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Pictures from Quoddy Head, Maine

Photo gallery from the Three Seas program trip to Lubec Maine. October 2010.

A thermocouple datalogger based on the Arduino platform

Updated with new Arduino code July 8 2012.

It never hurts to collect more data, and I often find myself wanting to record temperatures from a few extra animals. Most (all?) commercial thermocouple dataloggers that will record temperatures from multiple thermocouples cost several hundred or thousands of dollars. I set out to put together a relatively cheap 8-channel thermocouple datalogger based on the open-source Arduino development platform.

My 8-channel thermocouple datalogger. A single type-T thermocouple is plugged in to one of … Continue Reading

Shooting movies with a Canon 40D

This Sourceforge project “EOS Camera Movie Record” provides the ability to record high quality movies from older Canon EOS DSLR’s that have Live View functionality, but lack a movie mode from the factory (40D, 50D, 450D etc). It requires you to be tethered to a PC to record the video via USB cable, and there’s no sound input.

The video is 1024×680 pixels, and is saved as a .avi file. The video capture  seems to hover around 21-22 frames per second (confirmed in Matlab + Labview), even though the EOS Camera Movie Record window may report a higher frame … Continue Reading

Spring in the intertidal

Spring sprang sometime recently, making for nice tidepooling weather in Nahant.

Ascophyllum nodosum waiting for the tide to return.

Semibalanus balanoides sunning themselves

Recently settled Semibalanus balanoides barnacles covering Mytilus edulis mussels.

Formatting Endnote citations revisted

Here are the basics of inserting citations from your Endnote library into a Word document. This example uses Word 2007 and Endnote X3, but the formatting rules listed here apply to earlier versions of those two programs. I tend to use “temporary citations” while writing a paper, and do the final formatting of citations and insertion of the bibliography after everything else is finished. This keeps Endnote from screwing with my paper until I’m absolutely ready.

To start with, let’s say I want to have a citation in a sentence I’m writing. I’ve found the citation in my Endnote library shown … Continue Reading

Using the USB-500 datalogger in Windows 7

As a follow-up to this earlier post on the USB-501TC thermocouple datalogger, I’ve now successfully gotten the USB-500 software running under Windows 7, in a slightly roundabout way.

You might recall that Measurement Computing has been spectacularly tardy in updating their various software to install and run under the newer 64-bit versions of Windows (Vista and Windows 7). Fortunately, if you run Windows 7, you can run the USB-500 software in Windows 7’s Virtual XP mode, provided you have appropriate hardware and Windows 7 Professional (Home Premium and below won’t cut it) to run the virtual machine. If you do … Continue Reading

Thermocouple datalogger – the USB-501TC

In 2008, Measurement Computing released a self-contained datalogger that will record temperatures from a thermocouple continuously.

USB-501TC

The USB-501TC will read 32,510 temperature samples, each time-stamped. It will read K, J, and T-type thermocouples, and ships with the K-type thermocouple shown in the picture. The temperature readings can be taken at a number of intervals ranging from 1 second out to 12 hours.

Under the cap you find a standard USB plug, and the housing can be opened to access the replaceable 3.6V  lithium battery … Continue Reading

New arrangement

Blogger decided to stop supporting users that hosted material on their own sites, so I’ve begun the transition to WordPress. The old material from my “Stuff” journal still exists, and the highlights are listed on the Archive page.

Privacy Policy

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