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
Shunt Voltage References
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Analog Devices offers a broad line of shunt precision voltage references that combine excellent accuracy and temperature stability with low noise and small packages. These devices operate in a manner that is functionally equivalent to a Zener diode. The bias current must be set higher than the sum of the maximum quiescent current of the voltage reference and the maximum expected load current. Since shunt voltage references are typically biased with a resistor, the voltage reference can operate on a wide range of input voltages.
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Product
AC Reference Generators
SR23
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Computer Conversions Corporation
The SR23 Series are miniature, low cost AC reference generators designed to supply 26 or 115 volt excitation (2-115VAC) to synchros or resolvers in military and industrial control applications. They accept +/-15V DC or +/-12V DC power inputs and provide up to 5VA of transformer isolated output power. These converters are packaged in PC card mounting modules 2.6”x3.1”x1”H.
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Product
Anti-Sulfurated Thick Film Type Resistors, Precision Type
ERJ-U2R/ERJ-U3R/ERJ-U6R Series
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Panasonic Industrial Devices Sales Company of America
High Precision And High Resistance To Sulfurization In One Resistor!Panasonic's ERJ-U2R, ERJ-U3R, ERJ-U6R (ERJ-U*R Series) offers high precision and also provides anti-sulfurization characteristics that avoid an open circuit caused by a sulfide disconnection. High resistance to sulfurization is achieved through the use of an anti-sulfurated electrode structure and material in the manufacture of ERJ-U*R Series Resistors. AEC-Q200 Compliance and IEC 60115-8, JIS C 5201-8 and JEITA RC-2134C Reference Standards for the entire ERJ-U*R Series of High Precision, Thick Film Chip Resistors from Panasonic ensures optimal quality and reliability.
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Glow Wire Test Apparatus
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GLOW WIRE TESTER (also known as Glow Wire Test Apparatus) is designed to carry out fire hazard testing as specified in IEC 60695-2-10 2000-10. Flammability test is to check the ‘Resistance to Fire’ of electrical insulators that touch directly conducting parts & also parts of insulators. This test is also referred in many other standards such as IS 11000, IS 3854 : 1997 / IS 1293 :1988 / IS 371 :1999 & IS 11000 Pt 2 Sec 1, IEC 60335, IEC 884/94, IEC 60598, IEC 61058, BS 6458, BS EN 60695–2-10,11,12, etc.
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Product
Optical Wavelength Meters
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Optical wavelength meter that uses a He-Ne laser as reference wavelength and employs the Michelson interferometer method, providing high-accuracy measurement. It can measure emission center frequencies of LDs for DWDM with high resolution and accuracy.The 8471 even provides a high sampling rate of 10 times per second, and is suitable for oscillation wavelength adjustment. In addition, its deviation display function allows wavelength variation to be measured with high resolution and accuracy.
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Product
OnyxFX FlexorSet 8-Channel 250 MHz A/D - PCIe
Model 7070-316
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- Supports Xilinx Virtex-7 VXT FPGA- GateXpress supports dynamic FPGA reconfiguration across PCIe- Eight 250 MHz 16-bit A/Ds- 4 GB of DDR3 SDRAM- Sample clock synchronization to an external system reference- PCI Express (Gen. 1, 2 and 3) interface up to x8- Optional optical Interface for backplane gigabit serial interboard communication- Optional LVDS connections to the Virtex-7 FPGA for custom I/O- Compatible with several VITA standards including: VITA-46, VITA-48 AND VITA-66.4 and VITA-65 (OpenVPX™ System Specification)- Also available as Model 5973-316
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Product
HandyScope HS4 DIFF: 50 MS/s 100MHz BW, 4 Channel, USB Differential Digital Storage Oscilloscope, Spectrum Analyzer, Voltmeter, Transient Recorder
HS4-50-DIFF
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* record length is 131060 samples * 128K samples on screen without loss of information * free settable pre trigger position, from 0 to 100% * easy time axis zoom using unique scaleable sroll bar slider * free adjustable sample frequency * vertical offset and gain adjustable with graphical shiftable and scaleable axis * WYSIWYG trigger level, slope and hysteresis adjustment using combined trigger control * Auto setup to reduce setting time with unknown signals * linear/quadratical interpolation * extended cursor measurements * all settings accessable through popup menus * storing and recalling reference signals * software math channel available * easy to use speedbutton toolbar for easy access of all functions * comment tags to mark specific events in the signal * color hardcopy supported * explanatory comments with all controls * envelope mode * averaging of signals
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Product
Optical Spectrum Analyzer
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an optical spectrum analyzer for analyzing short wavelengths from 350nm to 1000 nm. Because it adopts a Fourier spectrum system with a Michelson interferometer, the 8341 can measure the coherence. With its narrow wavelength resolution of 0.01nm * , the 8341 is very effective for the evaluation of not only CD/DVD laser diodes, but also for blue-violet laser diodes. In addition, the built-in He-Ne laser acts as a wavelength reference to ensure a high wavelength measurement accuracy of ±0.01nm * . Finally, with its fast 0.5s * measurement speed, the 8341 is ideal for building into systems for mass production and evaluating temperature characteristics of system components.
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Product
Spectrum Analysis, Up To 13.5 GHz
S930901B
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The S930901B spectrum analysis adds high-performance microwave spectrum analysis to the PNA family up to 13.5 GHz. With fast stepped-FFT sweeps resulting from optimized data processing, the SA application provides quick spurious searches over broad frequency ranges. Simultaneous spectrum measurements can be done using up to five test and reference receivers. This multi-channel SA can be used with the internal swept-signal generators for efficient measurements of spurious signals emanating from mixers and frequency converters. The SA 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.
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Product
MCX Male to SMA Male Cable, 50 Ohm, 30 cm
188377-0R3
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
Waveguide Switches
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Waveguide switches are electromagnetic switches with hollow circular or rectangular cross-sections and are used for routing RF energy in microwave communications, broadcasting, and in radar applications. Waveguide switches can be used to transfer both power and communication signals, and the bandwidth of a waveguide is in relation to its size, and thus always referred to by its size (e.g. WR112, WR90, WR75 etc.). Compared to coaxial switches, waveguides can route extremely high power signals over a narrow bandwidth at low to high frequencies, and now Lightweight Waveguide series is available.
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Product
Pro Optical Loss Test Set
CertiFiber
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The CertiFiber Pro Optical Loss Test Set improves the efficiency of fiber optics certification. The Taptive user interface simplifies set-up, eliminates errors and speeds troubleshooting. A set reference wizard ensures correct reference setting and eliminates negative loss errors. Built on the future-ready Versiv platform, CertiFiber Pro Optical Loss Test Set (OLTS) provides merged Tier 1 (Basic) / Tier 2 (Extended) testing and reporting when paired with OptiFiber Pro module.
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Product
Saturable Spectroscopy Laser Lock Module
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A compact, mechanically-robust laser frequency reference.
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Product
PCI Direct Digital Synthesizers
SYNTH300 SERIES
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These devices provide two synchronized DDS-based RF channels on a single PCI card. With fine frequency and phase control, triggered operation, and the ability to accept an external clock, the Synth300 products enable a number of advanced applications at a fraction of the cost of conventional equipment. In addition to two analog outputs, the product can be ordered with one (or two) LVDS outputs for programmable digital clock applications, and can be configured for control by externally supplied TTL signals for low-latency triggered operation such as PSK, FSK, and triggered sweep operation.Software support for Windows Vista, Windows XP,Linux and Labview source code availableFor detailed specifications, please refer to the Synth300_Manual
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Product
Legendary Calibration Oscillator
LCO Series 3.5” x 2.5” x 0.6”
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*Connectorized Package *Low Output Power Variation (±0.05 dB)*Output Power to +10 dBm Available *Optional Internal Reference
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Product
Mid-Range Gas Filter Correlation CO2 Analyzer
Model N360M
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Teledyne Advanced Pollution Instrumentation
The Model N360M measures carbon dioxide (CO2) by comparing infrared energy absorbed by a sample to that absorbed by a reference according to the Beer-Lambert law.The N360M 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 CO2 known as the reference, and the other containing a neutral gas known as the measure. The concentration of CO2 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. A nitrogen purge system is provided for the GFC wheel assembly to eliminate the effects of ambient CO2, if necessary.
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Product
Range-Doppler Target Generators
ATG9100
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The ATG-9100 is an example of a laboratory-quality instrument that will simulate complex target motion. Microwave signals from the speed camera enter the instrument through an integrated antenna which is then downconverted and digitized. Target simulation data is added to the digitized signal to provide range and Doppler information. The modified digital data is then converted back to an IF and upconverted to the original microwave frequency of the speed camera and radiated back through the antenna. Since the ATG-9100 can be phase-locked to an external 10 MHz reference standard, this instrument is suitable for use as a calibration standard for speed cameras.
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Product
Four Position Meter Test Bench
TB41
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Calmet Smart Calibration Devices
The Calmet TB41 Four Position Meter Test Bench is used for calibration and simultaneously testing up to four single and three phase electromechanical and electronic acitve and reactive electricity meters with accuracy referenced to an internal reference meter (class 0.02% or 0.04%).
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Product
Trace Moisture and Dew-Point Measurement and Analysis
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We offer a wide range of high-precision trace moisture analyzers, dew point meters, water dew-point transmitters, chilled mirror reference hygrometers and process moisture analyzers.
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Product
SR Series AC Reference Supplies
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Computer Conversions Corporation
The SR Series are miniature, low cost AC reference generators designed to supply 26 or 115 Volt excitation to Synchros or resolvers in military and industrial control applications. They accept +/- 15V DC and provide up to 5VA of transformer isolated output power. These converters are packaged in PC card mounting modules 2.6" x 3.1" x 1"H.
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Product
25µA Micropower Voltage References
ISL21070
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The ISL21070 voltage references are analog voltage references featuring low supply voltage operation at ultra-low 25µA max operating current. Additionally, the ISL21070 family features guaranteed initial accuracy as low as ±0.2% and 30ppm/°C temperature coefficient. These references are ideal for general purpose applications for performance at lower cost.
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Product
Short Circuit Test System
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Shanghai Guantu Technology Co., Ltd.
The short-circuit test system refers to what kind of short-circuit test is carried out by which equipment, and how long is the test time. But I have one thing to tell you, the short circuit test is a kind of destructive test, mainly to test the working condition of the used equipment in a crisis situation, or to test how strong the anti-destructive ability of the used equipment is. Just like a lot of equipment in the military must undergo a short-circuit test, some for 3 minutes or longer, in order to resist breaking calls against the enemy during wartime.
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Product
T7 Fiber-Optic Cable Assembly for GPIB-140, 10 m
182805-010
Cable Assembly
2-Pin Male to 2-Pin Male, Core/Clad 62.5/125 um, 850 nm Wavelength Fiber-Optic Cable for GPIB-140A Extender - The GPIB T7 Cable, sometimes referred to as GPIB Cable, connects your system to high-speed GPIB-140A extender devices. You can use the GPIB T7 Cable with a GPIB extender to increase the cable length of your system up to 1 km without comprising the integrity of your GPIB system or requiring any application modifications. The GPIB T7 Cable is offered in different lengths.
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Power Line Isolators & Conditioners
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A power line conditioner (also known as a line conditioner or power line conditioner) is a device intended to improve the quality of the power that is delivered to electrical load equipment. While there is no official definition of a power conditioner, the term most often refers to a device that acts in one or more ways to deliver a voltage of the proper level and characteristics to enable load equipment to function properly.In a nutshell, poor incoming electrical power converted to good output power.
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Product
Portable Meter Test Kit
UTEC 430
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The UTEC 430 is the first Portable Meter Test Kit to support both the Radian Dytronic (RD) and the installed base of Radian Metronic (RM) reference standards. The ability to support both reference standards makes the 430 the ideal budgetary solution for traditional on-site meter testing using Phantom Load current sourcing. Do not let its compactness fool you, the UTEC 430 has three 30 Amp current output elements for performing single-phase or three-phase meter testing. When each element is combined using the optional open link cable harness, the UTEC 430 can source up to 90 Amps.
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Light Meters & Sensors
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The light meters and sensors product line at Gamma Scientific is extensive. Find sensors, light meters, photometers, radiometers, reference standard detector systems, and transimpedance amplifiers that meet your testing requirements.
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Product
SMA Male to SMA Male Cable, 50 Ohm, 30 cm
781846-01
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
2-Channel DAQ Module
FMC110
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Sundance Multiprocessor Technology Ltd.
The FMC110 is a dual channel ADC and dual channel DAC FMC. The FMC110 provides two channels of 12-bit A/D @ 1 GSPS and two channels of 16-bit D/A @ 1 GSPS enabling simultaneous sampling at a maximum rate of 1 GSPS. The sample clock can be supplied externally through a coax connection or supplied by an internal clock source (optionally locked to an external reference). Additionally a trigger input for customized sampling control is available.
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Optics
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Welcome to Thorlabs; below you will find links to optical components and systems, a subset of our entire line of photonics products. All single element optical components can be found under the optical elements link with the exception of optical components that have polarization properties since they have a separate link. Multi-element systems like beam expanders and objective lenses as well as interferometers, fiber collimators, reference cells, modulators, and other optical devices can be found by choosing the optical systems link. Thorlabs also manufactures an extensive line of free-space and fiber optic isolators; stock items ship the same day that they are ordered while our custom orders benefit from our streamlined design and manufacturing process, which minimizes lead time.
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Modular Mounts
M-SWITCH
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The M-Switch series of adjustable, modular mounts are designed to redirect a horizontal interferometric set-up to a vertical one. This vertical orientation can help reduce distortion effects commonly found from clamping, and reduce alignment time. There are 4 primary versions of hardware designed to enable testing of mirrors, windows, lenses and lens assemblies. Holding of the part under test can be done with a variable 3 arm mount (for flexibility) or our kinematic mount (for high volume). Reference mirrors can be supplied with a variety of flatness and coating specifications to match your application needs.
