Planning the purchase of a nanopositioner requires some knowledge of the application measurement parameters and the operating conditions. The following checklist should help define the main areas of concern. The priority of each specification depends completely on the intended application. In some cases, one condition may affect another – such as desired speed of motion being affected by the weight of the moving assembly. The final nanopositioner design must contain a combination of characteristics which best suits the application. In some cases, custom nanopositioners may be necessary to provide a unique set of specifications needed for ideal performance. Mad City Labs is known for a willingness to customize standard designs or provide new innovative designs for difficult situations.
Nanopositioner Property Selection Checklist
• How many axes of motion are needed?
• Maximum range of motion per axis?
• Required resolution and repeatability per axis?
• How much weight will be moved (maximum, typical, and minimum)?
• What is the maximum required speed on each axis of motion? Note that the weight of the moving assembly affects the maximum achievable speed.
• Will the motion be a continuous or step by step?
• What are the ideal physical dimensions of the stage (length, width, height)?
• Is a center aperture required? What size?
• Are there physical interfacing issues, such as retrofitting to existing instrumentation?
• Are there environmental conditions that may impact the nanopositioning system, such as UHV, humidity, large magnetic fields, or variable temperatures?
• Is computer control required?