Mechanical sensing

Atomic Force Microscopy(AFM) or Scanning Probe Microscopy(SPM)

~ nanometer

Image modes
Contact mode, Tapping mode, Non-contact mode

Non-contact Mode: Oscillates above the adsorbed fluid layer on the surface during scanning

• References

  High Speed Scanning with SPM
  How does AFM work
  Nanoworld
  

• AFM Probe

AFM Probe USC-F0.3-k0.3-10, image above, $980 per 10, Budgetsensors Fabrication steps of AFM Probes

Tip wear and tip breakage in high-speed atomic force microscopes

Digitizer

Touch Probes

resistance between the balls and rollers.

BLUM, The trigger signal is generated via shading of a miniature light barrier

• CNC Machine -> Workspace alignment/present setting / workpiece measurement, digitizing or inspection

• Passive Robot arm

• Optical Optically tracked touch probes GOM

• DIY Projects
  

Digitizer

Touch Probe

Building a Digitizing Probe

Opacity(Fluid Scanner)

MilkScanner

Video

a pool + a webcam + ink + custom software,2008