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
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
Cyber Security Testing Services
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Cyber security testing is often also referred to as pen testing or penetration testing. Such tests validate the cyber security defences of your applications, network infrastructure and even your team members. Our cyber security testers are highly trained and certified ethical hackers.
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Product
4-Channel DAQ Module
FMC144
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Sundance Multiprocessor Technology Ltd.
The FMC144 is an analog-to-digital (A/D) and digital-to-analog (D/A) FMC daughter card that provides four 16-bit A/D channels at 370MSPS and four 16-bit D/A channels at 2.5GSPS which can be clocked by an internal clock source (optionally locked to an external reference) or by an externally-supplied sample clock.
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Product
Waveguide Amplifiers
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VDI offers waveguide amplifiers for various applications. Waveguide amplifiers are able to boost a small input RF signal to a large output RF signal. For sample data on waveguide amplifiers, please refer to the Waveguide Amplifier Product Manual (also located under Resources). Please contact VDI for more information.
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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
FOCL Reference Signal Modem
VCH-607
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FOCL reference signal modem VCH-607 is designed to receive and transmit electrical signals with a nominal frequency of 100 MHz through a fiber-optic system and generate electrical signals with a nominal frequency of 5 and 10 MHz, coherent with the input signal. Reception and transmission through the FOCL is provided using a pair of modems: one is configured as a Transmitter and is installed at the end of the FOCL where the signal source is located, the second is configured as a Receiver and is installed at the opposite end of the FOCL.
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Product
RF Milliwatt Meters
Type NDB-2 and NDB-3
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National RF’s Type NDB-2 and NDB-3 RF Milliwatt Meters are affordable pieces of test equipment for both the RF laboratory and the home experimenter. Both provide a digital reading of RF power in dB reference 1 milliwatt of power into a 50 ohm load (i.e. 0 dBm). The circuitry consists of a low noise logarithmic amplifier that drives a digital A/D converting meter circuit. The lowest power levels that can be read are about –73 dBm (approximately 40 microvolts or .00000003 milliwatts). The maximum power input should not exceed 10 milliwatts (+10 dBm or .010 watts) when inputed without attenuation. An internal attenuator is provided and described in the next section.
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Product
Capacitance Standard Set, 0.01uF To 10uF
16380C
Capacitance Meter
The 16380C is a standard capacitor set consisting of three precision capacitors - 0.01uF (16385A), 0.1uF (16386A), 1uF (16387A),and an optional 10uF (16388A). These capacitors are primarily used for performance tests of Keysight's 4-terminal pair LCR meters and impedance analyzers. Refer to the instrument's operation/service manual for the method of using these standards.
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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
2-Ch 1 GHz A/D and D/A with Virtex-7 FPGA - 6U VPX
Model 58730
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- Supports Xilinx Virtex-7 VXT FPGAs- GateXpress supports dynamic FPGA reconfiguration across PCIe- One or two 1 GHz 12-bit A/D- One or two 1 GHz 16-bit D/A- 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- Dual-µSync clock/sync bus for multiboard synchronization- Optional user-configurable gigabit serial interface- Optional LVDS connections to the Virtex-7 FPGA for custom I/O- Ruggedized and conduction-cooled versions available- Supports GateXpress® FPGA-PCIe Configuration Manager- Synchronize up to twelve modules with Model 9192 System Synchronization and Distribution Amplifier- 1U Rack-mount
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Product
Scanning Probe Microscopy/Atomic Force Microscopy (SPM/AFM Analysis)
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Rocky Mountain Laboratories, Inc.
Scanning probe microscopy (SPM) refers to a family of measurement techniques that utilize a scanning probe. The most common measurement is Atomic Force Microscopy (AFM Analysis), which measures surface topography. Imaged areas can be from the nm scale to as large as 100 µm X 100 µm. Heights and depths of features can be measuredand many surface roughness parameters, e.g Ra, can be calculated. 3-D images can also be produced for dramatic data presentation. Magnetic and electrical response can also be measured with SPM.
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Product
Hydrogen Frequency & Time Standard
CH1-1033
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The hydrogen frequency and time standard Ch1-1033 is designed for precision storage and reproduction of the size of frequency and time units as part of measures and reference complexes. Main areas of application: – public service of time and frequency; – ground control complexes of radio navigation systems; – radio interferometry with extra long base.
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Product
Color Sensors
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Leuze electronic GmbH + Co. KG
Color sensors detect colors by comparing the detected color value with a previously stored reference value. They are the right solution whenever the color of an object or marking can serve as a sorting or inspection criteria. Depending on the configuration and specified tolerance values of the system, the result is output as a switching signal.
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Product
8-Ch 1.25 GHz, 16-bit D/A with DUC, Extended Interpolation, Virtex-6 - 6U VPX
Model 58671
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Eight 1.25 GHz 16-bit D/As- Eight digital upconverters- Extended interpolation range from 2x to 1,048,576x- Programmable output levels- 250 MHz max. output bandwidth- 4 GB of DDR3 SDRAM- PCI Express (Gen. 1 & 2) interface up to x8- Sample clock synchronization to an external system reference- Quad µSync 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 twelve modules with Model 9192 System Synchronization and Distribution Amplifier- 1U Rack-mount
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Product
Wire Harness Tester
Panther4HT Master- Slave DSU
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Qmax Test Technologies Pvt. Ltd.
The Master- Slave DSU based Panther4HT Wire Harness tester is designed for testing and verifying electrical connections in a cable, harness, backplane or any other wired assembly. It offers unique Qmax MASTER - Slave concept and SATELLITE UNIT Options to avoid looping back of cable to the ATE. All Satellite Units communicates the measurements through LAN interface which is very useful for on-board applications in Aircrafts / Ships and similar applications where large cable looms are used. This innovative concept will eliminate the long adapter cables and hence storing, maintaining and re work of these kind of cables are avoided. Furthermore single Master Controller Unit (MCU) is used to control not only all the satellite units , but also communicate with all satellite units through Ethernet Communication port. A single reference Cable is used to link the all the satellite units with the Master Controller in controlled loop manner is a value add to the product.
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Product
Femtosecond Pump - Probe Transient Absorption System
Hatteras
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The Hatteras is first professional system on the market for ultra fast transient absorption pump - probe spectroscopy. Two linear image sensors (multichannel detection) or two photodiodes (singlechannel detection) are placed behind an imaging spectrometer to measure probe and reference pulses, originating from a femtosecond white light (continuum) generator or from an optical parametric amplifier.
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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
3-Channel 200 MHz A/D and 2-Channel 800 MHz D/A with Virtex-7 FPGA - XMC
Model 71720
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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- One digital upconverter- Two 800 MHz 16-bit D/As- 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 swtiched fabric interfaces- Optional user configurable gigabit serial interface- 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
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
USB Hi-Res Digital Storage Oscilloscope, 1GS/s, 200MHz BW, 64M/channel
Acute TS2212H
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*1. Up to 7x faster H/W initial time!*2. An additional reference clock input port to synchronize multiple-stacked DSOs!*3. TS2212H has twice the vertical resolution at 16-bits maximum!*PC-based (USB2.0 interface)*USB powered
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Product
23KHZ Reference Measurement Microphone
M23R
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The M23R is a precision engineered 23kHz omnidirectional measurement microphone ideally suited for acoustical measurements including loudspeaker design and quality control, sound system setup and troubleshooting, room acoustics, or any application where an accurate free-field measurement microphone is required.
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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
1-Channel DAQ Module
FMC160
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Sundance Multiprocessor Technology Ltd.
The FMC160 provides one 12-bit A/D channel at 3.6Gsps and one 14-bit D/A channel at 5.6Gsps (2.8Gsps direct RF synthesis) clocked by either an internal clock source (optionally locked to an external reference) or an externally supplied sample clock. In addition, a trigger input for customized sampling control is available to users. The FMC160 daughter card is mechanically and electrically compliant to the FMC standard (ANSI/VITA 57.1).
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Product
ACCUplace Dot Patterns
AP-D Series
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All machine vision lenses will show some type of distortion. Minimizing or correcting that distortion is crucial in most applications. The ACCUplace Dot Patterns target is designed to check, verify, or quantify barrel distortion in vision systems, alignment between multiple optical systems, and can calibrate instruments with both vision and motion systems. The indexed columns and rows of dot features provide reference points that make alignment and distortion detection simple and straightforward. The AP-D is offered on four standard materials; Glass (CG) Opal (OP) Photopaper (RM) and Film (TM).
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Product
Dual-Band RF Tuner and 4-Ch 400 MHz A/D with Kintex UltraScale FPGA - 6U VPX
Model 58891
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- Jade Xilinx Kintex UltraScale FPGA Products and Navigator Design Suite Software Video- Jade Xilinx Kintex UltraScale FPGA Family Brochure- Accepts RF signals from 925 MHz to 2175 MHz- Programmable LNA handles L-Band input signal levels from -50 dBm to + 10 dBm- Programmable analog downconverter provides IF or I+Q baseband signals at frequencies up to 123 MHz- Four 400 MHz 12-bit A/Ds digitize IF or I+Q signals synchronously- Four FPGA-based multiband DDCs (digital downconverters)- Two Xilinx® Kintex® UltraScale™ FPGA- 10 GB of DDR4 SDRAM- Sample clock synchronization to an external system reference- PCI Express interface (Gen. 1, 2 & 3) up to x8- Clock/sync bus for multimodule synchronization- Optional LVDS and gigabit serial connections for FPGA for custom I/O- Navigator BSP® for software development- Navigator FDK® for custom IP development- Spark® fully-integrated development system- Free lifetime applications support- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Product
0.35° Accuracy Roll & Pitch Surface Dynamic Motion Sensor
DMS-535RP
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The DMS range of motion sensors is designed specifically for the motion measurement needs of the marine industry. Whether it is achieving IHO standard survey from any size of vessel, or providing safety critical monitoring of offshore platforms, large vessels, helicopter landing decks, cranes and positioning systems, the DMS provides accurate motion measurement in all sea conditions. Incorporating an enhanced external velocity and heading aiding algorithm for improved accuracy during dynamic manoeuvres, the solid state angular rate sensors offer reliability in the highest performing vertical reference units ever produced by TSS.
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Product
Collimators
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Collimators are optical systems used to imitate standard targets placed in "optical infinity" (very long distance). The collimators are used for projection of image of reference targets into direction of tested imagers. According to type of optical elements used in design, collimators are divided into two groups: reflective collimators and refractive collimators. Reflective collimators due to their wide spectral range are almost exclusively used in systems for testing thermal imagers and are also preferable in systems testing TV cameras, SWIR imagers, laser systems or multi-sensor surveillance systems. Refractive collimators are mostly used in systems for testing night vision devices or TV cameras working in visible/near infrared range.
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Product
IRIG B to NTP/SNTP Converter
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Signals & Systems India Private Limited
IRIG B TO NTP/SNTP CONVERTER – SPC-INS-1010 is a compact DIN rail mountable protocol converter unit which synchronizes and maintains the timing and frequency requirement of power and process industry equipment using IRIG-B signal obtained from GPS receiver. It provides nanosecond accuracy when external time references are not available. It has the storage facility to store the system log file. It delivers NTP, SNTP, PFC-Pulse, RS232 & RS485 outputs. The system enables configuration and monitoring through Web-based application. It supports a wide range of power supply input either 90V-260V AC/DC or 18-36VDC or 36V-72VDC.
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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.
