Scientific studies, and news coverage about them, often declare that a study “controlled” for certain variables. For example, ...

Why get up close and personal with a resistor when you can tweak it from a distance? Remote variable resistors make analog circuit control easier, neater, and a lot more fun. Well, we are about to ...

This application note describes a closed loop, computer- controlled, variable attenuator for the control of output power from a tunable laser. It is based on the combination of a 1/2 wave-plate and a ...

Rising power costs and load increases have elevated energy monitoring and analysis on plant agendas, but consumption only becomes controllable once it is reliably measured per unit produced and ...

In programming, a variable that keeps track of the number of iterations of a process. Its value is incremented or decremented with each iteration, and it is compared to a constant or other variable to ...