What is a digital multimeter?

February 14, 2025common problems 4870

A multimeter is an instrument that can measure a wide range of parameters, such as alternating (AC) or direct current (DC) voltage, AC or DC current, resistance, temperature, capacitance, and so on. Modern digital multimeters use digital and logic technology to become smaller and smaller with more and more built-in functions. By introducing digital technology, thedigital multimeterThe meter can provide graphical display, data logging and signal digitization, and programming functions, as well as communication with external devices.

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Clamp Meter Usage
February 14, 2025 506
If you want to measure current, voltage, etc., you need specialized measuring equipment. Analog and digital multimeters are usually used to measure current, but the circuit must be cut off and the multimeter and the circuit connected in series in order to make the measurement. However, it is not uncommon that it is not possible to disconnect the circuit in some cases. In addition, there is a danger of electric shock when the circuit is disconnected. In this case the clamp meter...
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How does a spectrum analyzer work?
February 14, 2025 575
A signal that looks very complex in the time domain behaves quite differently in the frequency domain. Time domain measurements show an impure sine wave. Without frequency domain measurements, it is still impossible to know the source and frequency of the second harmonic. Spectral analysis can show the spectral components individually, thus revealing the source of the interference. The information provided in the time domain (e.g., the signal pulse on...
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Is it possible to generate DC power using an AC power supply?
February 14, 2025 577
Can. Many AC power sources can produce DC directly, or by superimposing a DC bias on the AC waveform. ,
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What are network analyzers used for?
February 14, 2025 417
Network analyzers perform component characterization tests. A network analyzer provides a calibrated excitation signal to an RF network or device under test (DUT) and measures the vector response at frequency with phase and amplitude information. A VNA provides transmission (transmission coefficient, insertion loss, gain), reflection (reflection coefficient, VSWR, return loss), and impedance measurements, as well as s...
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What is a digital multimeter?

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Clamp Meter Usage

How does a spectrum analyzer work?

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What are network analyzers used for?

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