Then a solenoid with a piece of membrane over it would also be solid state.
Why stop there, a servo with a piece of membrane would also be solid state.
Why stop there, a motor with a membrane..
This definition makes no sense to me.
The above are electromechanical parts. Piezos are somewhat an exception because electricity directly leads to a parts deformation without magnetic field moving a component of that part in an electric field. In fact a piezo is just one part with two contacts.
>Then a solenoid with a piece of membrane over it would also be solid state.
>Why stop there, a servo with a piece of membrane would also be solid state.
>Why stop there, a motor with a membrane..
>Piezos
All Correct.
Even when they are electrically powered, hydraulic and pneumatic servos are not usually liquid-state or gaseous-state electrical devices except for any vacuum tubes or electrolytic components.
When the electricity flows only through solid materials like copper, carbon, or silicon, and doesn't (intentionally) flow across things like liquids, air gaps, or evacuated spaces, that's solid-state.
Says someone who incorrectly thinks "solid state" here refers to the state of matter and thinks anything that's neither liquid nor gaseous is "solid state".