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
-
Product
Tailored for Measuring Emissions
CEMS solutions
-
SICK's CEMS solutions are analyzer solutions that have been specifically designed for measuring emissions at power plants, industrial facilities, or on ships. CEMS solutions can be used to measure pollutants and reference quantities and to perform data processing on the results in accordance with the relevant national or international legislation.
-
Product
Perten Falling Number 1000
-
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.
-
Product
Phase Noise Analyzer
NXA-50
-
This new NXA-50 is a sea-change in Phase Noise Test Systems. Making both residual and absolute noise measurements out to 50 GHz, this self-contained instrument uses either internal or external references with cross correlation for maximum dynamic range.
-
Product
Surface Measurement Instrument
SMI
-
Redefining speed and accuracy in non-contact metrology, the Optikos SMI is a high-speed surface topography instrument that characterizes spherical, toric, and aspheric surfaces. The SMI measures surface shape deviations of precision surfaces using wavefront analysis technology. Configured to measure such items as: micro-optics, ball lenses, and contact lens molds, the instrument allows users to easily measure aspheric and toric parts without the need for reference surfaces.
-
Product
Voltage Output D/A Converters
-
Analog Devices offers a large family of resistor string and R-2R voltage output (VOUT) D/A converters (DACs). From 8 bits up to 20 bits of resolution, single to 40 channels, integrated or external reference, parallel, LVDS, serial SPI or I2C interface, with high temperature operation, we have a D/A converter to suit your application. We provide precision, buffered, and unbuffered rail-to-rail VOUT D/A converters with up to ±1 LSB INL and DNL specifications and excellent offset and gain error. Our D/A converters work well in a wide variety of open-loop or closed-loop systems—adjusting gain, offset, and many other signals.
-
Product
Measurement Data Wireless Communication Systems
-
Enables easy wireless data communication from a measuring tool to a PC Available at a lower price due to substantial cost reductions For detailed information‚ refer to the leaflet No. E12000
-
Product
4-Channel 200 MHz A/D with DDC, Virtex-7 FPGA - 6U VPX
Model 57761
-
- Supports Xilinx Virtex-7 VXT FPGAs- GateXpress supports dynamic FPGA reconfiguration across PCIe- Four or eight 200 MHz 16-bit A/Ds- Four or eight multiband DDCs- Multiboard programmable beamformer- 4 or 8 GB of DDR3 SDRAM- PCI Express (Gen. 1, 2 & 3) interface up to x8- Sample clock synchronization to an external system reference- LVPECL clock/sync bus formultimodule synchronization- Optional LVDS connections to the Virtex-7 FPGA for custom I/O- Ruggedized and conduction-cooled versions available- Supports GateXpress® FPGA-PCIe Configuration Manager- Synchronize up to eight modules with Model 7893 System Synchronization and Distribution Amplifier - PCIe
-
Product
Microvolt DC Volt Meter
QA350
-
The QA350 relies on a built-in reference to calibrate the ratio between the hi and low ranges. If you have a preferred lab reference, you may use that it to improve the QA350 accuracy beyond the indicated +/- 400 PPM. For example, various vendors on eBay can provide calibrated +/-30 PPM 5 or 10V voltage references that can be used to set the ultimate accuracy of the QA350 to under 50 PPM at room temperature.
-
Product
Sound Level Calibrator
521
-
Accepted internationally 1 kHz represents the "0 dB" reference point of A, B, C Weighting and other filters utilized in acoustic measurement. The Pistonphone - a mechanical sound source - offers a slightly higher degree of accuracy at a substantial increase in cost. In addition, the 200 or 250 Hz operating frequency is mechanically limited and not suited for measurements of filtered inputs. The 0.2 dB accuracy is quickly lost in the 0.7 to 1.5 dB tolerances acceptable for weighting filters at frequencies around 250 Hz.
-
Product
Portable Three-Phase Meter Site Analyzer
RW-30X / RW-31X
-
RADIAN RW-30/31X Meter Site Analyzers deliver comprehensive three-phase field testing and site analysis utilizing the Radian Research RX Xytronic series reference standard as its measurement engine. The RW-30/31X provides for testing meters with integrated, precision, true three-phase voltage and current sources or using customer’s load. Choose the RW-30/31X NS (no source) model to test using customer’s load only.
-
Product
Thermocouple Kit
34307A
-
The Keysight 34307A is compatible with the Keysight 34970A Data Acquistion/Switch Unit. The 34307A can also be used with the Keysight 34401A, 34460A or 34461A, however, an external program is required to convert the voltage measurements to temperature and an ice bath or electronic reference junction must be used.
-
Product
Remote Radio Head Test, Reference Solution
-
The Remote Radio Head Test, Reference Solution provides the physical interfaces together with the vector signal analysis and vector signal generation you need to carry out comprehensive functional and performance testing of your RRH). Fully characterize the uplink and downlink, RF air-interface to and from the digital "front-haul".
-
Product
Camera Color Correction for Photo & Video
SpyderCHECKR™ Family
-
Automatically color correct your images by capturing SpyderCHECKR reference patches in your photo shoot, eliminating trial and error in post production. You can also color calibrate your camera and perform precision in-camera white balance.
-
Product
4-Channel 1.25 GHz, 16-bit D/A with Virtex-6 FPGA - XMC
Model 71670
-
- View product video- 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- 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- PCI Express (Gen. 1 & 2) interface, up to x8- 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
-
Product
SWR True Antenna Analyzer
-
SWR True Antenna Analyzer is a versatile analyzer covering all major communication bands from 30MHz to 2700MHz. The SWR True will analyze antennas and cables. Measurements are represented graphically as VSWR or Return Loss plots. The built in PLL synthesized generator offers a superior accuracy with small step size. 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. The SWR True instrument is small, handy and light weight battery operated with more than 6 hours of continuous operation on the internal NiMh cells. Feature with XML data handling and application viewer is included. Accessory kit with soft carrying bag, car charger and coax adapters for standard types.
-
Product
Reference Detect Switch
RDS Series 1.5” x 1.5” x 0.6”
-
*Connectorized Package *Internal/External Reference Detect Switch *Standard Internal TCXO (±2.5 ppm) *Optional Internal OCXO (±90 ppb)
-
Product
1202a High Frequency Distribution
-
Precise Time and Frequency, Inc.
The ptf 1202A High Frequency Distribution amplifier provides high performance frequency references for laboratory or system use requiring distribution at frequencies of 30MHz and above.The ptf 1202A is especially designed to distribute the high frequency input signal to 12 separate outputs, with minimum signal distortion and maximum isolation between individual output signals.
-
Product
CN-37 Blackbody
-
Compact thermal camera reference source. Compatible with all thermography cameras on the market and IEC 80601-2-59 compliant. Available now, ready to ship.
-
Product
GPS Time and Frequency Standards
-
Our range of GPS disciplined Rubidium Oscillator, OCXO and TCXO, low cost and stable, time and frequency references in a variety of rack mount and desktop sizes to suit all applications. For a technical discussion of GPS go here or select a link below for product information.
-
Product
DCA-M Sampling Oscilloscopes
-
Built on Keysight's digital communication analyzer (DCA) technology, the DCA-M family is recognized as the industry standard for verifying optical transmitter compliance to communications standards. With single to quad optical AND electrical channels in a compact form factor, the DCA-M is ideal for both manufacturing and RND applications. Analyze both multi-mode and single-mode signals with the low-noise, high-sensitivity calibrated reference receivers. The variety of models along with the supporting software and compliance applications ensure you can measure with high precision, whether you analyze electrical or optical devices.
-
Product
Frequency Response Function
FRF
-
FFT Spectral Analysis. Frequency Response Function (FRF) is a commonly used measurement type of the Dynamic Signal Analyzer. FRF is defined as the ratio of response i.e. acceleration, velocity, or displacement with respect to the excitation force which is the reference.
-
Product
Single Phase Site Energy Meter Test Instrument Type KP-P1001-A
-
Bofa Instrument & Equipment Co., Ltd
Single phase site energy meter test instrument type KP-P1001-A (without voltage and current source) is an ideal instrument to test all kind single phase energy meters accuracy below 1.0, especially for meters on site. During tests, the tested meter must be on load condition (that means the tested meter must be working). The instrument tests the errors by comparing energy impulse from the tested meter with energy impulse from the reference meter inside the instrument.
-
Product
Ultra-Low Noise, Precision Voltage Reference
ISL21090
-
The ISL21090 is an ultra-low noise, high DC accuracy precision voltage reference with a wide input voltage range. The ISL21090 uses Renesas' advanced bipolar technology to achieve sub 1.0µVP-P (1.25V option) 0.1Hz to 10Hz noise with an initial voltage accuracy of 0.02% (2.5V option).
-
Product
Ball Bearing Linear Stage,13mm Travel XYZ, Sensitivity 3um
APSM13(A)-34
-
Model:APSM13(A)-34 Ball Bearing Linear Stage,13mm Travel XYZ, Sensitivity 3um Details&Spec: Please refer to PSM13(A)-34 Specification,It is combinated by 2pcs PSM13(A)-34 (C,SR,SL) and 1pc PSM13(A)-34CZ
-
Product
Attitude Heading Reference System
(AHRS) TRAX2
-
Using its unrivaled magnetic sensor expertise , PNI fuses its proprietary magnetic sensors and sensor fusion algorithms, delivering accurate AHRS heading without the need for GPS.
-
Product
High Frequency Synthesizer
HFS Series 1.25” x 1” x 0.25”
-
*Surface Mount Package *Broadband Designs Available *Optional Internal Reference *Optional Reference Detect Switch *Internal Reference Output Available *Off-the-Shelf Products Available
-
Product
Scanning Mobility Particle Sizer Spectrometer
3938
-
TSI''s newest Scanning Mobility Particle Sizer SMPS™ spectrometer is widely used as the standard for measuring airborne particle size distributions. This system is also routinely used to make accurate nanoparticle size measurements of particles suspended in liquids. The National Institute of Standards and Technology (NIST) uses a TSI DMA to size 60 nm and 100 nm standard size reference materials.
-
Product
Multi-Channel Clock Generator
XCLK1
-
Curtiss-Wright Defense Solutions
High-speed analog IO acquisition systems need a high quality master reference sample clock.Accurate synchronization in the 100MHz and up frequency domains is not easy and it’s a critical performance limiting factor if not done well. The XCLK1 multi-channel clock generator solves these problems.
-
Product
4 Serial Communication Channels, Programmable RS-232/422/485, Isolated
SC5
-
Serial Communication Module SC5 provides up to 4 high-speed, programmable RS-232/422/485, individually isolated communication channels. Each channel is programmable for either RS-422/485 (differential, DF) or RS-232 (single ended, SE) hardware level interfaces. Individual channel isolated returns are available as part of the channel user interface signal set (for SE or ISO-GND reference).
-
Product
Mezzanine System
5174
System
The 5174 provides two major functions, serving as a precision Voltage Controlled oscillator board and a variable frequency source board. These features can be use together or independently. As a variable frequency source, the 5174 provides a high-resolution variable clock source that is based upon a reference clock supplied by the ECM carrier.
