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
Low Power Potentiostats
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Potentiostat Wenking MP 04T, max. current 400 mA, max. voltage 25 V, output power 10 W, reference electrode input 1012 Ohms, slew rate 10 V/ µs, 1 control input, floating current output, buffered potential output, control range ± 10 V external, internal control voltage source ±2 V, rise time constant (closed loop, ohmic load) 1 µs typ., dimensions 165 x 105 x 165 mm (w x h x d), weight 1.4 kg
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Product
Electronic Stethoscopes
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Electronic Stethoscope Standard Headphones are designed to help locate the source of excess bearing and machine noise easily at low cost, it is an ideal easy to use listening device for mechanically generated noise in all types of applications, the 3.5mm jack socket tape output can also be fed into an audio tape recorder to store the data for either further analysis or as a reference for future comparison.
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Product
Ferroalloy Reference Materials
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NCS Testing Technology Co., Ltd.
Ferroalloy Standards by NCS
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Product
Lightning Sensor Breakout
SEN-39001
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Breakout board for the AS3935 digital lightning sensor based on the AMS reference design. Includes specially tuned antenna, SPI or I2C interfacing, and a wide 2.4V to 5.5V standard operating range. This innovative sensor is designed to interface with most current development systems and boards, including all current Arduino modules. The breakout board features an inductor (antenna) specially designed for this application, and the board ships fully calibrated. This ensures that you don't have to write a massive back-end to support low-level IC calibration, just focus on your final application!
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Product
Microwave Wideband Direct Modulated DFB Transmitters (without RF Amp)
MT50 (40KHz~20GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MT50 series microwave wideband direct modulated DFB transmitter, are able to transmit 20G microwave RF signal with long distance, wide bandwidth, and flat responsibility. They provide an outstanding linearity fiber optical communication for analogue and digital wideband microwave application. Due to avoidance of using expensive coaxial cable or wave guide, there will be no limitation in transmission distance, which improves the signal quality and reliability of the microwave communication. They can be widely applied in microwave communication system such as remote wireless; timing and reference signal distribution, telemetry, measurement and delay line etc.
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Product
Fast Performance Check For Your Moisture Analyzers
SmartCal
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SmartCal is an innovative test substance that offers a fast way to verify the performance of your moisture analyzer. Testing it regularly with SmartCal ensures that your moisture measurements are reliable all the time. Learn more about performance testing and how SmartCal ensures trusted results. The SmartCal test takes just 10 minutes and it is done in the same easy way as a regular measurement. It is an ideal reference substance because a specific amount of moisture is released depending on the drying temperature selected. SmartCal measurement reports make it easy to monitor and interpret your instrument's performance over time. Results can be stored directly in the instrument or manually entered into our free validated Excel report sheet.
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Product
Easy3DMatch
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Align a scanned 3D object with another scan or with a reference meshCompute the local distances between 3D scans and a golden sample or reference meshDetect anomalies such as misplaced features, geometric distortions, gaps, bumps,...Compatible with all 3D sensors that produce point clouds, depth maps or height maps
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Product
Software
Junction Measurement and Analysis
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Materials Development Corporation
A comprehensive set of analyses for junction diode or Schottky barriers begins with C-V data gathering that adjusts the voltage step to the slope of the C-V characteristics. This assures an optimum set of C-Vdata whether the voltage range is small or large. Doping profile and resistivity profile are both available at the touch of a key. Plots of 1/C2 - V or Log(C) - Log (V+ phi) show doping uniformity and doping slope factor. Exclusive recalculation options allow adjustment of stray capacitance and area to facilitate calibration using a standard reference wafer of known doping or resistivity.
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Product
Optical Loss Test Set (OLTS)
MaxTester 940/945
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First tablet-inspired, multifunction optical loss test set (OLTS) delivering insertion loss, optical return loss and fiber length measurements at two wavelengths in five seconds via fully automated bidirectional FasTesT™ analysis. With its step-by-step reference wizard and intelligent fault diagnosis, the MAX-940/945 provides expert guidance throughout the test process to ensure immediate efficiency by first-time users while removing risk of errors or negative loss—a common source of issues when testing low loss fibers.
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Product
Surface Measurement Instrument
SMI
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Redefining speed and accuracy in non-contact metrology, the Optikos SMI is a high-speed surface topography instrument that characterizes spherical, toric, and aspheric surfaces. The SMI measures surface shape deviations of precision surfaces using wavefront analysis technology. Configured to measure such items as: micro-optics, ball lenses, and contact lens molds, the instrument allows users to easily measure aspheric and toric parts without the need for reference surfaces.
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Product
Diagnostic Software
Developer Toolbox
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The world's most widely used SCSI diagnostic software product is now available in a reference library. The Developer Toolbox uses our proven interface to access SCSI, Fibre Channel, or ATAPI devices from Visual Basic or C++ running on all 32 bit versions of Windows.
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Product
OnyxFX FlexorSet 8-Channel 250 MHz A/D with DDCs - 3U VPX
Model 5973-317
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- Supports Xilinx Virtex-7 VXT FPGA- GateXpress supports dynamic FPGA reconfiguration across PCIe- Eight 250 MHz 16-bit A/Ds- Eight multiband DDCs- 4 GB of DDR3 SDRAM- Sample clock synchronization to an external system reference- PCI Express (Gen. 1, 2 and 3) interface up to x8- User-configurable gigabit serial interface- Optional optical Interface for backplane gigabit serial interboard communication- Optional LVDS connections to the Virtex-7 FPGA for custom I/O- Compatible with several VITA standards including: VITA-46, VITA-48 AND VITA-66.4 and VITA-65 (OpenVPX™ System Specification)Ruggedized and conduction-cooled versions available
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Product
GPS Frequency Reference
E8000
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The Quartzlock E8000 GPS Frequency Reference is a breakthrough in exceptionally low cost, traceable, 1-U rack mount, calibration-free, off-air frequency & time standards. These very low cost references maintain the high frequency & time accuracy required for demanding applications. Ultra low noise option are available.
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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
Terminal Block and SCSI-II 68 Pin Connector with 2 Meter Cable
U2902A
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The Keysight U2902A is an accessory compatible and recommended to be used with the U2300A Series USB Modular Multifunction Data Acquisition and U2500A Series USB Modular Simultaneous Sampling Multifunction Data Acquisition. The pin-outs of the U2902A is dependent on the USB Data acquisition unit that it is working with. For more information, please refer to the data sheet or the user guide of the USB Data Acquisition unit that U2902A is to be used with.
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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
Cleaning Validation
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Cleaning validation, which is essential for quality assurance in pharmaceutical manufacturing, refers to the quantification of residues after cleaning of manufacturing facilities and equipment to verify that the amount is below a predetermined acceptable limit.
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Product
4-Channel 200 MHz, 16-bit A/D with Virtex-7 FPGA - 3U VPX
Model 52760
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-7 VXT FPGAs- GateXpress supports dynamic FPGA reconfiguration across PCIe- Four 200 MHz 16-bit A/Ds- 4 GB of DDR3 SDRAM- Sample clock synchronization to an external system reference- LVPECL clock/sync bus for multiboard synchronization- Optional user-configurable gigabit serial interface- Optional LVDS connections to the Virtex-7 FPGA for custom I/O- 3U VPX form factor provides a compact, rugged platform- Compatible with several VITA standards including: VITA-46, VITA-48 and VITA-65 (OpenVPX™ System Specification)- 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
Reference Magnets
Series MT
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The reasonably priced WUNTRONIC standard reference magnets offer the possibility in a simple way of being able to calibrate or to check magnet measuring instruments like Gauss Meter/Tesla Meter with the respectively accompanying probes in a defined magnetic field.
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Product
Optical Transimpedance Amplifiers
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Analog Devices optical transimpedance amplifiers offer a complete, high performance, single chip solution for converting photodiode current into a differential voltage input. Supporting data rates from 155 Mbps to 11.1 Gbps, our transimpedance amplifiers are ideally suited for data communications and telecommunications applications supporting lay protocols including 1×, 2×, 4×, and 8× Fibre Channel, 10GBASE-LX4, SONET/SDH up to OC-192 with FEC, and 10 Gigabit Ethernet. Our transimpedance amplifiers feature low input referred noise current, high input current, and low power dissipation.
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Product
IP67 DC Blocking Splitter Combiner
PD5143
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INSTOCK Wireless Components, Inc
PD5143 is an IP67 outdoor, weather resistant, DC blocking, four way, RF broadband, 50 ohm, power divider, power combiner furnished with SMA type coaxial connectors. The passive Wilkinson design passes RF and the 10 MHz reference signal through both ports while blocking DC current. This configuration is typically used in combining applications to prevent passing DC to the sum and adjacent ports. Max voltage rating at the DC blocked ports is 50 VDC. All wireless band applications in the frequency range from 698 to 2700 MHz are covered with best in class RF performance. The RoHS compliant PD5043 is a bidirectional device capable of 40 W max microwave input power levels in both power splitter and combiner apps. See 4 way power divider input rating tables for additional power handling info.
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Product
Erbium Fiber Frequency Comb
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Detailed description of item: The AOSense frequency comb is a low noise, polarization maintaining (PM) device. Key features include a PM fiber architecture centered at 1550nm with turnkey modelocking; a free-running linewidth of the carrier-envelope offset frequency of <200 kHz; a temperature-insensitive all-fiber f-2f interferometer exhibiting fceo beatnotes with SNR > 45dB (300kHz RBW); and dual fast/slow cavity length actuators with a bandwidth of >300 kHz. The repetition rate of the comb is factory set and allows matching across multiple combs for dual comb applications. The optics package incorporates an optical heterodyne module designed for locking to the comb to an ITU-specified laser reference. The comb is capable of supporting an Allan deviation of < 5 x 10-18 at 1 second and ~10-20 after 105 seconds. Add-on features include all fiber extensions to visible wavelengths corresponding to several atomic transitions. An integrated comb electronics package is currently under development.
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Product
6-Ch 200 MHz A/D with DDC & 4-Ch 800 MHz D/A with DUC, Kintex UltraScale - 6UVPX
Model 58821
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- Jade Xilinx Kintex UltraScale FPGA Products and Navigator Design Suite Software Video- Jade Xilinx Kintex UltraScale FPGA Family Brochure- Complete radar and software radio interface solution- Supports Xilinx Kintex UltraScale FPGAs- Six 200 MHz 16-bit A/Ds- Six multiband DDCs (digital downconverters)- Two DUC (digital upconverter)- Four 800 MHz 16-bit D/As- 10 GB of DDR4 SDRAM- Sample clock synchronization to an external system reference- LVPECL clock/sync bus for multimodule synchronization- PCI Express (Gen. 1, 2 & 3) interface up to x8- Optional LVDS and gigabit serial connections to the FPGA for custom I/O- Compatible with several VITA standards including: VITA-46, VITA-48 and VITA-65 (OpenVPX™ System Specification)- 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
Spectral Phase Measurement
Avoca SPIDER System
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Spectral phase interferometry for direct electric-field reconstruction (SPIDER) is one technique that can recover the spectral phase of an input pulse, without needing any reference pulse. SPIDER interferes two pulses which areseparated in time and in frequency, and the resultantinterferogram is read by a spectrometer.
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Product
Rubidium Frequency Standard
RFS VXI
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*RFS VXI is designed to work as part of information measuring systems based on the VXI bus as a rubidium frequency standard.*RFS VXI is intended for use as a highly stable laboratory signal source for checking generator devices, time-frequency measuring equipment and other equipment, synchronizing navigation systems.*The RFS VXI contains two independent rubidium reference oscillators: main and standby.*RFS VXI is a VXI standard, register based device and measures C-1.*RFS VXI implements the "Self-control" mode, which checks the output frequencies of the rubidium standard.
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Product
Automated Optical Inspection
K Series3D
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K Series and K Series3D are the reference in Automated Optical Inspection (AOI), allowing 2D and 3D inspection with very low false calls rate, for both pre-reflow and post-reflow. They are the most powerful gatekeepers to guarantee high quality level for the assembled PCB.
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Product
Phase Locked Oscillators
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Phase locked oscillators (PLO) utilize state-of-the-art planar circuits, three-terminal devices and dielectric resonator technology to generate high-quality microwave signals at lower frequencies. Frequency multipliers, amplifiers and filters are used to extend the low frequencies for higher frequency requirements. The standard offering covers the frequency range of 2 to 110 GHz and provides both internal and external reference options. The frequency stability and phase noise are dependent on the oscillator reference type.
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Product
Weather Radar Receiver
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This is an example of a custom four-channel C-Band Receiver uses a single conversion technique to translate incoming 5.56 GHz radar signals to a 60 MHz IF. The Receiver is divided into two polarization sections, each with a dedicated channel for the received signal and a second channel for a reference signal originatingfrom the transmitter. There are two identical circuits in the Receiver, one reserved for vertically polarized signals, and the second for horizontal signals.
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Product
SMB Female to BNC Female Cable, 50 Ohm, 61 cm
763389-01
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The SMB-BNC Coaxial Cable, sometimes referred to as SMB-100 or SMB-110, connects measurement and signal devices. NI offers this 50 Ω cable in different lengths and quantities.
