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JJG 2010-2010 English PDF

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JJG 2010-2010: Verification scheme of measuring instruments for RF and microwave attenuation
Status: Valid

JJG 2010: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
JJG 2010-2010199 Add to Cart 3 days Verification scheme of measuring instruments for RF and microwave attenuation Valid
JJG 2010-1987239 Add to Cart 2 days Verification Scheme of RF and Microwave Attenuation Measuring Instruments Obsolete

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JJF 1234   JJF 1396   JJG 376   JJF 2016   JJF 2010   JJG 2009   

Basic data

Standard ID: JJG 2010-2010 (JJG2010-2010)
Description (Translated English): Verification scheme of measuring instruments for RF and microwave attenuation
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A56
Classification of International Standard: 17.220
Word Count Estimation: 8,833
Date of Issue: 2010-05-11
Date of Implementation: 2010-08-01
Older Standard (superseded by this standard): JJG 2010-1987
Regulation (derived from): AQSIQ Announcement No. 50 of 2010
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine
Summary: This standard applies to RF and microwave attenuation value transfer measuring instruments, which includes the amount from the main base, radio frequency and microwave attenuation baseline measurement apparatus, radio frequency and microwave attenuation measurement apparatus until the RF and microwave attenuation values ??between measuring instruments work transitive relation, value transfer value transfer methods, and the uncertainty of when the requirement.

JJG 2010-2010: Verification scheme of measuring instruments for RF and microwave attenuation

---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.
Verification scheme of measuring instruments for RF and microwave attenuation People's Republic of China National Metrological Verification System tables RF and Microwave Attenuation Measurement Instruments Issued on. 2010-05-11 2010-08-11 implementation The State Administration of Quality Supervision, Inspection and Quarantine released RF and Microwave Attenuation Measurement Instruments Verification System Replacing JJG 2010-1987 The Verification System by the State Administration of Quality Supervision, Inspection and Quarantine on May 11, 2010 approved, And it shall become effective August 11, 2010. Focal point. the National Radio Technical Commission metering Drafting units. China Institute of Metrology The Verification System by the Technical Committee responsible for the national radio measurement interpretation The Verification System drafters. High autumn (China Institute of Metrology) Liang Weijun (China Institute of Metrology)

table of Contents

1 Scope (1) 2 RF and microwave attenuation measurement reference (1) 3 RF and microwave attenuation measurement apparatus (1) 4 RF and microwave attenuation working measuring instruments (2) 5 RF and microwave attenuation measurement instruments Verification System block diagram (2) RF and microwave attenuation measurement instruments Verification System

1 Scope

The verification system is suitable for RF and microwave attenuation measurement instruments of value transfer, including from major basic amount, RF and microwave attenuation baseline measurement equipment, RF and microwave attenuation measurement apparatus until RF and microwave attenuation work Value transfer relationship between the measuring instruments, the uncertainty of value transfer method and money transfer time requirements.

2 RF and microwave attenuation measurement reference

2.1 Name and range measurement Name. RF and Microwave Attenuation national benchmark; Measuring range. 0dB ~ 100dB (10kHz ~ 18GHz); 0dB ~ 90dB (18GHz ~ 40GHz). 2.2 Composition of reference means RF and microwave attenuation by the two national reference reference means, namely the 10kHz ~ 18GHz attenuation countries Reference (wideband attenuator national benchmarks) and 18GHz ~ 40GHz attenuator national benchmarks. Attenuation by the attenuation measurement reference connection Receiver, the signal source, local oscillator, lock-in amplifier, the verification standard, as well as coaxial/waveguide deployment, isolation components. 2.3 attenuation measurement receiver Attenuation measurement principle is the use of low-IF receiver tandem alternative method to induce a voltage divider as the reference standard, through Export ratio is too inductive voltage divider attenuation quantity to be measured. A = 20lgD2 × U1D1 × U2 (DB) Where. D1, D2 --- respectively attenuator setting in inductive voltage divider ratio of the reference position and the position of the measurement; U1, U2 --- respectively attenuator set at the reference position and the measured position of the lock-in amplifier output Frequency voltage readings. Uncertainty 2.4 reference means In the 10kHz ~ 18GHz band, uncertainty. 0.002dB 0.0002 × AdB (0dB ~ 80dB), 0.05dB (90dB), 0.1dB (100dB) (k = 2) 18GHz ~ 40GHz band, uncertainty. 0.002dB 0.0002 × AdB (0dB ~ 70dB), 0.05dB (80dB), 0.15dB (90dB) (k = 2) 2.5 magnitude transfer mode When a standard measurement standards attenuator, direct measurement. Attenuation measurement standards for the standard device, the use of comparative measurements, transfer standards are connected at both ends of the bad isolation Subtracter.

3 RF and microwave attenuation standards of measurement

3.1 RF and microwave attenuation standards of measurement into a standard attenuation means and standard attenuator.
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