Sensors

[Virtual Presenter] We are introducing the concept of transducers today. A transducer is a device that converts a physical stimulus into a more useful form. Transducers can be categorized into two main groups: analog and discrete. Analog transducers measure the physical stimulus in a continuous manner, while discrete transducers measure the physical stimulus in a discrete manner. Within the discrete group, we have two further subcategories: binary and digital. Binary transducers measure the physical stimulus using two distinct levels, while digital transducers measure the physical stimulus using a series of pulses. One of the most common types of transducers used in various applications is the pulse counter. Pulse counters are digital transducers that measure the number of pulses received over a specific period of time..

[Audio] Examine different types of sensors. Sensors are instruments that identify and quantify physical properties like temperature, R-F-I-D-, barcode, proximity, vision, gyroscope, compass, tilt, and acceleration. These sensors have numerous applications, including automotive and aerospace industries, healthcare, and manufacturing. By utilizing sensors, we can improve the precision and effectiveness of our procedures and gain important knowledge from our surroundings..

[Audio] Actuators are physical devices that transform commands from controllers into changes in physical parameters. These devices are capable of modifying physical quantities such as position and velocity. They act as transducers, converting one form of physical quantity into another, making them useful in a variety of applications. Because they bring about physical changes, actuators typically require low-level command signals to activate them. In some cases, an amplifier may be needed to supply enough power to drive the actuator. This is an important factor to consider when designing control systems and choosing the right actuator for a particular purpose..

[Audio] We will be discussing the various uses of actuators. An actuator is a device that transforms a physical stimulus into a more practical form. There are three main types of actuators: electrical actuators, which include electric motors, DC servomotors, AC motors, and stepper motors, as well as solenoids; hydraulic actuators, which use hydraulic fluid to amplify controlled signals; and pneumatic actuators, which utilize compressed air as the driving force..