Tim Robinson's Differential Analyzer
The author's current differential analyzer model. This machine has four integrators each equipped with a two stage torque amplifier, a dual output table, and an input table. The modular construction makes it easy to extend, or to remove sections for maintenance. Each leadscrew on the I/O tables or the integrators has a digital rotation counter attached, making initial setting of the machine simple and accurate.
Click any picture for a larger version
The table arrangements anticipate eventually increasing the machine to six integrators and to add a second input table, also equipped to operate as a multiplier. The wonderful thing about a differential analyzer is that, just as with Meccano itself, you can never have too much, and there are always ways to redesign it to make it even better - so it's a never ending project!
Integrators
Input Table
Dual Output Table
Section of the Interconnect
I exhibited the differential analyzer at the Vintage Computer Festival. See pictures from the event and a live movie of the machine operating here. Here is another movie captured by Bill Selmeier at a demonstration to volunteers at the Computer History Museum on 1/8/05:
The links below (as I get time to add the pages) will provide more details:
Integrator
Torque amplifier
Revolution counter
Main interconnect
Helical gearbox
Frontlash unit
Drive motor
Input table
Output table
Last modified: 10 February 2005 If you experience any problems with this site, please contact the webmaster |
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2003-2005 Tim Robinson |