analogmõõtur

An analogmõõtur, or analog meter, is an instrument used to measure and display electrical quantities. Unlike digital meters, which present numerical values on a screen, analog meters use a moving pointer or needle that traverses a calibrated scale to indicate the measured value. This needle's movement is typically driven by an electromagnetic mechanism, such as a d'Arsonval movement, where a current-carrying coil in a magnetic field experiences a torque proportional to the current.

Common analog meters include voltmeters, ammeters, and ohmmeters, each designed to measure voltage, current, and resistance, respectively. They are characterized by their visual representation of a value, allowing users to observe trends and fluctuations in real-time. The scale on an analog meter is marked with units and divisions, and the position of the needle indicates the magnitude of the measured quantity. The precision of an analog meter is determined by the fineness of the scale divisions and the observer's ability to interpolate between them. While digital meters have become more prevalent due to their higher precision and ease of reading, analog meters are still valued for their ability to provide a continuous display of changing values and for their robustness in certain environments. They are often found in older electronic equipment, automotive dashboards, and in educational settings for demonstrating fundamental electrical principles.