Archive For: Relays & Timers

What a Drag!

What a Drag!

CO2 powered drag strip teaches students the science of speed. John Harpell’s 9th grade class at Moira Secondary School in Belleville, Ontario, Canada has built and automated a model racecar track for CO2 powered “dragsters” using various components from AutomationDirect. A CO2 powered dragster is a small lightweight vehicle fitted with a CO2 cartridge; think “pine-wood-derby on ... Read More
 
Electromechanical Relays Versus Solid-State: Each Has Its Place

Electromechanical Relays Versus Solid-State: Each Has Its Place

Since the introduction of solid-state relays some decades ago, the debate over which is better, solidstate relays (SSRs) or electromechanical relays (EMRs), has gone on. The general answer is neither, as each one has good and bad points. But in terms of specific application requirements, clear winners emerge. The Argument for Solid-State Relays When used ... Read More