Below is the list of measuring instruments used in electrical and electronic work.

Name | Purpose |
---|---|

Ammeter (Ampermeter) | Measures current |

Capacitance meter | Measures the capacitance component |

Current clamp | Measures current without physical connection |

Curve tracer | Applies swept signals to a device and allows display of the response |

Cos Phi Meter | Measures the power factor |

Distortionmeter | Measures the distortion added to a circuit |

Electricity meter | Measures the amount of energy dissipated |

ESR meter | Measures the equivalent series resistance of capacitors |

Frequency counter | Measures the frequency of the current |

Leakage tester | Measures leakage across the plates of a capacitor |

LCR meter | Measures the inductance, capacitance and resistance of a component |

Megger tester | Measures Resistance of an Winding of Motor or Generator And Measures Earthing's Resistance |

Microwave power meter | Measures power at microwave frequencies |

Multimeter | General purpose instrument measures voltage, current and resistance (and sometimes other quantities as well) |

Network analyzer | Measures network parameters |

Ohmmeter | Measures the resistance of a component |

Oscilloscope | Displays waveform of a signal, allows measurement of frequency, timing, peak excursion, offset, ... |

Psophometer | Measures AF signal level and noise |

Q meter | Measures Q factor of the RF circuits |

Tachometer | Measures speed of motors |

Signal analyzer | Measures both the amplitude and the modulation of a RF signal |

Signal generator | Generates signals for testing purposes |

Spectrum analyser | Displays frequency spectrum |

Sweep generator | Creates constant-amplitude variable frequency sine waves to test frequency response |

Transistor tester | Tests transistors |

Tube tester | Tests vacuum tubes (triode, tetrode etc.) |

Wattmeter | Measures power in a circuit |

Vectorscope | Displays the phase of the colors in color TV |

Video signal generator | Generates video signal for testing purposes |

Voltmeter | Measures the potential difference between two points in a circuit. (Includes: DVM and VTVM) |

VU meter | Measures the level of AF signals in Volume units |

CRO(Cathode Ray Oscilloscope) | Check transistor |