Rubidium Reference
In telecommunication, a rubidium standard is a frequency standard in which a specified hyperfine transition of electrons in rubidium-87 atoms is used to control the output frequency. (www.encyclopedia.thefreedictionary.com)
See Also: Rubidium Standards
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SR Series AC Reference Supplies
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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Reference Transmitter
81491A
Keysight's 81491A Reference Transmitter is designed to offer excellent eye quality for NRZ and PAM4 signals at baud-rates up to 32Gbaud and can serve as universal E/O converter. It comes in Multimode (MM) and Single-Mode (SM) flavors and includes internal lasers at 850nm (MM) or 1310&1550nm (SM). External optical input for usage with tunable laser sources is available for SM option. It is fully integrated into Keysight’s Optical Receiver Stress Test solutions to address test requirements of IEEE 802.3 10,40,100 and 400GBASE optical standards.
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5VA Reference Supply, DC input
PS5410C-16
The PS5410C-16 is a 5VA AC Reference Power Supply, available with many transformer isolated output voltages at different frequencies. Input power is either 12 VDC or 15 VDC. The standard 15 pin "D" connector simplifies interconnection to other equipment.
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Three Phase High Precision Reference Standard Energy Meter
SY3102
Hong Kong Songyang Industrial Ltd.
There are three ports for pulses to output. And its constants can be set automatically or manually. Types of constants can be set also: active power, reactive power, apparent power, voltage, and current.
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Temperature and Humidity Reference Table
HM2000
HM2000 temperature and humidity reference table has low deviation, high accuracy and stability reaching measurement level.
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NI Real-Time Test Cell Reference System
778820-35
DIAdem Advanced with DAC Bundle, Perpetual License, Include 1 Year SSP
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Reference Grade Expandable Production Interface
Atlas
Atlas and Titan are world class multi-track interfaces offering flexible expansion and unsurpassable sonic clarity. Using the latest generation of Prism Sounds trusted conversion, Atlas provides more preamps than Titan making it suitable for a wider range of recording scenarios.
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Reference Grade Compact Audio Interface
Lyra 2
Lyra represents the pinnacle of compact audio interfaces. Packing Prism Sounds trusted, uncompromising AD/DA conversion into a compact chassis perfect for use in the studio or on the road.
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COM-HPC Server Type Reference Carrier Board in Extended ATX Form Factor
COM-HPC Server Base
The COM-HPC Server Base is an extended ATX size COM-HPC Server Type reference carrier board based on PICMG COM-HPC Revision 1.0. Together with the COM-HPC Server Type module of your choice and off the shelf add-on cards, you can quickly emulate the functionality of your desired end product for software development and hardware verification.
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NI Real-Time Test Cell Reference System
780590-35
VeriStand Full Development License with NI Standard Service , Include 1 Year SSP
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Reference Antennas
Type NRD
Reference antennas are precision dipole antennas that offer a fixed 2.15 dB of gain over an isotropic antenna along the major lobe axis at specified frequencies (2.15 dBi). They are intended to be used for antenna field pattern and gain measurements, or general RF sensing in the laboratory.
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Reference Magnet
Reference magnets generate a homogeneous magnetic field in an air gap. They are mainly used to calibrate hall probes for their full scale value of output for the magnetic field strength H or the magnetic flux density B they measure. For example Gaussmeters can be calibrated by using reference magnets.
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COM Express® Type 2 Reference Carrier Board in ATX Form Factor
Express-BASE
The COM Express approach of custom carrier combined with off the shelf system cores is an excellent solution when you need to customize but lack the time or quantity for a complete redesign. It fits most system integration projects with production volumes from 500 to 10,000 pcs per year. The COM Express concept has a great many advantages over full custom designs, it reduces engineering complexity, lowers the threshold for total project quantity and last but not least brings your product to the market in no time. The average time to design a carrier board is less than half the time of a full custom OEM board.
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Shunt Voltage References
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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Redundant Reference Frequency Shaper
CH7-317
Redundant reference frequency shaper Ch7-317 is designed to generate and reproduce frequency and time signals protected from frequency and phase failures based on the results of signal processing from a group of frequency and time keepers.
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Reference Supplies
Advanced Energy's Trek reference supplies offer both high temperature and time stability outputs. They can also be used as a secondary traceable standard.
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Voltage References
Renesas' wide selection of voltage reference (Vref) circuits offer accurate and stable reference voltages unaffected by external influences such as variation in temperature, input voltage and time.
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Benchtop Rubidium Frequency Standard
FS725
Stanford Research Systems, Inc.
The FS725 integrates a rubidium oscillator (SRS model PRS10), a low-noise AC power supply, and distribution amplifiers in a compact, half-width 2U chassis.
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High Accuracy AC Reference Source
515
Clarke-Hess Communications Research
The Model 515 High Accuracy AC Reference Generator fills a need for a relatively low cost and practical solution for supplying a reference excitation to typical LVDT and Synchro/Resolver transducers. The Model 515 has built-in load sensing which, in effect, yields "zero" output impedance and virtually eliminates the effects of fluctuating output loads. With up to 15 VA of output into loads with as much as 80 of phase shift, the Model 515 is ideally suited to driving inductive loads.
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AC Reference Generators
SR22
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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Standard Step Tablets, Gray Scales & Density Reference Charts
Standard Step Tablets, Gray Scales & Density Reference Charts are available in a wide variety of patterns, designs and sizes to fit a multitude of today’s application needs. Our gray scales and density patches are measured on a variety of NIST traceable instrumentation, including some of the most sophisticated microdensitometers available to the industry. They are imaged on either Photo Paper (RM) or Film (TM) to function for reflective or transmissive applications.
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3207a GPS/GNS Frequency and Time Reference
Precise Time and Frequency, Inc.
The ptf 3207A GlobalTyme2 GNS Receiver introduces a new level of advanced capability from a second generation, based on the highly successful ptf 3203A and ptf 3204A GlobalTyme receivers.The unit is both a frequency standard and a time standard and has been used as a precision frequency reference with low phase noise, in satellite communications applications around the world.
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10 Volt Reference
8110A
Measurements International Ltd.
8110A 10 volt reference, Industry Leading Stability, Built-in reversing switch for + 10 V, – 10 V, 30 Days: ± 0.25 µV/V, 90 Days: ± 0.75 µV/V, 1 Year: ± 1.5 µV/V, Built-in battery backup.
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Reference Clock T Connector
780540-01
The SMA-SMA-SMA T Connector, sometimes referred to as the Reference Clock T Connector, connects RF wireless test devices and PXI modular instruments to other accessories. It is a 50 ohm … impedance connector that measures 0 GHz to 10 GHz.
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Attitude And Heading Reference Systems
AHRS
Beginning in 2001, Inertial Labs began manufacturing its MEMS-based, IP-67 sealed, MIL-STD-810G qualified, multiple interfaces and COM ports Attitude and Heading Reference System in response to the need for an inclusive and price competitive Antenna Pointing, Aiming, and Stabilizing applications. Each INS contains an Inertial Labs-developed tactical or industrial-grade inertial measurement unit (IMU) and an Inertial Labs-manufactured high-precision Fluxgate magnetometer.
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Attitude Heading Reference System
M&M Modules
PNI’s M&M modules will self adapt and learn its system and its environment automatically to provide accurate quaternions, heading, pitch and roll. All while using 100 times less power than traditional AHRS modules.
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Slag & Refractory Reference Materials
NCS Testing Technology Co., Ltd.
Slag & Refractory Reference Materials by NCS
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Heading Reference Directional Gyroscopes
4000HR-series
The 4000HR air-driven directional gyro offers some of the best features of our other popular models. It inherited all of the functionality and reliability of the industry standard 4000B upon which it’s based, and it picked up a heading reference bug from the 4000C autopilot model.
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Solution Standard Reference Materials
NCS Testing Technology Co., Ltd.
Solution Standard Reference Materials by NCS
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Reference Measuring System
SMG-R
Reference peak voltage meter SMG-R for precise measurement of high voltage. This PEAK voltmeter has higher accuracy and the measuring divider has a very high stability.
