Basic measurement instruments are essential tools used to measure fundamental physical quantities such as voltage, current, and resistance. These instruments play a critical role in scientific research, engineering validation, and routine maintenance of electronic systems. Common types of basic measurement instruments include:

1. Multimeter：Measures DC/AC voltage, current, and resistance. Advanced models also support capacitance, inductance, and frequency measurements.
2. Oscilloscope：Captures and displays electrical signals over time, enabling analysis of amplitude, frequency, phase, and waveform characteristics. High-bandwidth models are available for high-frequency signal analysis.
3. Frequency Counter：Accurately measures the frequency of electronic signals, commonly used in RF and communication systems.
4. Signal Generator：Produces various signal types (sine, square, arbitrary waveforms) for testing, simulation, and calibration of electronic circuits and systems.
5. LCR meter：Measures inductance (L), capacitance (C), and resistance (R) of passive components, essential for component verification and PCB-level testing.

Keywords: Voltage & Current Measurement, Inductance, Capacitance, Resistance Testing, PCB Testing, Signal Generators, Arbitrary Waveform Generators, High-Frequency Oscilloscopes, LCR Meters​