What kind of measurement device is a moving-vane meter equivalent to?

A moving-vane meter is an analog instrument primarily used to measure electrical quantities such as voltage or current. Its design includes a moving component (the vane) that reacts to the strength of the electrical signal, providing a visual representation of the measurement on a scale. This characteristic directly aligns it with the functionality of an analog voltmeter, which also provides a visual gauge of voltage levels through similar mechanics.

In contrast, a digital multimeter provides numerical readings and utilizes different internal technology, making it distinct from the analog nature of a moving-vane meter. A thermocouple measures temperature differences rather than electrical quantities, and an oscilloscope displays electronic signals in a waveform format rather than using a moving component for measurement. Hence, the nature of the moving-vane meter's operation and its application in measuring electrical quantities substantiate its equivalence to an analog voltmeter.