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Electronic Test Equipment

 
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Electronic test equipment
 
 
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Electronic test equipment (sometimes called "testgear") is used to create signals and capture responses from electronic Devices Under Test (DUTs). In this way, the proper operation of the DUT can be proven or faults in the device can be traced and repaired.






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What piece of test and measurement equipment is used to make resistance and continuity checks?








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Oscilloscope2
Electronic test equipment (sometimes called "testgear") is used to create signals and capture responses from electronic Devices Under Test (DUTs). In this way, the proper operation of the DUT can be proven or faults in the device can be traced and repaired. Use of electronic test equipment is essential to any serious work on electronics systems.

Practical electronics
Electronics

Electronics refers to the flow of charge through nonmetal electrical conductor , whereas electrical refers to the flow of charge through metal electrical conductor....
 engineering and assembly requires the use of many different kinds of electronic test equipment ranging from the very simple and inexpensive (such as a test light
Test light

A test light, test lamp, or mains tester is a very simple piece of electronic test equipment used to determine the presence or absence of an Electricity voltage in a piece of equipment under test....
 consisting of just a light bulb and a test lead) to extremely complex and sophisticated such as Automatic Test Equipment
Automatic test equipment

Automatic/automated test equipment is any automated device that is used to quickly test printed circuit boards, integrated circuits, or any other related electronic components or modules....
.

Generally, more advanced test gear is necessary when developing circuits and systems than is needed when doing production testing or when troubleshooting
Troubleshooting

Troubleshooting is a form of problem solving most often applied to repair of failed products or processes. It is a logical, systematic search for the source of a problem so that it can be solved, and so the product or process can be made operational again....
 existing production units in the field.

Types of test equipment


Basic equipment

Voltmeter
The following items are used for basic measurement of voltages, currents, and components in the circuit under test.
  • Voltmeter
    Voltmeter

    A voltmeter is an instrument used for measuring the electrical potential difference between two points in an electric circuit. Analog voltmeters move a pointer across a scale in proportion to the voltage of the circuit; digital voltmeters give a numerical display of voltage by use of an analog to digital converter....
     (Measures voltage
    Voltage

    Electrical tension is the potential difference between two points of an electrical or electronic circuit, expressed in volts. It is the measurement of the potential for an electric field to cause an electric current in an electrical conductor....
    )
  • Ohmmeter
    Ohmmeter

    An ohmmeter is an electricity measuring instrument that measures electrical resistance, the opposition to an electric current. Micro-ohmmeters make low resistance measurements....
     (Measures resistance
    Electrical resistance

    The electrical resistance of an object is a measure of its opposition to the passage of a steady electrical current. An object of uniform cross section will have a resistance proportional to its length and inversely proportional to its cross-sectional area, and proportional to the resistivity of the material....
    )
  • Ammeter
    Ammeter

    An ammeter is a measuring instrument used to measure the electric current in a Electrical circuit. Electric currents are measured in amperes , hence the name....
    , e.g. Galvanometer
    Galvanometer

    A galvanometer is a type of ammeter: an instrument for detecting and measuring electric current. It is an Analogue electronics electromechanical transducer that produces a rotary deflection, through a limited arc, in response to electric current flowing through its coil....
     or Milliameter (Measures current)
  • Multimeter
    Multimeter

    A multimeter or a multitester, also known as a volt/ohm meter or VOM, is an Electronics measuring instrument that combines several functions in one unit....
     e.g., VOM (Volt-Ohm-Milliameter) or DVM (Digital "Volt" Meter) (Measures all of the above)


The following are used for stimulus of the circuit under test:
  • Power supplies
    Power supply

    Power supply is a reference to a source of electrical power. A device or system that supplies electrical or other types of energy to an output External electric load or group of loads is called a power supply unit or PSU....
  • Signal generator
    Signal generator

    A signal generator, also known variously as a test signal generator, function generator, tone generator, arbitrary waveform generator, digital pattern generator or frequency generator is an Electronics device that generates repeating or non-repeating electronic signals ....
  • Digital pattern generator
    Digital pattern generator

    A digital pattern generator is a piece of electronic test equipment or software used to generate digital electronics stimuli. Digital electronics stimuli are a specific kind of electrical waveform varying between two conventional voltages that correspond to two logic states ....
  • Pulse generator
    Pulse generator

    A pulse generator can either be an internal circuit or a piece of electronic test equipment used to generate Pulse s.Simple pulse generators usually allow control of the pulse repetition rate , pulse width, delay with respect to an internal or external trigger and the high- and low-voltage levels of the pulses....
Digital Multimeter Aka
The following analyze the response of the circuit under test:
  • Oscilloscope
    Oscilloscope

    An oscilloscope is a type of electronic test instrument that allows signal voltages to be viewed, usually as a two-dimensional graph of one or more electrical potential differences plotted as a function of time or of some other voltage ....
     (Measures all of the above as they change over time)
  • Frequency counter
    Frequency counter

    A frequency counter is an electronics measuring instrument, or Electronic component of one, that is used for measuring frequency. Frequency is defined as the number of events of a particular sort occurring in a set period of time....
     (Measures frequency
    Frequency

    Frequency is the number of occurrences of a repeating event per unit time. It is also referred to as temporal frequency.The period is the duration of one cycle in a repeating event, so the period is the reciprocal of the frequency....
    )


And connecting it all together:
  • Test probe
    Test probe

    A test probe is a physical device used to connect electronic test equipment to the device under test . They range from very simple, rugged devices to complex probes that are sophisticated, expensive, and fragile....
    s


Advanced or less commonly used equipment

Meters

  • Solenoid voltmeter
    Solenoid voltmeter

    A solenoid voltmeter is a specific type of voltmeter used by electricians in the testing of electrical power circuits.Wiggy is the registered trademark for a common solenoid voltmeter used in North America and manufactured by Square D, derived from a device patented in 1918....
     (Wiggy
    Solenoid voltmeter

    A solenoid voltmeter is a specific type of voltmeter used by electricians in the testing of electrical power circuits.Wiggy is the registered trademark for a common solenoid voltmeter used in North America and manufactured by Square D, derived from a device patented in 1918....
    )
  • Clamp meter (current transducer)
  • Wheatstone bridge
    Wheatstone bridge

    A Wheatstone bridge is a measuring instrument invented by Samuel Hunter Christie in 1833 and improved and popularized by Sir Charles Wheatstone in 1843....
     (Precisely measures resistance
    Electrical resistance

    The electrical resistance of an object is a measure of its opposition to the passage of a steady electrical current. An object of uniform cross section will have a resistance proportional to its length and inversely proportional to its cross-sectional area, and proportional to the resistivity of the material....
    )
  • Capacitance meter
    Capacitance meter

    A capacitance meter is a piece of electronic test equipment used to measure capacitors. Depending on the sophistication of the meter, it may simply display the capacitance or it may also measure a number of other parameters such as Leakage#Electronics, equivalent series resistance, and inductance....
     (Measures capacitance
    Capacitance

    In electromagnetism and electronics, capacitance is the ability of a body to hold an electrical charge.Capacitance is also a measure of the amount of electric charge stored for a given electric potential....
    )
  • LCR meter
    LCR meter

    A LCR meter is a piece of electronic test equipment used to measure, among other things, the electrical impedance of a electrical component.Usually the device under test is subjected to an alternating current voltage source, then the voltage over, and the electrical current through the DUT are measured....
     (Measures inductance
    Inductance

    Inductance is the property in an electrical circuit where a change in the current flowing through that circuit induces an Electromotive force that opposes the change in current ....
    , capacitance
    Capacitance

    In electromagnetism and electronics, capacitance is the ability of a body to hold an electrical charge.Capacitance is also a measure of the amount of electric charge stored for a given electric potential....
    , resistance
    Electrical resistance

    The electrical resistance of an object is a measure of its opposition to the passage of a steady electrical current. An object of uniform cross section will have a resistance proportional to its length and inversely proportional to its cross-sectional area, and proportional to the resistivity of the material....
     and combinations thereof)
  • EMF Meter
    EMF Meter

    EMF meter, Electromagnetic field meter, is a scientific instrument for measuring electromagnetic radiation.There are many different types of EMF meter, but the two largest categories are single axis and tri-axis....
     (Measures Electric and Magnetic Fields)
  • Electrometer
    Electrometer

    An electrometer is an electricity instrument for measuring electric charge or electrical potential difference. There are many different types, ranging from historical hand-made mechanical instruments to high-precision electronic devices....
     (Measures charge
    Electric charge

    Electric charge is a fundamental conserved property of some subatomic particles, which determines their electromagnetic interaction. Electrically charged matter is influenced by, and produces, electromagnetic fields....
    )


Probes
Tongtester
  • RF probe
    RF probe

    An RF probe, sometimes called an RF detector is a simple test device to detect radio frequency oscillation in an Electronic circuit. This device will work as a RF rectifier and give a pulsed Direct current volt....
  • Signal tracer
    Signal tracer

    A signal tracer is a piece of electronic test equipment used to troubleshoot radio and other Electronics circuitry.Usually a very simple device, it normally provides an amplifier, and a loudspeaker, often battery-powered and packaged into a small, hand-held test probe....


Analyzers
  • Logic analyzer
    Logic analyzer

    A logic analyzer is an electronic instrument that displays signals in a digital circuit that are too fast to be observed and presents it to a user so that the user can more easily check correct operation of the digital system....
     (Tests digital circuit
    Digital circuit

    Digital electronics are electronics systems that use digital signals. Digital electronics are representations of Boolean algebra and are used in computers, mobile phones, and other consumer products....
    s)
  • Spectrum analyzer
    Spectrum analyzer

    A spectrum analyzer or spectral analyzer is a device used to examine the spectral composition of some electricity, acoustics, or optics waveform....
     (SA) (Measures spectral energy of signals)
  • Vector signal analyzer
    Vector signal analyzer

    The vector signal analyzer is a tool that can perform many of the same measurement and characterization tasks that the spectrum analyzer can, but it can also perform many more digital demodulation functions....
     (VSA) (Like the SA but it can also perform many more useful digital demodulation functions)
  • Time-domain reflectometer
    Time-domain reflectometer

    A time-domain reflectometer is an electronic instrument used to characterize and locate faults in metallic cables . It can also be used to locate discontinuities in a connector, printed circuit board , or any other electrical path....
     for testing integrity of long cables


Signal-generating devices
Leader Lsg 15 Signal Generator
* Signal generator
Signal generator

A signal generator, also known variously as a test signal generator, function generator, tone generator, arbitrary waveform generator, digital pattern generator or frequency generator is an Electronics device that generates repeating or non-repeating electronic signals ....
  • Frequency synthesiser
  • Function generator
    Function generator

    A function generator is a piece of electronic test equipment or software used to generate electrical waveforms. These waveforms can be either repetitive, or single-shot in which case some kind of triggering source is required ....
  • Digital pattern generator
    Digital pattern generator

    A digital pattern generator is a piece of electronic test equipment or software used to generate digital electronics stimuli. Digital electronics stimuli are a specific kind of electrical waveform varying between two conventional voltages that correspond to two logic states ....
  • Pulse generator
    Pulse generator

    A pulse generator can either be an internal circuit or a piece of electronic test equipment used to generate Pulse s.Simple pulse generators usually allow control of the pulse repetition rate , pulse width, delay with respect to an internal or external trigger and the high- and low-voltage levels of the pulses....
  • Signal injector


Miscellaneous devices

  • Continuity tester
    Continuity tester

    File:Cable-tester-0a.jpgA continuity tester is an item of Electronic test equipment used to determine if an electrical path can be established between two points; that is if an electrical circuit can be made....
  • Cable tester
    Cable tester

    File:Cable-tester-and-analyzer-0c.jpgA cable tester is an electronic device used to verify the electrical connections in a cable or other wired assembly....
  • Hipot tester
  • Network analyzer
    Network analyzer

    Network analyzer may mean:* A packet analyzer, used on a computer data network* An Network analyzer , a category of electronic test equipment...
     (used to characterize components or complete computer networks
    Computer networking

    Computer networking is the engineering discipline concerned with communication between computer systems or Peripheral devices. Networking, routers, routing protocols, and networking over the public Internet have their specifications defined in documents called Request for Commentss....
    )
  • Test light
    Test light

    A test light, test lamp, or mains tester is a very simple piece of electronic test equipment used to determine the presence or absence of an Electricity voltage in a piece of equipment under test....
  • Transistor tester
    Transistor tester

    Transistor testers are instruments for testing the electrical behavior of transistors and solid-state diodes....
  • The Energy Detective
    The Energy Detective

    The Energy Detective, also known as TED, is an home energy monitor that promotes energy conservation by making residential consumers aware of how much electrical energy is being used in their homes....