noun
valuator device
A computing term for a device that inputs real-number values, such as a dial, slider, or analog input device.
このシミュレーションでは、実数値入力装置を使ってパラメータを調整します。
In this simulation, we adjust parameters using a valuator device.
Compound of 実数値 (real number value) + 入力 (input) + 装置 (device). A technical term likely coined in computing contexts.