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JJF 2008-2022 English PDF

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US$749.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
JJF 2008-2022: Calibration Specification for Comb Generators
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
JJF 2008-2022	749	Add to Cart	6 days	Calibration Specification for Comb Generators	Valid

Similar standards

JJF 1033 JJF 1050 JJF 1030

Basic data

Standard ID: JJF 2008-2022 (JJF2008-2022)
Description (Translated English): Calibration Specification for Comb Generators
Sector / Industry: Metrology & Measurement Industry Standard
Word Count Estimation: 38,312
Date of Issue: 2022-12-07
Date of Implementation: 2023-06-07
Issuing agency(ies): State Administration for Market Regulation

JJF 2008-2022: Calibration Specification for Comb Generators

---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.
National Metrology Technical Specifications of the People's Republic of China Calibration Specifications for Comb Spectrum Generators Released on 2022-12-07 2023-06-07 Implementation Released by the State Administration for Market Regulation Calibration Specifications for Comb Spectrum Generators Comb Generators Responsible unit. National Radio Metrology Technical Committee Drafting unit. 203 Institute of the Second Academy of China Aerospace Science and Industry Corporation This specification entrusts the National Radio Measurement Technical Committee to be responsible for interpretation Drafters of this specification. Jiang He (Institute 203, Second Academy of China Aerospace Science and Industry Corporation) Gong Pengwei (Institute 203, Second Academy of China Aerospace Science and Industry Corporation) Ma Hongmei (Institute 203, Second Academy of China Aerospace Science and Industry Corporation)

Introduction (Ⅱ) 1 Scope(1) 2 References(1) 3 terms(1) 4 Overview(1) 5 Metrological characteristics(1) 5.1 Harmonic Power(1) 5.2 Minimum harmonic power(1) 5.3 Pulse Width(1) 5.4 Amplitude flatness(2) 5.5 Amplitude Sensitivity to Input Power(2) 5.6 Phase Flatness(2) 5.7 Input Return Loss(2) 5.8 Output Return Loss(2) 6 Calibration conditions(2) 6.1 Environmental conditions (2) 6.2 Measuring standards and other equipment (2) 7 Calibration Items and Calibration Methods(3) 7.1 Calibration items(3) 7.2 Appearance and working normality inspection (3) 7.3 Harmonic power(4) 7.4 Minimum harmonic power(4) 7.5 Pulse Width(5) 7.6 Amplitude flatness(5) 7.7 Amplitude Sensitivity to Input Power(5) 7.8 Phase Flatness(6) 7.9 Input Return Loss(7) 7.10 Output Return Loss(7) 8 Calibration result expression(8) 9 Recalibration interval(8) Appendix A Original Record Format (9) Appendix B Calibration Certificate Inner Page Format (11) Appendix C Example of Calibration Uncertainty Assessment of Main Items (13) Appendix D Phase Spectrum Unwrapping and Deslope(21) Appendix E Pulse Width Algorithm(25) Appendix F Uncertainty Evaluation of Phase Flatness Based on Monte Carlo Method (29)

Introduction

JJF 1071-2010 "Rules for Writing National Metrology Calibration Standards" and JJF 1059.1-2012 "Uncertainty in Measurement" Degree Assessment and Representation together constitute the basic series of specifications supporting the formulation of this specification. This specification is published for the first time. Calibration Specifications for Comb Spectrum Generators

1 Scope

This specification applies to the calibration of comb spectrum generators with a bandwidth of 10MHz~50GHz.

2 References

This specification does not refer to documents.

3 terms

3.1 Minimum harmonic power At the specified input frequency, the power of all harmonics provided by the comb spectrum generator within the bandwidth range should be greater than or equal to For a specific power, the power is called the minimum harmonic power. 3.2 Amplitude flatness The difference between the maximum harmonic power and the minimum harmonic power within the bandwidth of the comb spectrum generator at a specified input frequency. 3.3 Amplitude Sensitivity to Input Power When the input power of the comb spectrum generator changes within a certain range, the specified harmonic (usually the highest harmonic within the bandwidth) Wave) at the degree of power value change. 3.4 Phase Flatness The difference between the maximum phase value and the minimum phase value at each harmonic within the bandwidth of the comb spectrum generator at a specified input frequency.

4 Overview

The comb spectrum generator can convert the sine or square wave signal input into it into a cycle with the same frequency as the input signal. Periodic narrow pulse output signal. The spectrum of the output signal of the comb spectrum generator is a series of equally spaced spectral lines, which resembles a comb The power amplitude of each spectral line is close to each other, and it can provide each harmonic signal of the input frequency in a wide frequency range. comb The shape spectrum generator can be used for lock-in amplifier circuit testing, spectrum analyzer calibration, frequency-agile radar design, ultra-wideband radar Interference, electromagnetic compatibility testing and other fields. In recent years, with the development of nonlinear testing technology, the comb spectrum generator As the harmonic phase standard of nonlinear vector network analyzer, it has been more widely used.

5 Metrological characteristics

5.1 Harmonic Power Harmonic frequency range. 10MHz~50GHz; Power range. -95dBm~0dBm. 5.2 Minimum harmonic power Harmonic frequency range. 10MHz~50GHz; Minimum harmonic power range. -95dBm~-10dBm. 5.3 Pulse Width Pulse width range. 10ps~100ns. ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJF 2008-2022_English be delivered?

Answer: Upon your order, we will start to translate JJF 2008-2022_English as soon as possible, and keep you informed of the progress. The lead time is typically 4 ~ 6 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJF 2008-2022_English with my colleagues?

Answer: Yes. The purchased PDF of JJF 2008-2022_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.