References
A source of comparison.
See Also: Reference Standards, Reference Antennas, Reference Decoders, Reference Jumpers, Reference Sources, Reference Transformers, Reference Transmitters, Acoustical References, Frequency References, Solar Reference Cells
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Product
Single-Ended Amplifiers
Op-Amp
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For designs requiring single-ended amplifiers (op amps), Analog Devices' portfolio of high speed op amps and precision op amps provides a broad choice of products that deliver unmatched performance. Explore op amps by parameters, and find expert system-level advice on design problems with our amplifier reference designs (Circuits from the Lab®), design tools, selection guides, calculators, and SPICE models.
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Product
Rugged GPS Time & Frequency Reference
VersaSync
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VersaSync is a high-performance GPS master clock and network time server that delivers accurate, software-configurable time and frequency signals in harsh environments, including GPS-denied areas. Now with M-Code!
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Product
Gas in Metal Reference Materials
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NCS Testing Technology Co., Ltd.
Gas in Metal Reference Materials by NCS
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Product
Master Reference Generator
Mentor
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Precision Time Protocol IEEE-1588 PTP grandmaster• Multiple video and audio formats in one box• Simultaneous 525/625 and HD Tri Level Sync outputs• Highly accurate GPS reference for synchronisation and timecode• Vector web-browser setup and monitoring tool• Redundant PSU option• Add upgrades and options without return to factory• Generates synchronised audio and video• Redundant units with changeover• 4K test pattern ready (future upgrade)
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Product
EXG X-Series Microwave Analog Signal Generator, 9 kHz to 40 GHz
N5173B
Signal Generator
Balance budget & performance to address parametric testing of microwave components & receiversPerform LO up conversion for microwave backhaul links or CW blocking for receiver testingMaximize test throughput with 600-s frequency switchingCharacterize microwave filters & amplifiers with the best combination of output power, low harmonics & full step attenuationUse as a high-stability system reference: the standard high-performance OCXO has an aging rate of 5x10-10 parts/day
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Product
Room Temperature Sample Holders
12962A
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The 12962A sample holder is designed to allow accurate impedance tests of solid materials to be performed at room temperature. The sample holder consists of two parallel electrodes, one of which is fixed in position and the other which can be moved into contact with the sample by adjustment of a micrometer. The sample holder makes use of guard ring and reference techniques in order to improve accuracy by reducing “fringing” effects at the edge of the sample. The standard electrode provided is 20mm diameter.
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Product
Intelligent Reference
TM-4D
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The Intelligent Reference/TM-4D™ breaks new ground for time and frequency references. For the first time, it is possible to generate and distribute both analog and digital signals to multiple instruments and locations with just one product that fits in a single rack space. The TM-4D is three instruments in one: an Intelligent Reference/TM-4™ precise time and frequency reference, a digital signal distribution amplifier and an analog distribution amplifier. And it eliminates the need for multiple boxes.
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Product
Visual Editor for the Automatic Test Markup Language (ATML)
ATML Pad
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Reston Software offers ATML Pad, a visual editor for the Automatic Test Markup Language (ATML).The ATML formats are versatile but complex. Direct editing in XML is next to impossible, even with capable XML editors. ATML Pad overcomes this problem by exposing an application-specific visual interface. ATML Pad manages the complexity of the ATML formats, allowing you to focus on describing your tests. It abstracts XML ID references, allowing you to simply select the referenced item from a list. In addition, ATML Pad can generate XML IDs automatically and ensures that IDs remain unique while you edit the data.ATML Pad allows you to quickly generate complex ATML constructs through a single mouse click. It validates your data during input and on-demand, ensuring that valid ATML documents are produced.ATML Pad interoperates with the NI TestStand ATML Toolkit to deliver automatic code generation solutions that reduce the cost of implementing NI TestStand test programs and ensures their cost-effective long-term maintainability.
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Product
6-Channel 200 MHz A/D and 4-Channel 800 MHz D/A with Virtex-7 FPGA - 6U VPX
Model 58720
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- Supports Xilinx Virtex-7 VXT FPGAs- GateXpress supports dynamic FPGA reconfiguration across PCIe- Three or six 200 MHz 16-bit A/Ds- One or two DUCs (Digital Upconverters)- Two or four 800 MHz 16-bit D/As- 4 or 8 GB of DDR3 SDRAM Sample clock synchronization to an external system reference- PCI Express (Gen. 1, 2 & 3) interface up to x8- Optional user-configurable gigabit serial interface- Optional LVDS connectionsto the Virtex-7 FPGA for custom I/O- Ruggedized and conduction-cooled versions available- Supports GateXpress® FPGA-PCIe Configuration Manager- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Product
Automated Potentiometer Systems
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Measurements International Ltd.
Intrinsically Accurate Self-Calibrating Ratio Divider, Best Accuracy < 0.05 ppm, Built-in 20-Channel Scanner, Arbitrary Voltages from 1 mV to 1200 V, Bipolar Voltage Measurements, Calibration of Fluke 5700A/5720A, Calibration of 3458A and 8508A, Calibration of Voltage Ratio Dividers (F752A, MI 1340A, G7520), Linearity Calibration of Digital Volt Meters (DVM), Traceability to 10 V Zener Reference.
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Product
Embedded LO Capability
S96084B
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Enables accurate measurement of relative phase and absolute group delay of a frequency converter with a built-in LO source, without having to access a common reference signal
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Product
Humidity Indicators
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A humidity detector, also referred to as a humidity meter or humidity gauge, is a device with a humidity sensor that measures the relative humidity in the air. PCE Instruments offers a number of humidity detector products including handheld humidity detector, data recording or data logging humidity detector, and combination or multifunction humidity detector devices that also measure parameters such as room or ambient temperature and atmospheric or barometric pressure. A humidity detector can measure relative humidity (RH) as a percentage (%) from 0 to 100 % RH, depending on the humidity measurement range of the specific model.Humidity is a key factor in everything from library and museum archival to agriculture, construction, manufacturing, transportation, warehousing, and heating, ventilation, air conditioning and refrigeration (HVACR). A relative humidity meter also is helpful in evaluating workers' heat stress risk on production floors and job sites. In addition, humidity plays an important role in the residential sector. If the humidity is too high in a private household, mold can grow. Mold creates a health hazard for anyone breathing the air in the home.
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Product
Digital to Synchro and Digital to Resolver Converters
Digital / Synchro Converter
Computer Conversions Corporation
1.2VA, 1.5VA, 4.5VA and 5VA Models60 or 400, & 60 and 400 Hz. Models to 22 KHz.Trouble Free Isolated Reference Inputs & Signal OutputsUltra High Efficiency, Low DistortionSelf Powered off the AC Reference Input (DSP Series)Internal Cool AC-Pulsating Supplies (DSP Series)Very Low Loss & Heat DissipationFULLY INTEGRATED, NO EXTERNAL COMPONENTS REQUIREDVery High Resistance to Shock and VibrationHigh Reliability Throughout ImplementationIsolated, Transient, Therrnally & Short Circuit Protected Outputs
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Product
4-Channel 200 MHz A/D with 1532 DDCs, Kintex UltraScale FPGA - 6U VPX
Model 58865
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- Jade Xilinx Kintex UltraScale FPGA Products and Navigator Design Suite Software Video- Jade Xilinx Kintex UltraScale FPGA Family Brochure- Complete software radio receiver solution for extremely high channel-count applications- Uses Xilinx Kintex UltraScale KU035 FPGAs- Four 200 MHz 16-bit A/Ds- Eight wideband DDCs (digital downconverters)- Up to 1524 narrowband DDCs- Sample clock generation and synchronization to an external system reference- Ruggedized and conduction-cooled versions available- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Product
IOT Devices Testing
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IoT devices refer to Internet of Things Devices. They are hardware devices programmed for specific applications and can transmit data over the internet and other networks. IoT devices include sensors, gadgets, actuators, gaming consoles, smartwatches, voice control devices, machines, vehicles, buildings, etc. collection and exchange of data.
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Product
Machine Vision Camera - 2.3 MP, 48 FPS, Sony IMX174, Color
Grasshopper3 GigE
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The Grasshopper®3 GigE camera family utilizes primarily Sony CCD sensors and the Sony Pregius IMX174 sensor. For FLIR GigE cameras with the latest sensors and most advanced feature sets, please refer to our Blackfly S and Oryx camera families.
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Product
PMC-Parallel-485
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The PMC compatible PMC-Parallel-485 design adds 32 [RS-485 /RS-422] differential IO lines to one slot of your carrier board. 2 additional differential pairs are available for a clock & clock enable. The signals can be used to capture data with an external reference or programmed to be references for the rest of the system.
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Product
RS232 Null-Modem Cable, DB-9 Female to DB-9 Female, 4m
182238-04
Serial Cable
9-Pin Female DB-9 to 9-Pin Female DB-9 Serial Cable - The 9F-9F Serial Cable, sometimes referred to as GPIB Serial Cable, connects and controls GPIB devices using RS232 and RS485 serial ports. The 9F-9F Serial Cable is offered in different lengths.
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Product
Crimp Force Monitor
638007950
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The crimp force monitor measures the force signature of a crimped terminal and compares it to a reference crimp. Depending on the limits programmed, the measurement will pass, fail, or be suspect.
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Product
PC-Based Time Interval Analyzer
GT658PCI
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GuideTech’s GT658PCI is an ultra-fast, high resolution, DC – 400 MHz Time Interval Analyzer (TIA), ideal for most PC-based lab bench (timing) test applications. What makes the GT 658 superior to traditional counters is analogous to the difference between volt meters & digital scopes. While both measure voltage, the scope provides much more information about the dynamics of the signal. This is because our patented TIA substantially increases measurement speed, and the measurements are displayed as afunction of time. All of these features, along with the benefit of ‘continuous time correlation to a common reference between all measurement time stamps,’ enable our TIAs to make measurements that weren’t previously possible with traditional counters.
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Product
Height Gages
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Used from a flat surface such as a Starrett granite surface plate, height gages measure the distance from the reference surface to some feature of a part, and can do so with exceptional accuracy. accuracy. Starrett offers a full range of height gages. Our Altissimo advanced electronic height gage is rich in features and exceptionally accurate. gages are available with a choice of range and feature sets. Our vernier height gages are still preferred by many for their exceptional accuracy. For the highest level of accuracy, we offer DIGI-CHEK gages. These tools are typically used in combination with the various scribes, attachments and accessories available from Starrett to complete the inspection work.
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Product
IQ Demodulator
IQD Series
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*Capable of receiving RF and LO frequency inputs *Output from DC to 500 MHz *Internal low noise oscillator Internal reference *Buffered demodulator *Balanced IQ *Optimized for low EVm *Optional internal Reference Detect Switch (EM Research RDS Series) *Up to 250 mega-symbols per second
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Product
Amplifier Modules Band Specific
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Modules are usually smaller and are usually part of systems. You supply your own DC voltage, make the connections and supply your own DC supply. Modules are available with or without heatsinks and fans. Amplifiers Modules are available in both Broadband and Band-Specific frequencies. Modular design concepts save time and money, and are lightweight, reliable, cost-effective solutions. We are well-known in the industry for successfully adapting our amplifiers or custom designing new solutions to suit each unique project. Please refer to our Adapted & Custom Design Solutions link to begin formulating your performance objectives and other criteria.
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Product
Six Single-Speed Synchro / Resolver To Digital Channels
VME1686
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Six single-speed synchro/resolver to digital channels. Self-Test continuously monitors each converter conformance on-line Loss of reference and signal alert
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Product
AC Reference Generators
SR22
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Computer Conversions Corporation
The SR Series are miniature, low cost AC reference generators designed to supply 26 or 115 volt excitation to synchros or resolvers in military and industrial control applications. They accept +/-15V DC and provide up to 5VA of transformer isolated output power. These converters are packaged in PC card mounting modules 2.6”x3.1”x1”H
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Product
PAM4 Optical Reference Transmitters
ModBox-PAM4 series
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The ModBox-PAM4 serie is a 4-level Pulse Amplitude Modulation (PAM4) Optical Reference Transmitters that generate excellent quality PAM4 optical data streams up to 28 Gbaud, 56 GBaud. The ModBox-PAM4 integrates also: ER4 / LR4: CWDM or LAN-WDM 4 lasers sources, SR4: 850nm laser source, PON: 1310 nm and 1490 nm laser sources.
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Product
90-Degree Optical Hybrid
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Six-port hybrid devices have been used for microwave and millimeter-wave detection systems since the mid-1990s and are a key component for coherent receivers. In principle, the six-port device consists of linear dividers and combiners interconnected in such a way that four different vectorial additions of a reference signal (LO) and the signal to be detected are obtained. The levels of the four output signals are detected by balanced receivers. By applying suitable baseband signal processing algorithms, the amplitude and phase of the unknown signal can be determined.
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Product
Gyroscopes
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A device consisting of a wheel or disk mounted so that it can spin rapidly about an axis that is itself free to alter in direction. The orientation of the axis is not affected by tilting of the mounting; so gyroscopes can be used to provide stability or maintain a reference direction in navigation systems, automatic pilots, and stabilizers.
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Product
Saturable Spectroscopy Laser Lock Module
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A compact, mechanically-robust laser frequency reference.
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Product
PWM to Voltage Output D/A Converters
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Analog Devices’ pulse-width modulation (PWM) to voltage output D/A converters convert a PWM input to an accurate, stable, buffered voltage without the ripple, slow settling, and external passive components of discrete filter implementations. Our PWM D/A converters measure the period and pulse width of a PWM input signal and immediately update the D/A converter output with up to 12-bit accuracy and no software coding required. This family of D/A converters is available with 8-bit to 12-bit resolution, dual and quad channels, integrated references, and with high temperature operation. Applications include isolated motor control, automotive headlights or industrial lighting, and other applications that benefit from the simple control interface.
