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Thursday, August 6, 2009

Update on DC Motor Analyzer

Most of you are aware of the DC motor analyzer program I wrote. I have been in the process of upgrading it to visual basic dot net. The old version was written in vb 5. As you can see, in the picture above, I've added a few things.

Now you can select Motor1 to Motor3 and hit save for future use. You can also select it and hit load. This is great for comparing a few motors and configuration settings.

I've also added an efficiency setting. The older program defaulted to 30 %. This is really handy for more real world applications. For instance, the blades may be 30% efficient, but the motor may only be 50%. In that case, set the efficiency field to 15%. In other words, it is an overall efficiency measurement. Everything except voltage drop. That is handled separately.

When you move your mouse over the chart area it now displays watts and amps.

I've also added a field in the bottom left to show the wind speed that battery charging starts. If you set it up to start charging at too low a wind speed and you don't have enough torque, then you will get an error now.

I have a few small changes to make and I still have to get the print function to work. But it will be available sometime in the next couple of weeks. Any customer that purchased the older program can upgrade to this version for free. You will just have to send me an email and the date of your purchase.

If you don't have the older version but would like to see it operate, you can see some of my older videos on youtube. You can also see a video of the updated software there as well. It doesn't have all the changes yet because I made the video yesterday.

Richard

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