Design and Construction
Version 8 (Andrew Starr, 09/07/2012 01:58 am) → Version 9/50 (Andrew Starr, 09/07/2012 06:55 am)
h1. Guiding principles Principles of this STM design
# Minimise the effects of external vibrations by minimising size and mass
# Minimise the effects of temperature variation by matching material coefficients of expansion as closely as possible
# Minimise the effects of electronic noise by locating the sensitive circuitry as close as possible to the signal source
# Maximise instrument flexibility and ease of use by doing as much signal processing and control as possible in the digital domain
h1. Main building blocks of the STM
h2. High frequency vibration isolator
{{dmsf(20,Test link to DMSF)}}
h2. Piezotube and sample mount
h2. Coarse positioner mechanism and probe holder
h2. Piezotube and coarse positioner support
h2. Bias voltage module
h2. Tunnelling current amplifier
h2. Control module
# Minimise the effects of external vibrations by minimising size and mass
# Minimise the effects of temperature variation by matching material coefficients of expansion as closely as possible
# Minimise the effects of electronic noise by locating the sensitive circuitry as close as possible to the signal source
# Maximise instrument flexibility and ease of use by doing as much signal processing and control as possible in the digital domain
h1. Main building blocks of the STM
h2. High frequency vibration isolator
{{dmsf(20,Test link to DMSF)}}
h2. Piezotube and sample mount
h2. Coarse positioner mechanism and probe holder
h2. Piezotube and coarse positioner support
h2. Bias voltage module
h2. Tunnelling current amplifier
h2. Control module