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AC power sources provide alternating power and typically have adjustable output values for the testing of component response at various voltage, current and frequency levels.
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Analog-to-digital converters (ADC) sample an analog signal and convert it to a series of digital values to represent the signal to a computer processor.
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Antennas are structures or devices used to collect or radiate electromagnetic waves.
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Automated test equipment (ATE) is used to monitor and control test and measurement devices, keeping human interaction at a minimum.
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Bias tees allow the insertion of DC voltages into a signal path without disrupting the existing signal in that path.
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Cable assemblies are collections of wires or cables banded into a single unit with connectors on at least one end.
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Cable testers are handheld or benchtop electronic devices that measure the electrical and physical properties of network cabling.
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Calibration instruments use electrical signals or physical quantities to calibrate sensors and meters. Devices that produce electrical signals can serve as precise meters for sensor calibration, or send output signals to other devices.
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Calibration standards and reference sources include any source that can provide a reference for the calibration of an instrument or comparison of a material or component.
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Capacitance meters measure the value of capacitance in circuit elements.
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Clamp meters are ammeters that can measure current without the need to disconnect the wires where the measurement occurs. They provide information about current draw and current continuity in order to help users troubleshoot erratic loads and trends.
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Coaxial connectors are composed of an insulated central conducting wire wrapped in another cylindrical conductor (the shield). The cable is usually wrapped in another insulating layer and an outer protective layer. Coaxial cables and connectors have the capacity to carry vast quantities of information. They are typically used in high-speed data and CATV applications.
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Computers are programmable electronic devices that accept data, execute prerecorded instructions, perform mathematical and logical operations, and output results.
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Current sources provide reliable current for electrical component testing and for powering specialized components.
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Current transformers are used to step down current in a very predictable fashion with respect to current and phase. They are generally used as inputs to current instruments.
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Data acquisition is the digitizing and processing of multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes. Signal conditioning includes the amplification, filtering, converting, and other processes required to make sensor output suitable for rereading by computer boards.
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Data acquisition I/O modules or cards have both input and output functionality. Digital or discrete I/O modules include on-off signals used in communication, user interface, or control.
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Data acquisition input modules accept sensor and other signal output for data acquisition systems. They may include signal conditioning prior to the analog-to-digital conversion stage.
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Data acquisition output modules or cards transfer amplified, conditioned, or digitized signals.
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Data acquisition systems and instruments collect, digitize and process multiple sensor or signal inputs for the purpose of monitoring, analyzing and/or controlling systems and processes.
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DC power supplies accept an input power and output the desired form of DC power. Common types of DC power supplies include linear power supplies, switching power supplies, DC-DC converters, and silicon controlled rectifier (SCR) type power supplies.
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DC power systems provide continuous DC power through multiple outputs. Most DC power systems include a battery backup, temperature compensation, and other features.
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Digital ammeters are instruments that measure current flow in amperes and display current levels on a digital display. These devices provide information about current draw and current continuity in order to help users troubleshoot erratic loads and trends
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Digital multimeters (or multi-meters) are used to measure electrical quantities such as voltage, current, resistance, frequency, temperature, capacitance, and time period measurements.
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Digital resistance meters are instruments that measure electrical resistance. They use solid-state components and display values digitally.
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Digital voltmeters are instruments that measure voltage or voltage drop in a circuit. They use solid-state components and display values digitally.
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Electrical connectors are devices that join electrical circuits together. Male connectors plug into receptacles, jacks, and outlets. Female connectors contain sockets to receive other devices.
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Electrical terminators are installed at the end of a bus or transmission line to prevent signals from reflecting back. Sometimes called electrical terminators, these devices are used to prevent electrical interference.
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Electrical voltage sensors measure AC and/or DC voltage levels. They receive voltage inputs and provide outputs as analog voltage signals, analog current levels, switches, or audible signals.
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Electronic counters and electronic timers are completely electronic units for performing a variety of counter or timer functions.
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Electronic loads and load banks are used to test electrical and electronic equipment. They mimic load requirements for testing and troubleshooting purposes.
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Fiber optic fault locators shine red laser light through jacketed fibers to identify breaks, bends, faulty connectors, splices and other causes of signal loss.
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Fiber optic power meters are instruments that measure the average power of a continuous light beam. They are used to test signal power in fiber optic networks.
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Fiber optic test equipment is used to detect the signal loss/change through a fiber optic cable.
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Fiber optic test sources review the performance of a system by injecting light through the fibers.
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Frequency meters are instruments that provide analog outputs as frequencies that vary as a function of the applied input. They display values on a dial, usually with a needle or moving pointer.
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Ground resistance testers are devices that are used to measure and test electrical grounding systems.
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Handheld computers are portable devices including notebook and subnotebook computers, palmtops, and PDAs.
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High voltage power supplies use linear technology to provide one or more DC outputs at voltage levels of hundreds or thousands of volts.
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Industrial computers are similar to personal computers (PC), but they are intended for use on a factory floor or in other harsh environments.
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Instrument transformers are used to step-down current or voltage to measurable values. They provide standardized, useable levels of current or voltage in a variety of power monitoring and measurement applications.
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LCR meters and impedance meters measures inductance (L), capacitance (C), and resistance or impedance (R).
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Liquid crystal display (LCD) modules are used at the component level in place of less efficient displays such as cathode ray tubes (CRTs). These modules do not include a housing and must be incorporated into a larger instrument or system.
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Logic analyzers are used to characterize and debug hardware, design and test firmware and software, and perform synthesis integration.
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Lux meters or light meters measure illumination in terms of luxes (lx) or foot candles (fc).
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Megohmmeters generate high voltage, low current signals for testing the breakdown strength of electrical insulation. They are called megohmmeters because the insulating resistance of a properly designed product is expressed in mega ohms (M  ).
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Milliohm meters are capable of measuring very small resistances
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Modular connectors and RJ connectors are plug-in units used in many networking and telecommunications applications. Registered jack (RJ) connectors are a type of modular connector, which often have protective capabilities such as integrated filters to protect against unwanted signals or some type of magnetics to provide filtering, signal conditioning, and isolation.
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Network analyzers and protocol analyzers are test equipment used to troubleshoot and analyze network problems.
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Network equipment is used to split, switch, boost, or direct packets of information along a network. This product area includes network hubs, switches, routers, bridges, gateways, multiplexers, transceivers and firewalls. Often, network equipment is defined by is protocol or port type (e.g., Ethernet switch, USB hub).
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Network gateways interconnect networks with different, incompatible communication protocols.
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Network test equipment is used to test, probe, and analyze telecommunication, network and telephone systems.
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Noise generators and sources are used to produce noise outputs for testing radio frequency (RF) equipment.
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Noncontact infrared temperature sensors absorb ambient infrared (IR) radiation given off by a heated surface. They are used in applications where direct temperature measurement is not possible.
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Optical spectrum analyzers (OSA) can divide a lightwave signal into its constituent wavelengths. This means that it is possible to see the spectral profile of the signal over a certain wavelength range.
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Oscilloscopes translate an electronic signal into a pattern or waveform on a screen. As it is traced across the screen, the waveform creates a signature of the signal's characteristics.
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Phone jacks and plugs are connectors used with telephones. They are also known as modular jacks (female) and modular plugs (male).
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RF power dividers and power combiners are circuits that accept an input signal and deliver multiple outputs equal in phase and amplitude. In hybrid varieties, the signal is split into different phases with equal amplitude.
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Power meters and wattmeters are used for high-accuracy measurements of power over a wide-frequency bandwidth, and from both AC and DC circuits.
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Power quality analyzers measure and monitor electrical power parameters to avoid disturbances, track steady-state variations, and ensure the reliability of power distribution systems.
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Power supplies are devices that produce AC or DC power. This grouping includes current sources, DC power supplies, AC-DC adapters, DC-DC converters, AC power sources, and DC-AC inverters.
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Pressure instruments are used to measure, monitor, record, transmit or control pressure.
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Programmable power supplies are digitally controlled power sources that provide accurate and adjustable levels of voltage, current, and frequency. They include a processor, voltage/current programming circuits, current shunt, and voltage/current read-back circuits.
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Resistors are electrical components that oppose the flow of either direct or alternating current. They are used to protect, operate, or control circuits.
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Resistors and potentiometers are passive electronic components that oppose the flow of either alternating current (AC) or direct current (DC).
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RF adapters are used to connect different waveguides and/or coaxial types. They are passive devices that direct radio frequency (RF) signals with minimal return loss.
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RF amplifiers are devices that accept a varying input signal and produce an output signal that varies in the same way, but with larger amplitude.
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RF and microwave connectors are used to connect the ends of cables in systems that operate in the radio frequency (RF) or microwave spectrum. They include threaded or bayonet-style couplings that snap, screw, or push into place.
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RF attenuators are circuits that reduce the power level of a signal by a certain amount (gain), with little or no reflection. They reduce the output signal with respect to the input and measure the power reduction in decibels (dB).
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RF couplers are circuits that sample RF transmissions by combining (coupling) signals asymmetrically. There three basic types of devices: unidirectional, bidirectional, and dual directional.
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RF phase detectors and comparators are circuits or instruments that provide a DC output voltage proportional to the difference in phase between two RF signals.
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RF terminators are used to absorb energy and prevent RF signals from reflecting back from open-ended or unused ports.
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RF test equipment generates test signals or analyzes transmitted signals from RF components or equipment.
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Scalar network analyzers measure the amplitude portion of scattering or S-parameters, reflection and transmission coefficients between the incident and reflection waves that describe a device’s behavior under linear conditions at the microwave frequency range.
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Serial communication adapters provide one or more serial ports to a host computer. They interface with the host computer via a data bus and add RS232, RS422, RS485 and/or other types of serial ports.
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Serial communication products are used in industrial and commercial systems to transmit data bit-by-bit, or sequentially, over a single wire. They include serial servers, serial hubs, serial adapters, serial data converters, serial routers, and serial multiplexers.
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Signal conditioning products provide amplification, filtering, converting, and other processes required to make sensor output suitable for reading by computer boards.
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Signal converters contain inputs for one type of signal and outputs of another. Features can also include filtering and amplification or attenuation.
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Signal generators and waveform generators are used to test and align all types of transmitters and receivers, to measure frequency and to generate a signal, waveform or noise source. Signal generators can use AC energy, audio frequency (AF) and radio frequency (RF) to function.
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Specialty timers are specialty or proprietary products related to timers and timing devices.
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Spectrum analyzers and signal analyzers display raw, unprocessed signal information such as voltage, power, period, wave shape, sidebands, and frequency. They can provide the user with a clear and precise window into the frequency spectrum.
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Temperature indicators and temperature instruments are designed for temperature monitoring and analysis. These devices either come equipped with an integral sensor, or require sensor input.
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Temperature instruments use contact or noncontact methods to measure temperature. Products include dial, digital, industrial and laboratory thermometers; temperature probes, indicators, and sensors; RTD elements and transmitters; and thermistors, thermocouples, thermopiles, and thermal switches.
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Temperature probes are used in various temperature sensing applications. Technology options include thermocouple, RTD, thermistor and solid state style probes.
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Temperature sensors are measurement devices that infer temperature by sensing some physical characteristic (i.e. resistance, emf or thermal radiation).
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Temperature signal conditioners accept outputs from temperature measurement devices such as resistance temperature detectors (RTDs), thermocouples, and thermistors. They then filter, amplify, and/or convert these outputs to digital signals, or to levels suitable for digitization.
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Electric test probes are used to establish a connection between a circuit under test and the measuring instrument.
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Thermal imagers detect heat patterns in the infrared wavelength (1 micron to 100 micron) spectrum.
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Optical time domain reflectometers (OTDR) measure the elapsed time and intensity of light reflected along an optical fiber. They are useful tools for locating problems in an optical network as they can compute the distance to breaks or attenuation.
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Vector network analyzers are instruments that measure the complex transmission and reflection characteristics of two-port devices in the frequency domain.
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Video monitors display video images from cameras and recorders, often using cathode ray tube (CRT) technology.
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VME and VXI products is a general search form that covers peripherals for the VersaModle Eurocard (VME) bus and VME extensions for instrumentation (VXI), an electrical and mechanical standard used mainly with automatic test equipment (ATE). VME and VXI products include switches, extenders, controllers, processors, and interface adapters. More detailed search forms are available for individual areas.
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VME switches and VXI switches are used in industrial systems to connect test points, or devices, to instruments for the purpose of testing, measuring or monitoring the system.
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Waveguide terminators absorb energy and prevent RF signals from reflecting back from open-ended or unused waveguide ports.
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