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Clamp gauges and multimeters are two common measuring instruments in the field of electronic technology, which have wide applications in measuring voltage, current, resistance, and other aspects. Although both are measuring instruments, there are some differences in their design and use

A clamp meter, as the name suggests, has a shape similar to a clamp and can be easily clamped in the circuit being tested to measure current. Its working principle is to measure the magnitude of the current through the magnetic field generated by induced current, and display the results on the instrument. The clamp watch has the characteristics of being compact and portable, making it very suitable for use in narrow spaces or situations where fast current measurement is required. Due to its unique design, the measurement can be completed by simply clamping the circuit wires, so there is no need to interrupt the circuit or make direct contact with the circuit, greatly improving the safety of the measurement. In addition, clamp meters also have high measurement accuracy, which can meet the needs of most current measurements

A multimeter is a universal measuring instrument that can measure various electrical parameters such as voltage, current, resistance, capacitance, frequency, etc. The measurement principle of a multimeter is to connect the measured circuit to the measurement port of the multimeter, and measure the various parameters of the circuit through the probes on the measurement port. It usually has a large display screen and multiple measurement ranges, making it convenient for users to choose the appropriate measurement range according to their actual situation. The advantage of a multimeter is its versatility, which allows for the measurement of various parameters in different situations and is very practical

Although clamp gauges and multimeters are common measuring instruments, there are some differences in their range of use and measurement methods. A clamp meter is more suitable for measuring current, while a multimeter is more suitable for measuring parameters such as voltage and resistance. The use of clamp gauges is relatively simple, as it only requires clamping the circuit wires to complete the measurement, which is very convenient and fast. The multimeter needs to be directly connected to the circuit being tested, and users need to choose the corresponding measurement gear according to the measurement situation, and pay attention to the correctness of the wiring. Due to the multiple functions of a multimeter, its measurement principle and operation are relatively complex, requiring users to possess certain professional skills

In addition, there are differences in measurement accuracy between clamp gauges and multimeters. Due to the contact measurement method adopted by the clamp meter, it can directly measure the current, so its measurement accuracy is high. The multimeter adopts a non-contact measurement method, which requires the measurement port to be connected to the tested circuit, and may be affected by external environmental interference, resulting in relatively low measurement accuracy

In summary, clamp gauges and multimeters are common measuring instruments, and there are some differences in their range of use, measurement methods, and measurement accuracy. The clamp shaped watch is compact and portable, suitable for simple and fast current measurement; The multimeter has powerful functions and is suitable for measuring various parameters. When selecting measuring instruments, it is necessary to choose appropriate tools based on specific application scenarios and measurement needs.