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Test & Measurement Equipment & Accessories

The test & measurement equipment & accessories section lists an aggregate of instruments and tools used to test, detect, measure, probe, analyze, calibrate, and monitor data in systems, in the laboratory and other testing environments.
AC & DC Power Monitors (59 Companies)
AC/DC Power Monitors are used to track power interruptions and fluctuations.
AC Ampere Meters (90 Companies)
AC Ampere Meters are appropriate for measuring alternating currents between 0 and 1000 Amperes.
AC Volt Meters (120 Companies)
AC Volt Meter is an instrument used for measuring the electrical potential difference between two points in an alternating circuit.
Acoustics and Vibration Calibrators and Standards are devices that measure wavelengths and frequencies in order to analyze the currents and waves of sounds and vibrations.
AF Analyzers (16 Companies)
Audio frequency (AF) analyzer measures the periodic vibrations of sound that are audible to the human ear, normally ranging from 20 to 20,000 Hz.
AM and/or FM Generators (25 Companies)
AM and FM Generators are electronic devices that are able to generate both AM and FM radio signals for tests and measurement purposes.
Ampere Hour Meters (20 Companies)
An ampere hour meter is a device that monitors and registers current with time. It is most often used to measure battery capacity.
Anechoic Chambers (12 Companies)
An Anechoic Chamber is a shielded room that is designed to elongate waves. They were originally used for measuring acoustic echoes, but have been used recently as shielded environments for RF and microwaves.
Audio Power/Audio Level Meters are devices that monitor and determine the average loudness and loudness spikes of sound waves.
Automatic Test Equipment (ATE) is automated devices used to effectively and quickly test printed circuit boards, ICs, and other electronic applications. They are normally controlled by computers, but can be controlled by switches and relays.
Automatic Test Systems (42 Companies)
Automatic Test Systems are designed to conduct analysis of functional or static parameters to evaluate the degree of performance degradation with a minimum reliance on human intervention.
Bit Rate Testers (15 Companies)
Bit Rate Tester tests the number of binary bits transmitted per unit of time.
Board Test Systems (41 Companies)
Board Test Systems are devices that are designed to perform various tasks and tests on circuit boards and other circuitry equipment.
Burn-In/Aging Ovens (61 Companies)
Aging Ovens test how electronic products age and withstand exposure to light and heat. Burn-in ovens measure the increase in density of an object by exposure. A life test oven tests components of devices under conditions of normal use, accelerated.
Bus Analyzers (15 Companies)
Bus analyzers are computer protocol analysis tools that are often a combination of hardware and software which is designed for use with certain parallel and serial bus architectures. They monitor bus traffic, decode it and display this data.
A Capacitance Meter is a piece of electronic equipment that can measure capacitors. An inductance meter measures an electric circuit to find an opposition to a change in current flow.
Clamp-On Meters (41 Companies)
Clamp-On Meters are ammeters that measure electrical current without the need to disconnect the wiring through which the current is flowing. Used for; probes, self-contained units and built-in parts of specialized devices.
Component Test Systems (53 Companies)
Fully self-contained precision temperature forcing system (PTFS), for component testing, incorporates a built-in air compressor said to eliminate the need for an external air supply at the test location.
Component Testers (64 Companies)
Component Testers can measure values of capacitors, resistors, inductors, diodes or transistors. The measured values of these components can be used for component sorting or trouble shooting.
Automatic Test Systems are systems that are completely controlled by computers. The computers monitor the tests, categorize and collect results and put the tests into motion.
Current Calibrators and Standards analyze and determine the measurements of currents, including wavelengths and frequencies.
Current Monitors (52 Companies)
Current Monitors are able to collect and monitor information about electrical currents. They are often used for observing and testing changes in the currents due to environmental or other factor changes.
DC Ampere Meters (81 Companies)
DC Ampere Meters are appropriate for measuring direct currents between 0 and 1000 Amperes.
DC Volt Meters (119 Companies)
DC Volt Meter is an instrument used for measuring the electrical potential difference between two points in an electric circuit. Moving-coil instruments with a permanent-magnet field respond only to direct current.
Used in measuring time-domain signal parameters; e.g. the amplitude, period, shape and timing of clocks, data bits, pulse characteristics, etc. of input waveforms.
Digital Panel Meters (DPMs) and Analog Panel Meters display input signals and measure currents, voltages, and frequencies. They are equipped with bright, LCD displays. Analog Panel Meters non-linearity display can cause major reader errors
Digital Pattern Generators are devices that create waveforms that vary between two conventional voltages, which stimulate the input of a digital electronic device. PRBS generators stimulate inputs in a more random way by using an algorithmic function.
Distortion & Noise Meters (13 Companies)
Distortion and Noise Meters are electronic devices that are intended to measure the amount of noise or distortion that affects a sound wave.
Electrical Safety Tester is a micro-processor based full function electrical safety analyzer with a built-in 12 lead ECG simulator. It is designed to test the electrical safety of all types of medical equipment.
Electronic Dummy Loads (45 Companies)
Electronic Dummy Loads are devices that are often used in testing or to simulate an electrical load on an electrical circuit and are most often used as substitutes for conventional ohmic load resistors.
Electronic/Variable Loads (27 Companies)
A Variable Electronic Load is designed to provide a load to the outputs of a power supply that is not permanent; it can be removed and changed.
Electrostatic Voltage Meters (electrostatic voltmeters) are electrometers of electrostatic type that are graduated to read directly in volts or kilovolts.
RFI chambers are designed to suppress the electromagnetic wave analogy of echoes. They effectively isolate the acoustic RF noise present in the external environment. The walls of the chamber are designed to absorb and reflect any RFI or EMI wave.
Fast Fourier Transform (FFT) analyzers use an algorithm to measure the frequency domain of a current.
Field Strength Meters detect the electric fields of radio and microwaves from .5 MHz to 3 GHz.
Fluid Flow Meters (57 Companies)
Fluid Flow Meters are devices that allow users to measure the flow of liquid by measuring the amount of liquid that passes by a given point, at which the flow meter is located.
Flux Meters (20 Companies)
A Flux Meter is an instrument used with a test coil for measuring magnetic flux. It consists usually of a moving coil galvanometer in which the torsional control is either negligible or compensated.
Frequency and Time Base Standards and Calibrators are stable oscillators that are used to generate a fundamental frequency with a high degree of accuracy and precision.
Electronic system devices that create any number of frequencies from a single time base or oscillator. used in radio and satellite receivers. They combine frequency multiplication, division and mixing operations to produce the desired output.
Frequency, Time, and Interval Meters (FTIMs) are instruments for measuring the frequency and time in cycles per second of an alternating current or of a radio wave while regulating the interval
Function Generators and Arbitrary Waveform Generators (AWGs) are devices or software that generate electrical waveforms that are repetitive or single-shot. The waveforms can then be implanted into a tested device.
Functional Test Systems (50 Companies)
Functional Test Systems are used to determine whether the device being tested reacts correctly to inputs, qualitatively.
Gauss and Tesla Meters (26 Companies)
A Gauss Meter is an instrument that provides direct readings of magnetic field density (Flux Density) by virtue of the interaction with an internal magnetic field.
Hall Probes (17 Companies)
A semiconductor-based detector which uses the Hall Effect to measure the strength of a magnetic field. Probe contains an indium compound crystal mounted on an aluminum backing plate and encapsulated in the probe head.
High voltage Instrumentation are various meters and measuring devices that are intended to monitor, measure, and analyze different high voltage applications.
High Voltage Probes are the connection points between the test equipment and the object being tested.They can be used in test equipment requiring over 500 Volts of energy.
Hi-Pot Testers (63 Companies)
A Hipot Tester is an electronic device used to verify the electrical insulation in a cable, printed circuit board, electric motor, transformer or other wired assembly. A Hipot tester is used to perform a high potential test.
IEEE-488 GPIB Instruments are short-range digital communication bus devices used to test printed circuit boards, integrated circuits and other modules. They allow up to 15 applications to be simultaneously plugged in with a daisy chaining system.
Impedance Bridges (54 Companies)
Impedance bridges are often used in electrical circuits to effectively maximize transfer of a voltage signal to a load. Most audio connections are bridged. Bridging does not transfer any power.
Impedance Meters (23 Companies)
Impedance Meters measure the opposition in electrical circuits up to 100 Ohms.
Inclinometers (35 Companies)
Inclinometers are instruments that measure slope, elevation, and inclination of objects with respect to gravity. Inclinometers have the ability to measure both incline and decline.
Infrared Thermal References and Blackbody Radiation Source Calibrators measure the amount of blackbody and infrared radiation created when light is emitted and ions excite, breaking bonds.
Instrumentation amplifiers are differential amps that have been outfitted with input buffers, which reduce the need for input impedance matching. They have low DC offsets, drifts and noise; high open-loop gain and a high common mode rejection ratio.
Kilovolt Meters (34 Companies)
Kilovolt Meters are measuring devices that are able to measure high voltage applications. They can also convert measurements into volts or kilovolts.
Liquid Level Monitors (55 Companies)
Liquid Level Monitors are electronic devices that are intended to monitor the level of liquids in remote and shielded containers. They provide signals that are proportional to a level and alert users when the level is reached.
Logic Analyzers (31 Companies)
Electronic instruments that display signals in digital circuits that are too fast to be observed. The analyzer records and presents users with information that they can easily check for correct operation of the digital system.
Low Frequency and Audio Generators are able to generate or simulate lower frequency audio waves for measurement and testing
Magnetic Instrumentation Calibrators and Standards analyze and measure the magnetic fields of various devices and instruments.
Magnetometers (18 Companies)
Magnetometers are instruments used to measure the strength and direction of the magnetic field in the vicinity of the instrument. Often used in space exploration and geographical surveys to find deposits of iron ore and other minerals.
Mass Flow Meters (18 Companies)
Mass Flow Meters are devices that measure how much fluid is flowing through a tube. It does not, however, measure the volume of the fluid passing through the tube; rather, it measures the amount of mass.
Megohm Meters (54 Companies)
Megohm meters are instruments used to measure large electrical resistors.
Modulation Meters (29 Companies)
A modulation meter is an instrument for measuring the degree of modulation (modulation factor) of a carrier wave in which the amplitude, frequency or phase varies in accordance with the intelligence signal being transmitted.
Multifunction Meters (81 Companies)
Multifunction meters measure AC and DC voltages and currents, resistances and continuity. In addition some units can measure temperature, capacitance, and frequency, as well as data logging parameters.
Network Analyzers (32 Companies)
Network analyzers are used to examine the properties of electric networks, especially transmission and reflection properties. They are mostly used at high frequencies and can operate in frequencies from 9 kHz to 10 GHz.
Noise Figure (Noise Factor) and Noise Sources meters measure the ratio of the total noise power at the output of an amplifier to that portion of the total output noise power attributable to the thermal agitation in the resistance of the signal source.
Optical Power Meters measure energy in optical signals, with a calibrator and a display unit. Radiometers detect radiant flux and power in electromagnetic radiation. Spectrometers/Photometers measure properties of laser light in electromagnetic spectrum
Optical Time Domain Reflectometers (OTDRs) and Cable Fault Locators are optoelectronic instruments used to characterize optical fibers. They inject optical pulses into the fibers being tested and extract light and measure the return passes of the light.
Oscilloscope Probes (51 Companies)
Oscilloscope Probes (scope probes) are used oscilloscopes, which do not normally use single wires because of their high frequencies. They use coaxial cables to transmit the signal from the tip of the probe to the oscilloscope, preserving the high frequenc
Phase Meters measure the difference in phase of two alternating currents of electromotive forces. Phase Angle Meters measure the angle expressing phase or phase difference.
Phase & Voltage Analyzers (28 Companies)
Phase and Voltage Analyzers detect, analyze, and determine the phase of a wavelength and the voltage of a current.
Portable Hand-Held Meters (81 Companies)
Portable and Hand-Held Meters are electronic devices that can analyze and make measurements of currents without making contact. They can also be carried around for ease of operation.
Positioning Monitors (39 Companies)
Positioning Monitors are electronic devices that are intended to continually monitor the position (direction and/or location) of an object. The monitor emits a signal and notifies users of any problems and changes in the position of the monitored object.
Power Analyzers (38 Companies)
Power Analyzers are devices that measure the amount of power that a device can produce by measuring its waves and currents.
Power Dummy Loads (35 Companies)
Power Dummy Loads are electronic devices that are able to simulate large power loads in high power applications.
Power Factor Meters (38 Companies)
Power Factor (Phase Factor) Meters measure the ratio of the active power of an alternating current (AC) current circuit.
Power Supply Testers (41 Companies)
Power Supply Testers are tools that are used to test the functionality of a computer, or other device's, power supply. They can check the connectors to the devices, like hard drives, floppy drives, and SATA power connectors.
Pressure Gauges (68 Companies)
Pressure Gauges (vacuum gauges) are used measure the amount of pressure in a vacuum. They can be divided into three categories: ultra-high, high, and low vacuum.
Programmable Dummy Loads (22 Companies)
Programmable Dummy Loads are electronic devices that allow users to simulate loads in tests. The loads can be programmed to the specifications and parameters of the user to make tests most effective.
Programmable Synthesizer Generators are generators that can produce a variety of sounds by combining signals of different frequencies. Users can select and program the generator to produce any number of frequencies.
Pulse Generators (62 Companies)
Used as the primary source for generating a controlled series of electrical pulses or a single pulse. Typical parameters e.g. pulse rate, duty cycle, pulse width, amplitude, rise/fall times, etc. are some of the important controlled output parameters.
PXIbusTest Instruments are electronic devices that are used in test equipment to help give an application a wider frequency bandwidth.
RAM/ROM Tester scans, tests, verifies and determines the Random Access Memory (RAM)/ Read Only Memory (ROM), on the computer, to identify errors or problems due to failing or faulty physical memory system hardware.
Ohmmeters and Resistance Meters are electrical instruments that measure electrical resistance (opposition to an electric current). They are also available in Micro Ohmmeters and Mega Ohmmeters. Voltage is applied to a resistance and then measured.
Resistive Dummy Loads (33 Companies)
Resistive Dummy Loads are developed electronic devices that help users test an object's resistance.
RF Ampere Meters (14 Companies)
RF (radio frequency) Ampere Meters are ammeters that measure the frequencies of radio waves.
RF Analyzers (29 Companies)
Spectrum analyzers primarily measure power, frequency, noise and where RF energy exists. Concerned with characterizing signal component (such as its spurious and harmonic components, modulation, noise, etc.).
RF Generators (53 Companies)
A Radio Frequency (RF) Generator is a device that can create a radio frequency capable of inductively heating metals to high temperatures quickly.
RF Volt Meters (13 Companies)
RF Volt Meter is a specialized voltmeter designed to measure radio frequency (RF) voltage potential difference between two points in an electric circuit.
RF/Microwave Power Meters (49 Companies)
RF/Microwave Power Meters are instruments that measure the electrical power occurring at microwave and radio frequencies. They have wide bandwidths and therefore, not frequency selective.
RF/Microwave Probes (45 Companies)
An RF probe is a simple test circuit to detect radio frequency oscillation in a circuit.
Signal Generators (62 Companies)
Signal Generators are electronic devices that create repeating or non-repeating electronic signals in analog or digital domains. They are most often used in designing, troubleshooting, testing, and repairing electronics.
Spectrum Analyzers (57 Companies)
Primary measuring tool to display amplitude and frequency of signals in the frequency domain. Besides spectral analysis of the input signals, the analyzer can measure power in the carrier and sidebands, modulation characteristics, pulse parameters, etc.
Standing Wave Ratio (SWR) and Slotted Line Meters measure the ratio of the maximum to the minimum signal voltage on a transmission line. Microwave Meters are designed to measure waves less than 10 meters in length.
Sweep Generators (28 Companies)
Sweep Generators apply voltages or currents to the deflection elements in a cathode-ray tube. The deflection of the electron beam is a known function of time, against which other periodic electrical phenomena may be examined, compared and measured.
Tachometers measure the rotational speed (in RPMs) of shafts or disks in motors and in other machines. Stroboscopes make cyclically moving objects appear slow-moving or stationary. Used for the study of rotating, oscillating, and vibrating objects.
Temperature Gauges (47 Companies)
Temperature Gauges are devices that indicate the temperature of a monitored item. Common gauges are bimetallic strips and thermocouples, which create an electronic voltage depending on the temperature.
Temperature Meters and Pyrometers are non-contacting devices that intercept and measure thermal radiation. An optical system focuses the thermal radiation on a detector. The output signal is related to the level of radiation.
Temperature Probes (108 Companies)
Temperature Probes are most often used on voltmeters to make contact measurements of surface temperature. They are normally in the form of thermistors or thermocouples.
Discrete Semiconductor Component Testers can measure values of Small Signal and Power Devices. IGBTs, FETs, High Power Hybrids, Modules, Transistors and Diodes.
Torque, Speed, and Digital Meters measure how quickly an object moves or the number of rotations per minute in an application.
True RMS Ampere Meters (58 Companies)
True RMS Ampere Meters are able to determine the wavelength for currents that are not necessarily lines. The meters measure the sine wave of the currents
True RMS Volt Meters (72 Companies)
TRUE RMS Volt Meters are electronic devices that are designed to measure non-sinusoidal wave forms.
VAR Meters (18 Companies)
A VAR Meter is an instrument that measures and registers the integral of reactive power over time in the circuit to which it is connected.
VHF/UHF Generators (17 Companies)
Very High Frequency (VHF- 30-300MHz) and UltraHigh Frequency (UHF- 300-3000MHz) generators have the ability to produce signals of frequencies that are much higher than other frequency generators.
Vibration Monitors (53 Companies)
A Vibration Monitor displays continuously reversing change in the magnitude of given force. It measures the mechanical oscillation or motion around a reference point of equilibrium.
Video Test Generators generate video test patterns at scan rates that simulate most popular applications. Multiformat Generators create test signals for a myriad of miscellaneous applications. NTSC Generators create signals that can test television waves.
Used in the lab to furnish a standard AC and/or DC voltage level for calibrating amplitude sensitive measuring instruments. Most calibrators can be controlled in amplitude and frequency over various ranges and levels.
Voltage Detectors (33 Companies)
Voltage Detectors are non-contact electronic devices that sense and indicate voltage lines in outlets, lighting fixtures, circuit breakers, wire and cables, and other devices. They are also effective at locating breaks in wires.
Voltage Dividers (37 Companies)
A Voltage Divider (potential divider) is a simple linear circuit that produces an output voltage that is a fractional part of the input voltage. They are most often used to create stable reference voltages.
Voltage Testers (53 Companies)
Voltage Testers are primarily used to determine whether there is current flowing through a wire and can also test for grounding.
VXIbus Test and Measurement Instruments are open standard platforms that are automated test compatible. They can hold up to 13 applications.
Watt Hour Meters (36 Companies)
A Watt Hour Meter is a device that records electrical energy, usually in kilowatt hours.
Watt Meters (58 Companies)
Watt Meters are devices that are used to measure the electric power in watts of a tested circuit. Watt meters are available in both analog and digital form.
Waveform Digitizers (59 Companies)
Waveform Digitizers measure and analyze waves by representing them with discrete sets of their points.

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