US$199.00 · In stock Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. JJG 2010-2010: Verification scheme of measuring instruments for RF and microwave attenuation Status: Valid JJG 2010: Evolution and historical versions
Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
JJG 2010-2010 | English | 199 |
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3 days [Need to translate]
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Verification scheme of measuring instruments for RF and microwave attenuation
| Valid |
JJG 2010-2010
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JJG 2010-1987 | English | 239 |
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2 days [Need to translate]
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Verification Scheme of RF and Microwave Attenuation Measuring Instruments
| Obsolete |
JJG 2010-1987
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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| Word Count Estimation | 8,833 | Date of Issue | 2010-05-11 | Date of Implementation | 2010-08-01 | Older Standard (superseded by this standard) | JJG 2010-1987 | Regulation (derived from) | AQSIQ Announcement No. 50 of 2010 | Issuing agency(ies) | General Administration of Quality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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