Thursday, February 17, 2011

CrazyEngineers Forum - Electrical & Electronics Engineering

CrazyEngineers Forum - Electrical & Electronics Engineering

Printed Circuit Board (PCB) for a CubeSat mini satellite

Posted: 17 Feb 2011 02:12 AM PST

Printed Circuit Board (PCB) for a CubeSat, one kg, one cubic decimeter demonstrative satellite -------- I have to make the double sided PCB of a Cubesat power control and distribution unit similar to this one. Question:Is it possible to fabricate the PCB home using the photoresist method or the components are too tiny and traces too thin for this method to work (see the pdf file in the link, it contains a list with all the packages used)? PS: I would appreciate answers especially from people with real hands-on experience in making high quality home made PCBs, not from individuals having just theoretical knowledge.

Waste Heat

Posted: 16 Feb 2011 08:31 PM PST

Is there any possibility to use the waste heat which is coming out through a chimney whose temperature around 150 deg C in many of the industries?

Gas Turbine

Posted: 16 Feb 2011 08:27 PM PST

I want to calculate the overall efficiency of a gas turbine coupled with generator in a co generation plant with HRSG (Heat Recovery Steam Boiler)...
I need to make an performance evaluation..
Need help with formulae... thanks..

regarding the ph test...........

Posted: 16 Feb 2011 04:54 PM PST

somebody heard of it????
please reply to it...................
and can i appear for it i am presently in 3rd year...............:rolleyes:

IR Transmitter and Receiver

Posted: 16 Feb 2011 06:18 AM PST

I want to built IR transmitter and receiver to turn on and off an LED from 10-15 feets.

if u have any circuit or u have done any thing like this plz help me
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