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
Sound Level Meters
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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.
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Product
Master Reference Generator
Mentor
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Precision Time Protocol IEEE-1588 PTP grandmaster• Multiple video and audio formats in one box• Simultaneous 525/625 and HD Tri Level Sync outputs• Highly accurate GPS reference for synchronisation and timecode• Vector web-browser setup and monitoring tool• Redundant PSU option• Add upgrades and options without return to factory• Generates synchronised audio and video• Redundant units with changeover• 4K test pattern ready (future upgrade)
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Product
On-Line Gas Analysis System
Titan-OL
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The Titan-OL is a turnkey, process-ready gas analysis system. The analyzer and sample handling hardware can be wall or frame mounted in a NEMA enclosure suitable for use in production environments, including Class I, Div. 1. The integrated sampling system is fully purgeable and can handle multiple sample and reference lines.
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Product
Spectrum Analyzer
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The four traces used different windowing and averaging options. They were saved to Juxt Array memory and displayed with no added offset or spacing, to allow direct comparison. The selected trace in the array is shown with full brightness, to indicate that the cursor readouts and labeled Fields refer to this trace only. The other traces have been dimmed with the highlight control. The Juxt Trace Label Field has been set to show the contents of the Field labeled "Average", which is "32TC" for the selected trace.
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Product
PCI Express Timecode and GPS Reader Generator
PCIEX-SyncClock
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The PCI-Express time code reference timing card with standard options such as IRIG B and optional GPS receiver provides an extremely accurate time source to the PCI-Express bus.
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Product
Vector And Scalar Mixer / Converter Measurements
S95083B
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The Keysight S95083B measurement software includes the scalar mixer / converter plus phase (SMC+Phase) measurement class. It provides fully calibrated conversion gain / loss, relative phase, and absolute group delay measurements of mixers and converters without the need for reference or calibration mixers. Eliminating the calibration mixer requires a U9391C / F / G comb generator and an external DC power supply. A vector mixer characterization (VMC) is also included for measuring group delay of frequency-converting devices. VMC can be used to characterize a user-supplied calibration mixer.
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Product
OPTICAL PHASE NOISE TEST AND MEASUREMENT SYSTEM
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OEwaves’ HI-Q® Optical Test Measurement System utilizes a homodyne methodology for automated measurement capable of testing ultra-low phase noise laser sources. The user friendly test system is capable of rapidly measuring laser phase noise and estimating its FWHM linewidth down to < 3 Hz without complex setup or reference lasers normally required to make such a narrow linewidth measurement.
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Product
AC Reference Generators
SR25
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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”x3.1”x1”H.
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Product
pH & ORP Sensors
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The Barben Analytical Performance Series products are 3rd generation combination pH/ORP electrodes targeted at harsh, industrial measurement applications. High pressures, strong chemicals, and elevated temperatures typically shorten the lifespan of conventional double-junction pH probes. In these applications the Performance Series sensor offers extended sensor lifespan, as well as decreased drift, and longer calibration intervals. Each sensor is manufactured with our patented Axial Ion Path® reference technology, proprietary Low-Noise & High-Temp Signal Cable along with proprietary ruggedized, high temp and coat resistant glass formulations. A wide selection of sensor body styles and process fittings in a variety of corrosion resistant materials allow direct replacement of short-lived OEM pH/ORP sensors. Barben Performance Series sensors are compatible with all major manufacturers of pH analyzers and transmitters. Upgrade your analytical measurement without the hassle and expense of replacing costly field instruments.
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Product
Thermometer Calibrators
Check-Set Series
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Tel-Tru® Manufacturing Company
The Check-Set series is the perfect temperature reference device for plant quality assurance, process control, food safety, instrument calibration and service, and HACCP compliance (Hazard Analysis Critical Control Points). It is easy to use, reliable, accurate, and compatible with a wide range of dial and digital thermometers, filled system bulbs, and electronic temperature sensors.
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Product
COM-HPC Server Type Ice Lake-D Starter Kit
Software Development Kit
The COM-HPC Server Type Starter Kit consists of a COM-HPC Server Type module, memory, and thermal solution of your choice with an extended ATX size COM-HPC Server Type reference carrier board, as well as necessary cabling. It allows you to quickly emulate the functionality of your end product for software development and hardware verification. Carrier board design files (schematics, mechanical drawings), COM-HPC module drivers, BSP, and user manual are also offered to aid you in designing your own custom carrier board.
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Product
Active Filter
J2190A
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The J2190A active filter presents a high impedance (approximately 150kOhms) minimizing the loading of the circuit being tested. The output impedance is 50 Ohms allowing low noise coaxial connections to all typical test equipment. The 0.1Hz-10Hz noise band is common for opamp measurements, voltage regulators and voltage references. Many application notes offer schematics of such a filter for test purposes. An engineer’s time is much too valuable to be spent building test equipment. We have created a 4th order high pass and 4th order low pass filter with an optimally flat response and 0dB gain. Additional filters can be cascaded for even sharper cutoff.
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Product
4-Channel DAQ Module
FMC144
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Sundance Multiprocessor Technology Ltd.
The FMC144 is an analog-to-digital (A/D) and digital-to-analog (D/A) FMC daughter card that provides four 16-bit A/D channels at 370MSPS and four 16-bit D/A channels at 2.5GSPS which can be clocked by an internal clock source (optionally locked to an external reference) or by an externally-supplied sample clock.
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Product
Digital Pressure Gauge
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Precision digital pressure gauges are suitable for stationary and also mobile measurement and display of pressures. In addition, a digital pressure indicator can be used as a pressure reference and enables the easy testing, adjustment and calibration of other pressure measuring equipment directly on site. Through efficient measuring cells with electronic linearisation of the characteristic curve, a high accuracy is achieved.
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Product
Remote Radio Head Test, Reference Solution
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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".
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Product
Chromapoint Controller
ZENITH
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Sciences et Techniques Industrielles de la Lumière
ZENITH controller is the new reference for chromatic confocal controllers adapted to the industrial environment. Based on the Ethernet standard communication, ZENITH allows high precision measurements without contact and without risk of altering the parts.
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Product
Rectangular Horn Antennas
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SAGE Millimeter wave rectangular gain horns, also called pyramidal gain horns, are offered as both standard and custom models with a rectangular waveguide interface. The pyramidal gain horns only support linear polarization. With a calibrated gain chart, these horns can be used to measure the gain of other antennas by comparing the generated signal levels of both. For this reason, these horns are also referred to as standard gain horns. The listed models offer 23 dB nominal gain, 10/11 degrees typical half power beamwidth and 14 dB/30 dB typical side lobe levels at the center frequency of the band. These horns cover full waveguide bandwidths within the frequency range of 8.2 to 170 GHz. In addition to the models listed below, models with 10, 15, 20 and 25 dB gain and other frequency bands are also available.
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Product
Optical Power Meter
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Wuhan Sunma Technology Co., Ltd.
Optical Power Meter (OPM) is an essential fiber test instrument used for absolute optical signal measurement as well as fiber optic loss related measurement. The term usually refers to a device for testing average power in fiber optic systems. Fiber optical power meter is a tool for telecom and CATV network. This handheld optical power meter features ingenious appearance, wide range of power measurement, high accurate test precision and user automatic self-calibration function.
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Product
Launch Box & Pulse Suppressor
OTDR Sidekick
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Intended to eliminate the "dead zone" at the beginning of a fiber cable when using an OTDR, The Sidekick from M2 Optics is a compact, durable solution for both field and laboratory use. Commonly referred to as a launch box, pulse suppressor, or launch cable, this durable test box is also used as a fiber optic delay line and for a variety of other short-distance testing and training applications.
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Product
SH68F-68F-EPM Cable, 68-Pin Female to 68-Pin Female, Twisted Pair, Shielded Multifunction Cable
99006-10
Multifunction Cable
68-Pin Female to 68-Pin Female, Twisted Pair, Shielded Multifunction Cable - The SH68F-68F-EPM Cable, sometimes referred to as SH68-68-EPM, connects NI DAQ 68-pin devices to 68-pin accessories. The SH68F-68F-EPM Cable has D-type connectors and is offered in different lengths.
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Product
Pulse & Delay Generators
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The benchtop pulse generators feature a fast risetime and low jitter. Our most popular digital delay pulse series 575 and 577 generators are now available with selectable time references. With up to eight channels of delay and width control, each individual channel's reference can be set either to the trigger or to any other channel. So look below if you require a picosecond pulse generator or nanosecond pulse generator for your application.
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Product
Waveguide Amplifiers
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VDI offers waveguide amplifiers for various applications. Waveguide amplifiers are able to boost a small input RF signal to a large output RF signal. For sample data on waveguide amplifiers, please refer to the Waveguide Amplifier Product Manual (also located under Resources). Please contact VDI for more information.
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Product
Thermocouple Vacuum Gauge Tubes
DV-6 Series for Medium Vacuum
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Teledyne Hastings, manufacturer of the original DV-4, DV-5, and DV-6 thermocouple vacuum gauge tubes, produces vacuum measurement equipment with exceptional stability, accuracy, and reliability under the most demanding conditions.The Teledyne Hastings’ DV-6 series thermocouple vacuum gauge tube acts as a localized sensor which is then paired with a selection of meters or controllers to provide reliable, cost-effective measurements in diverse applications. The robust sensor gauge tube is easily installed into vacuum systems and when properly excited, generates a thermoelectric voltage to provide a vacuum pressure measurement based on gas density. The DV-6 thermocouple vacuum gauge tube fully compensates for temperature and rate of temperature change.Thermocouple gauge tubes are calibrated on vacuum systems that contain N2 or Air, but can be used with other gases. Additionally, thermocouple gauges and their controllers can be recalibrated when a replacement thermocouple gauge tube is installed, following instructions in the manual. However, our DB-20 reference tube is available to confirm meter/controller performance. A complete line of installation accessories are also available to simplify the integration of our thermocouple gauge tubes into a variety of vacuum systems. Our goal is to provide “one less thing to worry about”, when performance matters! With a wide range of meter, fitting, relay and output options, the DV-6 series provides a reliable pressure measurement in numerous industries and applications.
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Operational Amplifiers
Op Amps
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For designs requiring operational amplifiers (op amps), Analog Devices' portfolio of high speed op amps and precision op amps provides a broad choice of products that deliver unmatched performance. Explore op amps by parameters, and find expert system-level advice on design problems with our amplifier reference designs (Circuits from the Lab®), design tools, selection guides, calculators, and SPICE models.
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Temperature Indicators
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AMETEK Sensors, Test & Calibration
Our temperature indicators, combined with STS sensors, are fully traceable reference thermometers used to verify temperature in any type of calibrator, liquid bath, or dry-blocks. Combine with both “smart” and standard temperature sensors to directly measure critical temperatures in process environments and custody transfers. The DTI series includes one portable bench top indicator and one light-weight, hand-held indicator.
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Product
Material Solutions
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Leverage Altair’s material engineering, data organization, and consolidation expertise using the latest database technologies with Altair material solutions. Our material solutions use high-quality reference data and enables the consolidation of extensive proprietary material information intelligence into one secured private source. The solutions cover the processes to collect, prepare, create, share, collaborate, and consume material information from anywhere.
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Product
Scanning Probe Microscopy/Atomic Force Microscopy (SPM/AFM Analysis)
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Rocky Mountain Laboratories, Inc.
Scanning probe microscopy (SPM) refers to a family of measurement techniques that utilize a scanning probe. The most common measurement is Atomic Force Microscopy (AFM Analysis), which measures surface topography. Imaged areas can be from the nm scale to as large as 100 µm X 100 µm. Heights and depths of features can be measuredand many surface roughness parameters, e.g Ra, can be calculated. 3-D images can also be produced for dramatic data presentation. Magnetic and electrical response can also be measured with SPM.
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Potentiostats and Galvanostats
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Potentiostats are feedback amplifiers which control an electrode to a certain potential with respect to a reference electrode. They may control microelectrodes in animal or herbal cells, and the current is measured in picoamperes, or large-area electrodes in batteries or production cells.
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Product
Precision Stage with Linear Piezo Drive
M-664
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Physik Instrumente GmbH & Co. KG
Self-locking, with no heat generation at rest. Excellent start/stop dynamics. Crossed roller bearings. Non-contact limit and reference point switches
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Product
Fast Performance Check For Your Moisture Analyzers
SmartCal
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SmartCal is an innovative test substance that offers a fast way to verify the performance of your moisture analyzer. Testing it regularly with SmartCal ensures that your moisture measurements are reliable all the time. Learn more about performance testing and how SmartCal ensures trusted results. The SmartCal test takes just 10 minutes and it is done in the same easy way as a regular measurement. It is an ideal reference substance because a specific amount of moisture is released depending on the drying temperature selected. SmartCal measurement reports make it easy to monitor and interpret your instrument's performance over time. Results can be stored directly in the instrument or manually entered into our free validated Excel report sheet.
