Artificial muscles can be realized with high-power electric actuators
Electrostatic actuators are simple, lightweight devices that mimic human muscles.
and their usage has been restricted to moving small devices since they require higher voltages to generate significant forces
Despite being small and low-powered, they can deliver a force strong enough to move small objects like tablets
Tokyo Tech developed an electrostatic actuator that can generate a strong force with a small driving voltage, which could lead to more flexible actuators
This gadget consists of two oppositely charged electrodes that generate a force whenever an electric field develops between them
Electrostatically actuated soft structures have the potential to create unique mechanical actuation strategies. an approach to fabricating a bimorph microactuator where the piezoelectric actuator is sandwiched .
The forces generated by electrostatic actuators depend on the voltage applied to their electrodes and the charges accumulated at the interface between the electrodes
to generate sufficient forces to support human movement and activities, these devices have to be supplied with a large voltage, which is hazardous to the body
Using ferroelectric materials that spontaneously polarize, Professor Nishimura and his team from Tokyo Tech have increased the accumulated charge by increasing the force of actuators
Charge separation can happen when ferroelectric materials are subjected to an electric field. Unlike conventional paraelectric materials, ferroelectrics retain their polarization after the electric field is removed,
The generated force is linearly proportional to the applied voltage since the ferroelectric materials are independent of the voltages. There are two things that ferroelectric media are better
they can generate a higher force by maintaining a large polarization even at low voltage, and the other is that their voltage response is linear, resulting in good device controllability, says Prof. Nishimura is the name of the person.
The generated force is proportional to the applied voltage since the ferroelectric materials are independent of the voltages. Prof. Nishimura said that there are two things that ferroelectric media are better
One is that they can generate a higher force by maintaining a large polarization even at low voltage, and the other is that their voltage response is almost linear, resulting in good device controllability