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Metrology & Calibration Standards

Feel confident that Keysight metrology is behind every measurement you make

Measurement confidence

Know that every measurement is traceable to National Metrology Institutes (NMIs) through Keysight-engineered calibration procedures that verify instrument specifications.

Metrology advances

Rely on Keysight engineers who work with the NMIs to develop rigorous measurement techniques in existing and emerging technologies.

Shared expertise

Stay up-to-date on changing compliance requirements and their practical applications by working with Keysight metrologists who collaborate with international standards organizations.

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E4416A/E4417A EPM-P Series Power Meters and E-Series E9320 Peak and Average Power Sensors 
This data sheet covers the specifications for the E4416A/E4417A EPM-P series power meters and the E-series E9320 peak and average power sensors.

Data Sheet 2014-11-25

Evaluation of the Performance of a State-of-the-Art Digital Multimeter - White Paper 
Describes several methods used to verify the performance of a very accurate automatically calibrated DMM, the HP 3458A.

Application Note 2014-10-02

PDF PDF 963 KB
Uncertainty Propagation for Measurements with Multiple Output Quantities 
Measurements with multiple output quantities exist in many disciplines. This paper discusses using matrix notation, which can be applied to a practical measurement uncertainty example involving complex quantities.

Analysis Tool 2014-08-20

Understanding Measurement Risk - White Paper 
An intuitive explanation of probability density functions drawing on Monte Carlo simulation to demonstrate the relationship between a device's true values and corresponding measured value.

Application Note 2014-08-12

PDF PDF 735 KB
Language of Specifications - White Paper 
This paper explains some of the arcane language used in describing a product's characteristics.

Application Note 2014-08-03

PDF PDF 1.08 MB
Specifications Guidelines - White Paper 
Keysight Technologies has definitions for its Test & Measurement product specifications and how they are presented. The following material is extracted from these manufacturing recommendations.

Application Note 2014-08-02

PDF PDF 366 KB
Paperless Calibration - White Paper 
Discusses the benefits of storing calibration records electronically rather than on paper in filing cabinets and explains why having a hard copy of these files is not necessary.

Application Note 2014-08-02

PDF PDF 215 KB
Business Considerations of Equipment Refresh in a Calibration Laboratory by Richard Ogg 
Calibration laboratories operate in a world of constant change, and this is never more evident than in the products that are requested to be calibrated.

Application Note 2014-08-01

Uncertainty Analysis for Uncorrelated Input Quantities - White Paper 
The Guide to the Expression of Uncertainty in Measurement (GUM) has been widely adopted in the different fields of the industry and science. Learn how to use for uncorrelated input quantities.

Application Note 2014-08-01

PDF PDF 1.64 MB
Calibration and Specification Considerations When Using Modular Instrumentation - Application Note 
Modular instruments such as PXI and AXIe offer significant configuration flexibility, interchangeability, speed, and size advantages but also present unique calibration challenges. This paper examines these issues in detail and considers both in situ calibration and calibration performed outside the use environment.

Application Note 2013-11-01

PDF PDF 312 KB
How Senior Managers Perceive the Importance of Calibration - White Paper 
This paper, presented at the National Conference of Standards Laboratories International July 2013, discusses the importance of measurement accuracy and the financial impact it can have on the bottom line.

Application Note 2013-07-01

PDF PDF 1.78 MB
Setting and Adjusting Instrument Calibration Intervals - Application Note 
This document explains how Keysight determines the recommended calibration interval, and why and how this can be extended or reduced.

Application Note 2013-06-11

Calibration of Time Base Oscillators - White Paper  
As more accurate clocks were produced, new uses of time measurement were explored. As new uses were discovered, the need for even more accurate clocks became apparent.

Application Note 2012-12-21

PDF PDF 438 KB
Crystal Oscillator Testing - White Paper 
A policy concerning the testing of the reference oscillators contained within many instruments has been defined and adopted in Keysight's service centers worldwide.

Application Note 2012-12-21

PDF PDF 1.41 MB
Selecting a Calibration Vendor - White Paper 
Cost is important but are there any other questions that need to be asked in selecting a calibration supplier?

Application Note 2012-12-11

PDF PDF 1.38 MB
Using a Manufacturer's Specification as a Type B Error Contribution - White Paper 
Examines the implications of using a manufacturer's specification in an uncertainty analysis; and how calibration laboratories use uncertainty data in their quality systems and customer-facing documents.

Application Note 2012-12-10

PDF PDF 1.13 MB
Spectrum Analyzer CW Power Measurements and the Effects of Noise - Article 
This paper examines how to configure a spectrum analyzer to measure a low-power continuous wave (CW) signal so that the trade-off between measurement time and accuracy is optimized.

Article 2012-12-01

PDF PDF 386 KB
Instrument Design Validation and Recommended Calibration Policy - White Paper 
Provides background information on the test philosophies and methods used when developing instrument verification and adjustment procedures.

Application Note 2012-11-08

Defining Your Calibration Requirement - White Paper 
These are the steps that can be taken when actually placing an order to ensure you get a "proper" calibration.

Article 2012-11-08

PDF PDF 1.57 MB
The Six Axes Of Calibration - White Paper 
To help demonstrate the variances in the deliverables and value of calibration due to lack of regulation. They have been split into 6 axes. This document discusses each of these axes.

Application Note 2012-10-24

The Metrological & Financial Implications of a Clogged Fan Filter - White Paper 
This article discussed the implications of having a clogged air filter and addresses solutions to helping in the prevention of clogged air filters.

Application Note 2012-10-24

PDF PDF 1.41 MB
Connector Pin Recession and its Effect on Network Analyzer Accuracy - White Paper 
Outlines an experiment undertaken to assess the impact on the measurement of reflection coefficient when using 3.5 mm connectors.

Application Note 2012-10-24

PDF PDF 762 KB
Too Much Calibration? - White Paper 
This paper explains the variables at work in the world of calibration - how they can be used to find the elusive balance point between cost and confidence, or "too much" and "not enough" calibration.

Application Note 2012-10-24

PDF PDF 1.23 MB
Calibration of Precision Step Attenuators - White Paper 
Automated parallel IF substitution system for precision attenuator calibration which has been in use for over 15 years and presents results of tests made on some very accurate attenuators.

Application Note 2012-10-14

PDF PDF 1.38 MB
Fully-Automatic DMM Calibration System - White Paper 
Describes a fully-automatic calibration system for digtial multimeters (DMMs), including the uncertainty estimation of DC Voltage measurements.

Application Note 2012-10-14

PDF PDF 2.28 MB

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