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Products/Services for Time and Frequency Standards

<B>Time</B> and <B>Frequency</B> <B>Standards</B>
Time and Frequency Standards - (20 companies)

Time standards and frequency standards can include cesium or rubidium atomic clocks, quartz oscillators, hydrogen masers and other master clocks. Time reference sources are used in networks & telecommunications, observatories, utilities and navigation (GPS). Learn More about Time and Frequency Standards

Calibration Instruments
Calibration Instruments - (505 companies)

...include AC voltage, DC voltage, AC current, and DC current. Calibration instruments that produce a pulse stream, pulse range, or frequency range are also available. Signal and waveform generators are designed to produce a sine wave, square wave... Search by Specification | Learn More about Calibration Instruments

Calibration <B>Standards</B> and Reference Sources
Calibration Standards and Reference Sources - (369 companies)

Calibration standards and reference sources include any source that can provide a reference for the calibration of an instrument or comparison of a material or component. Search by Specification | Learn More about Calibration Standards and Reference Sources

Codes, <B>Standards</B> and Regulations
Codes, Standards and Regulations - (88 companies)

Codes, standards and regulations are developed, maintained, and promoted by regulatory agencies, engineering societies, and trade organizations. Search by Specification | Learn More about Codes, Standards and Regulations

PLL <B>Frequency</B> Synthesizers
PLL Frequency Synthesizers - (58 companies)

Phase-locked loop (PLL) frequency synthesizers are electronic devices that produce frequencies coherent to a reference frequency. Search by Specification | Learn More about PLL Frequency Synthesizers

<B>Frequency</B>-to-Voltage Converters
Frequency-to-Voltage Converters - (77 companies)

Frequency-to-voltage converters accept a signal and convert its frequency to a corresponding analog voltage level. Search by Specification | Learn More about Frequency-to-Voltage Converters

<B>Frequency</B> Meters
Frequency Meters - (92 companies)

Frequency meters are instruments that provide analog outputs as frequencies that vary as a function of the applied input. They display values on a dial, usually with a needle or moving pointer. Search by Specification | Learn More about Frequency Meters

Spectrum Analyzers and Signal Analyzers
Spectrum Analyzers and Signal Analyzers - (203 companies)

Spectrum analyzers and signal analyzers display raw, unprocessed signal information such as voltage, power, period, wave shape, sidebands, and frequency. They can provide the user with a clear and precise window into the frequency spectrum Search by Specification | Learn More about Spectrum Analyzers and Signal Analyzers

Inductance <B>Standards</B> and Decades
Inductance Standards and Decades - (10 companies)

Inductance standards and decades provide highly accurate and digitally variable standard values of inductance for calibration, comparison and testing. Search by Specification | Learn More about Inductance Standards and Decades

Specialty IC <B>Timing</B> Devices
Specialty IC Timing Devices - (21 companies)

Specialty IC timing devices are specialty or proprietary products related to IC timing devices. Learn More about Specialty IC Timing Devices

<B>Frequency</B> Discriminators
Frequency Discriminators - (10 companies)

Frequency discriminators are RF or microwave devices that are used to detect a signal with a particular frequency. Search by Specification | Learn More about Frequency Discriminators

<B>Frequency</B> Synthesizers
Frequency Synthesizers - (82 companies)

Frequency synthesizers are electronic devices that generate frequencies by using a combination of other frequencies. Search by Specification | Learn More about Frequency Synthesizers

<B>Standard</B> Keypads
Standard Keypads - (160 companies)

Standard keypads are standard size membrane or carbon pill keypads. Search by Specification | Learn More about Standard Keypads

<B>Frequency</B> Counters
Frequency Counters - (89 companies)

Frequency counters are digital indicating meters for accurate measurement and display of square wave and pulse input signals. Learn More about Frequency Counters

Digital Multimeters
Digital Multimeters - (469 companies)

Digital multimeters (or multi-meters) are used to measure electrical quantities such as voltage, current, resistance, frequency, temperature, capacitance, and time period measurements. Search by Specification | Learn More about Digital Multimeters

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Product News for Time and Frequency Standards

Radiall
SSMB-SSMC-SSLB Proven Reliable at High Frequencies

Radiall's micro-miniature SSMB-SSMC-SSLB connectors are the most popular and versatile solutions for numerous high frequency, high density applications on the market today. (read more)

Rush Gears Inc.
Timing Pulleys - Made-to-Order Timing Pulleys

Timing belts and pulleys offer a positive drive through the engagement of the molded teeth in the belt with accurately spaced grooves on the pulley. The action of the belt teeth entering and leaving the pulley grooves is positive, smoother operating and more silent than other types of drives. (read more)

Browse Rigid Couplings Datasheets for Rush Gears Inc.
Valley Forge & Bolt Mfg. Co.
Specialty & Standard Bolts for Off-Shore Industry

Valley Forge & Bolt Manufacturing Co. has been in business for over 29+ years serving the Offshore Industries with domestic manufactured high quality fasteners. We offer innovative products that promote safety of critical joints as well as reducing maintenance time and frequency of servicing these joints. (read more)

Ernst Timing Screw Company
Timing Screws, Straight-Root Design

Since 1957 Ernst Timing Screw has provided it's customers with the best quality timing screws on the market. Timing screws form Ernst can be made out of many different materials, colors, lengths & diameters. Our timing screws can also handle any shape container including round, square, oval, and triangular. (read more)

GFS Chemicals, Inc.
Turbidity Testing - meters and standards

GFS manufactures AMCO Clear EPA approved turbidity standards for water testing. In addition, we are distributors for many instrument manufacturers including HF Scientific, Hanna, Rosemount and McVan Instruments. (read more)

Fluke Corporation, Hart Scientific Division
Fluke 6100A Electrical Power Standard

With the release of the 6100A Power Quality Standard, Fluke Precision Measurement provides a highly accurate, scalable system for calibrating power measurement tools to meet the new demands of the global market. (read more)

Browse Calibration Standards and Reference Sources Datasheets for Fluke Corporation, Hart Scientific Division
Kin-Tek Laboratories Inc.
491M Modular Gas Standards Generator

KIN-TEK's 491M Modular Gas Standards Generator can generate gas mixtures from permeation tubes, diffusion tubes and/or compressed gas cylinders to simultaneously deliver one or more calibration standards directly to your FTIR, GC, GC-MS, Ion Mobility Spectrometer or any type of gas analyzer or environmental chamber. (read more)

GFS Chemicals, Inc.
Spectrophotometric and Optical Standards for QC/QA

Do your SOPS require a check standard to verify your instrument is reading properly?

As you know, small changes to your instrument can affect your results

GFS Chemicals offers standards to check the overall health of your instrument

  • Wavelength Standards
  • Photometric Standards
  • Stray Light Standards
(read more)
Kin-Tek Laboratories Inc.
FlexStream Gas Standards Generator

KIN-TEK's new FlexStream™ automated gas standards generating instrument offers flexibility for creating precision gas mixtures. Mixtures are produced by diluting the emission from permeation tubes, or diffusion tubes, with an inert diluent, typically nitrogen or zero air. The FlexStream™ is ideally suited for creating trace concentration - ppm, ppb, and pptr - mixtures. (read more)

Fluke Corporation, Hart Scientific Division
1529 Chub-E4 Standards Thermometer

So you need multiple channels, battery power, outstanding accuracy, and the ability to read many different sensor types—but you don't need all the power of a 1 ppm Super-Thermometer. We have the answer for you.

Hart's 1529 Chub-E4 Thermometer gives you four channels, three major sensor types, lab-quality accuracy, and a ton of great features, all at a price you'll love. (read more)

Browse Digital Thermometers Datasheets for Fluke Corporation, Hart Scientific Division
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Conduct Research

Engineering Web Search: Time and Frequency Standards
NIST: Time and Frequency Division - Division 847
Standards The division develops and maintains the primary standards for frequency and time interval in the United States.
National Institute of Standards and Technology
Time and frequencystandards of time and frequency; dissemination of timing information using radio broadcasts and the Internet.
JPL's Frequency Standards Lab
The Frequency Standards Laboratory houses the National Aeronautics and Space Administration's (NASA) Lead Center for Frequency and Time.
[IGSMAIL-1774 IGS/BIPM Project for Time and Frequency...
(USNO) and Claudine Thomas (BIPM) Subject: IGS/BIPM Project for Time and Frequency Comparisons INTERNATIONAL GPS SERVICE FOR GEODYNAMICS (IGS) BUREAU
NATIONAL INST OF STANDARDS AND TECHNOLOGY BOULDER CO TIME AND...
NATIONAL INST OF STANDARDS AND TECHNOLOGY BOULDER CO TIME AND FREQUENCY DIV
See Storming Media LLC Information
NATIONAL BUREAU OF STANDARDS BOULDER CO TIME AND FREQUENCY...
NATIONAL BUREAU OF STANDARDS BOULDER CO TIME AND FREQUENCY DIV
See Storming Media LLC Information
Fluke Test Tools, Answering Your Electronic, Electrical,...
Home | Products | Calibration Instruments | Time and Frequency Instruments Time and Frequency Instruments Time and Frequency Instruments
Intel® PRO/Wireless Network Connection for Mobile -...
Standards Intel Developer Forum Communities
See Intel Corporation Information
Time dilation - Wikipedia, the free encyclopedia
2.1 Velocity time dilation tests 2.2 Gravitational time dilation tests
Quartzlock - Precise Time&Frequency for...
electronics and physics for high-stability time & frequency standards, references, calibrators, frequency & phase analyzers and rf distribution
See Quartzlock (UK), Ltd. Information

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