​ How to measure voltage

Measuring voltage is an important operation in electronic experiments. In order to accurately measure the voltage, we usually solve the problem by using a voltmeter or digital multimeter.

When using a digital multimeter to measure voltage, you first need to set the function of the multimeter to voltage measurement mode. Then, connect the positive and negative poles of the multimeter to the positive and negative poles of the circuit to be tested to ensure that the connection is correct. At this time, the value displayed on the multimeter is the voltage value of the circuit to be measured.

When measuring voltage, the following points should be paid attention to: the 1 is to ensure that the function of the multimeter is set correctly and avoid setting the voltage measurement mode to other modes by mistake; The 2 is to ensure the correct connection and avoid measurement errors caused by positive and negative connection. The 3 is to select the appropriate range to avoid damage to the multimeter due to too small range or inaccurate measurement due to too large range.

Usually, the traditional method of connecting the circuit under test often relies on a multimeter, which requires manual contact or stripping to connect the measuring point, which affects the convenience of operation to a certain extent. Whether it is used in conjunction with a multimeter or with a probe, the measuring probe can significantly improve the convenience of measurement.