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
GPS Time and Frequency Standards
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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.
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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
Digital to Synchro Converters
DSP
Digital / Synchro Converter
Computer Conversions Corporation
The DSP Series are high efficiency, AC Reference powered, Transformer Isolated, continuously updating “whole” Digital to Synchro Converters, designed for high performance Military and Industrial applications.
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Product
LabVIEW Communications Application Frameworks
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The Application Frameworks are software reference designs that provide a rich set of high performance FPGA IP for prototyping real-time wireless communication systems. When combined with NI’s line of software defined radios, the Application Frameworks form a complete hardware and software prototyping platform that enables researchers to accelerate their prototyping efforts and achieve results quickly.
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Product
8-Channel ADC Module
FMC108
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Sundance Multiprocessor Technology Ltd.
The FMC108 is an eight-channel ADC FMC (FPGA Mezzanine Card) which is fully compliant with the VITA 57.1-2010 standard. The FMC108 card provides eight A/D 14-bit 250MSPS channels which can be sampled by an internal clock source (optionally locked to an external reference) or an externally supplied sample clock. A trigger input for customized sampling control is also available. The FMC108 has the HPC (high-pin count) connector, front panel I/O, and is conduction cooled compliant. The board is also available with Mil-I-46058c compliant Conformal Coating.
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Calibrated Solar Reference Cell
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To insure repeatable testing on any solar simulator, OAI offers 2cm x 2cm calibrated reference cells. Standard reference cell calibration cycles can be set up by OAI''s calibration laboratory to insure that your reference cell maintains certification.
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Product
Isolation Measurement System
DM-8000H
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*The input block, control block and display block are isolated with optical fiber cables. (DM-900A/AL, DM-910A/AL)*Frequency bandwidth: DC to 500MHz.*Simultaneous multi-channel measurement of many channels of different reference potentials. (2 to 24 channels) (DM-900A/AL)*Long-life battery drive. (The system can be driven by three batteries for about 12 hours) (DM-900A/AL, DM-910A/AL)*Measurement using long memory. (DM-900A/AL, DM-910A/AL)*Simultaneous measurements of the inverter's switching waveform and ON-voltage. (DM-910A/AL)
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Radiation Detectors
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A radiation detector is a device for measuring nuclear, electromagnetic or light radiation. A nuclear radiation detector identifies nuclear radiation by measuring the emission of ionizing radiation of alpha particles, beta particles and gamma rays. Also referred to as a geiger counter, a nuclear radiation detector consists of two main elements: the processing electronics and the geiger tube. The geiger tube is filled with low-pressure inert gas like helium, argon or neon. If radioactive radiation occurs, the inert gas is ionized. An anode within the geiger tube registers the quantity of ionized particles numerically correlating with the strength of the radioactive radiation. The radioactivity measurement is then displayed on the LCD screen of the geiger counter or nuclear radiation detector.
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Product
FPGA Mezzanine Card
FMC160
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The FMC160 provides one 12-bit A/D channel at 3.6Gsps and one 14-bit D/A channel at 5.7Gsps (2.85Gsps direct RF synthesis) clocked by either an internal clock source (optionally locked to an external reference) or an externally supplied sample clock. In addition, a trigger input for customized sampling control is available to users. It is mechanically and electrically compliant with the FMC standard (ANSI/VITA 57.1).
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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
Frequency Synthesizers
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A frequency synthesizer allows the designer to generate a variety of output frequencies as multiples of a single reference frequency. The main application is in generating local oscillator (LO) signals for the up- and down-conversion of RF signals.
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Current Transformers & Bushings
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Measurements International Ltd.
AC Current Transformer, Reference Standard for the Calibration of Precision CTs, Currents as high as 10,000 A, Portable with carrying handle for smaller CTs, Wheels on heavier CTs, Passive or Electronically Aided Compensation.
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Reference Standard
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Beijing GFUVE Electronics Co.,Ltd.
It has been designed for universal laboratory and test applications and is intended for checking and the calibration of reference standards for electrical power and energy.
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Product
Dual Channel High Voltage Linear Amplifier
F1020
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This unit contains two independent amplifiers that share common ground reference and power supply. Left channel correspond to the F10A model and right channle corresponds to the F20A model.
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Reference Sources
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A physical or digital document that you would refer to for more information about a topic.
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Product
Extended Length RTSI Bus Cables for 5 PCI or AT/ISA Devices
777562-05
BUS Cable
34-Pin Female RTSI to 34-Pin Female RTSI Ribbon Cable - The RTSI Cable, sometimes referred to as RTSI, connects RTSI bus connectors on adjacent NI plug-in boards. The RTSI Cable is offered with different numbers of ribbon connections and in different lengths.
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Product
3-Slot Data Acquisition Mainframe With Three 20-Channel Multiplexer Modules
DAQ970MB
Mainframe
The DAQ970MB Good Multiplexer Bundle offer includes a DAQ970A three-slot data acquisition mainframe and three 20-channel DAQM901A multiplexer modules. This bundle provides the following:3-slot mainframe with USB and LAN6.5-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 junctionbuilt-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
1 GHz A/D and D/A with Virtex-7 FPGA - 3U VPX
Model 52730
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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 multiboard synchronization- PCI Express (Gen. 1 and 2) interface up to x8- Optional LVDS connections to the Virtex-7 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 (OpenVPX System Specification)- Ruggedized and conduction-cooled versions available
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Series Voltage References
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Analog Devices offers a broad line of series voltage references with low dropout, low power, and excellent line regulation. These devices are voltage references that are functionally similar to a three-terminal regulator. Some series voltage references are designed to also operate in shunt mode by biasing the output pin and leaving the input pin open circuit. Series mode voltage references have the advantage that they draw only load and quiescent current from the input supply.
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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
Sound Power Reference Source
Qref
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Precision omni-directionallity in all directions, horizontal and vertical plane. This source has a frequency range of application between 100 and 8000 Hz (third octave bands) Despite only weighing 1.4 kg and having a diameter of 105 mm, it produces a maximum sound power level of Lw 104 dB.
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1 GHz A/D and D/A with Virtex-6 FPGA - 3U VPX
Model 52630
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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- One GHz 12-bit A/D- One 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- 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- Synchronize up to twelve modules with Model 9192 System Synchronization and Distribution Amplifier- 1U Rack-mount
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Product
Carrier Board Design and Software Verification Computer-on-Module Starter Kit
Starter Kit - ETX
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- ETX module of choice- CPU, Memory of choice- Thermal Solution (heatspreader, and heatsink) of choice- Reference Carrier Board- Schematics, Design Guide, and User Manuals- ADLINK USB Stick with Documentation, Software
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Product
DC - 400 MHz PC-Based Timer Interval Analyzer
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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
1231a Very High Frequency Distribution
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Precise Time and Frequency, Inc.
The ptf 1230A(1U)/1231A(2U) GPS L-Band RF Distribution amplifiers provide high performance GPS signal references for laboratory or systems use. In most applications the low noise and signal gain capability of the units will provide userswith a robust GPS signal source for lab or system requirements.The ptf 1230A/1231A uses individually buffered output stages and insures maximum isolation between the individual outputs. The ptf 1231A offers 12 outputs. Options are available for a 2U/3.5” version (ptf 1230A) with 24 outputs.Isolation from output to output is >-40 dB. The input also offers DCV for biasing an active antenna.
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Product
EcoTestr™ pH1 Waterproof Pocket Tester
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The economical, simple-to-use pH tester measures pH levels and temperatures quickly, displaying them both simultaneously on a large dual-line LCD. It has a pH range from 0 to 14 with an accuracy of ±0.1 pH. The tester features up to three pH calibration points with auto NIST and US buffer recognition. Additional features include a long-lasting durable electrode with polymer reference electrolyte; status icons for measurement stability, calibration, and battery life; and self-diagnostics. The IP67-rated housing features an easy-to-grip design and floats if accidentally dropped in water when sensor cap is on. The tester, powered by four AAA batteries, can operate up to 400 hours continuously. The unit will auto power-off after 8 minutes of nonuse to conserve power.
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Synchro to Digital and Resolver to Digital Converters
Digital / Synchro Converter
Computer Conversions Corporation
Resolution: Up to 20 Bit Single-speed Resolution, Up to 24 Bits Multi-Speed Multi-Turn Resolution.Accuracy: +/- 7 to +/-19 arc seconds 20 bit, +/-40 arc seconds 16 bit, +/- 1',+/-2.3 and +/-4' Reference Inputs: 2- 11.8V 26/ 115Vrms L-L 47 to 10,000 Hz. Isolated to > 500VDCSignal Inputs: 2 - 11.8, 26, 40, 90V.L-L. Isolated to . 500VDC.Options: Multispeed synchro input and bus card interface.
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Product
1229a Frequency Generator
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Precise Time and Frequency, Inc.
The ptf 1229A utilizes the latest technological advances in precision frequency synthesizers to provide a multiple output, wide range, high precision frequency reference instrument, capable of delivering frequencies over the range of 0.1Hz up to 30MHz with a resolution of 0.1 Hz over the full range.The unit includes an external reference input to allow extremely high accuracy outputs at precisely the frequency required, together with a front panel indicator to verify “lock” to the external reference. The standard unit includes two independent frequency outputs of any frequency within the range, and provides both sine and square wave outputs for each frequency.An expansion module gives the capability to increase the number of independent frequency outputs up to a total of four frequencies, with sine and square wave outputs for each, giving a total of eight outputs.
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Product
CABLE ASSY, Type SH100-100-FLEX, 2 m
185095-02
Multifunction Cable
The SH100M-100M Flex Cable, sometimes referred to as SH100-100-F, connects NI digital I/O devices to 100-pin accessories with D-SUB connectors. The SH100M-100M Flex Cable is offered in different lengths.
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Product
3 Digit LCD Voltmeter
DPM 2000
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The DPM 2000 is a 3 digit LCD voltmeter with 12.5mm (0.5") digit height. It features 200mV d.c. full scale reading, a bandgap reference, auto-zero, auto-polarity and a set of annunciators. The meter plugs directly into a DIL socket or can be panel mounted using the bezel and window. Connection to the meter is via two rows of pins.
