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
Primary Reference Generator
VCH-001
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The Primary Reference Generator (PEG) VCH-001 is designed to generate the highest accuracy clock signals in a digital communication network. Main areas of application: – synchronization in telecommunication networks.
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Product
2-Channel 500 MHz A/D and 2-Channel 800 MHz D/A with Virtex-6 FPGA - 6U VPX
Model 57650
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Two 500 MHz 12-bit A/Ds- One DUC (digital upconverter)- Two 800 MHz 16-bit D/As- Up to 2 GB of DDR3 SDRAM; or: 32 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 user-configurable gigabit serial interface- 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
NI-9775 , ±10 V, Up to 20 MS/s/ch, 14-Bit, 4-Channel C Series Digitizer Module
784539-01
Digitizer
The NI-9775 provides referenced single-ended analog inputs with two timing modes for applications such as fault detection in electrical transmission lines or structural failure events. You can use the NI-9775 to measure finite samples up to 20 MS/s/ch to capture fault detections or to measure continuously at up to 4 MS/s. You also can use the built-in analog reference trigger to assist with high speed phenomena. Additionally, the NI-9775 supports waveform streaming at a lower sample rate.
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Product
Mid-Range Gas Filter Correlation CO Analyzer
Model N300M
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Teledyne Advanced Pollution Instrumentation
The Model N300M is a microprocessor-controlled analyzer used to determine the concentration of carbon monoxide (CO) in a sample gas. The analysis method is based on the Beer-Lambert law.The N300M uses Gas Filter Correlation (GFC) to overcome the interfering effects of various other gases (such as water vapor) that also absorb IR. The analyzer passes the IR beam through a spinning wheel made up of two separate chambers: one containing a high concentration of CO known as the reference, and the other containing a neutral gas known as the measure. The concentration of CO in the sample chamber is computed by taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample temperature and pressure.
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Product
Terminal Block For 34921A And L4421A Multiplexer
34921T
Terminal Block
Offers a built-in thermocouple reference junction that helps minimize errors due to thermal offset
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Product
UV/VIS/NIR Spectrophotometer Calibration Standards
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As the world's foremost spectrophotometer reference standard manufacturer, we have a dedicated staff and years of experience to back up our products. Our solid state UV/VIS/NIR reference standards are the most stable on the market and remain in spec long after many other manufacturer's standards go bad. Relying on our proprietary nano-deposition technology, you can rest assured that our solid-state standards will produce steady readings for years to come on your machines.
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Product
SP-20 Spectral Photosynthetic Radiometer
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Hangzhou Everfine Photo-E-Info Co., LTD
SP-20 test speeds up to milliseconds. It realizes the measurement functions of spectral power distribution, photosynthetic radiation parameter, optical quantum parameter, photo-electrical parameter, and it also realizes the quantity conversion between the three measurement systems. Refer to DLC, ASABE, DIN, GB, CQC, CSA and other international plant lighting standards.
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Product
Linear IC Tester
570A
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The Model 570A Analog IC Tester's built-in test library includes all common Analog ICs including op-amps, comparators, voltage regulators, voltage references, analog switches & multiplexes, opto-isolators & couplers, and audio ICs.
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Product
Spectrum Analysis
S95090B
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The S95090B spectrum analyzer (SA) measurement software adds high-performance microwave spectrum analysis to PXI VNAs. With fast stepped-FFT sweeps resulting from optimized data processing, the SA software application provides quick spurious searches over broad frequency ranges. The S95090B software uses the PXI network analyzer's test and reference receivers to complete simultaneous spectrum measurements. Multi-channel SA measurements leverage the PXI VNA's internal swept-signal generators for efficient measurements of spurious signals emanating from mixers and frequency converters. The S95090B spectrum analyzer software application employs source-power and receiver-response calibration as well as fixture de-embedding, providing in-fixture and on-wafer spectrum measurements with the highest level of accuracy. Optional external attenuators should be connected with the VNA’s test ports to avoid receiver compression when measuring large signals.
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Product
6-Channel 200 MHz A/D and 4-Channel 800 MHz D/A with Virtex-6 FPGA - 6U VPX
Model 58620
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-6 LXT and SXT FPGAs- Six 200 MHz 16-bit A/Ds- Two DUC (digital upconverters)- Four 800 MHz 16-bit D/As- 4 GB of DDR3 SDRAM; 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 user-configurable gigabit serial interface- 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
3-Slot Data Acquisition Mainframe With GPIB, Two 20-Channel Switch Modules, And One 20-Channel Multiplexer Module
DAQ973SB
Mainframe
The DAQ973SB Better Multiplexer Bundle offer includes a DAQ973A three-slot data acquisition mainframe, two 20-channel DAQM903A Actuator / GP switch modules, and one 20-channel DAQM901A multiplexer module. This bundle provides the following:3-slot mainframe with USB, LAN, and GPIB6.5-digit (22-bit) internal DMM60 channels of multiplexer switches6 channels of dedicated current measurements2- and 4-wire scanning300 V switching80 channels/s scanningbuilt-in thermocouple reference junction20-channel actuator / general-purpose switch with independent single-pole, double-throw (SPDT) relaysbuilt-in signal conditioning to measure thermocouples, RTDs and thermistors, AC / DC volts and current; resistance, frequency / period, diode test, and capacitance
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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
1 GHz A/D and D/A with Virtex-7 FPGA - XMC
Model 71730
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- Complete radar and software radio interface solution- Supports Xilinx Virtex-7 VXT FPGAs- GateXpress supports dynamic FPGA reconfiguration across PCIe- One 1 GHz 12-bit A/D- One 1 GHz 16-bit D/A- 4 GB of DDR3 SDRAM- Sample clock synchronization to an external system reference- Dual uSync clock/sync for multimodule synchronization- PCI Express (Gen. 1, 2 & 3) interface up to x8 wide- 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- Supports GateXpress® FPGA-PCIe Configuration Manager- 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
Multiplying Current Output D/A Converters
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Analog Devices offers a wide range of high precision, multiplying current output (IOUT) D/A converters (DACs) that feature ±1 LSB INL and DNL specifications, from 12-bit up to an industry-leading 18-bit resolution. Our portfolio includes single and multiple D/A converters in small packages with parallel or serial SPI interfaces. Multiplying current output R-2R D/A converters allow for an external amplifier that’s optimized for specific applications and that does not require reference buffering, which enables high linearity. The SoftSpan™ feature allows software selectable output spans, therefore eliminating the need to add precision gain stages and the associated external jumpers, precision resistors, and amplifier circuitry. Integrated precision resistors allow for reference inversion, bipolar offset, and offset and gain adjustment.
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Product
PV Reference Cells
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Our silicon-based solar irradiance sensors (Si-Sensors) measure the irradiance intensity on your photovoltaic system with utmost precision.
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Product
1-Channel DAQ Module
FMC170
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Sundance Multiprocessor Technology Ltd.
The FMC170 is an analog-to-digital (A/D) and digital-to-analog (D/A) FMC daughter card that provides one 10-bit A/D channel at 5Gsps and one 10-bit D/A channel at 5Gsps. The sample clock can be supplied externally or by an internal clock source (optionally locked to an external reference). The clock tree enables cascading of multiple boards for phase-locked sampling. A trigger input is also available for customized sampling control.
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Product
Integrated Potentiostat and Multiplexer
EmStatMUX8
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Based upon the EmStat range, there are two types of multiplexers to suit most types of sensor array work. The MUX8 is the most flexible offering the ability to connect arrays made of up to eight working electrodes in two or three electrode cell types and chips sharing a reference electrode and/or counter electrode.
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Product
Low Cost Microwave Wideband PIN Preamp Receivers
MR21 (40KHz~18GHz)
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Hangzhou Huatai Optic Tech. Co., Ltd.
MR21 series microwave wideband optical receiver, adopts High linear PIN diode and Low noise pre-amplifier IC, within bandwidth of 40KHz~18GHz, they are featured with excellent linearity, high responsibility and superior flatness of the RF response in both, power and phase. They provide an outstanding linearity fiber optical communication for analogue 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 18Gb/s high speed communication system.
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Product
VHF/UHF Digital RF WATT/VSWR Meter
PMR 3030
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The PMR 3030 EXT Power Meter is a very versatile instrument covering communication bands from 30-1000 MHz. (The PMR 3030 is available for 30-500 MHz only. The PMR Power Meter is capable of measuring forward and reflected power in the range of a few milliwatts up to 500 Watts. The internal operating system controls measurement, display and the I/Os allowing serial communication to PC, USB to memory stick and USB Serial communication. The I/O options are used to write plots to either memory sticks or to a connected PC, the I/Os can also be used to operate the instrument, giving commands and receiving data. For documentation reference the instrument has a real time clock. Multilayer menus are used to setup and control the operation of parameters.
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Product
8-Channel 250 MHz A/D with DDC, Kintex UltraScale FPGA - PCIe
Model 78131
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- Jade Xilinx Kintex UltraScale FPGA Products and Navigator Design Suite Software Video- Jade Xilinx Kintex UltraScale FPGA Family Brochure- Ideal radar and software radio interface solution- Supports Xilinx Kintex UltraScale FPGAs- Eight 250 MHz 16-bit A/Ds- Eight multiband DDCs (digital downconverters)- 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 versions available
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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 Probes - Low Bandwidth
P6701B/P6703B
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Depend on Tektronix to provide you with performance you can count on, and industry-leading service and support.- Broad Wavelength Response 500 to 950 nm or 1100 to 1700 nm- High-bandwidth DC up to 1.2 GHz- High Gain 1 V/mW- Low Noise <11 pW/√Hz- Probe Connects to DPO7000*1 and DPO/DSA/MSO70000*2Series- SONET/SDH and Fibre Channel Reference Receiver Performance
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Product
PC-Based Time Interval Analyzer
GT658PCI
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GuideTech’s GT658PCI is an ultra-fast, high resolution, DC – 400 MHz Time Interval Analyzer (TIA), ideal for most PC-based lab bench (timing) test applications. What makes the GT 658 superior to traditional counters is analogous to the difference between volt meters & digital scopes. While both measure voltage, the scope provides much more information about the dynamics of the signal. This is because our patented TIA substantially increases measurement speed, and the measurements are displayed as afunction of time. All of these features, along with the benefit of ‘continuous time correlation to a common reference between all measurement time stamps,’ enable our TIAs to make measurements that weren’t previously possible with traditional counters.
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Product
Pt RTD Temperature Monitor
SIM923
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Stanford Research Systems, Inc.
The four channels in the SIM923 have independent, stable 1 mA current sources to provide sensor excitation. Sensor resistance is determined ratiometrically with a half-bridge circuit consisting of the sensor and an internal reference resistor.
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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
Precision High Voltage Meter
4700
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The Vitrek 4700 Precision High Voltage Meter offers the highest level of measurement accuracy when it comes to high-voltage measurement equipment. Its color touch screen is surprisingly easy to use for set up and display of testing results. Vitrek leverages DSP technology to provide outstanding AC &DC high voltage measurement accuracy, stability, repeatability and resolution. The 4700 High Voltage Meter offers performance that rivals traditional high voltage reference dividers – yet unlike the tedious divider, the 4700 provides instant, direct, high voltage measurements in a highly portable, compact and rugged bench top enclosure.
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Product
Magnetic field sensor ENB
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Standard-compliant measurement according to EN 62233For use with the measurement system UMS4Suitable for all signal forms due to measuring with reference procedureIsotropic sensor with 3 x 100 cm coil surfaceFrequency range 10 Hz to 400 kHz
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Product
0.50° Accuracy Full Attitude Surface Dynamic Motion Sensor
DMS-550
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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
Power Meter
TW3211
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Techwin(China) Industry Co., Ltd
TW3211 optical power meter Is a handheld optical power meter, newly released in 2007, which can be used for absolute optical power measurements as well as for relative loss measurements in optical fibers. A Ø1.0mm photosensitive area photodiode is used to significantly improve the stability and the reliability. It features ingenious appearance, a wide range of power measurement, high accuracy, an user self-calibration function and a reference power level storage.
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Product
Series Precision Fixed-Ratio Current Transformers
PMT25100
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Power Measurement Technologies Inc.
Precision two-stage toroidal current transformers find application as the reference in determining the accuracy of instrumentation current transformers.
