Actuators and sensors. part II презентация

Actuators and sensors. part II Lecture 13 Irob 2305 Introduction to Robotics

Introduction Robotic sensing is a branch of robotics science intended to give robots sensing capabilities, so that robots are more human-like. Robotic sensing mainly gives robots the ability to see, touch, hear and move and uses algorithms that require environmental feedback. The use of sensors in robots has taken them into the next level of creativity. Most importantly, the sensors have increased the performance of robots to a large extent. It also allows the robots to perform several functions like a human being.

Physical Measurements as input

Physical Measurements as input

Active vs. Passive Sensors Active sensors: Active remote sensors create their own electromagnetic energy that is transmitted from the sensor towards the terrain, interacts with the terrain producing a backscatter of energy and is recorded by the remote sensor’s receiver. Passive Sensors: Passive sensor detects the naturally emitted microwave energy within its field of view.

Digital vs. Analog Sensors 1) Digital sensors: The signal produced or reflected by the sensor is binary. 2) Analog sensors: The signal produces by the sensor is continuous and proportional to the measurand.

Digital Sensors Digital sensors are more straight forward than Analog No matter what the sensor there are only two settings: On and Off Signal is always either HIGH (on) or LOW (off) Voltage signal for HIGH will be a little less than 5V on your UNO Voltage signal for Low will be 0V on most systems

Analog sensors

Null and Deflection Methods

Input-Output Configuration

Vision

Touch

Hearing

SENSORS USED IN ROBOTICS

Smart home