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
Trace-Level UV Fluorescence SO2 Analyzer
Model T100U
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Teledyne Advanced Pollution Instrumentation
The Model T100U Trace-level SO2 analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network. It uses the proven UV fluorescence principle, and is designed to allow ultra-sensitive SO2 measurements while still meeting the requirements for use as a US EPA compliance analyzer.The analyzer uses both the light and dark phases of the pulsed UV light source to continuously detect and correct for electronic noise, giving exceptionally stable and sensitive performance. A separate UV detector allows the instrument to continuously correct for variations in lamp intensity. 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.
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Product
Brake Fluid Boiling Point Tester With Bluetooth Printer
6513D
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Peaceful Thriving Enterprise Co Ltd
This tester can measure the boil point of the brake fluid. It can obtain the wet boiling temperature of the brake fluid for technician as a reference for maintenance. It can be the reference when technician is going to change the brake fluid.The testing data print by Bluetooth printer.
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Product
Decade Capacitor
GenRad 1423-A
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The GenRad 1423 decade capacitor is a versatile tool for calibration laboratories and production-line testing. With it a bridge can be standardized to an accuracy exceeded only by that of the highest quality, individually certified laboratory standards such as the GR 1404 Reference Standard Capacitors.Used with a limit bridge, such as the GR 1689 Digibridge, the 1423 facilities fast and accurate production-line measurements of arbitrary capacitancevalues with minimum setup time.
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Product
4/8-CH 12-Bit 1 MS/s Analog Output Multi-Function DAQ PCI Express Cards
DAQe-2500 Series
Data Acquisition Module
ADLINK DAQe-2500 series are high-speed and high-performance analog output multi-function DAQ PCI EXpress cards. The devices are able to update up to 8-CH, 12-bit analog outputs simultaneously at sustaining 1 MS/s. The reference sources and the output polarities are programmable on per channel basis, combining with the multiplying DAC architecture, ADLINK DAQe-2500 series DAQ cards can generate complex modulated analog signals. The hardware-based arbitrary waveform generation frees the CPU intervention even when all analog outputs are updating at full speed, and the lengths of waveforms are only limited by the system memory.
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Product
PH Meters
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Shenzhen Graigar Technology Co.,Ltd.
A pH Meter is a device used for potentiometrically measuring the pH, which is either the concentration or the activity of hydrogen ions, of an aqueous solution. It usually has a glass electrode plus a calomel reference electrode, or a combination electrode.
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Product
Thermal Resistance Spectroradiometeric System for LED
TRS-1000
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Thermal parameter is the key index to evaluate the quality of LED. Different temperature will have significant different effects on optical parameters, color parameters, electricity parameters and life of LED. Therefore, design and control of the thermal dissipation are the most important thing for the manufacturers and users. Referring to the relative international standard, TRS-1000 could conduct integration testing on optic, color, electricity and thermal, meanwhile record the changing curve of the parameters at real time.
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Product
MAX31856 Thermocouple Sensor Arduino Shield
SEN-30007-J
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Quad channel thermocouple Arduino shield based on the MAX31856 universal digital thermocouple interface IC. This is an exciting update of the MAX31855, with improvements in resolution (19 vs 14 bits), on-board temperature reference (6 vs 4 bits), and compensation (fully compensated vs nonlinear correction required). The MAX31856 is interfaced via 4-wire SPI with options for interrupt triggering. An LDO and a high-speed level shifter are included on ALL device pins to allow interfacing with to any Arduino - both 3.3V and 5.0V variants - without sacrificing device performance in any operating condition.
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Product
Machine Vision Camera - 2.3 MP, 41 FPS, Sony IMX249, Color
Blackfly USB3
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The Blackfly® camera line combines Sony CCD, Aptina, e2v, and Sharp sensors with a host of unique features. For FLIR area scan cameras with the latest sensors and most advanced feature sets, please refer to our Blackfly S and Oryx camera families.
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Product
Humidity Detectors
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A humidity detector, also referred to as a humidity meter or humidity gauge, is a device with a humidity sensor that measures the relative humidity in the air. PCE Instruments offers a number of humidity detector products including handheld humidity detector, data recording or data logging humidity detector, and combination or multifunction humidity detector devices that also measure parameters such as room or ambient temperature and atmospheric or barometric pressure. A humidity detector can measure relative humidity (RH) as a percentage (%) from 0 to 100 % RH, depending on the humidity measurement range of the specific model.Humidity is a key factor in everything from library and museum archival to agriculture, construction, manufacturing, transportation, warehousing, and heating, ventilation, air conditioning and refrigeration (HVACR). A relative humidity meter also is helpful in evaluating workers' heat stress risk on production floors and job sites. In addition, humidity plays an important role in the residential sector. If the humidity is too high in a private household, mold can grow. Mold creates a health hazard for anyone breathing the air in the home.
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Product
Rack Mounted Spectrum Analyzer
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Designed for the measurement and analysis of communications and broadcast carriers, making uplink, down- link, L-Band carriers, IF, and 10MHz reference signals easy to measure, monitor, and store.
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Product
Machine Vision Camera - 1.2 MP, 52 FPS, Aptina AR0134, Color
Blackfly GigE
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The Blackfly® camera line combines Sony CCD, Aptina, e2v, and Sharp sensors with a host of unique features. For FLIR area scan cameras with the latest sensors and most advanced feature sets, please refer to our Blackfly S and Oryx camera families.
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Product
pH 700 Benchtop pH Meter
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The easy-to-use, microprocessor-based pH 700 benchtop meter measures pH, mV, relative mV, and temperature. The large, dual-display LCD provides excellent visibility—even from a distance. Automatic temperature compensation (ATC) maintains reading accuracy even with fluctuating temperatures. Five-point pH calibration, with automatic buffer recognition for both USA (pH 1.68, 4.01, 7.00, 10.01, 12.45) and NIST (pH 1.68, 4.01, 6.86, 9.18, 12.45) pH buffers, makes for easy calibration no matter which requirement you need to meet. Meter features HOLD, ATC, selectable °F or °C measurement, recall of electrode slopand offset, and electrode diagnostics. The convenient pull-out quick reference card keeps procedures handy at all times. Meter accepts any pH or ORP electrodes with a BNC connector.
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Product
Optical Receiver Stress Test Solution
N4917B
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The N4917B software provides an automated standard compliant stressed receiver sensitivity test according to 100GBASE-LR4, ER4 and SR4 test specification. In order to do this kind of test, several test instruments such as a bit error ratio tester, digital sampling oscilloscope, optical reference transmitter and tunable laser source are required to operate together to achieve a compliant, repeatable optical stressed eye. This stressed eye is then fed to the receiver under test, where bit error ratio is measured under the stress conditions as defined in the standard.
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Product
Receiver-Synchronizer
VCH-311C
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The receiver-synchronizer VCH-311C is intended for use in synchronization networks as a primary reference source of highly stable synchronization signals of the first level of the hierarchy, periodically corrected in frequency according to the exact time signals (time scale) of the NKA KNS GLNASS / GPS
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Product
Standard Pattern Generator Board
BL-PG315-01
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The MicroImage PG315 pattern generator is designed for simple size and geometry reference applications. The PG315 will overlay one of five standard patterns including a centered cross line, a centered cross hair, a centered target style symbol, a dot grid (cross dot) array, a hatch grid (crosshatch) array.
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Product
NI-6581, 100 MHz, 54 Single-Ended-Channel Digital I/O Adapter Module
780565-01
Digital I/O Adapter
100 MHz, 54 Single-Ended-Channel Digital I/O Adapter Module for FlexRIO—The NI-6581 is a digital I/O adapter module that, when combined with a PXI FPGA Module for FlexRIO, creates a digital instrument for interfacing with 54 single-ended digital pins. You can use the NI-6581 to do real-time interfacing of standard protocols and implement customized protocols. The NI-6581 can operate sample digital waveforms at up to 100 MHz. It includes support for common transistor-to-transistor logic (TTL) voltage levels, or other voltage references can be sourced externally using a front panel connector.
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Product
8-Channel 250 MHz A/D with Multiband DDC, Kintex UltraScale FPGA - 6U VPX
Model 57132
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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- Eight 250 MHz 16-bit A/Ds- Eight wideband DDCs (digital downconverters)- 64 multiband DDCs- 5 GB of DDR4 SDRAM- Sample clock synchronization to an external system reference- LVPECL clock/sync bus for multiboard synchronization- PCI Express (Gen. 1, 2, &3) interface up to x8- Optional LVDS and gigabit serial connections to the FPGA for custom I/O- Ruggedized and conduction-cooled versions available
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Product
Reference plus Comparator or Amplifier
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Analog Devices reference plus comparator or amplifier products combine the excellent initial accuracy and low overtemperature drift performance of single function voltage references with comparators, buffer amplifiers, and current sense amplifiers. These products offer compact solutions for a broad range of applications such as battery monitoring, threshold detectors, window comparators, auto power-off circuits, and low dropout (LDO) regulators.
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Product
NTSC Test Signal Generators
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Provides an economical means for generating the most common SD analog composite video reference timing signals required to operate various SD analog composite video switchers, effects generators, VTRs/VCRs, cameras, video edit controllers, and other professional video equipment.
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Product
R6868, Low-Cost, Unshielded Ribbon Cable, 0.25 m
182482-0R25
Ribbon Cable
68-Pin Female to 68-Pin Female, 1 Ribbon Connection Ribbon Cable - The R68F-68F Cable, sometimes referred to as the R68-68 or RC68-68, is a flat ribbon cable that connects to 68-pin NI data acquisition or digital I/O devices. The R68F-68F Cable is offered in different lengths and with D-SUB or VHDCI front end connectors.
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Product
MCX Male to SMA Male Cable, 50 Ohm, 1 m
188377-01
Coaxial Cable
The MCX-SMA Coaxial Cable, sometimes referred to as MCX400 or MCX410, connects measurement and signal devices. NI offers this 50 ohm cable in different lengths.
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Product
Open Termination, 4-Terminal Pair
42090A
Terminator
The 42090A is an open termination and is 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 this standard.
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Product
Programmable Multifrequency Clock Synthesizer - 6U VPX
Model 5891
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- Simultaneous synthesis of up to 10 different clocks- 16 SMC clock outputs- Typical phase noise: -105 dBc/Hz @ 1 kHz offset- All clocks are phase-locked to input reference signal- Input reference frequency of 5 to 100 MHz- Eight 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 over the VPX backplane
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Product
8 Channels Thermocouple, LV A/D
TC1
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A thermocouple is a temperature-measuring device typically consisting of two dissimilar conductors that contact each other at one or more spots. It produces a voltage when the temperature of one of the spots differs from the reference temperature on other parts of the circuit. Thermocouple temperature sensors are widely used for measurement and control, and can also convert a temperature gradient into electricity.
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Product
Vector And Scalar Mixer/Converter Measurements
S97083B
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S97083B provides fully calibrated conversion gain/loss, relative phase, and absolute group delay measurements of mixers and converters without the need for reference or calibration mixers
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Product
Dual Band Block Up-Converter
DBUC Series
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*Connectorized Package *Wide Choice of Frequency Ranges *Dual Band *Integrated Filters *Gain Control *CAN, RS-232, I2C, or SPI Control *Internal / External References *Low Power Consumption *Low Phase Noise *Low Spurs
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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
VME Time & Frequency Processor
VME635091-SyncClock
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Brandywine Communications’ VME635091-SYNCCLOCK is a time and frequency processor module that provides precision time and frequency reference to the host computer and peripheral data acquisition systems. Time is acquired from time code signals, typically IRIG B. Time is displayed on the front panel (hours, minutes, seconds) via LED digits.
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Product
3-Channel 200 MHz A/D and 2-Channel 800 MHz D/A with Virtex-6 FPGA - 3U VPX
Model 52620
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Supports gigabit serial fabrics including PCI Express, Serial RapidIO and Xilinx Aurora- Three 200 MHz 16-bit A/Ds- One digital upconverter- Two 800 MHz 16-bit D/As- Up to 2 GB of DDR3 SDRAM or 32 MB of QDRII+ SRAM- Sample clock synchronization to an external system reference- LVPECL clock/sync bus for multimodule synchronization- Optional LVDS connections to the Virtex-6 FPGA for custom I/O- 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
Weather Radar Receiver
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This is an example of a custom four-channel C-Band Receiver uses a single conversion technique to translate incoming 5.56 GHz radar signals to a 60 MHz IF. The Receiver is divided into two polarization sections, each with a dedicated channel for the received signal and a second channel for a reference signal originatingfrom the transmitter. There are two identical circuits in the Receiver, one reserved for vertically polarized signals, and the second for horizontal signals.
