What Is a Resistance Decade Box?
A resistance decade box is a device capable of continuously varying resistance values.
The basic operating principle involves connecting a power source such as a voltage source or a current source to the input terminals and adjusting the resistance value by operating switches, thereby obtaining the desired resistance value from the output terminals. It finds primary applications in measurement equipment, control systems, experimental setups, etc., and is widely used for measuring voltage, current, resistance, controlling power sources, LEDs, and more. The resistance decade box plays a crucial role in experiments, validations of electronic circuits, and the development of control circuits.
Its structure consists of resistors, switches, and output terminals, with resistance values adjusted by operating switches. Noteworthy features include high precision in resistance values despite being small and lightweight, as well as the ability to continuously vary resistance values.