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
Facility Operations Management Services
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Facility management services refer to a range of professional services that are aimed at managing and maintaining facilities. These services typically include designing and managing facility systems in an attempt to optimize revenue spending and returns on investment.
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Product
Class 2 Sound Level Meter
SP79
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The SP79 is a Class 2 sound level meter for on-site measurements in accordance with Noise at Work legislation in industrial and office environments. Featuring A and C frequency weighting and fast and slow time weighting, the compact design can be handheld, or mounted on a tripod for longer term monitoring of Min / Max values. Detailed recording and analysis can be made using the AC and DC outputs. The SP79 complies with BS EN 61672-1:2003 and is supplied with a detachable windshield and hard carry case. The large high contrast display includes both digital reading and analogue bar graph. An optional Class 2 sound level calibrator is available to verify accuracy before and after readings in accordance with international standards. The SPC70 is simple to use and provides a 1kHz reference at 94dB and 114dB.
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Comparators
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A device for comparing a measurable property or thing with a reference or standard.
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Product
Clock Signal Generators
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Optellent offers a range of clock signal generators providing clean reference clock signals up to 32 GHz.
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Product
Gas Filter Correlation Carbon Monoxide Analyzer
Model T300
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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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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
Drop Count Titration Test Kit
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Dropper titrations are a simple and cost-effective way to test many of the most common parameters, including chlorine, chloride, dissolved oxygen, carbon dioxide, sulfite, nitrogen, formaldehyde and more. The kits can be used in mobile applications or in the laboratory for a quick reference comparison.
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Load Cell Tester
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Xiamen Elane Electronics Company, Ltd
Large six-digit LED display < Easy to use and small in size < Accuracy of 0.005%FS/10ppm < 2 channels CH0 : -12mV/V~+12mV/V, with resolution 0.1uV/V CH1 : -1.6mV/V~+4.8mV/V, with resolution 0.01uV/V < Four user selectable output units (N, kgf, lbf and mv/V) < Peak Hold function to capture and holding the peak value for the immediate or later reference < Clear key to clear the peak value < Presence of tare key and foot switch to zero the display (tare function) < Great for monitoring and testing load cell characteristics (repeatability, linearity, creeping, temperature drift, etc
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Time Interval Shaper
CH7-316
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The Ch7-316 time interval shaper is designed to generate pulse sequences coherent with the reference signal (internal or external) with a wide range of repetition periods, as well as two pulse sequences with a period of 1 second (time scales) with a programmable phase shift.
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Product
1 GHz A/D and D/A with Virtex-6 FPGA - XMC
Model 71630
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- One 1 GHz 12-bit A/D- One 1 GHz 16-bit D/A- Up to 2 GB of DDR3 SDRAM or 32 MB of QDRII+ SRAM- Sample clock synchronization to an external system reference- Front panel clock/sync bus for multimodule synchronizationPCI Express (Gen. 1 & 2) interface up to x8 wide- Optional user configurable gigabit serial interface- Optional LVDS connections to the Virtex-6 FPGA for custom I/O- Synchronize up to four modules with Model 7192 System Synchronization and Distribution Amplifier - PMC/XMC- Synchronize up to twelve modules with Model 9192 System Synchronization and Distribution Amplifier- 1U Rack-mount
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Product
HBM Verification Tester
HBM-VT
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High Power Pulse Instruments GmbH
- HBM pulse generator verification tester according ANSI/ESDA/JEDEC JS-001 up to ±10kV- To be used in HBM test and qualification labs for regular pulse generator specification compliance test in order to fulfill lab audit and certification requirements- Fully automatic compliance test and verification of HBM pulse generators regarding ANSI/ESDA/JEDEC JS-001 normative standard at 3 different load conditions: Short Circuit, 500 Ω, and a reference diode at VBR=15 V reverse breakdown voltage, including DC test- Parameter evaluation and verification of the transient HBM current waveforms: Peak Current, Rise Time, Decay Time, Maximum Ringing Current- Optionally available upgrade for all HPPI TLP-3010C, 4010C, 8010A, 8010C, HBM-TS10-A hardware systems in combination with HBM-S1-B (6kV) pulse generators (upgrade on request)- Fully automatic test report generation (PDF)- Electrically floating (no fixed system ground): The HBM loads, current sensor output, USB control interface and the enclosure are electrically floating. There is no limiting system ground which may introduce common-mode interference induced HBM current measurement errors.- Isolated industrial full-speed USB control interface- Isolated power supply derived from USB port- Compact size 126mm x 82.5mm x 44.5mm
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Product
Crossed-Roller Bearing Linear Stage ,25mm Travel XYZ,Sensitivity 1um
NFP-3462
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Model:NFP-3462 Crossed-Roller Bearing Linear Stage ,25mm Travel XYZ,Sensitivity 1um Details&Spec: Please refer to NFP-1462 Specification,It is combinated by 2pcs NFP-1462(C,SR,SL) and 1pc NFP-1462CZ(as vertcail stage)
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Mini Light Source Meter
MLS-100
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•Stabilized Light Source•1310nm & 1550nm•Very small and lightweight•Controlled by Smartphone or PC via USB or Bluetooth•Smartphone application software and PC software•Li-ion Polymer Rechargeable battery•Battery charging via a USB interface•Universal 2.5mm adapter to accept FC, SC or ST•Reference light source for optical test
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Product
Piston Gauges
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Fluke Calibration piston gauges provide reference level primary pressure measurements for some of the top laboratories in the world. Our piston gauge lineup includes models that offer full automation. Our primary level pressure balances utilize a fundamental equation to determine generated pressure with very low levels of uncertainty. Piston gauge models include PG7000 and PG9000 DHI systems with AMH automated mass handling and other automation hardware; 2465, 2468, 2470 and 2485 Ruska piston gauges and 24xx differential pressure cell and other piston gauge accessories; FPG8601 DHI very low pressure standard; 2482 Ruska differential pressure standard. Standard pressure calibration.
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Product
Reach-In Vacuum Climatic Test Chamber
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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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Product
Load Cells
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Morehouse Instrument Company Inc.
When high accuracy and low risk are critical, customers rely on Morehouse Ultra-Precision Load Cells. These strain gauge type load cells are often the choice for companies that want their reference standard to have the lowest possible uncertainties. Lower uncertainties allow for shorter set up times, less frequent standard changes, and fewer standards to maintain.
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Product
GPS Time Synchronization Unit
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Signals & Systems India Private Limited
GPS Time Server – GPS-DRM-1010 is a compact DIN rail mountable unit that synchronizes and maintains the timing and frequency requirement of power and process industry equipment using a signal obtained from different external sources such as GPS and GLONASS. It provides nanosecond accuracy when external time references are not available. It has a storage facility to store the system log file. It delivers NTP, SNTP, IRIG-B, PFC-Pulse, RS232 & RS485 outputs. The system enables configuration and monitoring through a Web-based application.
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CT Analyzer
PCT200i
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PCT200 series CT test set (CT Analyzer) is a current transformer test equipment specially designed for current transformer characteristic test and with additional PT test functions for reference test. PCT200i owns more test items and higher technical parameters.
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Product
Dual Channel High Voltage Linear Amplifier
F20AD
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This unit contains two independent F20A amplifiers that share common ground reference and power supply.
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4-Ch 1.25 GHz, 16-bit D/A with DUC, Extended Interpolation, Virtex-6 - 3U VPX
Model 52671
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Four 1.25 GHz 16-bit D/As- Four digital upconverters- Programmable output levels- Extended interpolation range from 2x to 1,048,576x- 250 MHz max. output bandwidth- 2 GB of DDR3 SDRAM- Sample clock synchronization to an external system reference- Dual µSync clock/sync bus for multimodule synchronization- Optional user-configurable gigabit serial interface- Optional LVDS connections to the Virtex-6 FPGA for custom I/O- 3U VPX form factor provides a compact, rugged platform- Compatible with several VITA standards including: VITA-46, VITA-48 and VITA-65 (Open VPX™ System Specification)- 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
10 Micron Wire Grid Polarizer
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Fabricated from 10 micron diameter tungsten wire, and with a choice of wire spacing starting from 25 microns, these wire grid polarizers are suitable for use from approximately 100 microns (or 3 THz) to longer wavelengths. Please refer to the table below for the standard availability of wire spacing and frame clear aperture / outer diameter.
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Bus Analyzer
FireSpy430b(T)/830b(T)
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The FireSpy430b(T) and FireSpy830(bT) bus analyzers are the single bus models in the 4th generation of IEEE-1394 analyzers from DapTechnology. Based on the industry leading FireSpy810 the all new and enhanced architecture of the FireSpy430b(T)/830b(T) have again defined a new reference in IEEE-1394 test equipment! They comprise a significantly more powerful on-board processor, more memory and improved connectivity to the host.
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8-Channel A/D & D/A Zynq UltraScale+ RFSoC Gen 3 Processor - PCIe
Model 7053
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- Supports Xilinx® Zynq® UltraScale+" RFSoC FPGA- 16 GB of DDR4 SDRAM- On-board GPS receiver- PCI Express (Gen. 1, 2, and 3) interface up to x8- LVDS connections to the Zynq UltraScale+ FPGA for custom I/O- Optional front panel dual optical MPO interface for gigabit serial communication- Unique QuartzXM eXpress Module enables migration to other form factors- Navigator BSP® for software development- Navigator FDK® for custom IP development- Free lifetime applications support- Pentek's Quartz Family of Xilinx Zynq UltraScale+ RFSoC FPGA Products Video- Live Signal Acquisition Video: Quartz Model 5950 and Model 6001 RFSoC boards- Pipeline Newsletter: Strategies for Deploying Xilinx's Zync UltraScale+ RFSoC- Synchronize up to eight modules with Model 5903 High-Speed System Synchronization and Distribution Amplifier - 3U VPX- Please refer to the product datasheet for Installed FPGA IP Module details
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4-channel ADC Module
FMC140
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Sundance Multiprocessor Technology Ltd.
The FMC140 is an analog-to-digital (A/D) FMC daughter card that provides four 16-bit A/D channels at 370MSPS which can be clocked by an internal clock source (optionally locked to an external reference) or by an externally-supplied sample clock. A trigger input is also available for customized sampling control. The FMC140 is mechanically and electrically compliant to the FMC standard (ANSI/VITA 57.1-2010). It offers front panel analog I/O access and can be used in a conduction-cooled environment.
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Product
Microwave Wideband Externally Modulated Transmitters (without RF Amp)
MT80 (30KHz~40GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MT80 series microwave optical transmitter, adopts external modulation technique, are able to transmit 40GHz 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 40Gb/s high speed communication system. MT80 adopts low noise, narrow linewidth CW DFB laser as light source; LiNbO3 external modulator as signal modulation, no laser chirp, low dispersion distortion, high extinction ratio, Full-transparency operation mode. It can be applied in long distance and extra-long distance transmission after EDFA.
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Dytronic Primary Transfer Ultra Stable Standard
RD-22 Ultra
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The RD-22 Dytronic Primary Transfer Ultra Stable Standard represents the state-of-the-art technology in a commercially available AC transfer reference. The Ultra Stable RD-22 is a variant of the RD-22 Primary Transfer Standard that has been optimized for 120/240 V @ 5A operation to provide optimum stability. In a stable test environment, repeatability for a 10-second test of ±0.6 µWh/VAh is attained at 120 V and 240 V at 5A inputs with a 95% confidence interval. A typical experimental 2 repeatability of less than ±0.25 µWh/VAh is achieved. In a stable test environment, a reproducibility of ±2 µWh/VAh over a five-day interval is attained at 120 V and 240 V at 5A inputs with 95% confidence interval.
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Product
Walk in chamber for Complex Salt Spray Test (Temperature controllable)
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Guangdong Bell Experiment Equipment Co.,Ltd
Walk in chamber for Complex Salt Spray Test Relevant standards requirement1. Test Object: battery pack andsystem.2. Refer GB/T4 part 5.5.2 test method, test according to GT/T2423.17 test conditions.3. The salt solution was made up with sodium chloride (chemically pure and analytically pure) and distilled or deionized water，Its concentration is (5 + 1)% (mass fraction).4. (35 ± 2) ℃, the measured pH value is between 6.5-7.2.5. Placed the test objects in the salt spray chamber for cycling test. Each cycling duration for 24h. Spray salt solution to the test object for 8 hours under the temperature of (35± 2) ℃ , remain for 16 hours. Between the forth and the fifth hour in one cycles should be according to test requirement in GB/T 28046.1-2011, test mode with 3.2.6. Total 6 cycles testing.7. Salt spray test is not necessary for the test objects being installed in passenger, luggage or cargo compartments.
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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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4-Channel 200 MHz, 16-bit A/D with Virtex-6 FPGA - 3U VPX
Model 52660
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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- Four 200 MHz 16-bit A/Ds- 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 multiboard 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
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Product
Sunshine Duration
LPSD18… Series
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Sensor for the measurement of the sunshine duration, referred to the 120 W/m² threshold of direct radiation, according to the WMO indications.
