Electronic Test Equipment
Types of test equipment
Types of test equipment
Basic equipment
Agilent 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 resistance)
Ammeter, e.g. Galvanometer or Milliameter (Measures current)
Multimeter e.g., VOM (Volt-Ohm-Milliameter) or DMM (Digital Multimeter) (Measures all of the above)
The following are used for stimulus of the circuit under test:
Power supplies
Signal generator
Digital pattern generator
Pulse generator
Howard piA digital multimeter
The following analyze the response of the circuit under test:
Oscilloscope (Measures all of the above as they change over time)
Frequency counter (Measures frequency)
And connecting it all together:
Test probes
Advanced or less commonly used equipment
Meters
Solenoid voltmeter (Wiggy)
Clamp meter (current transducer)
Wheatstone bridge (Precisely measures resistance)
Capacitance meter (Measures capacitance)
LCR meter (Measures inductance, capacitance, resistance and combinations thereof)
EMF Meter (Measures Electric and Magnetic Fields)
Electrometer (Measures charge)
Probes
A multimeter with a built in clampfacility. Pushing the large button at the bottom opens the lower jaw of the clamp, allowing the clamp to be placed around a conductor (wire).
RF probe
Signal tracer
Analyzers
Logic analyzer (Tests digital circuits)
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)
Signal-generating devices
Leader Instruments LSG-15 signal generator.
Signal generator
Frequency synthesiser
Function generator
Digital pattern generator
Pulse generator
Signal injector
Miscellaneous devices
Continuity tester
Cable tester
Hipot tester
Network analyzer (used to characterize components or complete computer networks)
Test light
Transistor tester
Tube tester
The Energy Detective
Electrical tester pen
Receptacle tester
See also
Automatic Test Equipment
External links
LXI Consortium website
NIST 1588 Standard web site
http://www.quantumcomposers.com
Categories: Electronic test equipmentHidden categories: Articles to be merged from February 2010 | All articles to be merged
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