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Content by Jon Titus
Jon Titus
Member Since: June 26, 2011
Blogger
Blog Posts: 83
Posts: 667

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All (100)          Blogs(27)          Comments(73)         
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Comment:Thank you... - Jon Titus-12/9/2013
The Importance of Mentors
STEM Connection 
11/27/2013  42 comments
Jon Titus, a longtime contributor to Design News, is retiring. In this, his farewell column, he stresses the importance of having mentors, and thanks his own.
Account for Uncertainty
Blog 
11/12/2013  5 comments
It is important to keep in mind that measurement uncertainties do not always equal one half of the smallest measurement interval.
Create FIR Filters in Software
Blog 
10/2/2013  Post a comment
For this demonstration of FIR filters in operation an ARM mbed module was used in combination with an NXP LPC1768 microcontroller (ARM Cortex-M3 processor).
FIR Filter Coefficients
Mechatronics Zone 
9/6/2013  2 comments
Suppose you wanted to create a FIR filter with your own requirements. How would you find the necessary coefficients, and how many of them would you need?
Comment:A Metal Note - Jon Titus-8/28/2013
FIR Filters Without the Math
Guest Blogs 
8/2/2013  2 comments
Previous columns have described how analog and switched-capacitors filters work and provided a real example of each. Now on to digital filters that process discrete-time digital values, rather than analog signals.
Switched-Capacitor Filter Tests
Mechatronics Zone 
7/1/2013  5 comments
Switched-capacitor filters have a few disadvantages. They exhibit greater sensitivity to noise than their op-amp-based filter siblings, and they have low-amplitude clock-signal artifacts -- clock feedthrough -- on their outputs.
Switched-Capacitor Filters: An Introduction
Guest Blogs 
6/11/2013  4 comments
In a switched-capacitor filter, capacitors and switches take the place of resistors and accurately reproduce the characteristics of continuous-time Bessel, Butterworth, and elliptical filters.
How to Create a Low-Pass Filter
Blog 
5/7/2013  5 comments
Sometimes you will not find a low-pass filter with the specifications you need in an anti-alias circuit. So you might decide to design your own. But you wonder, “Can I get the same performance I see in application notes?”
An Introduction to Filters
Blog 
4/1/2013  2 comments
This intuitive and empirical approach examines low-pass filters commonly used as anti-alias front ends for analog-to-digital converters.
Even More on Rotary Encoders
Mechatronics Zone 
3/5/2013  2 comments
This column wraps up our discussion of encoders with information about resolvers, which provide angular data over 360 degrees.
More on Rotary Encoders
Blog 
2/6/2013  6 comments
A careful look at the signals reveals a way to increase resolution fourfold.
Have You Designed a Cool Gadget Recently?
Blog 
1/14/2013  11 comments
If you have created an interesting and useful gadget, the editors at Design News want to know about it.
Encoders Know All the Angles
Mechatronics Zone 
1/4/2013  8 comments
Engineers use rotary encoders to measure the angular position of an attached device or to measure distance indirectly.
Rotary Angle Encoders Go Programmable
Blog 
12/26/2012  3 comments
Addressing the need for customization, Novotechnik US offers programmable products that let engineers do things like create one-off encoders.
A Machinist's Calculator for the Holidays
Mechatronics Zone 
12/17/2012  18 comments
The Machinist Calc Pro computes speeds and feed rates for milling, turning, and drilling: cutting speed, spindle speed, feed rate (inches/minute), cutting feed, etc.
Engineering Faculty Debates Generalists vs. Specialists
Mechatronics Zone 
12/14/2012  24 comments
During a recent meeting with engineering-school faculty and alumni, Contributing Technical Editor Jon Titus talked about whether colleges should educate generalists or specialists. What do you think?
Comment:Re: Great Idea - Jon Titus-12/4/2012
SparkFun Takes Electronics to Future Engineers & Scientists
STEM Connection 
11/30/2012  16 comments
SparkFun has started a crowd-funding project to sponsor a tour that will promote electronics education throughout the US and perhaps in Canada, too.
An Undersampling Wrapup
Mechatronics Zone 
11/27/2012  Post a comment
Contributing technical editor Jon Titus wraps up his undersampling columns with sample rates and a plot with extrapolated lines.
Comment:Thank you - Jon Titus-11/14/2012
Comment:Re: Sonar? - Jon Titus-11/14/2012
Acoustic Signatures Reveal Railway Bearing Defects
Mechatronics Zone 
11/13/2012  13 comments
The RailBAM can detect damage to the wheelset bearings in trains sooner than other techniques, improving reliability and reducing maintenance costs.
Undersampling Shifts Signal Bandwidths
Mechatronics Zone 
10/31/2012  3 comments
In some cases, you can take advantage of aliasing and use it with a technique called under-sampling or bandwidth sampling.
Comment:Re: eval board - Jon Titus-10/26/2012
Comment:Re: eval board - Jon Titus-10/26/2012
Comment:Re: More bits - Jon Titus-10/25/2012
MCUs Simplify Resolver-Based Motor Control Systems
Blog 
10/25/2012  13 comments
You can buy resolver-to-digital converters, but a fast microcontroller can do the job just as well.
Undersampling Changes Bandwidths
Mechatronics Zone 
10/19/2012  9 comments
Before you choose a frequency, you should understand how each upper and lower sampling frequency affects aliasing of signals in the 8MHz bandwidth.
Comment:Similar problem - Jon Titus-10/16/2012
Comment:Raspberry Pi - Jon Titus-10/12/2012
Comment:Re: Erector set - Jon Titus-10/11/2012
Comment:Re: Erector set - Jon Titus-10/11/2012
Comment:Re: Erector set - Jon Titus-10/11/2012
Open-Source Kits Put Robots in Many Hands
Mechatronics Zone 
10/11/2012  19 comments
Multiplo, a four person startup, sought venture funds via Kickstarter to create and manufacture kits for anyone interested in robotics.
Comment:Re: Bad timing - Jon Titus-10/9/2012
Comment:Re: Impressive - Jon Titus-10/8/2012
Gesture Sensors Could Help Mechatronics Engineers
Mechatronics Zone 
9/20/2012  17 comments
A recent announcement from a company specializing in sensors used for gesture detection sparked thoughts about using this type of control in mechatronic devices.
Motor Kits Let BLDC Designs Roll
Mechatronics Zone 
9/14/2012  4 comments
If your design plans include a brushless DC motor, contributing technical editor Jon Titus recommends starting with a motor drive dev kit.
An Anti-Alias Filter Review
Mechatronics Zone 
9/12/2012  9 comments
This column describes a filter-selection “gotcha,” and includes references to anti-alias-filter information.
Handbook Can Help Mechatronics Engineers
Mechatronics Zone 
9/5/2012  7 comments
Contributing technical editor Jon Titus found a free copy of the Electrical Engineering Pocket Handbook, published by the Electrical Apparatus Service Association, particularly useful.


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