JJF 1461-2014 English PDF

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JJF 1461-2014: Calibration Specification for Lower Power Transfer Standards
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 1461-2014	629	Add to Cart	5 days	Calibration Specification for Lower Power Transfer Standards	Valid

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Basic data

Standard ID: JJF 1461-2014 (JJF1461-2014)
Description (Translated English): Calibration Specification for Lower Power Transfer Standards
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A56
Classification of International Standard: 17.220
Word Count Estimation: 27,273
Date of Issue: 4/21/2014
Date of Implementation: 7/21/2014
Quoted Standard: JJF 1001
Regulation (derived from): The State Administration of Quality Supervision, Inspection and Quarantine Notice No. 47 of 2014
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This Standard specifies the frequency range of 100 kHz-50 GHz, power measurement range of 0. 5mW - a variety of low-power 10mW of calibration transfer standards.

JJF 1461-2014: Calibration Specification for Lower Power Transfer Standards

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Calibration Specification for Lower Power Transfer Standards People's Republic of China National Metrology Technical Specifications Small Power Transfer Standard Calibration Specification Issued on. 2014-04-21 2014-07-21 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Small Power Transfer Standard Calibration Specification Focal point. the National Radio Technical Commission metering The main drafting units. China Aerospace Science and Industry Corporation Second Hospital 203 Participated in the drafting unit. China Institute of Metrology This specification commissioned the National Radio Technical Commission responsible for the interpretation of measurement The main drafters of this specification. ASTRONAUTIC (China Aerospace Science and Industry Corporation hospital 203) Zhang Weiwei (China Aerospace Science and Industry Corporation hospital 203) Drafters participate. Yang Xu Jun (China Aerospace Science and Industry Corporation hospital 203) Liuxin Meng (China Institute of Metrology)

table of Contents

Introduction (Ⅲ) 1 Scope (1) 2. References (1) 3 terminology and units of measurement (1) 3.1 Terminating Power Standard calibration factor (1) 3.2-through power standard calibration factor (1) 4 Overview (1) 5 Metrological characteristics (1) Calibration Condition 6 (2) 6.1 Calibration environmental conditions (2) 6.2 Calibration Equipment (2) 7 calibration items and calibration methods (3) 7.1 calibration items (3) 7.2 appearance and working properly check (3) 7.3 transfer standard calibration factors by type of small power (3) 7.4 Terminating small power transfer standard calibration factor (4) 7.5 Terminal Small Power Transfer Standard input reflection coefficient modules (6) 7.6 Transfer standard equivalent source reflection coefficient modules (6) by low-power formula 8 calibration results expression (8) 9 Recalibration interval (8) Appendix A calibration record format (9) Appendix B Calibration Certificate-page format (11) Appendix C Evaluation of Uncertainty in Measurement (13)

Introduction

This specification based JJF 1071-2010 "national measurement calibration specifications write rules" Writing, terminology and measurement Uncertainty Evaluation follow JJF 1001 "common measurement terms and definitions" and JJF 1059.1 "Measurement Uncertainty And said, "two documents. This specification relates primarily small power transfer standard calibration calibration factor and the reflection coefficient modulus values. Alternating Comparison Law and Standards Act passed the calibration terminal Small Power Transfer Standard calibration factor; uses Terminating Power Standard direct calibration Pass-through low-power standard calibration factor; a network analyzer calibration terminal Small Power Transfer Standard input End reflection coefficient modulus. This specification is the first release. Small Power Transfer Standard Calibration Specification

1 Scope

This standard applies to the frequency range of 100kHz ~ 50GHz, power measurement range of 0.5mW ~ 10mW A variety of small power transfer standard calibration. 2. References This specification refers to the following documents. JJF 1001 common measurement terms and definitions. For dated references, only the dated edition applies to this specification; undated reference documents Member, the latest edition (including any amendments) applies to this specification.

3 terminology and units of measurement

The following definitions of terms apply to this specification. 3.1 Terminating Power Standard calibration factor calibrationfactorofterminatingpowerstandard DC alternative power Pb incident bolometer element to the seat of power than the power of Pi, by Kb FIG. 3.2-through power standard calibration factor calibrationfactoroffeedthroughpowerstandard Next to the directional coupler alternative power Pbc incident arm (or splitters side output terminal) connected to a power seat set The main arm to the coupler output (or the other side of the splitter output) than non-reflective power Po of the load, with Kc FIG.

4 Overview

Small Power Transfer Standard is standard equipment for the power value transfer based on their access to the system is not the way The same is divided into two types by passing a standard formula transfer standard and low-power low-power terminal type. Small power transfer through a standard thermistor power seat, directional coupler (or power divider) and the power indicator (Or power bridge) components. Small Power Transfer Standard Terminal from the power seat and power indicator (or power bridge) composition, or by the formula Low-power standard output matched load components.

5 Metrological characteristics

a) Frequency range. 100kHz ~ 50GHz; b) Power measurement range. 0.5mW ~ 10mW; c) Measurement Uncertainty of calibration factors. 0.6% ~ 5.0% (k = 2); d) the reflection coefficient modulus value. not more than (0.1 to 0.25). Note. The above indicators are not used to determine eligibility for reference only. ......

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