Basic functions of a multimeter
The multimeter can not only be used to measure the resistance of the object to be measured, but also the AC and DC voltage can also be used to measure the DC voltage. Even some multimeters can measure the main parameters of transistors and the capacitance of capacitors. Fully mastering the use of a multimeter is one of the most basic skills in electronic technology. Common multimeters include analog multimeters and digital multimeters. The pointer type multi-meter is a multi-function measuring instrument with the head as the core component, and the measured value is read by the pointer of the head. The measured value of the digital multimeter is directly displayed in the digital form by the LCD screen, which is easy to read, and some also have a voice prompt function. A multimeter is a meter that shares a meter head and integrates a voltmeter, an ammeter and an ohmmeter.
The DC current range of the multimeter is a multi-range DC voltmeter. The meter head is connected in parallel with a closed-circuit voltage dividing resistor to expand its voltage range. The DC voltage range of the multimeter is a multi-range DC voltmeter. The voltage range can be expanded by connecting a voltage divider resistor in series with the meter head. Different voltage divider resistors have different corresponding ranges. The head of the multimeter is a magnetoelectric measurement mechanism, which can only pass DC, and use a diode to convert the AC into DC, so as to realize the measurement of AC.
