Wiring up transient voltage suppression for all channels. I’m using shielded twisted pair for interconnects.
Fire the coils!
30 05 2010Here is a video of firing the coils:
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Categories : coils, Sydney Experiment
TVS Test
29 05 2010Worked on the transient voltage suppression system all day.
I wired up a single differential channel on the USB 6008 with TVS protection:
The channel seemed to behave normally with the TVS circuit installed. Next is to test it with a voltage spike. Maybe start with this guy:
Simple Labview VI to monitor the voltage:
Also cleaned up the computer cart:
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Categories : Electrical Engineering
Transient Voltage Suppression
22 05 2010I enjoy drawing my schematics on the whiteboard and snapping a quick picture. This is the schematic for transient voltage suppression going into the USB 6008:
Started wiring it up:
The diodes are heavy duty:
The diode’s leads are too thick for the USB 6008 Prototyping board:
I can still solder these diodes on, but it will get crowded on this board:
So I will also use standard prototyping board:
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Categories : Electrical Engineering
Lab Time
16 05 2010Spent some time in the lab. Really loving my new photo blogging capabilities. Shoot first, answer questions later.
Received a bunch of parts from mouser. Including the protection diodes.
Prototyping board for NI USB 6008. I should have ordered two!
Did a tour of my shop neighbor’s guitar workshop:
Made progress on the coil power supply chassis:
And played around with ferrofluid:
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Categories : Data Acquisition, Electrical Engineering, Sydney Experiment
Photo Stream
9 05 2010I recently acquired a remarkable little piece of technology called eye-fi. Its an SD memory card for your digital camera with built in WIFI. As soon as I take a picture it is uploaded to Picassa and my computer. It’s amazing.
Photography is the most important part of this blog, but until now… the most cumbersome. It was a 10 step process to get a photo from my camera to the blog. Now I am publishing a photo stream just by taking the photos. So easy.
The upshot is I will be publishing about 100 photos every day I’m in the lab… you will literally see them before I do.
So without further ado, here is the new photo stream. And here is a tour of the lab in photos from today. Some highlights:
Picked up a wireless USB hub:
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Categories : Instrumentation
Coil Power Supply 10 Cap Test
8 05 2010Today I did a full 10 capacitor 450V test fire of the coil power supply into the coils:
No problems, everything went well.
On a disappointing note… it looks like Goddamn vacuum pump is broken again: the vent value going into the turbo pump is stuck open, allowing atmosphere to flow into the chamber. Maybe I fried the valve with a voltage spike.
Comments : 4 Comments »
Categories : coils, polywell, Power Supply, Sydney Experiment
