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Sensors
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Sensors

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some instrumental sensors

some instrumental sensors

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Sensors Presentation Transcript

  • 1. SENSORS
  • 2. CONTENT• INTRODUCTION• TRANSDUCER• CLASSIFICATIONS OF INSTRUMENTS
  • 3. INTRODUCTION• CONVERTS PHYSICAL CHANGE INTO ELECTRICAL OR NON-ELECTRICAL QUANTITY.
  • 4. INTRODUCTION
  • 5. TRANSDUCER• A transducer is a device that converts one form of energy to another
  • 6. Some typical Sensors and TransducersThermistors Ambient Light Sensor Thermocouple
  • 7. Some Typical Transducers LVDTs RTDs Thermowel
  • 8. CLASSIFICATIONS OFINSTRUMENTS
  • 9. ON THE BASIS OF SIGNALSAnalog Digital • An Analog instrument gives an • A digital instrument has an output which varies output which varies in discrete continuously as the quantity steps and so can only have a being measured changes finite number of values
  • 10. ON THE BASIS OF POWER CONSUMPTIONACTIVE PASSIVE• External power source is • No external power source is needed required
  • 11. ON THE BASIS OF OPERATIONAutomatic Manual• An auxiliary device is present. • Need an operator.• Fast dynamic response. • Poor dynamic response.• Lower operating cost. • Operation cost is higher.
  • 12. On the Basis of display of resultDeflection Null• Simple in construction and • Manual operation. operation. • Poor dynamic response.• Good dynamic response.
  • 13. On the Basis of contactContacting Non contacting• Instrument is present in the • Not in direct contact with the medium itself. measuring medium.• Eg. Clinical thermometer. • Eg. Optical pyrometers.
  • 14. Thank youSUBMITTED BY: Amit Thakur