MKM 503E-Week2_Sensors - MKM 503E- Week2 Sensors-1 prepared...

Info iconThis preview shows pages 1–8. Sign up to view the full content.

View Full Document Right Arrow Icon
MKM 503E- Week2 Sensors-1 prepared by Assist. Prof. Pinar Boyraz, PhD Fall 2011
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Outline PART I: Introduction to sensor technology Classification of Sensors Performance terminology for sensors Static and Dynamic Characteristics of Sensors Sensor Characteristics PART II: Physical models for mechanical systems Analogies Sensors at a glance Distance sensors: potentiometer, LVDT, optical encoder Movement sensors: velocity sensors, acceleration 2
Background image of page 2
PART I: Introduction to Sensor Technology 3
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Classification of Sensors /1 At the core of a sensor, there is a transducer. Transducer is a device which transforms energy from one type to another, even if both energy types are in the same domain. Typical energy domains are mechanical, electrical, chemical, magnetic, optical and thermal . Transducer can be further divided into Sensors , which monitors a system and Actuators , which impose an action on the system. Sensors are devices which monitor a parameter of a system, hopefully without 4
Background image of page 4
Classification of Sensors /2 5 Classification based on physical phenomena Mechanical: strain gage, displacement (LVDT), velocity (laser vibrometer), accelerometer, tilt meter, viscometer, pressure, etc. Thermal: thermo-couple, thermistor Optical: camera, infrared sensor Others … Classification based on measuring mechanism Resistance sensing, capacitance sensing, inductance sensing, piezoelectricity, etc. Materials capable of converting of one form of energy to another are at the heart of many sensors. Invention of new materials, e.g., “smart” materials, would permit the design of new types of sensors.
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Classification of Sensors /3 6 Various types of sensors that are classified by their measurement objectives will be covered here: Measurement Objective Sensor Distance: Linear/Rotational Linear/rotational variable differential transducer (LVDT/RVDT) Optical Encoder Electrical tachometer Hall effect sensor Capacitive transducer Strain gauge elements Interferometer Magnetic pickup Gyroscope Inductosyns (trademark of Farrand company) Acceleration Seismic accelerometer Piezoelectric accelerometer Force, torque and pressure sensors Strain gauge Dynamometers/ load cells Piezoelectric load cells Tactile sensor Ultrasonic stress sensor
Background image of page 6
7 Continued list of sensors: Measurement Objective Sensor Flow Pitot tube Orifice plate Flow nozzle, veturi tubes Rotameter Ultrasonic type Turbine flowmeter Electromagnetic flowmeter Temperature Thermocouples Thermistors Thermodiodes, thermo transistors RTD- resistance temperature detector Infrared type Infrared thermography Proximity Inductance, eddy current, hall effect, photoelectric etc. Light
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 8
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 47

MKM 503E-Week2_Sensors - MKM 503E- Week2 Sensors-1 prepared...

This preview shows document pages 1 - 8. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online