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
PD Coupler
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Techimp Capacitive PD Couplers offer both the PD and sync signals references, allowing a thorough investigation of the signal originating inside the asset they are connected to.Techimp Couplers are individually tested according to the following international standards: IEC60358; IEC60694; IEC60270.
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Product
8-Channel 200 MHz A/D with DDC, Virtex-6 FPGA - 6U VPX
Model 58661
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Eight 200 MHz 16-bit A/Ds- Eight multiband DDCs (digital downconverters)- Two multiboard programmable beamformers- Up to 4 GB of DDR3 SDRAM; or: 64 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 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
Clock Oscillators
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A crystal clock oscillator (sometimes referred to as a 'Standard Packaged Crystal Oscillator' or SPXO) is a 'plug and play' quartz crystal. It combines a quartz crystal resonator with an oscillator circuit in a single package to provide a fully functioning stand-alone oscillator circuit.
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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
Keysight 40-Channel Armature Multiplexer for 34980A
34921A
Multiplexer Module
The Keysight 34921A module for the 34980A Multifunction Switch/Measure Unit is the most versatile multiplexer for general purpose scanning. It has low thermal offset characteristics and a built-in thermocouple reference on the terminal block, making it ideal for temperature measurements directly to the internal DMM. The dense, multi-function switching with 100 channel/second scan rates addresses a broad spectrum of data acquisition applications.
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Product
Handheld RF Spectrum Analyzer With 1MHz To 1.3 Or 2.7GHz Bandwidth Options
PSA Series 3
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1MHz to 1300MHz or 2700MHz frequency rangeResolution bandwidths of 300Hz to 10MHz 1:3:10-105dBm typical noise floor at -40dBm reference levelMeasurement in dBm or dBμV, mV or μWZero span mode with AM and FM audio demodulationTrace modes of normal, peak hold and trace averageLive, View (copy) and Reference traces in contrasting coloursTwin markers with readout of absolute & difference valuesSmart marker movement with selectable peak trackingFrequency counter with 10Hz ResolutionFrequency presets and independent state storageAuto-find automatically sets sweep parameters for the highest signal foundUnlimited storage for waveforms, set-ups and screensUser assignable file names, file stamping from real-time clockUSB interfaces for Flash drives and PC connectionComprehensive status and context sensitive help screensMore than 3 hours continuous operation from a chargeSmaller and lighter than other spectrum analyzers (weight only 0.58 kg)
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Product
Voltage References
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Analog Devices offers the widest selection of high performance voltage references in the industry. Our products range from high accuracy, low noise for high end industrial applications to general-purpose, low power for handheld, battery-powered applications. ADI is the ultimate source for design engineers looking for the perfect voltage reference that is cost effective, reliable, and dependable.
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Product
Rubidium Reference Oscillator
VCH-210
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The rubidium reference generator VCH-210 is designed to generate a highly stable reference and clock signal.
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Product
Ditert-Butyl Peroxide Residue Detector
DRK-GC-7890
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Shandong Drick Instruments Co., Ltd.
Melt-blown cloth has the characteristics of small pore size, high porosity and high filtration efficiency, and is the core material of mask production. This instrument refers to GB/T 30923-2014 plastic Polypropylene (PP) Melt-blown Special Material, suitable for polypropylene as the main raw material, with di-tert-butyl peroxide (DTBP) as the reducing agent, modified polypropylene melt-blown special material.
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Product
4 Digit API Panel Mounted
TA-902
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This is our latest API model and it comes packaged in a one-eight DIN size extruded aluminum enclosure. This size allows for direct replacement of other panel mounted API's for a more compact panel mount option. This unit has same features as our TA-900 unit and can be modified to work with non-standard square wave references as in theS-TEC 6443.
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Product
PXIe System Sync Module, 2 Port
M9032A
System Sync Module
The M9032A has a Soft Front Panel (SFP) that provides a graphical user interface to the system sync module. It allows the user to set up the most commonly used functionalities of the module. The SFP also gives you the ability to check the module's connection status, configure the reference clock and IO settings, and perform firmware udpates.
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Product
USB Digital Storage Oscilloscope, 1GS/s, 200MHz BW, 64M/channel
TS2212B
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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!*PC-based (USB2.0 interface)*USB powered*2 channels (stackable up to 12 channels)*1 GS/s real-time sampling*200 MHz bandwidth
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Product
Counters, Timers, And Ratemeters
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ORTEC offers the broadest range of nuclear counters, timers, rate meters and multichannel scalers. Counters simply count the number of input pulses received during the counting period. Timers count pulses generated by an internal or external clock and are used to measure elapsed time, or to establish the length of the counting period. Rate meters provide a readout of the pulse count rate. Multichannel scalers count the number of events that occur during a specified time interval, referred to as the dwell time, resulting in a time-histogram of counts. “Standalone” and programmable computer controlled versions are available.
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Product
Carrier Board Design and Software Verification Computer-on-Module Starter Kit
Starter Kit - ETX
Carrier Board
- ETX module of choice- CPU, Memory of choice- Thermal Solution (heatspreader, and heatsink) of choice- Reference Carrier Board- Schematics, Design Guide, and User Manuals- ADLINK USB Stick with Documentation, Software
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Product
PXI Synchronization Module
Module
PXI Synchronization Modules use the trigger bus, star trigger, and system reference clock features of PXI to implement advanced multi-device synchronization. By using PXI Synchronization Modules, you can improve measurement accuracy, implement advanced triggering schemes, and synchronize multiple devices to act as one for high-channel-count applications.
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Product
Conformance Calibration Standard Test Card for ISO/IEC Data Matrix and GS1 DataMatrix Symbol Verifiers
AI-CCS-DM-G Rev A
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This precision 2D barcode Conformance Calibration Standard Test Card is the first 2D test card to provide ALL 12 of the Primary Reference Symbols specified by ISO 15426-2 for barcode verifiers. They are sized from 0.5mm to 0.2mm so that all the symbol sizes specified in Annex A.3.1 can be tested. Symbols 1-4 are GS1 DataMatrix symbols, while symbols 5-12 are ISO/IEC Data Matrix symbols consistent with the ISO/IEC 16022 standard. The card also includes four calibrated reflectance patches.
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Product
Humidity calibration with humidity calibrator
HUMOR 20
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The role of humidity calibrations that are accurate, reproducible, and documentable is becoming more and more important. The humidity calibrator HUMOR 20 developed by E+E is the ideal reference instrument for these requirements and is traceable to international standards. The HUMOR 20 can be used in the humidity range of 10-95% RH both for monitoring cylindrical sensors and also for monitoring instruments with cubic dimensions.
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Product
Blackbody System
IR-508/301
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Infrared Systems Development Corp.
The IR-508 blackbody reference source is designed to provide infrared radiation as an ideal blackbody emitter. The output energy from the 0.25" cavity closely follows the theoretical maximum energy curve described by Max Planck's equation, and allows users to calibrate, align, and measure infrared devices and phenomena of all types.
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Product
NI Real-Time Test Cell Reference System
780590-35
test
VeriStand Full Development License with NI Standard Service , Include 1 Year SSP
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Product
Pressure Comparator (System D)
P Series
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AMETEK Sensors, Test & Calibration
The P-Series (System D) comparators are hydraulic screw pumps designed for easy, controlled, high pressure generation. Each comparator includes a 4 connection manifold, which can be used for the reference indicator, the device under test, a fine adjust, an isolation valve, or a fluid reservoir. The adjustable reference pressure port lets you set your reference gauge at the best viewing angle. Three models are available for hydraulic oil, water, or both.
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Product
Space Qualified Oscillators
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Our range of space qualified precise low noise rubidium oscillators. These highly accurate space qualified frequency references are used in Satellite Navigation Systems, Intelligence Reconnaissance Satellites, Military Communication Satellites, Deep-Space Survey and Space Stations
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Product
RTC Reference Temperature Calibrator
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AMETEK Sensors, Test & Calibration
Our most advanced and accurate portable temperature calibrator with the widest available temperature range. One of its great features is the patented DLC system for perfect temperature uniformity in the insert – even when calibrating large sensors or many sensors at a time.
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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
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
Industry-specific solutions
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Meinberg Funkuhren GmbH & Co. KG
Meinberg radio clocks not only deliver a highly accurate and highly stable clock, but as reference timers in our NTP servers are also able to ensure an exact system time in the network.
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Product
COM Express® Type 6 R3.1 Reference Carrier Board In ATX Form Factor
Express-BASE6 R3.1
Computer on Module
Express-BASE6 R3.1 is an ATX COM-Express Type 6 Basic / Compact size module reference carrier board based on PICMG COM-Express Revision 3.1. Together with the COM-Express Type 6 module of your choice and off the shelf add-on cards, you can quickly emulate the functionality of your desired end product for software development and hardware verification.
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Product
Canceler Series
Referenceless Canceler
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The ICE2004 is an 8-channel RF Interference canceler system that achieves 40 dB of attenuation without the need for cumbersome reference signals from local transmitters. It is a simple two-port RF assembly that covers the 30 to 512 MHz frequency range. The ICE2004 unit is placed directly between the receiver and its antenna. The ICE2004 enables the reception of low-level RF signals in the presence of up to 8 strong interferers as a result of its inherent low loss path for all non-canceled signals.
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Product
Hydrophone
RESON TC 4035
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The TC4035 is a miniature probe hydrophone specifi cally designed as a standard reference hydrophone for sound measurements in the frequency range 100 to 500kHz. The hydrophone incorporates a 10dB low-noise preamplifier, which includes an insert calibration circuit for convenient electrical testing of the hydrophone condition. The pre-amp has a drive capability for cable length up to 25 meters.
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Product
FPGA Mezzanine Card
FMC216
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The FMC216 is a 16-channel DAC FMC daughter card which is fully compliant with the VITA 57.1-2008 standard. It provides 16 D/A 16-bit 312.5Msps (2.5Gsps with x8 interpolation) channels which can be sampled by an internal clock source (optionally locked to an external reference) or an externally supplied sample clock. A trigger input for customized sampling control is also available.
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Product
Color Wheel Test Kits
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The color discs use a visual comparison method (color matching) to determine concentration. Simply add reagents to the sample and turn the wheel until the sample matches the reference color. The concentration is displayed in a window.





























