作動、起動、動作、操作

What is the difference between "actuation", "operation", and "activation"?

ChatGPT:

Each term has a distinct nuance, especially in technical contexts:

1. Actuation – Refers to the mechanical or physical movement of a component. It implies that something is being physically moved, triggered, or adjusted.

   • Example: The button's actuation triggers the switch mechanism.

2. Operation – A broader term that refers to the overall functioning or working of a device, system, or process. It does not necessarily imply physical movement.

   • Example: The operation of the touchscreen involves detecting capacitance changes.

3. Activation – Refers to turning something on, enabling functionality, or initiating a process. It suggests a change of state (from inactive to active) rather than continuous function.

   • Example: The activation of the sensor occurs when a finger is placed on the screen.

In your sentence:

• "Actuation of the sensor electrode cap" makes sense if the cap undergoes physical movement.
• "Operation of the sensor electrode cap" would be broader, including its overall function.
• "Activation of the sensor electrode cap" would imply turning it on or enabling it, which might not be appropriate unless it has an on/off state.

Since your sentence describes a component that moves to change capacitance, "actuation" is the most precise choice.