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Optical –          Induc       CapacitiveThrough-beam       tiveOptical – Retro-   Reedreflective         switch       Sym...
Transmitte   Receiverr
Transmitte   Receiverr
Targ             etTransmitte          Receiverr
Transmitte   Receiverr
Transmitte   Receiverr
Transmit   Receivter        er
Transmit   Receivter        er
Transmit   Receivter        er
Transmitte   Receiverr
Transmitte   Receiverr
Targ             etTransmitte          Receiverr
TTransmitter   R/Receiver                  Reflector                  (prismati                  c)
TTransmitter   R/Receiver                  Reflector                  (prismatic)
TTransmitter   R/Receiver                  Reflector                  (prismati                  c)
Optical sensors (Retro-reflective)Type : Retro reflective           Target                    T Transmitter        R /Rece...
TTransmitter   R/Receiver                  Reflector                  (prismatic)
TTransmitter   R/Receiver                  Reflector                  (prismatic)
TTransmitter   R/Receiver                  Reflector                  (prismatic)
TTransmitter   R/Receiver                  Reflector                  (prismatic)
TTransmitter   R/Receiver                  Reflector                  (prismatic)
TTransmitter   R/Receiver                  Reflector                  (prismatic)
TTransmitter   R/Receiver                  Reflector                  (prismatic)
Optical sensors (Diffuse)Type : Diffuse
Optical sensors (Diffuse)Type : Diffuse                Target                 T  Transmitter    R  /Receiver
Optical sensors (Diffuse)Type : Diffuse                 T  Transmitter    R  /Receiver
Optical sensors (Diffuse)Type : Diffuse                 T  Transmitter    R  /Receiver
Optical sensors (Diffuse)Type : Diffuse                 T  Transmitter    R  /Receiver
Optical sensors (Diffuse)Type : Diffuse                 T  Transmitter    R  /Receiver
Optical sensors (Diffuse)Type : Diffuse                 T  Transmitter    R  /Receiver
Optical sensors (Diffuse)Type : Diffuse                 T  Transmitter    R  /Receiver
High frequency magneticfield (300 to 800 kHz)         Active         surface        Resonant        circuit coil          ...
Targ               etSensorOscillationAmplitudeSens     ONor       OFFoutp
TargetSensorOscillationAmplitudeSensor   ONoutputsignal   OFF
TargetSensorOscillationAmplitudeSensor   ONoutputsignal   OFF
TargetSensorOscillationAmplitudeSensor   ONoutputsignal   OFF
TargetSensorOscillationAmplitudeSensor   ONoutputsignal   OFF
TargetSensorOscillationAmplitudeSensor   ONoutputsignal   OFF
TargetSensorOscillationAmplitudeSensor   ONoutputsignal   OFF
TargetSensorOscillationAmplitudeSensor   ONoutputsignal   OFF
TargetSensorOscillationAmplitudeSensor   ONoutputsignal   OFF
Glass Tube filled                Reed    LEDwith nitrogen contact   indicator                s
Reed switch
Reed switch
24v
24v
Connection   Resonant       High        LEDcable        circuit coil   frequency   Indicator                            ma...
Sensor is looking    Electrostaticfor a change in      fieldcapacitance in the   Activeactive field         surface       ...
Target
Sensor is adjusted sothat it does not ‘see’the wall of thevessel.
As the levelrises the fluidaffects thesensor field.
Until thesensorswitches.
• Potentiometers (Pots)
Optical Rotary Encoders:
•Disadvantages:
Inducti                        ve                        Capaci+ 18   to 30 VoltsDC.                        tive          ...
Capacitive Sensor with     Normally open function+ 18 to 30 VoltsDC.             Output0V
Sensor connection
Sensor connection                       24v                       DC                             +    18 to 30 Volts DCPNP...
Sensor connection                       24v                       DC                             +    18 to 30 Volts DCNPN...
Sensors
Sensors
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Sensors
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Sensors
Sensors
Sensors
Sensors
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Sensors
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Sensors
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Sensors

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Transcript of "Sensors"

  1. 1. Optical – Induc CapacitiveThrough-beam tiveOptical – Retro- Reedreflective switch Symb olsOptical - InductiveDiffuse magnetic
  2. 2. Transmitte Receiverr
  3. 3. Transmitte Receiverr
  4. 4. Targ etTransmitte Receiverr
  5. 5. Transmitte Receiverr
  6. 6. Transmitte Receiverr
  7. 7. Transmit Receivter er
  8. 8. Transmit Receivter er
  9. 9. Transmit Receivter er
  10. 10. Transmitte Receiverr
  11. 11. Transmitte Receiverr
  12. 12. Targ etTransmitte Receiverr
  13. 13. TTransmitter R/Receiver Reflector (prismati c)
  14. 14. TTransmitter R/Receiver Reflector (prismatic)
  15. 15. TTransmitter R/Receiver Reflector (prismati c)
  16. 16. Optical sensors (Retro-reflective)Type : Retro reflective Target T Transmitter R /Receiver Reflector (prismatic )
  17. 17. TTransmitter R/Receiver Reflector (prismatic)
  18. 18. TTransmitter R/Receiver Reflector (prismatic)
  19. 19. TTransmitter R/Receiver Reflector (prismatic)
  20. 20. TTransmitter R/Receiver Reflector (prismatic)
  21. 21. TTransmitter R/Receiver Reflector (prismatic)
  22. 22. TTransmitter R/Receiver Reflector (prismatic)
  23. 23. TTransmitter R/Receiver Reflector (prismatic)
  24. 24. Optical sensors (Diffuse)Type : Diffuse
  25. 25. Optical sensors (Diffuse)Type : Diffuse Target T Transmitter R /Receiver
  26. 26. Optical sensors (Diffuse)Type : Diffuse T Transmitter R /Receiver
  27. 27. Optical sensors (Diffuse)Type : Diffuse T Transmitter R /Receiver
  28. 28. Optical sensors (Diffuse)Type : Diffuse T Transmitter R /Receiver
  29. 29. Optical sensors (Diffuse)Type : Diffuse T Transmitter R /Receiver
  30. 30. Optical sensors (Diffuse)Type : Diffuse T Transmitter R /Receiver
  31. 31. Optical sensors (Diffuse)Type : Diffuse T Transmitter R /Receiver
  32. 32. High frequency magneticfield (300 to 800 kHz) Active surface Resonant circuit coil LED indicator Connection cable
  33. 33. Targ etSensorOscillationAmplitudeSens ONor OFFoutp
  34. 34. TargetSensorOscillationAmplitudeSensor ONoutputsignal OFF
  35. 35. TargetSensorOscillationAmplitudeSensor ONoutputsignal OFF
  36. 36. TargetSensorOscillationAmplitudeSensor ONoutputsignal OFF
  37. 37. TargetSensorOscillationAmplitudeSensor ONoutputsignal OFF
  38. 38. TargetSensorOscillationAmplitudeSensor ONoutputsignal OFF
  39. 39. TargetSensorOscillationAmplitudeSensor ONoutputsignal OFF
  40. 40. TargetSensorOscillationAmplitudeSensor ONoutputsignal OFF
  41. 41. TargetSensorOscillationAmplitudeSensor ONoutputsignal OFF
  42. 42. Glass Tube filled Reed LEDwith nitrogen contact indicator s
  43. 43. Reed switch
  44. 44. Reed switch
  45. 45. 24v
  46. 46. 24v
  47. 47. Connection Resonant High LEDcable circuit coil frequency Indicator magnetic field
  48. 48. Sensor is looking Electrostaticfor a change in fieldcapacitance in the Activeactive field surface Active electrode Earth electrode LED indicator Adjusting screw Connection cable
  49. 49. Target
  50. 50. Sensor is adjusted sothat it does not ‘see’the wall of thevessel.
  51. 51. As the levelrises the fluidaffects thesensor field.
  52. 52. Until thesensorswitches.
  53. 53. • Potentiometers (Pots)
  54. 54. Optical Rotary Encoders:
  55. 55. •Disadvantages:
  56. 56. Inducti ve Capaci+ 18 to 30 VoltsDC. tive Opti Output cal Magn etic Ultra sonic0V Normall y open Normally closed
  57. 57. Capacitive Sensor with Normally open function+ 18 to 30 VoltsDC. Output0V
  58. 58. Sensor connection
  59. 59. Sensor connection 24v DC + 18 to 30 Volts DCPNP Type• Output is Positive Output• Positive switching 0V 0v
  60. 60. Sensor connection 24v DC + 18 to 30 Volts DCNPN Type• Output switches Outputthrough to 0v• Negative switching 0V 0v

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