You are here

Hardware & Design

Statistics in Engineering: Linear Regression (Part 2 of 8)

Preface
This series is aimed at providing tools for an electrical engineer to gain confidence in the performance and reliability of their design. The focus is on applying statistical analysis to empirical results (i.e. measurements, data sets).

Introduction
This article will introduce linear regression on a data set using the R Project software. This is useful if your data is "on a line" rather than a Gaussian distribution.

Statistics in Engineering: Building Distributions from a Data Capture (Part 1 of 8)

Preface
This series is aimed at providing tools for an electrical engineer to gain confidence in the performance and reliability of their design. The focus is on applying statistical analysis to empirical results (i.e. measurements, data sets).

Product Verification for Electronic Hardware

I recently wired my lab for ethernet and began automating my testing with Python scripts and the awesome Python(x,y) environment curated and maintained by Google. Freed from the burden of so much test setup this got me thinking about how to design and execute a test which fully and accurately characterized the unit under test. This is broken into the following objectives:

A Basic Education In Electronics, OR How Real Devices Work (2009 Update)

Most books on electronics theory treat the subject of passives in the following way:

Circuit Design, From the Big to the Little (Revisited)

This is an update of an article I wrote almost two years ago. There are a few things I've wanted to change and so I'm taking the time now to expand the original. I hope this will be of some use to budding engineers and college students who are trying to wrap their head around the big picture. This is how I understand what an engineer does, but not necessarily how other engineers see things.

Building A High End Router From A Pentium II 266MHz PC

Synopsis
I recently upgraded my router from Debian Sarge (3.1) to Debian Etch (4.0). Debian is a fairly ideal platform for building routers. It includes all the software you need. The packaging is fantastic and most of it integrates fairly well. The Debian infrastructure is unsurpassed and so are its ideals. Here, I will share with you the steps required to build a professional router. I will also point out bugs and problems I had during the installation. Places where Debian could provide better integration and be more seamless.

Circuit Design, From the Big to the Little

In school, your studies inevitably boil down the the following:

While most schools are good at giving you the theoretical picture, most of it has nothing to do with reality. After graduation you realize that theory is only one part of the puzzle and for many, the least important, as only a small portion of engineers spend their time designing.

Gadgetry Evolution

The problem most people have is making the choice of what gadgets to carry with them. Already carrying an mp3 player and a cell phone is cumbersome. That is a compromise of what you could be carrying, thus there is a push towards greater integration of function into devices.

The best solution, functionally, is a laptop. It is the general, all purpose, everything available platform. But it's cumbersome, too. And it doesn't make for a good cell phone and is not as portable as a cell phone (concealability, culture trend, cost, etc.)

Analysis of Hard Drive Latencies and its Impact on Performance.

Introduction
I originally wrote this in college, a couple of years ago. I wrote how solid state drives would improve computer performance and wanted to update this article now that multi-core processors and solid state harddrives (SSD) have become a reality.

Power Theory: The Distribution Network

Introduction
After completing my research on real devices, I was ready to tackle power systems. I chose to start at the top and work my way down to the details. This article discusses power systems from a top level view and then explains how to design a power distribution network. We don't consider power system design, feedback or control here. The focus will be on the power distribution network. Almost everything I talk about here I learned from my colleagues.

Pages

Subscribe to RSS - Hardware & Design