Editing Electronic test equipment (section)

==Types of test equipment==
===Basic equipment===
[[Image:Voltmeter.jpg|thumb|right|[[Keysight]] commercial digital voltmeter checking a prototype]]
The following items are used for basic measurement of voltages, currents, and components in the circuit under test.
* [[Voltmeter]] (Measures [[voltage]])
* [[Ohmmeter]] (Measures [[Electrical resistance|resistance]])
* [[Ammeter]], e.g. [[Galvanometer]] or Milliammeter (Measures [[current (electricity)|current]])
* [[Multimeter]] e.g., VOM (Volt-Ohm-Milliammeter) or DMM (Digital Multimeter) (Measures all of the above)
* [[LCR meter]] - inductance (L), capacitance (C) and resistance (R) meter (measure LCR values)

The following are used for stimulus of the circuit under test:
* [[Power supply|Power supplies]]
* [[Signal generator]]
* [[Digital pattern generator]]
* [[Pulse generator]]
[[Image:Digital Multimeter Aka.jpg|thumb|right|200px|Voltcraft ''M-3850'' portable [[multimeter]]]]
The following analyze the response of the circuit under test:
* [[Oscilloscope]] (Displays voltage as it changes over time)
* [[Frequency counter]] (Measures [[frequency]])

And connecting it all together:
* [[Test probe]]s

===Advanced or less commonly used equipment===
'''Meters'''

* [[Solenoid voltmeter]] (''Wiggy'')
* [[Clamp meter]] (current transducer)
* [[Wheatstone bridge]] (Precisely measures [[electrical resistance|resistance]])
* [[Capacitance meter]] (Measures [[capacitance]])
* [[LCR meter]] (Measures [[inductance]], [[capacitance]], [[electrical resistance|resistance]] and combinations thereof)
* [[EMF Meter]] (Measures Electric and Magnetic Fields)
* [[Electrometer]] (Measures voltages, sometimes even tiny ones, via a [[electric charge|charge]] effect)

====Probes====
[[Image:tongtester.jpg|thumb|right|A multimeter with a built in clamp facility. Pushing the large button at the bottom opens the lower jaw of the clamp, allowing the clamp to be placed around a conductor (wire). Depending on sensor, some can measure both AC and DC current.]]

* [[RF probe]]
* [[Signal tracer]]

====Analyzers====
* [[Logic analyzer]] (Tests [[digital circuit]]s)
* [[Spectrum analyzer]] (SA) (Measures spectral energy of signals)
* [[Protocol analyzer]] (Tests functionality, performance and conformance of protocols)
* [[Vector signal analyzer]] (VSA) (Like the SA but it can also perform many more useful digital demodulation functions)
* [[Time-domain reflectometer]] (Tests integrity of long cables)
* [[Semiconductor curve tracer]]

====Signal-generating devices====
[[Image:Leader LSG-15 signal generator.jpg|thumb|right|200px|Leader Instruments LSG-15 signal generator.]]
* [[Signal generator]] usually distinguished by frequency range (e.g., audio or radio frequencies) or waveform type (e.g., sine, square, sawtooth, ramp, sweep, modulated, ...)
* [[Frequency synthesiser]]
* [[Function generator]]
* [[Digital pattern generator]]
* [[Pulse generator]]
* [[Signal injector]]<ref>{{cite web |url=https://www.electroschematics.com/9455/signal-injector-circuit/ |title=Signal Injector Circuit |access-date=2018-06-03}}</ref>
[[File:Cable_tester.jpg|thumb|Cable tester]]

===Miscellaneous devices===
* [[Boxcar averager]]
* [[Continuity tester]]
* [[Cable tester]]
* [[Hipot tester]]
* [[Network analyzer (electrical)|Network analyzer]] (used to characterize an electrical network of components)
* [[Test light]]
* [[Transistor tester]]
* [[Tube tester]]
* [[Source measure unit]] (SMU), a test tool capable to supply power and measure voltage or current at the same time.