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
2 Channels, 2-28 Vrms, 47 Hz-20 kHz (max. range), programmable
AC2
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The module is used to provide an AC signal source when a secondary reference source other than the optional on-board reference module is required. The modules are programmable for full range voltage outputs from 2 to 115 VAC, and frequency from 47 Hz to 10 kHz.
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Product
UV Fluorescence Sulfur Dioxide Analyzer
Model T100
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The Model T100 uses the proven UV fluorescence principle, coupled with a state of the art user interface to provide easy, accurate, and dependable measurements of low level SO2.Exceptional stability is achieved with the use of an optical shutter to compensate for PMT drift and a reference detector to correct for changes in UV lamp intensity. A hydrocarbon ‘kicker’ and advanced optical design combine to prevent inaccuracies due to interferents.All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel using NumaView™ Software, or via RS232, Ethernet, or USB com ports, either locally or by remote connection using the included NumaView™ Remote PC Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView™ Software.The Model T100 comes with NumaView ™ Software. NumaView™ Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView ™ Software.
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Product
Particle Counters And Detectors
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Our family of particle counters and particle detectors contain instruments optimized for a variety of applications. In environmental research and monitoring, customers face high concentrations in city centers, near freeways or harbors, or very low concentrations in remote locations which are used as reference sampling points.
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Product
3-Ch 200 MHz A/D with DDC & 2-Ch 800 MHz D/A with DUC, Virtex-7 FPGA - XMC
Model 71721
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-7 VXT FPGAs- GateXpress supports dynamic FPGA reconfiguration across PCIe- Three 200 MHz 16-bit A/Ds- Three multiband DDCs (digital downconverters)- Two 800 MHz 16-bit D/As- One DUC (digital upconverter)- Multiboard programmable beamformer- 4 GB of DDR3 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- VITA 42.0 XMC compatible with switched fabric interfaces- Optional LVDS connections to the Virtex-7 FPGA for custom I/O- 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
Selective Availability Anti-spoofing Module (SAASM) Test Platform
SimSAAS
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Comprehensive testing of SAASM for classified military applications. Military GPS receivers can use a Selective Availability Anti-Spoofing Module (SAASM) to enable decryption of precise positioning data. Selective Availability (SA) refers to a discontinued practice by the U.S. government to degrade the civil signal to prevent full accuracy. Since May 1, 2000, Selective Availability has not been operational.
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Product
3U cPCI I/O & Comm Board
75C3
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NAI’s 75C3 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 A/D channels and 28 Discrete I/O programmable channels, or with a reference supply. Using multiple DSPs, the enhanced motherboard enables higher processing power and dedicated pre-processing control for each module.
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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
SMA Male to SMA Male Cable, 50 Ohm, 30 cm
781846-01
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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
Extractometer
Dynatest
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*Extractometer used to measure and check the strength of fixing parts*Test carried out with a four-arm wheel or (and) the hydraulic pump with crank*Results on a pointer/digital indicator with peak value*Lightweight and easy to handle*Simple and quick setting up*Appropriate for on site testing*Packaged in a transport case (with a set of optional accessories)*Revolution counter for the crank*Delivered with a calibration results and the copy of the calibration report for the reference standard sensor
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Product
Electrolyser Test Stations
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Greenlight is the world''s leading supplier of test stands for both PEM and Alkaline electrolyser research. We have been manufacturing electrolyser testing equipment since 1996, and can provide references from major companies and research institutes worldwide.
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Product
33 GHz Optical Probe
DPO7OE1
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The DPO7OE1 is a 33 GHz, low noise, broad wavelength optical probe with optical reference receiver (ORR) performance for 28Gbaud PAM4 and PAM2 (NRZ). The DPO7OE1 can be used as a conventional Optical-to-Electrical (O/E) converter for wide-bandwidth optical signal acquisition. The DPO7OE1 provides an FC/PC or FC/APC optical connection for Tektronix DPO/MSO70000 C/DX/SX model oscilloscopes for high-speed optical signal verification.
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Product
Decoder Compliance Tests
Sarnoff Bitstreams™
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Using SRI’s Emmy® award-winning technology, the Sarnoff® Bitstreams™ suite is the de facto standard for systematically and unambiguously testing decoders against industry standards. The Bitstreams visual and automated decoder tests work in a matter of seconds and do not require a reference signal or specialized decoder.
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Product
SH68M-68M-EPM, Male 68 pin SCSI to 68 pin VHDCI, 0.3m
192288-0R3
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68-Pin Male VHDCI to 68-Pin Male VHDCI, Twisted Pair, Shielded Multifunction Cable - The SH68M-68M-EPM Cable, sometimes referred to as SHC68-C68-EPM, connects DAQ devices. The cable includes separate digital and analog sections, individually shielded twisted pairs for analog inputs, individually shielded analog outputs, and twisted pairs for critical digital I/O. The SH68M-68M-EPM Cable is offered in different lengths.
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Product
AE Valve Leakage Detector
SVLD1
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Through acquisition, processing, and calculation of acoustic emission signal of the valves, SVLD1 could generated root-mean-square voltage (RMS), average signal level (ASL) and power (P) parameters as which could judge the leakage. Meantime, you can pre-calibrate the leakage quantity for the specified valve, and calibration curve of parameters and leakage could be calculated by SVLD1, so as to give the valve leakage reference value during the test.
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Product
Universal Counter
U6220A
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The Picotest U6200A also provides great features including Frequency & Ratio (11Digits/Sec.), Time interval, Period (2.5 ns to 1000s), Duty Cycle, Pulse Width, Rise/Fall Time, Peak Volts (100 Hz~300 MHz), Phase, Totalize, Temperature Stability (< 1 PPM), Aging Rate (< 2 PPM per year), timebase reference channel (Figure-2) and complete Front-End Isolation. Moreover, it offers 20 memory locations (Figure-3) for storing frequently-used operations.
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Product
Infrared Thermometer Smart and Wireless Probe
805i
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The testo 805i Smart Probe is an infrared (IR) thermometer that provides non-contact temperature readings; great for checking breakers, motors, ducts, and registers from a distance. The measurement area is indicated by a circular laser pattern which asssures accurate targeting measurement. Use the testo Smart Probes App to take photos of objects and include the laser pattern and the temperature reading for your reference. Easily adjust the emissivity within the App and store data as files or share via text or email. The testo 805i works on smart devices with either Android or Apple operating systems.
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Product
SMB Female to BNC Female Cable, 50 Ohm, 61 cm (Quantity 8)
778415-01
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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.
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Product
Digital to Synchro Converters
DSP
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Computer Conversions Corporation
The DSP Series are high efficiency, AC Reference powered, Transformer Isolated, continuously updating “whole” Digital to Synchro Converters, designed for high performance Military and Industrial applications.
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Product
FPGA DSP Board Support Package
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Our Board Support Package helps customers get their hardware implementation underway as quickly as possible by providing reference designs, the Stellar IP FPGA development tool, and the 4FM GUI user interface for controlling and monitoring the hardware, as well as other supporting elements. The package comes with three main components: host tools, FPGA tools and diagnostic tools.
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Product
Embedded LO Capability
S97084B
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The S97084B tunes the analyzer’s receivers to the output frequency of the converter under test without the need for access to internal LOs or a common reference signal
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Product
Reference Solutions
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As you seek solutions to evolving test challenges, Keysight Reference Solutions provide the right combination of hardware, software, and measurement expertise through programming examples highly optimized for specific applications. Reference Solutions show you how to get the most out of your test equipment, helping you achieve half the time to insight.
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Product
Quantum & Metrology Instruments
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Beyond quantum sensors, Exail’s photonics solutions enable real applications in other quantum technology fields. They also enable precise control and transmission of the frequency, phase and amplitude of a laser light through fibered telecommunication links, for metrology applications. The true and deep understanding of Exail teams for the fundamental physics behind its technology explains the absolute quality of its time & frequency reference products.
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Product
Frequency Shaped Isotropic Electric Probes
PI-SH-FCC, PI-SH-ICNIRP
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An isotropic electric field probe with shaped frequency response meeting the ICNIRP or FCC RF safety standards for occupational and general public exposure limits (see the specified frequency ranges below). Meter readings are shown in % of the STD – standard reference level, eliminating the need to know the source frequency. Probe output is proportional to RF power density in the whole specified power range, producing the correct RF power measurements in single and multi-signal environments, typically present at multiple antenna sites.
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Product
T8090 Dual Absolute Leak Tester
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The Dual Absolute.The new Dual Absolute technology makes it possible to eliminate the disadvantages of a classic differential system, improve its advantages and renew an industry that has been standing still for decades. Thanks to the new Dual Absolute technology, ForTest has combined the simplicity of a classic absolute decay system with the precision and sensitivity of a differential system, bringing leak testing instruments to a level never seen before.The new algorithms and measurement hardware eliminate typical defects in a differential system, such as differences in stabilization between the test part and the reference sample.The new range of instruments is able to work in 3 different ways: Pure Differential, Dual Absolute and Central Zero.The new Dual Absolute technology is so powerful and reliable that ForTest has decided to stop developing the classic differential system.
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Product
4-Ch 500 MHz A/D with DDC & 4-Ch 800 MHz D/A with DUC, Virtex-7 FPGA - 6U VPX
Model 58751
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- Supports Xilinx Virtex-7 VXT FPGAs- GateXpress supports dynamic FPGA reconfiguration across PCIe- Two or four 500 MHz 12-bit A/Ds- Two or four multiband DDCs (digital downconverters)- 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- LVPECL clock/sync bus for multiboard synchronization- Optional LVDS connections to the Virtex-7 FPGA for custom I/O- Optional 400 MHz 14-bit A/Ds- 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
1100-Channel GSM Channelizer wih Quad A/D - XMC
Model 71663
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- Complete GSM channelizer with analog IF interface- Four 180 MHz 16-bit A/Ds- Two banks of 375 DDCs for upper GSM band- Two banks of 175 DDCs for lower GSM band- Sample clock synchronization to an external system reference- LVPECL clock/sync bus for multimodule synchronization- PCI Express Gen. 2 x8- RoHS Compliant Lead-Free Version Available- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Product
Radio / Conformity Tests
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The safe and effective use of radio frequencies (HF), referred to in English as radio frequencies (RF), must be checked for every device with integrated radio technology. The legal requirements for radio frequency (HF) tests vary depending on the use of the device (medical devices, automotive and telematics devices, cellular devices, etc.).
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Product
Low Cost Microwave Wideband Electro-absorption DFB Transmitter
MT62 (40KHz~33GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MT62 series microwave DML optical transmitter, are able to transmit 33G 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 as well as 10Gb/s and 60Gb/s high speed communication system.
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Product
Pt RTD Temperature Monitor
SIM923
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Stanford Research Systems, Inc.
The four channels in the SIM923 have independent, stable 1 mA current sources to provide sensor excitation. Sensor resistance is determined ratiometrically with a half-bridge circuit consisting of the sensor and an internal reference resistor.
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Product
RF & Microwave Modules And Instruments
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SHF Communication Technologies AG
In digital high speed test and measurement, a perfect clock signal is crucial for the generation of low jitter reference test signals. A SHF Synthesized Signal Generator (Synthesizer) used as a clock source can operate over several decades of frequency and is an essential part of any high speed test and measurement environment.
