Search for the noise-source and remedy for Optical tweezers http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2011...
Steve-office power spectrum Graph 1 120Hz major frequency Graph 2 120Hz major frequency Graph 3 120Hz major frequency
Steve-DAQ2 power spectrum Graph 1 120Hz major frequency 210Hz major frequency 120Hz major frequency Graph 1 Graph 1
X-Piezo and Z-Piezo power spectrum Graph 1 Graph 2 180Hz major frequency 130Hz & 2155Hz major frequency
Luca and cooling fans power spectrum Graph 1 Graph 2
Airborne noise spectrum in the lab Midlab1 Midlab2 Near hood wall 150 and  270 Hz major frequency 120 Hz major frequency 1...
Near exhaust Inside hood 150 Hz major frequency 150 Hz major frequency
Chassis/lab wall power spectrum Ch/lab wall1 Ch/lab wall2 Hoodwall1 150 Hz major frequency Broad disperse band of frequenc...
Airborne noise spectrum in the Chassis AC unit 150 Hz major frequency Graph 1 Graph 2 Graph 3 270 Hz major frequency 125 H...
Steve office Steve DAQ2 X-Piezo Z-Piezo Luca camera Hood 150, 270, 225 Hz 150, 125, 270, 435, 535 Hz Chassis 120 Hz ≤ -10....
Remedy: Design and Solution
Old design: Trap-setup for sample holder stages Sample holder stage X- Piezo stage Piezo holder stage Vibrations Vibrations
New design: Trap-setup for sample holder stages Sample holder stage X- Piezo stage Piezo holder stage
Sample holder stage (plate) Aluminum stage Acrylic plate regular Acrylic plate  advance
Sketch-up for sample holder plates
Test setup  sensor source Diaphragm cutoff vibrations
Test result of black aluminum platform
Test setup for aluminum plate vibrations
Test setup for plastic plate vibrations
Result comparison of sample holder plates
Piezo holder stages Aluminum stage Plastic stage regular Plastic stage advance upper bottom
Sketch-up for Piezo holder stages
 
Test setup  sensor source Diaphragm cutoff vibrations
Test setup for aluminum stage vibrations
Test setup for plastic stages Acoustic foam curtain
Result comparison of piezo holder stages
Microscope breadboard platform (isolator)
Top View Screw hold Plate hold
Bottom View Regular feet Holy feet 3”
Microscope breadboard platform test setup Speaker Sensor vibrations
Speaker Sensor Microscope breadboard platform test setup Screw hold, Regular feet
Microscope breadboard platform test setup Plate hold, Holy feet
Microscope breadboard platform Result
 
Dichroic holder stage Regular stage Lens holder
Regular dichroic stage test setup
 
Designed dichroic holder stage platform
Holder Dichroic holder stage
From below Front view Dichroic holder stage holder
 
Lens holder 2d holder Lens tube clamps
Lens tube 2d-holder clams
 
Advance-design dichroic stage
 
 
 
Advance-design dichroic stage test setup
Optical table Vs breadboard on regular stage
Optical table Vs breadboard on Advance stage
Regular Vs advance dichroic stage on optical table test Result
Regular Vs advance dichroic stage on breadboard test Result
Comparison among regular stage on OT&BB and adv. Stage on OT&BB
Upcoming SlideShare
Loading in …5
×

Search for the noise source and remedy for optical tweezers

1,011 views

Published on

Optical tweezers are affected by airborne and mechanical noises; this presentation is a saga of my struggle with it.

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

Search for the noise source and remedy for optical tweezers

  1. 1. Search for the noise-source and remedy for Optical tweezers http://openwetware.org/wiki/User:Pranav_Rathi/Notebook/OT/2011/06/21/Noise_issue_with_the_optical_tweezers
  2. 2. Steve-office power spectrum Graph 1 120Hz major frequency Graph 2 120Hz major frequency Graph 3 120Hz major frequency
  3. 3. Steve-DAQ2 power spectrum Graph 1 120Hz major frequency 210Hz major frequency 120Hz major frequency Graph 1 Graph 1
  4. 4. X-Piezo and Z-Piezo power spectrum Graph 1 Graph 2 180Hz major frequency 130Hz & 2155Hz major frequency
  5. 5. Luca and cooling fans power spectrum Graph 1 Graph 2
  6. 6. Airborne noise spectrum in the lab Midlab1 Midlab2 Near hood wall 150 and 270 Hz major frequency 120 Hz major frequency 150 Hz major frequency
  7. 7. Near exhaust Inside hood 150 Hz major frequency 150 Hz major frequency
  8. 8. Chassis/lab wall power spectrum Ch/lab wall1 Ch/lab wall2 Hoodwall1 150 Hz major frequency Broad disperse band of frequencies 150 Hz major frequency
  9. 9. Airborne noise spectrum in the Chassis AC unit 150 Hz major frequency Graph 1 Graph 2 Graph 3 270 Hz major frequency 125 Hz major frequency
  10. 10. Steve office Steve DAQ2 X-Piezo Z-Piezo Luca camera Hood 150, 270, 225 Hz 150, 125, 270, 435, 535 Hz Chassis 120 Hz ≤ -10.8 225,945,1170 Hz 455,210,140Hz 180 Hz ≤ -9 260,390,520,650…Hz 130 Hz ≤ -2.4 Midlab 120 Hz Nearhood 150 Hz Midlab 150 ,270Hz Wall 165,220,270Hz Trap Air borne & vibration Air borne vibration Air borne Air borne & vibration Active Passive Summary
  11. 11. Remedy: Design and Solution
  12. 12. Old design: Trap-setup for sample holder stages Sample holder stage X- Piezo stage Piezo holder stage Vibrations Vibrations
  13. 13. New design: Trap-setup for sample holder stages Sample holder stage X- Piezo stage Piezo holder stage
  14. 14. Sample holder stage (plate) Aluminum stage Acrylic plate regular Acrylic plate advance
  15. 15. Sketch-up for sample holder plates
  16. 16. Test setup sensor source Diaphragm cutoff vibrations
  17. 17. Test result of black aluminum platform
  18. 18. Test setup for aluminum plate vibrations
  19. 19. Test setup for plastic plate vibrations
  20. 20. Result comparison of sample holder plates
  21. 21. Piezo holder stages Aluminum stage Plastic stage regular Plastic stage advance upper bottom
  22. 22. Sketch-up for Piezo holder stages
  23. 24. Test setup sensor source Diaphragm cutoff vibrations
  24. 25. Test setup for aluminum stage vibrations
  25. 26. Test setup for plastic stages Acoustic foam curtain
  26. 27. Result comparison of piezo holder stages
  27. 28. Microscope breadboard platform (isolator)
  28. 29. Top View Screw hold Plate hold
  29. 30. Bottom View Regular feet Holy feet 3”
  30. 31. Microscope breadboard platform test setup Speaker Sensor vibrations
  31. 32. Speaker Sensor Microscope breadboard platform test setup Screw hold, Regular feet
  32. 33. Microscope breadboard platform test setup Plate hold, Holy feet
  33. 34. Microscope breadboard platform Result
  34. 36. Dichroic holder stage Regular stage Lens holder
  35. 37. Regular dichroic stage test setup
  36. 39. Designed dichroic holder stage platform
  37. 40. Holder Dichroic holder stage
  38. 41. From below Front view Dichroic holder stage holder
  39. 43. Lens holder 2d holder Lens tube clamps
  40. 44. Lens tube 2d-holder clams
  41. 46. Advance-design dichroic stage
  42. 50. Advance-design dichroic stage test setup
  43. 51. Optical table Vs breadboard on regular stage
  44. 52. Optical table Vs breadboard on Advance stage
  45. 53. Regular Vs advance dichroic stage on optical table test Result
  46. 54. Regular Vs advance dichroic stage on breadboard test Result
  47. 55. Comparison among regular stage on OT&BB and adv. Stage on OT&BB

×