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
T7 Fiber-Optic Cable Assembly for GPIB-140, 100 m
182805-100
Cable Assembly
2-Pin Male to 2-Pin Male, Core/Clad 62.5/125 um, 850 nm Wavelength Fiber-Optic Cable for GPIB-140A Extender - The GPIB T7 Cable, sometimes referred to as GPIB Cable, connects your system to high-speed GPIB-140A extender devices. You can use the GPIB T7 Cable with a GPIB extender to increase the cable length of your system up to 1 km without comprising the integrity of your GPIB system or requiring any application modifications. The GPIB T7 Cable is offered in different lengths.
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Product
Sound Level Calibrator
511E
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Accepted internationally 1 kHz represents the "0 dB" reference point of A, B, C Weighting and other filters utilized in acoustic measurement. The Pistonphone - a mechanical sound source - offers a slightly higher degree of accuracy at a substantial increase in cost. In addition, the 200 or 250 Hz operating frequency is mechanically limited and not suited for measurements of filtered inputs. The 0.2 dB accuracy is quickly lost in the 0.7 to 1.5 dB tolerances acceptable for weighting filters at frequencies around 250 Hz.
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Product
SMA Male to SMA Male Cable, 50 Ohm, 12.7 cm
763443-01
Coaxial Cable
The SMA-SMA Coaxial Cable, sometimes referred to as SMA100, connects measurement and signal devices. NI offers this 50 Ω cable in different lengths.
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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
Development Boards
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Advantech Development boards provide a schematic software & reference to reduce design effort at the development stage. Development Boards have been designed in order to allow customers to verify the functions of COM, text carrier board problems and support COM series. Advantech has designed a Development Board which can be used to test carrier board problems and support COM series, and Qseven, ETX / XTX form factors.
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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
PXIe Vector Signal Generator: 1 MHz to 3 GHz or 6 GHz
M9381A
Vector Signal Generator
Choose your RF modulation bandwidth, 40, 100, or 160 MHz, and easily upgrade as test needs change Increase throughput with fastest RF frequency tuning and amplitude switching for high-speed automated test Save space with a compact solution for up to 8x8 MIMO with phase coherence Get up and running quickly with validated application-specific reference solutions Simplify signal creation with Keysight's Signal Studio and Waveform Creator
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Product
Parasitics Extractor Tools
FastHenry
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Massachusetts Institute of Technology
FastCap and FastHenry, from MIT (Massachusetts Institute of Technology) are two free parasitics extractor tools for capacitance, and inductance and resistance. Quoted in many scientific articles, are considered golden references in their field. .
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Product
OnyxFX FlexorSet 2-Ch. 3.0 GHz A/D, 2-Ch. 2.8 GHz D/A - 3U VPX
Model 5973-320
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- Includes Xilinx Virtex-7 FPGAs- GateXpress supports dynamic FPGA reconfiguration across PCIe- Two 3.0 GHz A/Ds- Two 2.8 GHz D/As- Two digital downconverters- Two digital upconverters- 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- LVDS connections to the Virtex-7 FPGA for custom I/O and synchronization- 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- Xilinx Sublicense FAQs - Pentek Sublicensing Agreement for Xilinx JESD204 IP Cores
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Product
Imaging & Analysis
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Microscopes offered by Buehler generally fall into the categories of stereo microscopes, upright microscopes, or inverted microscopes. Inverted microscopes are commonly referred to as metallurgical microscopes. Microscopes may offer episcopic (reflected light) observation, diascopic (transmitted light) observation, or both possibilities. Illumination may be delivered in bright field mode (BF) or dark field mode (DF), and several techniques such as differential interference contrast (DIC) and polarized light microscopy make use of the nature of light to reveal specific pieces of information when studying materials.
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Product
Advanced PC/104 Timing Board
PC104-Plus SyncClock32
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The PC/104Plus SG from Brandywine Communications provides precision time with zero latency to the host computer over the PCI bus. An on-board microprocessor automatically synchronizes the clock to reference signal inputs. The reference signal inputs can be 1 PPS, IRIG or NASA time codes and optionally, GPS or HaveQuick.
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Product
3-Ch 200 MHz A/D w/ DDC & 2-Ch 800 MHz D/A w/ DUC, Virtex-6 FPGA - 3U VPX
Model 52621
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Three 200 MHz 16-bit A/Ds- Three multiband DDCs (digital downconverters)- One DUC (digital upconverter)- Two 800 MHz 16-bit D/As- Multiboard programmable beamformer- Up to 2 GB of DDR3 SDRAM or 32 MB of QDRII+ SRAM- Sample clock synchronization to an external system reference- Optional LVPECL clock/sync bus for multiboard synchronization- 3U VPX form factors 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- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Product
RF Calibration Accessories
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Employing good connector practice when using an RF calibrator not only avoids measurement errors and minimizes connector repeatability uncertainties but also reduces risk of damage to connectors and equipment. The 96000CONN and 9600CONN connector kits include a range of adapters and torque wrenches intended for use with the 96000 Series RF Reference Sources (9600CONN for the 96040A and 96000CONN for the 96270).The 9600CONN connector kit includes one each of 50 Ω and 75 N-Type male-female adapter for use with the 96000 Series levelling head as a “connector saver” or “sacrificial connector” to avoid risk of damage when making connections to UUT/DUT instruments.
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Product
3-Channel 200 MHz A/D and 2-Channel 800 MHz D/A with Virtex-6 FPGA - 6U VPX
Model 57620
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Three 200 MHz 16-bit A/Ds- One DUC (digital upconverter)- Two 800 MHz 16-bit D/As- 2 GB of DDR3 SDRAM; 32 MB of QDRII+ SRAM- PCI Express (Gen. 1 & 2) interface up to x8- 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-6 FPGA for custom I/O- 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
3U CPCI I/O & Comm Board
3U cPCI 75C5
Multifunction I/O
NAI’s 75C5 is a 3U cPCI Multifunction I/O and Communication Board with three independent function module slots. Two of the slots can be configured with a variety of I/O and communication functions; the third, with either a combination module featuring four multiplexed Analog-to-Digital (A/D) channels and 28 Discrete I/O programmable channels, or with a reference power supply. Using multiple DSPs, the enhanced motherboard enables higher processing power and dedicated pre-processing control for each module.
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Product
Rubidium Atomic Audio Clock
PERF10
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Stanford Research Systems, Inc.
Perfection is a high standard - but your studio clocks deserve nothing less. That''s why we designed the PERF10, to offer audio professionals and demanding audiophiles a frequency reference of staggering accuracy and unmatched stability.
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Product
On-stream Analyzer
Boxray Compact
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For most concentrator plants. The Boxray Compact onstream analyzer has three measurement cells that are mounted on a sled that moves sideways. Two cells are used for sample streams and the third is adapted for a reference sample. Boxray Compact is equipped with a multiplex system that allows up to 16 sample streams, eight streams to each of the two measurement cells. The reference sample is analyzed on a configurable interval.
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Product
Next Generation Subsea Attitude and Heading Reference Systems
TOGS
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The new TOGS subsea navigation system is built on core TSS fibre optic gyro (FOG) navigation technology with significant improvements in efficiency and functionality. It is available in three standard heading accuracy variants: 0.1° (TOGS1), 0.3° (TOGS3) and 0.5° (TOGS5), all rated for operational depths to 4,000m or 6,000m. Attitude data is delivered via accurate roll/pitch measurement capabilities of 0.01° (TOGS1) and 0.05° (TOGS3 and TOGS5), and a heave performance of 5cm or 5%.
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Product
2-Ch 500 MHz A/D with DDC & 2-Ch 800 MHz D/A with DUC, Kintex UltraScale - 6UVPX
Model 57851
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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- Supports VITA-49.2 VITA Radio Transport standard- Two 500 MHz 12-bit A/Ds- Two multiband DDCs (digital downconverters)- One DUC (digital upconverter)- Two 800 MHz 16-bit D/As- 5 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)- Optional 400 MHz 14-bit A/Ds- 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
Cable Assembly, Receiver, TriPaddle, 72", 200 Pin Male LFH, M3 jackscrews
540105040505
Cable Assembly
Cable Assembly, Receiver, TriPaddle, 72", refer to drawing for wire list, M3 jackscrews
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Product
AC Reference Generators
SR25
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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
Incremental Encoders
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Versatile, compact and flexible – Incremental encodersIncremental encoders are used when retention of absolute position upon power loss is not required. These encoders provide information about the position, angle and number of revolutions. The number of lines per revolution determines the resolution. The current position can be determined by counting these pulses from a reference point. Upon activating the machine, a reference run to the reference point is required to determine the absolute position of the encoder.
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Product
Anti-Sulfurated Thick Film Type Resistors, Precision Type
ERJ-U2R/ERJ-U3R/ERJ-U6R Series
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Panasonic Industrial Devices Sales Company of America
High Precision And High Resistance To Sulfurization In One Resistor!Panasonic's ERJ-U2R, ERJ-U3R, ERJ-U6R (ERJ-U*R Series) offers high precision and also provides anti-sulfurization characteristics that avoid an open circuit caused by a sulfide disconnection. High resistance to sulfurization is achieved through the use of an anti-sulfurated electrode structure and material in the manufacture of ERJ-U*R Series Resistors. AEC-Q200 Compliance and IEC 60115-8, JIS C 5201-8 and JEITA RC-2134C Reference Standards for the entire ERJ-U*R Series of High Precision, Thick Film Chip Resistors from Panasonic ensures optimal quality and reliability.
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Product
OnyxFX FlexorSet 4-Ch 16-bit: 500 MHz A/D & 2 GHz D/A - 3U VPX
Model 5973-324
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- Supports Xilinx Virtex-7 VXT FPGA- GateXpress supports dynamic FPGA reconfiguration across PCIe- Four Channel 500 MHz 16-bit A/Ds- Four Channel 2 GHz 16-bit D/As- 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- Xilinx Sublicense FAQs - Pentek Sublicensing Agreement for Xilinx JESD204 IP Cores
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Product
Nonferrous Metal Reference Materials
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NCS Testing Technology Co., Ltd.
Nonferrous Metal Standards
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Product
Reach-In Vacuum Climatic Test Chamber
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WEIBER Vacuum Climatic Test Chamber are rigid enclosures from which air and other gases are removed by a vacuum pump. This results in a low pressure environment within the chamber, commonly referred to as a vacuum. A vacuum environment allows researchers to conduct physical experiments or to test mechanical devices which must operate in outer space (for example) or for processes such as vacuum drying or vacuum coating.
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Product
VXI Switching
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The Aerospace and Defense industries were early adopters of modular test platforms. One of the first successes was VXI test systems and VXI switching. They served these industries very well for more than 20 years. Now, as VXI test systems become obsolete, test systems developers are looking to PXI as the next generation modular test platform for their industries. We offer a few different references to help you in making a switch to PXI.
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Product
Digitizer
742 Family
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The 742 is the Switched Capacitor Digitizer family, based on the DRS4 chip by PSI, with the highest sampling frequency (5GS/s) and channel density. It can record very fast signals from scintillators coupled to PMTs, Silicon Photomultipliers, APD, Diamond detectors and others, and save them with high efficiency and precision for advanced timing analysis. The 742 family has an additional channel (two channels in case of VME boards) which can be used as time reference for time of fight measurements. The resolution of this kind of measurements can reach up to 50 ps.
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Product
SH68-68-EPM Shielded Cable, 68 D-Type to 68 D-Type, 0.35m
199006-0R35
Multifunction Cable
68-Pin Female to 68-Pin Female, Twisted Pair, Shielded Multifunction Cable - The SH68F-68F-EPM Cable, sometimes referred to as SH68-68-EPM, connects NI DAQ 68-pin devices to 68-pin accessories. The SH68F-68F-EPM Cable has D-type connectors and is offered in different lengths.
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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.
