Introduction to smart sensors & its’ application

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Introduction to smart sensors & its’ application

  1. 1. INTRODUCTION TO SMART SENSORS & ITS’ APPLICATION<br />Presented by<br />PRANAY MONDAL<br />(ACADEMY OF TECHNOLOGY)<br />AEIE 6TH SEM<br />Roll no.- 47<br />
  2. 2. CONTENTS<br /><ul><li>Introduction
  3. 3. What is Smart Sensors?
  4. 4. Usefulness of Si technology in Smart Sensors
  5. 5. Why smart sensor?
  6. 6. Components of smart sensor
  7. 7. General architecture of Smart Sensors
  8. 8. Evolutions of Smart Sensors
  9. 9. Advantages
  10. 10. Application of Smart Sensors
  11. 11. Industrial application area of Smart Sensors
  12. 12. Disadvantages</li></li></ul><li> INTRODUCTION<br /><ul><li>sensors are capable of manipulation and computation of the sensor-derived data
  13. 13. Sensor + interfacing circuit = smart sensor
  14. 14. Capable of</li></ul> * logic functions, <br /> * two-way communication,<br /> * make decisions.<br />
  15. 15. WHAT IS SMART SENSORS<br /><ul><li>A sensor producing an electrical output when combined with interfacing electronic circuits is known as “Smart Sensor", it is a combination of both sensor and actuator.
  16. 16. It simply physical, biological or chemical input & converts it to the measured value into a digital format.</li></li></ul><li>USEFULNESS OS SILICON TECHNOLOGY IN SMART SENSORS<br /><ul><li>Single chip solution
  17. 17. Very small in size
  18. 18. Less space in configuration
  19. 19. Work with small signals</li></li></ul><li>WHY SMART SENSORS?<br />Smart sensor enhances the following applications:<br /><ul><li>Self calibration: Adjust deviation of o/p of sensor from desired value.
  20. 20. Communication: Broadcast information about its own status.
  21. 21. Computation: Allowsone to obtain the average, variance and standard deviation for the set of measurements.
  22. 22. Multisensing: A single smart sensor can measure pressure, temperature, humidity, gas flow and infrared, chemical reaction surface acoustic vapour etc.
  23. 23. Cost effective: less hardware and reduction of repetitive testing make smart sensor cost effective.</li></li></ul><li>COMPONENTS OF SMART SENSORS<br />II. Transducer Interface Module (TIM)<br />I. Network Capable<br />Application Processor<br />(NCAP)<br /><ul><li>TEDS Storage
  24. 24. Analog Signal Conditioning
  25. 25. Triggering
  26. 26. Analog to Digital Conversion
  27. 27. Command Processing
  28. 28. Data Transfer
  29. 29. Communications
  30. 30. Communications
  31. 31. Interface Control
  32. 32. Message Routing
  33. 33. TIM Discovery and Control
  34. 34. Data Correction Interpretation of TEDS Data
  35. 35. Message Encoding and Decoding</li></li></ul><li>GENERAL ARCHITECTURE OF SMART SENOSRS<br />The generalized architecture of smart sensor is shown below:<br />
  36. 36. EVOLUTION OF SMART SENSORS<br /><ul><li>First generation devices had little, if any, electronics associated with them.
  37. 37. Second-generation sensors were part of purely analog systems with virtually all of the electronics remote from the sensor.</li></li></ul><li>3RD GENERATION SMART SENSOR<br />
  38. 38. 4TH GENERATION SMART SENSOR <br />
  39. 39. 5TH GENERATION SMART SENSOR<br />
  40. 40. advantages<br />Minimum Interconnecting Cables<br />High Reliability<br />High Performance<br />Easy to Design, Use and Maintain<br />Scalable -Flexible System<br />Small Rugged Packaging<br />Minimum Cost<br />
  41. 41. APPLICATIONS OF SMART SENSORS<br /><ul><li>Accelerometer:
  42. 42. It consists of the sensing element and electronics on silicon. The accelerometer itself is a metal-coated SiO2 cantilever beam that is fabricated on silicon chip where the capacitance between the beam and the substrate provides the output signal.</li></li></ul><li>APPLICATIONS<br /><ul><li>Optical sensor:
  43. 43. Optical sensor is one of the examples of smart sensor, which are used for measuring exposure in cameras, optical angle encoders and optical arrays. Similar examples are load cells silicon based pressure sensors.</li></li></ul><li>APPLICATIONS<br /><ul><li>Infrared detector array:
  44. 44. It is developed at solid laboratory of university of Michigan. Here infrared sensing element is developed using polysilicon.</li></li></ul><li>APPLICATIONS<br /><ul><li>Integrated multisensor:
  45. 45. This chip contains MOS devices for signal conditioning with on chip sensor. it is developed in university of California.</li></li></ul><li>INDUSTRIAL APPLICATION AREA OF SMART SENSORS<br /><ul><li>Structural monitoring:
  46. 46. It is needed to detect damages of industrial infrastructure.</li></li></ul><li>INDUSTRIAL APPLICATIONS<br /><ul><li>Geological mapping:
  47. 47. It is needed mainly to detect the minerals on the geological areas.
  48. 48. Digital imaging & interpretationof tunnel geology.
  49. 49. Remote measurementsof tunnel response.</li></li></ul><li>DISADVANTAGES<br /><ul><li>The smart sensor consists of both actuators & sensors, so it is more complexed than other simple sensors.
  50. 50. The complexity is much higher in the wired smart sensors, as a consequence the costs are also higher.</li></li></ul><li>

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