Sensors and actuators Flashcards
(16 cards)
What is the primary function of sensors in automation control systems?
To monitor changes in the environmental conditions around them
Sensors provide critical data for system operation and decision-making.
What type of output do analogue sensors produce?
Continuous output signals, usually in the form of a voltage proportional to the quantity being measured
Analogue sensors are essential for applications requiring precise measurements.
What type of output do digital sensors produce?
Discrete output signals, such as 1s for high signals and 0s for low signals
Digital sensors are commonly used in binary systems.
What is an example of an active sensor?
An infrared proximity sensor
Active sensors are crucial for applications that require interaction with the environment.
What is an example of a passive sensor?
A temperature sensor
Passive sensors do not actively interact with the environment.
What is the function of actuators in automation control systems?
To turn an electrical, mechanical, or environmental signal into physical movement
Actuators are vital for executing commands from control systems.
What type of output do analogue actuators produce?
Continuous output signals
Analogue actuators are used where smooth, variable movements are needed.
What type of output do digital actuators produce?
Discrete output signals
Digital actuators are often used in applications requiring precise, on/off actions.
What characterizes active actuators?
They introduce new energy into a system and/or require an external energy supply
Active actuators are often used in robotics and automation.
What characterizes passive actuators?
They do not introduce new energy into a system and do not require an external energy supply
Passive actuators can rely on existing energy sources.
List two applications of sensors and actuators.
- Switching systems for machine safety control
- Proximity sensing for vehicles and automation systems
These applications highlight the versatility of sensors and actuators in various industries.
What is an example of laser sensing in control systems?
Measuring the dimensions of products on a production line
Laser sensing is critical for quality control in manufacturing.
What is a vision system used for in robotics applications?
To provide visual feedback for navigation and manipulation
Vision systems enhance the capabilities of robotic systems.
How can sensors and actuators be connected to other components?
Via wires and cables (hard-wired) or wireless systems such as Wi-Fi and Bluetooth
This flexibility allows for diverse system designs.
What types of power supplies can be used for sensors and actuators?
- Batteries
- AC adapters
A reliable power supply is essential for the proper function of these devices.
True or False: Sensors and actuators can only be connected through hard-wired systems.
False
They can also connect via wireless systems.
