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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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300nA NanoPower Voltage References
ISL21080
The ISL21080 analog voltage references feature low supply voltage operation at ultra-low 310nA typ, 1.5µA max operating current. Additionally, the ISL21080 family features guaranteed initial accuracy as low as ±0.2% and 50ppm/°C temperature coefficient.
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Shunt Voltage References
Analog Devices offers a broad line of shunt precision voltage references that combine excellent accuracy and temperature stability with low noise and small packages. These devices operate in a manner that is functionally equivalent to a Zener diode. The bias current must be set higher than the sum of the maximum quiescent current of the voltage reference and the maximum expected load current. Since shunt voltage references are typically biased with a resistor, the voltage reference can operate on a wide range of input voltages.
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Voltage References
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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Micropower Voltage References
Analog Devices offers a broad line precision micropower voltage references with extremely low quiescent currents (series references) or minimum shunt currents (shunt voltage references). All of our precision voltage references offer excellent initial accuracy and low temperature drift over time and temperature. Our Reference Plus products combine precision voltage references with comparators or amplifiers.
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Mid-Range Gas Filter Correlation CO Analyzer
Model T300M
Teledyne Advanced Pollution Instrumentation
The Model T300M CO analyzer measures low to mid ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high-energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 2.56 meters.
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OnyxFX FlexorSet 8-Channel 250 MHz A/D - 3U VPX
Model 5973-316
- Supports Xilinx Virtex-7 VXT FPGA- GateXpress supports dynamic FPGA reconfiguration across PCIeEight 250 MHz 16-bit A/Ds- 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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Gas Filter Correlation Carbon Monoxide Analyzer
Model T300
The Model T300 measures low ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 14 meters. The energy loss through the sample cell is compared with the span reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing extreme sensitivity. 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, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.The Model T300 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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Chlorophyll Concentration
Linear OutputThe Apogee chlorophyll concentration meter is calibrated to measure chlorophyll concentration in leaves with units of mol of chlorophyll per m2. This eliminates the problems with relative indexes of chlorophyll concentration.For reference and comparison purposes, the Apogee meter also outputs relative units [CCI or SPAD] if desired.For details see: Parry, C., Blonquist Jr., J.M., & Bugbee, B. 2014. In situ measurement of leaf chlorophyll concentration: analysis of the optical/absolute relationship. Plant, Cell and Environment 37:2508-2502.
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Handheld RF Spectrum Analyzer With 1MHz To 1.3 Or 2.7GHz Bandwidth Options
PSA Series 3
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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Board Cameras
e-CAM & See3CAM Series of Camera Boards. e-CAM camera board is e-con's reference design featuring a board camera interfaced to a processor on its high speed CMOS interface. Board cameras are available for Jetson Developer kits and NXP i.MX6 boards. For processors, that don't have the Camera ISP pipeline, e-con Systems provides the complete software stack for raw image sensors. The software stack has a wide variety of features ranging from color correction, gamma correction, dead pixel correction, color space conversion, sharpen filter etc.
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400 MHz to 4.4 GHz, GPS-Disciplined OCXO, Reconfigurable USRP Software Defined Radio Device
783927-01
400 MHz to 4.4 GHz, GPS-Disciplined OCXO, Reconfigurable USRP Software Defined Radio Device - The USRP-2952 provides an integrated hardware and software solution for rapidly prototyping high-performance wireless communication systems. Built on the LabVIEW reconfigurable I/O (RIO) architecture, USRP RIO delivers an integrated hardware and software solution, so researchers can prototype faster and shorten time to results. You can prototype a range of advanced research applications that include multiple input, multiple output (MIMO); synchronization of heterogeneous networks; LTE relaying; RF compressive sampling; spectrum sensing; cognitive radio; beamforming; and direction finding. The USRP-2952 is equipped with a GPS-disciplined 10 MHz oven-controlled crystal oscillator (OCXO) reference clock. GPS disciplining delivers improved frequency accuracy and synchronization capabilities.
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8-Channel VME Strain Gauge/Weighing Module
V380
The V380 is a VME/VXI compatible eight-channel strain-gauge signal conditioner which is optimized for load-cell weighing applications. The module includes tare (zero reference), DSP-based high-order filtering, averaging, triggered weighing, and other functions not commonly available in conventional strain-gauge signal conditioners.
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200' Laser Distance Meter
2281-20
Milwaukee's Laser Distance Meter is a heavy duty distance measuring tool for professional, commercial and industrial applications. The 2281-20 can easily measure distance up to 200' with 1/16" accuracy. The simple user interface makes Laser Distance Meter easy to use. The end bracket allows for accurate measuring from corners and edges. Easily add and subtract values and use five different functions to calculate length, area, volume, indirect measurements, and stake out equations. The 2281-20 includes meter case, two (2) AAA batteries, quick reference guide, manual and is covered by the Milwaukee 5-Year Warranty.
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Low Cost Microwave Wideband Electro-absorption DFB Transmitter (without RF Amp)
MT60 (40KHz~33GHz)
Hangzhou Huatai Optic Tech. Co., Ltd.
MT60 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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USRP-2974, 10 MHz to 6 GHz, x86 Processor, GPS-Disciplined OCXO, USRP Software Defined Radio Stand-Alone Device
785606-01
The USRP-2974 is built on the LabVIEW reconfigurable I/O (RIO) architecture with an onboard Intel Core i7 processor running the NI Linux Real-Time OS. The USRP-2974 is a USRP Software Defined Radio Stand-Alone Device, meaning that you can target the onboard processor with LabVIEW Communications System Design Suite to deterministically perform processing. The USRP-2974 is also equipped with a GPS-disciplined 10 MHz oven-controlled crystal oscillator (OCXO) Reference Clock. You can prototype a range of advanced research applications that include stand-alone LTE or 802.11 device emulation; Medium Access Control (MAC) algorithm development; multiple input, multiple output (MIMO); heterogeneous networks; LTE relaying; RF compressive sampling; spectrum sensing; cognitive radio; beamforming; and direction finding. The registered trademark Linux® is used pursuant to a sublicense from LMI, the exclusive licensee of Linus Torvalds, owner of the mark on a worldwide basis.
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Cable Assembly, 200-Pin LFH, Male (Male Screwlocks) to 4x50-Pin D-Type Male, 1m
40-971B-200D-1m-MM
This male rear exit to D-type 1m long cable assembly is suited for direct connection to all Pickering Interfaces products using the 200-Pin LFH connector. It is constructed from 4 bundles of 50-wire round/flat ribbon cables, terminated with 50-pin male D-type connectors. The connector can be secured to the product by screwlocks. The cable assembly can be used with Pickering's 50-Pin D-Type connector blocks (refer to 90-005D). Each of the four D-type cables is numbered to allow identification.
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Gas Filters
WITT gas filters enable the finest filtering of impurities in technical gases such as acetylene, argon., oxygen, hydrogen, methane, carbon dioxide, helium, compressed air and ethylene. They thus protect downstream equipment and systems. Some gas filters are also referred to as gas cleaners.
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Optical Transimpedance Amplifiers
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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3-Ch 200 MHz A/D with DDC & 2-Ch 800 MHz D/A with DUC, Kintex UltraScale - 6UVPX
Model 57821
- 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- Three 200 MHz 16-bit A/Ds- Three 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)- Ruggedized and conduction-cooled versions available- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Reach-In Vacuum Climatic Test Chamber
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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AC Reference Generators
SR23
Computer Conversions Corporation
The SR23 Series are miniature, low cost AC reference generators designed to supply 26 or 115 volt excitation (2-115VAC) to synchros or resolvers in military and industrial control applications. They accept +/-15V DC or +/-12V DC power inputs 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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Programmable Multifrequency Clock Synthesizer - PMC
Model 7191
- Simultaneous synthesis of up to up to 5 different clocks- Eight SMC clock outputs- Ideal for A/D and D/A converter clock sources- Typical phase noise: -105 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 or 100 MHz- Four programmable VCXOs with 32-bit tuning resolution- Output clocks of 1, 2, 4, 8, or 16 submultiples of VCXO base frequencies- Output clock frequencies between 50 and 700 MHz- Control and status via PCI bus interface
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L-Band RF Tuner and 2-Channel 500 MHz A/D with Virtex-7 FPGA - XMC
Model 71791
- 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- Two 500 MHz 12-bit A/Ds digitize IF or I+Q signals synchronously; optional: 400 MHz 14-bit A/Ds- Two FPGA-based multiband digital downconverters- Xilinx Virtex-7 VX330T or VX690T FPGAs- 4 GB of DDR3 SDRAM- Sample clock synchronization to an external system reference- PCI Express (Gen. 1, 2 & 3) interface, up to x8- Clock/sync bus for multimodule synchronization- VITA 42.0 XMC compatible with switched fabric interfaces- Optional user-configurable gigabit serial interface- Optional LVDS connections to the Virtex-7 FPGA for custom I/O
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Antennas for 60 GHz
Pasternack antennas for 60 GHz applications, also referred to as 60 GHz gain horn antennas or horn antennas, are broadband passive devices to direct a beam radio waves at a precise frequency. Antennas for 60 GHz from Pasternack use either a UG-385/U or a UG-387/U flange size.
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Dual Channel High Voltage Linear Amplifier
F20AD
This unit contains two independent F20A amplifiers that share common ground reference and power supply.
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4-Channel 200 MHz A/D with Multiband DDCs, Kintex UltraScale FPGA - 3U VPX
Model 52862
- 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- Four 200 MHz 16-bit A/Ds- Four wideband DDCs and- 32 multiband DDCs (digital downconverters)- 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 x4- 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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Horizontal Calibration Instruments (Lab)
Labconcept Nano
The Labconcept Nano is a new reference in the field of dimensional metrology. It integrates 40 years of knowledge and continuous improvement. It is a remarkable instrument for all measuring tasks that require extremely high accuracy.
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260' Laser Distance Meter
2282-20
Milwaukee's Laser Distance Meter is a heavy duty distance measuring tool for professional, commercial and industrial applications. The 2282-20 can easily measure distance up to 260' with 1/16" accuracy. The simple user interface makes Laser Distance Meter easy to use. Smart Horizontal Mode provides the most accurate measurements by factoring in the angle the unit is being held. The end bracket allows for accurate measuring from corners and edges. Easily add and subtract values and use seven different functions to calculate length, area, volume, indirect measurements, stake out, timer and Smart Horizontal equations. The 2281-20 includes meter case, two (2) AAA batteries, quick reference guide, CD manual and is covered by the Milwaukee 5-Year Warranty.
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2-Channel 200 MHz A/D with 766 DDCs, Kintex UltraScale FPGA - 6U VPX
Model 57865
- Jade Xilinx Kintex UltraScale FPGA Products and Navigator Design Suite Software Video- Jade Xilinx Kintex UltraScale FPGA Family Brochure- Complete software radio receiver solution for extremely high-channel-count applications- Uses Xilinx Kintex UltraScale KU035 FPGAs- Two 200 MHz 16-bit A/Ds- Four wideband DDCs (digital downconverters)- Up to 762 narrowband DDCs- Sample clock generation and synchronization to an external system reference- Ruggedized and conduction-cooled versions available- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Phase Detectors
Macom Technology Solutions Holdings Inc.
MACOM's MSPD Series Integrates an SRD reference frequency multiplier, coupling capacitors and a Schottky diode microwave sampler / phase detector in a 0.075” by 0.100” hybrid. They are used to phase lock microwave oscillators up to 22 GHz to a much lower reference frequency by deriving a locking voltage from the sampled RF and the multiplied reference.
