-[[!meta title="Grr Multimodes"]]
+[[!meta title="Grr MultiModes"]]
[[!meta date="2008-07-07 18:54:09"]]
-There was some trouble with tapping-mode imaging this morning, and with Prof.
-Yang's help things seem to be straightened out now. I tried both Nanoscopes
-with both Multimodes (we have two *nominally* identical systems), but had not
-bothered to swap heads. As it turned out, we had been using the infrared head
-(we have three heads), which wasn't working. Not that that was the only
-problem. As it turned out, tapping seems to be working with the combination
-<pre>
- Nanoscope 2 -- Multimode 1 -- Head 1 or 2
-</pre>
-As far as I can tell, the problem is generating the voltage for the piezo that
-vibrates the cantilever, which seems to take place
-[on the Multimode main board](http://www.physics.drexel.edu/~wking/rsrch/multimode/internals.shtml). Unless
-something is seriously wrong with the Nanoscope, it shouldn't matter which
-Nanoscope we use. I suppose I should trace the Nanoscope-Multimode
+There was some trouble with tapping-mode imaging this morning, and
+with Prof. Yang's help things seem to be straightened out now. I
+tried both NanoScopes with both [[MultiModes|MultiMode]] (we have two
+*nominally* identical systems), but had not bothered to swap heads.
+As it turned out, we had been using the infrared head (we have three
+heads), which wasn't working. Not that that was the only problem. As
+it turned out, tapping seems to be working with the combination
+
+ NanoScope 2 -- MultiMode 1 -- Head 1 or 2
+
+As far as I can tell, the problem is generating the voltage for the
+piezo that vibrates the cantilever, which seems to take place on the
+[[MultiMode main board|MultiMode/internals]]. Unless something is
+seriously wrong with the NanoScope, it shouldn't matter which
+NanoScope we use. I suppose I should trace the NanoScope-MultiMode
communication in both cases and look for something different.
-I've no idea how generating a tunable sine wave can be so complicated. The
-simple solution is to stick to *modular* equipment with open-standard,
-easily-accessible communication between them, but I don't have time to develop
-a system like that. Some day I will give up on Nanoscope troubleshooting and
-build a [GXSM system](http://gxsm.sourceforge.net/).
+I've no idea how generating a tunable sine wave can be so complicated.
+The simple solution is to stick to *modular* equipment with
+open-standard, easily-accessible communication between them, but I
+don't have time to develop a system like that. Some day I will give
+up on NanoScope troubleshooting and build a [GXSM
+system](http://gxsm.sourceforge.net/).
[[!tag tags/hardware]]
-The Multimode product line has been passed through several companies
+The MultiMode product line has been passed through several companies
over the years. It started out at [Digital Instruments][DI], which
was aquired by [Veeco][] in February 1998 before being passed off to
[Bruker][] in August 2010.
* A [MultiMode manual][manual]
[[!img multimode_assembled.jpg size="500x"
- alt="An assembled Multimode microscope"
- title="An assembled Multimode microscope"]]
+ alt="An assembled MultiMode microscope"
+ title="An assembled MultiMode microscope"]]
[DI]: http://www.di.com/
[Veeco]: http://www.veeco.com/
AFM head to tipholder line descriptions
=======================================
-Labeled looking down on tipholder along laser, with Multimode LCD at
+Labeled looking down on tipholder along laser, with MultiMode LCD at
bottom from top-left: 1 2 3/4 5 6
==== ===================== =================================================================
they were TTL compatible. A short while later (wink), the LabVIEW
code was up and running. The LabVIEW computer (via a PCI-6052E card
and BNC-2090 box) writes TTL stepper motor currents to the relevent
-lines on the Nanoscope↔Multimode cable using our break-in box.
+lines on the Nanoscope↔MultiMode cable using our break-in box.
Computer <-> Breakout box <-> MultiMode
NanoScope <------^
* [BNC-2090](http://sine.ni.com/nips/cds/view/p/lang/en/nid/1177)
* Nanoscope IIIa (altered)
* Homemade break in box
-* [[Multimode II AFM]]
+* [[MultiMode II AFM]]
Breakout box
------------
below. This gives us access to the stepper motor drive-lines.
[[!img break_in_box.jpg size="500x"
- alt="Break in box for Nanoscope-Multimode cable"
- title="Break in box for Nanoscope-Multimode cable"]]
+ alt="Break in box for Nanoscope-MultiMode cable"
+ title="Break in box for Nanoscope-MultiMode cable"]]
Control the motor
-----------------
write( output[index] );
}
-For my Multimode, the motor steps 'Up' when I equate:
+For my MultiMode, the motor steps 'Up' when I equate:
<table>
<tr><th>DB-25</th><th>Role</th></tr>
===============
[[!img multimode_interior_0.jpg size="500x"
- alt="The interior of the Multimode chassis with the main PCB removed"
- title="The interior of the Multimode chassis with the main PCB removed"]]
+ alt="The interior of the MultiMode chassis with the main PCB removed"
+ title="The interior of the MultiMode chassis with the main PCB removed"]]
[[!img multimode_main_board_chips.jpg size="500x"
- alt="The main board of the Multimode"
- title="The main board of the Multimode"]]
+ alt="The main board of the MultiMode"
+ title="The main board of the MultiMode"]]
General stepper motor wiring
----------------------------
[[!meta title="MultiMode head connection deconstructed"]]
[[!meta date="2008-07-15 17:48:17"]]
-After some tapping-mode debugging, I now know what *almost* all the lines
-connecting the
-[MultiMode head](http://www.physics.drexel.edu/~wking/img/multimode/multimode_head.jpg)
-to the
-[base](http://www.physics.drexel.edu/~wking/img/multimode/multimode_base_0.jpg)
-do. Take a look at my [notes](http://www.physics.drexel.edu/~wking/rsrch/multimode/internals.shtml#head).
+
+After some tapping-mode debugging, I now know what *almost* all the
+lines connecting the [[MultiMode]] head ([[!ltio
+MultiMode/multimode_head.jpg]]) to the base ([[!ltio
+MultiMode/multimode_base_0.jpg]]) do. Take a look at my
+[[notes|MultiMode/internals#afm-head-micro-d-15-connector-line-descriptions]].
If anyone has figured out line 4, or is using a MultiMode as an STM, please
[send me an email](http://www.physics.drexel.edu/~wking/contact.shtml).
[[!meta title="Stripchart"]]
[[!meta date="2008-07-08 17:03:08"]]
-I was trying to troubleshoot the feedback loop on our Nanoscope today, and
+I was trying to troubleshoot the feedback loop on our NanoScope today, and
when I went to fire up my [Comedi](http://www.comedi.org/)-driven stripcharts
-monitoring some lines in the DB-25 cable connecting the Multimode to the
+monitoring some lines in the DB-25 cable connecting the [[MultiMode]] to the
Nanoscope, I got a bunch of wierd errors (errnos 11 and 29). I tracked them
down to some of the Xlib function calls in my stripchart code (yes, I wrote my
own