Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

JJG 173-2004 English PDF

JJG 173: Historical versions

Standard IDUSDBUY PDFLead-DaysStandard Title (Description)Status
JJG 173-2004RFQ ASK 3 days Gauge for Measuring Distance Between Inside Rim Faces of Wheels for Railway Locomotive and Vehicle
JJG 173-2003RFQ ASK 5 days Verification regulation of Signal Cenerator Obsolete
JJG 173-1986959 Add to Cart 6 days Verification Regulation of Standard Signal Generator Type XFC-6A Obsolete
JJG 173-1976RFQ ASK 3 days (Chinese Industry Standard) Obsolete

Similar standards

JJG 249   JJG 404   JJG 134   

Basic data

Standard ID: JJG 173-2004 (JJG173-2004)
Description (Translated English): Gauge for Measuring Distance Between Inside Rim Faces of Wheels for Railway Locomotive and Vehicle
Sector / Industry: Metrology & Measurement Industry Standard

JJG 173-2003: Verification regulation of Signal Cenerator

---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 regulation of Signal Cenerator National Metrology Verification Regulations of the People's Republic Signal generator SignalGenerator Released on.2003-11-24 2004-05-24 implementation The General Administration of Quality Supervision, Inspection and Quarantine issued Signal generator verification procedure Sig nalGenerator Replacing JJG 173-1986 JJG 174-1985 JJG 324-1983 JJG 325-1983 JJG 339-1983 JJG 438-1986 This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on November 24,.2003, and It will take effect on May 24,.2004. Focal Point. National Radio Metering Technical Committee Main drafting unit. China Institute of Metrology Participated in the drafting unit. Communication Measurement Center of the Ministry of Information Industry This procedure entrusts the National Radiometric Technical Committee to explain The main drafters of this procedure. He Zhao (China Institute of Metrology) Participate in the drafters. Huang Jianming (China Institute of Metrology) Han Guifen (Communication Measurement Center of Ministry of Information Industry)

table of Contents

1 Scope (1) 2 Overview (1) 3 Metrological performance requirements (1) 3.1 Internal Crystal Oscillator (1) 3.2 Frequency (1) 3.3 Level (1) 3.4 Spectrum purity parameters (1) 3.5 Modulation parameters (1) 3.6 Pulse Modulation Parameters (2) 3.7 Internal Modulation Generator Parameters (2) 4 General technical requirements (2) 5 measuring instrument control (2) 5.1 Verification conditions (2) 5.2 Verification items and verification methods (4) 5.3 Processing of verification results (11) 5.4 Verification cycle (11) Appendix A Verification Record Form (12) Appendix B Certification Certificate Page Format (18) Signal generator verification procedure

1 Scope

This procedure is applicable to the first verification and subsequent inspection of various general-purpose signal generators with a frequency range of 5 kHz to 40 GHz. The determination and the in-use test can be carried out according to the actual measurement performance of the signal generator to be tested.

2 Overview

The signal generator is a comprehensive consisting of an oscillator, a frequency synthesizing unit, a level control unit, a modulation unit, and the like. The basic function of electronic instruments is to provide sine wave signals and modulated wave signals, which are widely used in production, scientific research and measurement. And other departments.

3 Metrological performance requirements

3.1 Internal Crystal Oscillator Boot characteristics. 1 × 10-6 ~ 1 × 10-11 Daily frequency fluctuation. 1×10-6~1×10-11 Daily aging rate. ±1×10-6~±1×10-11 1 second frequency stability. 1×10-6~1×10-11 Frequency reproducibility. ±1×10-6~±1×10-11 Frequency accuracy. ±1×10-5~±1×10-10 3.2 Frequency Frequency range. 5kHz~40GHz Frequency accuracy. ±1×10-5~±1×10-10 3.3 level Level range. -127dBm~ 30dBm Level accuracy. ± (0.5dB~2dB) 3.4 Spectrum purity parameters 3.4.1 Residual amplitude modulation and residual frequency modulation of carrier 3.4.2 Harmonics 3.4.3 Non-harmonics 3.4.4 Subharmonics 3.4.5 SSB phase noise 3.5 Modulation parameters 3.5.1 Amplitude Modulation Amplitude modulation depth range. 5%~99% Amplitude depth accuracy. ±3%~±20% 3.5.2 Frequency Modulation
......
Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of JJG 173-2004_English be delivered?

Answer: Upon your order, we will start to translate JJG 173-2004_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of JJG 173-2004_English with my colleagues?

Answer: Yes. The purchased PDF of JJG 173-2004_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.

Question 5: Should I purchase the latest version JJG 173-2004?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version JJG 173-2004 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.