Engineering Essentials



How to Specify Fiber-Optic Sensors

Fiber-optic sensors work well in tight spots and in applications with a high degree of electrical noise, but care must be taken when specifying these critical components.

A Quick Way to Measuring the Hardness of Foams

Measuring the “hardness” of soft, spongy elastomers—foams—is an inexact science.
Machinedesign 7629 Promo 2

Closing the Gender Gap Through STEM

Various methods can be used to smash age-old stereotypes and interest young girls in engineering, showing how they can ultimately make it a career.

Energy-Saving Electrical Pumps Satisfy New DoE Standards

Using a variable-speed drive could reduce up to 50% of a pump’s energy consumption.

Reap the Benefits of Modern-Day Powder Metallurgy

Advances in PM over the years have steadily expanded its market, and now the technology is poised to start taking over other parts-manufacturing processes.


Md Ebook Robotics 630x330

Machine Design Library - Free E-book

Your guide to making informed decisions when adding robotics to your manufacturing operations. DOWNLOAD NOW!
Machinedesign 7455 Sand Casting Mold 1promo 0

What’s the Difference Between Investment Casting and Sand Casting?

Though they have been refined through the ages, significant differences exist between the two methods used to make metal parts.
Machinedesign 7451 Carthinkstockphotos 114288673 0

Microalloying Strengthens Steel

Adding small amount of alloying elements can dramatically boost the strength and hardness of carbon steels.
Machinedesign 7449 0416lvdtpromo 0

LVDT Linear Position Sensors and IP Ratings

Most LDVT components are protected against the environment to some degree. But there are applications where more protection is needed.
Machinedesign 7448 Graphic 1promo 0

A Short History of Membrane Switches

Enhancements to membrane switches over the years have turned them into indispensable subsystems in technical applications across many industries.