Outline the structural composition of the multimeter
The multimeter is composed of three main parts: meter head, measuring circuit and changeover switch. The multimeter is the most basic tool in the field of electronic testing, and it is also a widely used testing instrument. Multimeters are also called multimeters, three-purpose meters (A, V, Ω are current, voltage, and resistance), multimeters, and multimeters. Multimeters are divided into pointer multimeters and digital multimeters. There is also a multimeter with oscilloscope function. The oscilloscope multimeter is a multi-functional, multi-range measuring instrument. General multimeters can measure DC current, DC voltage, AC voltage, resistance and audio level, etc., and some can also measure AC current, capacitance, inductance, temperature and some parameters of semiconductors (diodes, triodes). Digital multimeters have become mainstream and have replaced analog meters. Compared with analog instruments, digital instruments have high sensitivity, high precision, clear display, strong overload capacity, easy to carry, and more convenient and simple to use.
