How do Analog Meters work? Analog Meter Basics and Movements by Hoyt Electrical Instrument Works

Jason from Hoyt Electrical Instrument Works introduces the basics of analog meters, explaining that the movement of a pointer over a calibrated range indicates the quantity being measured. He shows a scale from 0 to 15 volts as an example.

The video explains that a moving coil inside a magnet is responsible for the pointer's movement. When current flows through the coil, an electromagnetic reaction occurs between the coil and the magnet, causing the pointer to move. A spring returns the pointer to zero when the current is removed.

A demonstration using a 9-volt battery illustrates how the current flowing through the coil interacts with the magnet, causing the pointer to move, and how the spring brings it back to its original position.

The video touches on the science of calibrating meters to ensure accurate readings. It mentions different movement styles like 'pivot and jewel' (typically 2% accuracy) and 'external magnet' (5% accuracy), and briefly introduces 'taut band' movements.

The cover of the meter allows for zeroing the instrument. For more detailed information on different movements offered by Hoyt, viewers are directed to their website and to contact them with any technical questions.