Comparison and Selection of Digital and Analog Multimeters
1. Working principle:
Digital multimeter: It uses digital measurement, converts the measurement signal into a digital signal through an analog-to-digital converter, and then displays the measurement result on the display screen.
Analog multimeter: using analog measurement, directly indicating the measurement results through pointers or mechanical indicators.
2. Measurement accuracy and resolution:
Digital multimeter: With high measurement accuracy and resolution, it can provide more significant numbers. Its reading is accurate, stable, and not easily affected by human error.
Simulated multimeter: The measurement accuracy and resolution are relatively low, and it is greatly affected by human error.
3. Measurement function and range:
Digital multimeter: With rich functions, it can measure various parameters such as resistance, voltage, current, capacitance, inductance, etc. Its measurement range is wide and can meet the needs of different application scenarios.
Analog multimeter: has relatively few functions and mainly measures resistance and voltage. Its measurement range is relatively small and may not meet the needs of certain application scenarios.
4. Convenience of operation:
Digital multimeter: easy to operate and easy to read. Its display screen can intuitively show the measurement results, making it convenient for users to quickly understand the measurement results.
Simulated multimeter: The operation is relatively cumbersome and requires human eyes to read and interpret the pointer position. Its indicator may take some time to adapt in order to accurately read the measurement results.
5. Price:
Digital multimeter: usually priced higher, but with higher performance and accuracy. Suitable for users who require high measurement accuracy or need multiple measurement functions.
Simulated multimeter: relatively low price, but relatively low performance and accuracy. Suitable for users who do not require high measurement accuracy or only need to measure resistance and voltage.
