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Andrew Starr, 09/07/2012 06:55 am

Guiding principles of this STM design

  1. Minimise the effects of external vibrations by minimising size and mass
  2. Minimise the effects of temperature variation by matching material coefficients of expansion as closely as possible
  3. Minimise the effects of electronic noise by locating the sensitive circuitry as close as possible to the signal source
  4. Maximise instrument flexibility and ease of use by doing as much signal processing and control as possible in the digital domain

Main building blocks of the STM

High frequency vibration isolator

{{dmsf(20,Test link to DMSF)}}

Piezotube and sample mount

Coarse positioner mechanism and probe holder

Piezotube and coarse positioner support

Bias voltage module

Tunnelling current amplifier

Control module

HF_vibration_isolator_discs_ODE.jpg (261 kB) Andrew Starr, 09/06/2012 03:47 am

Base_disc_with_viton_spacers_ODE.jpg (93.1 kB) Andrew Starr, 09/06/2012 03:47 am

Assembled_HF_vibration_isolator_ODE.jpg (79.5 kB) Andrew Starr, 09/06/2012 03:47 am

Partial_assembly_to_check_ceramic_mount_ODE.jpg (119.3 kB) Andrew Starr, 09/06/2012 03:47 am

Piezotube_diagram.jpg (45.3 kB) Andrew Starr, 09/07/2012 08:52 pm

Piezotube_with_wires_attached.jpg (107.8 kB) Andrew Starr, 09/08/2012 12:41 am

Ceramic_holder_1.jpg (92.8 kB) Andrew Starr, 09/17/2012 03:27 am

Ceramic_holder_2.jpg (121 kB) Andrew Starr, 09/17/2012 03:27 am

desk.jpg (496 kB) Andrew Starr, 09/23/2012 03:58 am

STM_-_Base_plate.jpg (38 kB) Andrew Starr, 09/26/2012 03:26 am

base_plate.jpg (99.6 kB) Andrew Starr, 10/05/2012 11:25 pm

desk2.jpg (131.6 kB) Andrew Starr, 10/05/2012 11:26 pm

stm-bpca-bvc.jpg (256.9 kB) Andrew Starr, 10/15/2012 02:04 am

tca.jpg (194.5 kB) Andrew Starr, 10/28/2012 12:52 am

tca2.jpg (26.8 kB) Andrew Starr, 10/28/2012 12:52 am

bpca_x_3.jpg (212 kB) Andrew Starr, 10/30/2012 04:15 am

BPCA_detail.jpg (109.8 kB) Andrew Starr, 11/16/2012 12:45 am

STM_15112012.jpg (133.1 kB) Andrew Starr, 11/16/2012 12:45 am

bvc.jpg (404.5 kB) Andrew Starr, 11/20/2012 03:59 am

tca_schematic.jpg (388.8 kB) Andrew Starr, 11/20/2012 04:04 am

ceramic_mount.jpg (68.2 kB) Andrew Starr, 11/21/2012 03:01 am

stm-bvc-reva.jpg (249.8 kB) Andrew Starr, 12/02/2012 02:15 am

tca_schematic_rev_b.jpg (432.8 kB) Andrew Starr, 01/21/2013 12:59 am

stm-tca-revb.jpg (188.5 kB) Andrew Starr, 02/12/2013 01:26 am

stm-bvc-revb.jpg (150.7 kB) Andrew Starr, 02/28/2013 11:09 pm

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