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Size: 3015
Comment: added controllers.
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| == Discussion List == http://lists.ucc.gu.uwa.edu.au/mailman/listinfo/radiotelescope |
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| * Find or buy the motors | * Find or buy the motors - Found in Physics Workshop |
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| * Design and build a proper base to replace the pallet - MarkTearle has some ideas | * Design and build a proper base to replace the pallet - [MTL] has some ideas |
Description
At some point in the past, Physics purchased an old RAN Bofors gun mount and bolted a dish to it and attached some motors and stuff to move it, but didn't succeed in writing code to control the thing. So there's a several hundred kilo gun mount sitting on the roof of Physics doing nothing, when it could be looking for UFOs or doing VLBI on a really small scale with the other radiotelescope.
Mostly, it's a cool project that will require input from all members of the UCC, whether what you care about is microcontrollers, operating systems, mechatronics, data storage/analysis, or the web.
It's also a great opportunity to learn about science and help out Physics, a cool but underfunded section of the University.
It's important to note that 1) The Radiotelescope will remain the property of the School of Physics and 2) We'll be giving it to them when it's 'working', along with the code to make it work and display the data.
Creation date: 15 March 2010
Location of source:
Project leader
List of people involved
Basically everyone.
Discussion List
http://lists.ucc.gu.uwa.edu.au/mailman/listinfo/radiotelescope
Project plan
Overall
Initial inspection
- Find or buy the motors - Found in Physics Workshop
- Talk to physics about getting a receiver installed
Gun mount
- Give it a good lube
- Design and build a proper base to replace the pallet - [MTL] has some ideas
- Test position sensors (pots)
- Select and move to final location
- Manually test movements (either by driving motor or with a big lever)
Control system
- Check power supply for safety before supplying power
- Inspect existing electronics and try to identify capabilities
- Test existing electronics
- Label all cables
- Identify current remote control capabilities
- Decide whether to use existing equipment or replace totally
Software
- Identify control system remote capabilities
- Look for existing control software
Other info
Control chips:
- 74LS22 - dual 4-input NAND gate
- 7407 - Hex inverter and buffer
- 555 - timer IC
- 2 x LM319N - dual voltage comparitors (?wired to potentiometer)
- LM348 - quad 741 op-amp
- OP07CN - very low offset single bipolar op-amps
3 x relays are dual-pole, dual throw: photo with block diagram
Stepper motor controller: RTA Pavia GMD 04 website uninformative datasheet
Links
