logging in or signing up Sensors for Robots 3 Junyo Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 1906 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: January 07, 2008 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: ashachandola (16 month(s) ago) Great. may we pls have permission to download it for class room ? thanx a pile Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Sensors: SensorsDefinition: Definition Sensor: A device which provides information about the physical world.Transducers: Transducers Convert of energy from one form to another. e.g. microphone and speakers convert between acoustic and electrical energy. Many transducers are bidirectional. Some sensors are transducers; almost all involve transduction.What can be sensed?: What can be sensed? Direct Transduction: e.g., electric and magnetic fields, mechanical strain, temperature, electromagnetic energy... Derived quantities: e.g. distance, human presence, heading, air flow, molecular concentrations, air pressure, color... Common Animal Sensors: Common Animal SensorsUnusual Animal Sensors: Unusual Animal Sensors Magnetoreceptor: Sensing of earth’s magnetic field. Seen in newts, birds, rats and maybe humans. Electric field sensing: Seen in a variety of fish. Cerci: Cockroach airflow sensors Body as eye: Brittlestar covered with optically perfect lensesBiological Rotation Sensor: Biological Rotation Sensor semicircular canals detect angular acceleration 3 canals: one per plane inertia of fluid causes deflection of sensory elementRobot design as creature design: Robot design as creature design Animal sensory systems adapted to functional needs and environment. Robots can use non-biological sensors which suit them to their ‘ecosystems’ e.g., neutron-sniffing robodog, UAV with weather radar, etc. Sensors for dead reckoning: Sensors for dead reckoning Typical sensor: optical encoder One type found in standard computer mouse Quadrature encodingSensors for orientation/heading: Sensors for orientation/heading Use: orientation/heading Options: gyroscope, geomagnetic sensors Issues: gyro drift, B-field distortionSensors for obstacle detection: Sensors for obstacle detection e.g., where are walls? Options: ultrasonic TOF, lateral-effect photodiode (PSD) Sensors for detecting humans: Sensors for detecting humans Options: computer vision, pyroelectric sensor pyroelectric sensors detect far-IR radiation can also detect heat, fire standard alarm sensor (cheap) You do not have the permission to view this presentation. In order to view it, please contact the author of the presentation.
Sensors for Robots 3 Junyo Download Post to : URL : Related Presentations : Share Add to Flag Embed Email Send to Blogs and Networks Add to Channel Uploaded from authorPOINTLite Insert YouTube videos in PowerPont slides with aS Desktop Copy embed code: (To copy code, click on the text box) Embed: URL: Thumbnail: WordPress Embed Customize Embed The presentation is successfully added In Your Favorites. Views: 1906 Category: Education License: All Rights Reserved Like it (1) Dislike it (0) Added: January 07, 2008 This Presentation is Public Favorites: 2 Presentation Description No description available. Comments Posting comment... By: ashachandola (16 month(s) ago) Great. may we pls have permission to download it for class room ? thanx a pile Saving..... Post Reply Close Saving..... Edit Comment Close Premium member Presentation Transcript Sensors: SensorsDefinition: Definition Sensor: A device which provides information about the physical world.Transducers: Transducers Convert of energy from one form to another. e.g. microphone and speakers convert between acoustic and electrical energy. Many transducers are bidirectional. Some sensors are transducers; almost all involve transduction.What can be sensed?: What can be sensed? Direct Transduction: e.g., electric and magnetic fields, mechanical strain, temperature, electromagnetic energy... Derived quantities: e.g. distance, human presence, heading, air flow, molecular concentrations, air pressure, color... Common Animal Sensors: Common Animal SensorsUnusual Animal Sensors: Unusual Animal Sensors Magnetoreceptor: Sensing of earth’s magnetic field. Seen in newts, birds, rats and maybe humans. Electric field sensing: Seen in a variety of fish. Cerci: Cockroach airflow sensors Body as eye: Brittlestar covered with optically perfect lensesBiological Rotation Sensor: Biological Rotation Sensor semicircular canals detect angular acceleration 3 canals: one per plane inertia of fluid causes deflection of sensory elementRobot design as creature design: Robot design as creature design Animal sensory systems adapted to functional needs and environment. Robots can use non-biological sensors which suit them to their ‘ecosystems’ e.g., neutron-sniffing robodog, UAV with weather radar, etc. Sensors for dead reckoning: Sensors for dead reckoning Typical sensor: optical encoder One type found in standard computer mouse Quadrature encodingSensors for orientation/heading: Sensors for orientation/heading Use: orientation/heading Options: gyroscope, geomagnetic sensors Issues: gyro drift, B-field distortionSensors for obstacle detection: Sensors for obstacle detection e.g., where are walls? Options: ultrasonic TOF, lateral-effect photodiode (PSD) Sensors for detecting humans: Sensors for detecting humans Options: computer vision, pyroelectric sensor pyroelectric sensors detect far-IR radiation can also detect heat, fire standard alarm sensor (cheap)