoyo Electro is promoting the commercialization of the device and offering proposals to various customers.
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