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2. Linear actuator - Wikipedia

   en.wikipedia.org/wiki/Linear_actuator

   A traveling-nut linear actuator has a motor that stays attached to one end of the lead screw (perhaps indirectly through a gear box), the motor spins the lead screw, and the lead nut is restrained from spinning so it travels up and down the lead screw. A traveling-screw linear actuator has a lead screw that passes entirely through the motor.

3. Closed-loop controller - Wikipedia

   en.wikipedia.org/wiki/Closed-loop_controller

   In the case of linear feedback systems, a control loop including sensors, control algorithms, and actuators is arranged in an attempt to regulate a variable at a setpoint (SP). An everyday example is the cruise control on a road vehicle; where external influences such as hills would cause speed changes, and the driver has the ability to alter ...

4. Closed-loop transfer function - Wikipedia

   en.wikipedia.org/wiki/Closed-loop_transfer_function

   The closed-loop transfer function is measured at the output. The output signal can be calculated from the closed-loop transfer function and the input signal. Signals may be waveforms, images, or other types of data streams.

5. Plant (control theory) - Wikipedia

   en.wikipedia.org/wiki/Plant_(control_theory)

   A plant in control theory is the combination of process and actuator.A plant is often referred to with a transfer function (commonly in the s-domain) which indicates the relation between an input signal and the output signal of a system without feedback, commonly determined by physical properties of the system.

6. Linear parameter-varying control - Wikipedia

   en.wikipedia.org/wiki/Linear_parameter-varying...

   In designing feedback controllers for dynamical systems a variety of modern, multivariable controllers are used. In general, these controllers are often designed at various operating points using linearized models of the system dynamics and are scheduled as a function of a parameter or parameters for operation at intermediate conditions.

7. Classical control theory - Wikipedia

   en.wikipedia.org/wiki/Classical_control_theory

   Modern control theory, instead of changing domains to avoid the complexities of time-domain ODE mathematics, converts the differential equations into a system of lower-order time domain equations called state equations, which can then be manipulated using techniques from linear algebra. [2]