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
Radiometer Analytical Probes
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Radiometer Analytical develops and manufactures an extensive range of electrochemical electrodes - combined pH, glass or reference electrodes, metal electrodes, ion-selective electrodes and conductivity cells - for every application and budget.
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Product
0.25° Accuracy Roll & Pitch Surface Dynamic Motion Sensor
DMS-525RP
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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
Calibration
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During the recent years we have made scientific investigations regarding calibration procedures, which have been published and integrated in the European and International standards. The calibration of antennas and field probes in Seibersdorf is done on the reference open area test site, in three different TEM-Cells and in the fully anechoic chamber. The open area test site is one of the best in Europe. Since 1996 we are the accredited calibration laboratory according to Akkreditierung Austria 0612 for antennas and field probes.
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Product
Chlorophyll Concentration
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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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Product
SMA Male to SMA Male Cable, 50 Ohm, 38.1 cm
763444-01
Coaxial Cable
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
Quad RF Driver
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The Quad RF Driver contains four independent RF channels, each with an RF synthesizer, variable attenuator, and 1W power amplifier. The RF signal can originate from either the internal synthesizer or an external source via SMA input. All channels have independent frequency, phase, and gain settings and can be operated in one of two modes. The “Wideband” mode operates from 35MHz to 2GHz with a 3.472KHz resolution; over this range the frequency roll-off is approximately 0.5dB/100MHz. “Int-N Phase Adjust” mode allows the user to set and maintain a fixed phase relationship between all four channels. This mode is designed to operate between 300 and 460MHz with a 2MHz resolution. Two additional inputs are provided for an external frequency reference and digital modulation.
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Product
Three-phase Fully Automatic Test System
TS33
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Calmet Smart Calibration Devices
The Calmet TS33 portable test system consists of a three-phase reference meter of accuracy class 0.02%, 0.04% or 0.1% and an integrated three-phase current and voltage source up to 3x120A/600V. The TS33 is designed for analysis of complete metering installations and local mains conditions.
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Product
RS485 Null-Modem Cable, DB-9 Female to DB-9 Female, 2m
183283-02
Serial Cable
9-Pin Female DB-9 to 9-Pin Female DB-9 Serial Cable - The 9F-9F Serial Cable, sometimes referred to as GPIB Serial Cable, connects and controls GPIB devices using RS232 and RS485 serial ports. The 9F-9F Serial Cable is offered in different lengths.
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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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Perten Falling Number 1000
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Often referred to as the Hagberg method, The New Falling Number 1000 system measures the alpha-amylase enzyme activity to detect sprout damage. Approved method by international standards - AACC, ICC, ISO.
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Product
SP2T RF Pin Diode Switches To 18 GHz
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Pulsar Microwave's 2-way switches are available in absorptive and reflective designs from 20 MHz to 18 GHz. They are also referred to as single pole, double throw and abbreviated SPDT or SP2T. These switches have a typical VSWR performance of 1.6:1 or better and input power handling of 200 milliwatts maximum. Switching time is 100 nanoseconds, and isolation of 60 dB or greater for most models. Supply voltages are +5V and -5V, with TTL logic control voltage of 0 to 5 volts.Both absorptive and reflective SPDT switches are packaged into Pulsar Microwave's SW2 outline. Configuration is standard with SMA female connectors. Voltage is applied with wire wrap feed thru terminals. The housing serves as electrical ground, and two turret terminals are installed for wiring.
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Product
L-Band RF Tuner and 2-Channel 200 MHz A/D with Virtex-6 FPGA - XMC
Model 71690
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- Accepts RF Signals from 925 MHz to 2175 MHz- Programmable LNA boosts LNB (low noise block) antenna signal - levels with up to 60 dB gain- Programmable analog downconverter to I + Q baseband signals - 4 to 40 MHz bandwidth- Two 200 MHz 16-bit A/Ds digitize the I + Q signals synchronously- Supports Xilinx Virtex-6 LXT and SXT FPGA- 2 GB DDR3 SDRAM or 32 MB of QDRII+ SRAM- Sample clock synchronization to an external system reference- PCI Express (Gen. 1 & 2) 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-6 FPGA for custom I/O- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
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Product
Mid-Range Gas Filter Correlation Carbon Dioxide Analyzer
Model T360M
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The Model T360M CO2 analyzer measures Carbon Dioxide 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 CO2 filled chamber and a chamber with no CO2 present. The light path then travels through the sample cell, which has a folded path of 1.28 meters.The energy loss through the sample cell is compared with the 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 excellent performance over a wide concentration range, making this instrument an ideal choice for CO2 reporting requirements associated with dilution CEMS.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 T360M 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
Industrial Shock Absorbers
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ACE industrial shock absorbers work hard. Their application means moving loads are evenly decelerated over the full stroke. The result: the lowest braking force and shortest braking time. The MAGNUM series from ACE is viewed as the reference standard for medium-sized damping technology.
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Board Cameras
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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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Product
8-Channel 200 MHz A/D with DDC, Kintex UltraScale FPGA - 6U VPX
Model 58861
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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 200 MHz 16-bit A/Ds- Eight multiband DDCs (digital downconverters)- 10 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- 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
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
High Speed Device & Flash Programmer
JT 2147 QuadPOD
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The JT 2147 QuadPOD high speed device programmer and flash programmer comprises JT 2148 transceiver and four independent, programmable JT 2149 TAP PODs and provides signal conditioning for the DataBlaster series of boundary-scan controllers. Used for gang, parallel, fast testing / Programming of devices.TAP pods can be housed integrally within the transceiver or they can be detached and reconnected via the (optional) one meter extension cable. The JT 2148 transceiver is available in standard (/10) or industrial (/13) variants. The /13 variant includes a SCSI cable splitter to allow system integrators to use flat ribbon cables into the transceiver itself which often simplifies fixture building.A fixture-embedded variant of the JT 2147 is available as part reference JT 2147/FXT. This unit integrates the function of the transceiver and four pod onto a single assembly. This variant can also support 64 DIOS channels and SCIL functions (see more images below for a picture of the JT 2147/FXT).
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Product
Primary Standard Capacitors
GenRad 1404 Series
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The GenRad 1404 Series standard capacitors are the standard of choice in metrology labs, and still used today by standards bodies around the world. These capacitors have been designed as primary reference standards of capacitance with which working standards can be compared.
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Product
Programmable Voltage Reference Plug-In
ProDAQ 3202
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The ProDAQ 3202 voltage reference card is used in the ProDAQ 3180 ultra-performance motherboards and LXI function card carriers. The ProDAQ 3202 voltage reference card is plugged directly onto the motherboard or carrier and can distribute the reference voltage to all ProDAQ function cards via two signal lines. This allows the distribution as a differential signal to overcome possible noise pick-up.
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Calibration Standards, Calibration Services
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ISO 17015 traceable calibrated reference lamps, detectors and reflectors for the calibration and adjustment of sensors and measurement devices for light, optical radiation and light reflection. We offer as well many ISO 17025 calibration services.
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Product
DC to LVDT and DC to RVDT Converters
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Computer Conversions Corporation
The SLVT Series are complete, low profile, continuously updating, single channel, Isolated Digital to LVDT Converters used to simulate the output of LVDT's (Linear velocity displacement transducers), RVDT's (Rotary...) and other phase/voltage sensitive AC devices. They provide a very precise linear AC voltage output proportionate to the magnitude of the input data, in or out of phase respective of the AC reference input as determined by the MSB of the input word (offset binary format).
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Product
L-Band RF Tuner and 2-Channel 500 MHz A/D with Virtex-7 FPGA - 3U VPX
Model 52791
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- 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 x4- Clock/sync bus for multimodule synchronization- 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
Quad QSFP28/QSFP+ FMC+ Module
FPGA Board
iWave’s QSFP28/QSFP+ 2×1 Stacked FMC+ HSPC Module is designed to meet VITA 57.4 FMC+ Standard. This FMC+ Module is supported by two stacked QSFP28/QSFP+ ports(Upto400G) with 4-Bit Silicon Labs programmable clock synthesizer (default = 156.25Mhz). A flexible reference clock for on the QSFP28/QSFP+ 2×1 Stacked FMC+ Module is fully programmable over the 0.16 to 710 MHz range through I2C. Each QSFP28/QSFP+ ports are directly connected to four multi-gigabit serial transceivers banks of Vita 57.4 compliant carrier Board.
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Product
Double-Balanced Mixer, 18 to 46 Ghz
MAMX-011054
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Macom Technology Solutions Holdings Inc.
MAMX-011054 is a double-balanced passive diode mixer housed in a 3 mm, 12-lead AQFN package. The mixer offers low conversion loss, high linearity and a wide IF bandwidth. The double-balanced circuit configuration provides excellent port isolation while internal 50 Ω matching simplifies its application. MAMX-011054 is also available in die form. Refer to datasheet MAMX-011037-DIE. This mixer is well suited for applications such as test and measurement, microwave radio and radar.
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Sound Level Indicators
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A sound level meter is a measuring instrument used to assess noise or sound levels by measuring sound pressure. Often referred to as a sound pressure level (SPL) meter, decibel (dB) meter, noise meter or noise dosimeter, a sound level meter uses a microphone to capture sound. The sound is then evaluated within the sound level meter and acoustic measurement values are shown on the display of the sound level meter. The most common unit of acoustic measurement for sound is the decibel (dB); however, some sound level meter devices also determine the equivalent continuous sound level (Leq) and other acoustic parameters. With a portable sound level meter, industrial hygiene and workplace safety professionals can measure sound levels in multiple locations to ensure environmental conditions fall within recommended exposure limits (RELs). Some sound level meter devices can be permanently installed for continuous monitoring of sound levels at a work or job site.An important attribute to consider when searching for a suitable sound level meter is its type or class. The type or class of a sound level meter defines the device's accuracy as per American National Standards Institute (ANSI) or International Electrotechnical Commission (IEC) guidelines. Typically, "type" is the grade according to the ANSI S1.4 standard, whereas "class" is the grade according to the IEC 61672 standard. There are two types or classes assigned to sound level meters: type 1 / class 1 or type 2 / class 2. For assessing noise in basic industrial, commercial, educational, recreational or residential applications, a type 2 / class 2 sound level meter usually will suffice. For precision-grade assessments often made in a laboratory, a type 1 / class 1 sound level meter primarily is used. PCE sound level meter products are lightweight, easy-to-use and manufactured in accordance with the highest industrial standards.
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Product
SENSORBOX MODULE
MDGDSSBM
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*Turn your MDMAX, MDMAX2A or MDMAX3 into a unique sensor simulator to substitute known good waveforms for intermittent components that cannot be verified*Sensor simulation tests include: DC voltage, fixed frequency, pre-defined waveform and hand-drawn waveform*Contains a library of standard reference waveforms that can be modified by the stroke of a finger
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AIM Sniffer
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AIM Sniffer is a handy network utility to capture and log AIM (AOL Instant Messenger) chat from computers within the same LAN. It supports not only messaging through AIM server but also direct connection messaging. All intercepted messages are well organized by AIM user with buddies and shown instantly on the main window. It provides rich-features report system to export captured AIM conversations as HTML files for later analyzing and reference.
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Reference Systems For UV-LED Production
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Konica Minolta Sensing Americas, Inc
UV-LED lab measuring stations are for testing new products or, e.g. building reference systems for UV-LED production. In order to cater for new measurement scenarios, the individual system components of the high-end portfolio from Instrument Systems are subject to ongoing technological improvement. -
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EcoTestr™ pH1 Waterproof Pocket Tester
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The economical, simple-to-use pH tester measures pH levels and temperatures quickly, displaying them both simultaneously on a large dual-line LCD. It has a pH range from 0 to 14 with an accuracy of ±0.1 pH. The tester features up to three pH calibration points with auto NIST and US buffer recognition. Additional features include a long-lasting durable electrode with polymer reference electrolyte; status icons for measurement stability, calibration, and battery life; and self-diagnostics. The IP67-rated housing features an easy-to-grip design and floats if accidentally dropped in water when sensor cap is on. The tester, powered by four AAA batteries, can operate up to 400 hours continuously. The unit will auto power-off after 8 minutes of nonuse to conserve power.
