|
US$934.00 · In stock
Delivery: <= 6 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 12060.3-2011: Sound system equipment -- Part 3: Methods of measurement on audio amplifiers
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 12060.3-2011 | English | 934 |
Add to Cart
|
6 days [Need to translate]
|
Sound system equipment -- Part 3: Methods of measurement on audio amplifiers
| Valid |
GB/T 12060.3-2011
|
PDF similar to GB/T 12060.3-2011
Basic data | Standard ID | GB/T 12060.3-2011 (GB/T12060.3-2011) | | Description (Translated English) | Sound system equipment -- Part 3: Methods of measurement on audio amplifiers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | M72 | | Classification of International Standard | 32.160.10 | | Word Count Estimation | 47,478 | | Date of Issue | 2011-10-31 | | Date of Implementation | 2012-02-01 | | Older Standard (superseded by this standard) | GB/T 9001-1988 | | Quoted Standard | GB/T 5465.2-2008; GB/T 6278; GB 8898-2011; GB/T 12060.2-2011; GB/T 14197; GB/T 17626.17-2005; GB/T 17626.29-2006; SJ/Z 9140.1-1987 | | Adopted Standard | IEC 60268-3-2000, IDT | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 15 of 2011 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the amplifier specification shall be given the characteristics and the corresponding measurement method. This section applies to professional or home sound system consisting of analog amplifiers and analog/digital amplifier in the analog section. | GB/T 12060.3-2011: Sound system equipment -- Part 3: Methods of measurement on audio amplifiers---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.
Sound system equipment Part 3. Methods of measurement on audio amplifiers
ICS 33.160.10
M72
National Standards of People's Republic of China
Replacing GB/T 9001-1988
Sound system equipment
Part 3. Methods of measurement of audio amplifier
(IEC 60268-3.2000, IDT)
Issued on. 2011-10-31
2012-02-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅴ
1 Scope 1
2 Normative references 1
Condition 3 1
3.1 rated conditions and standard measurement conditions 1
3.1.1 Introduction 1
3.1.2 rated conditions 2
3.1.3 Standard Measurement Condition 2
3.2 Other Condition 2
4 Job Category 2
5 interchangeable parts 3
6 automatic controller 3
7 Power 3
8 fader position 3
Ready state measured 9 3
Measuring 10 Series 4
11 variable power devices 4
12 4 Flag
13 Working environment 4
14 Characteristics of interpretation and the appropriate measurement method 4
The basic characteristics of the power supply 4 14.1
14.1.1 Characteristic Explanation 4
14.1.2 Measurement 5
14.2 (long-term) supply voltage variation tolerance 5
14.2.1 Characteristic Explanation 5
14.2.2 Measurement 5
14.3 Variation of power frequency tolerance 6
14.3.1 characteristics explain 6
14.3.2 Measurement 6
14.4 Power harmonics and ripple tolerances 6
14.4.1 characteristics explain 6
14.4.2 Measurement 7
14.5 Input characteristics 7
14.5.1 Nominal source impedance characteristics explain 7
14.5.2 Input impedance 7
14.5.3 rated source emf characteristics explain 8
14.5.4 distortion limit corresponding to the rated output voltage of the minimum emf source 8
14.6 output characteristics 9
14.6.1 Rated load impedance characteristics explain 9
14.6.2 output source impedance 9
14.6.3 distortion limited output voltage and power 10
14.6.4 Regulation 11
14.6.5 overload recovery time 11
14.7 Limiting Properties 11
14.7.1 Overload source emf 11
14.7.2 Short-term maximum output voltage and power 12
14.7.3 Long-term maximum output voltage and power 12
14.7.4 Temperature limits the output power of 13
14.8 protection circuit characteristics 13
14.8.1 Overview 13
14.8.2 for the existence of hidden output voltage and current combinations of protection 14
14.8.3 DC offset protection characteristics of the circuit 15
14.9 rated (distortion limit) the duration of the output voltage or power 16
14.9.1 Overview 16
14.9.2 characteristics explain 16
14.9.3 Measurement 17
14.10 Gain 17
14.10.1 EMF voltage gain and gain 17
14.10.2 gain maximum force 17
Attenuation characteristics 14.10.3 volume controller 17
Attenuation characteristics 14.10.4 multi-channel devices in the balance controller 18
14.11 Response 18
14.11.1 Gain - Frequency Response 18
14.11.2 gain limit of the effective frequency range 19
14.11.3 distortion limits the effective frequency range 19
14.11.4 Phase - Frequency Response 19
14.12 nonlinear amplitude 20
14.12.1 Overview 20
14.12.2 rated total harmonic distortion 20
14.12.3 Total Harmonic distortion 20 standard measurement conditions
14.12.4 total harmonic distortion as a function of the amplitude and frequency 20
n order harmonic standard measurement conditions under 14.12.5 distortion 21
14.12.6 n-order harmonic distortion as a function of the amplitude and frequency 21
14.12.7 n-order modulation distortion (where n = 2 or 3) 22
14.12.8 n-order difference frequency distortion (where n = 2 or 3) 23
14.12.9 dynamic intermodulation distortion (DIM) 24
14.12.10 26 total difference frequency distortion
14.12.11 weighted total harmonic distortion 27
27 14.13 Noise
14.13.1 characteristics explain 27
14.13.2 Measurement 28
28 14.14 hum
14.14.1 Overview 28
14.14.2 characteristics explain 28
14.14.3 Measurement 29
14.15 balanced inputs and outputs 29
14.15.1 Input balance 29
14.15.2 overload (distortion limit) peak - peak common-mode input voltage 30
14.15.3 Output balance 30
More than 14.16-channel amplifier crosstalk attenuation and resolution 31
14.16.1 characteristics explain 31
14.16.2 Measurement 31
More than 14.17-channel amplifier gain and the phase difference between the channels 32
14.17.1 gain difference 32
14.17.2 phase 33
14.18 size and quality characteristics explain 33
Appendix A (informative) balanced interface 39
References 40
1 measuring input impedance circuit 33
Figure 2 Measurement overload recovery time waveform 34
Figure 3 protected from potentially damaging output voltage and current of 35
The circuit of Figure 4 merge two input signals 36
Figure 5 below 30kHz frequency dynamic intermodulation distortion measurement signal spectrum 36
Figure 6 Measurement of the degree of balance of balanced input circuit 37
Resistance balance of 7 measurements balanced output circuit 37
Voltage Symmetry Figure 8 Measurement balanced output circuit 38
Specifications Table 1 different from the same amplifier rated total harmonic distortion and distortion limits of rated output power of 16
Table 2 is less than 20kHz dynamic intermodulation distortion components 25
Foreword
GB/T 12060 "Sound system equipment" is divided into the following sections.
--- Part 1. General;
--- Part 2. General method of calculation and interpretation of the term;
--- Part 3. audio amplifier measurement methods;
--- Part 4. Methods of measurement microphones;
--- Part 5. Methods for measuring performance main speaker;
--- Part 6. Auxiliary passive components;
--- Part 7. Headphones measurement methods;
--- Part 8. AGC device;
--- Part 9. Artificial reverberation, time delay and frequency shift measurement means;
--- Part 10. Peak program level meters;
--- Part 11. Sound system equipment connectors for the interconnection of the application;
--- Part 12. Radio and with similar sound system connected applications;
--- Part 13. speaker listening tests;
--- Part 14. Circular and oval speaker, shape and installation dimensions;
--- Part 16. the speech transmission index (STI) objective assessment of the level of speech intelligibility;
--- Part 17. Standard volume tables;
--- Part 18. Peak program level meters - Digital audio peak level meter.
This section GB/T 12060 Part 3.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section uses the translation method is equivalent to using IEC 60268-3.2000 "Sound system equipment - Part 3. Amplifiers" (in English).
This part made the following editorial changes.
a) with a decimal point instead of a comma as the decimal point, '' '';
b) Remove the preface international standards;
c) Figure 2b), "Overload Recovery Time = t1-t2" to "overload recovery time = t3-t2".
This part is GB/T 9001-1988 "Sound system equipment - Part 3. Amplifiers" amendments.
Section compared with GB/T 9001-1988 The main changes are as follows.
a) increase 3.1.2h);
b) Remove GB/T 9001-1988 3.2.4 in the "Power of Influence";
c) Remove GB/T 9001-1988 in Chapter 5, "Nominal source impedance";
d) Remove GB/T 9001-1988 Chapter 8, "Special instructions";
e) change GB/T 9001-1988 in 16.4.2 "measuring method" content;
f) increase 14.5.2.2.3 "electricity bridge measurement input impedance";
g) increase 14.5.2.2.4, "the source resistance of the two resistance measuring input impedance";
h) increasing the GB/T 9001-1988 18.1 "rated load impedance" in the table of contents;
i) change GB/T 9001-1988 in 19.2.1 "feature interpretation" of the content;
j) 14.8 "protection circuit characteristics" and 14.9 "rated (distortion limit) output voltage or power duration";
k) increase in GB/T 9001-1988 in 22.4.1 "feature interpretation" of the content;
l) increase 14.12.7.2f);
m) increased 14.12.8.2j) and k);
n) increases 14.12.11 "weighted total harmonic distortion";
o) redefine the GB/T 9001-1988 in Chapter 25, "balance" of the content;
p) Remove GB/T 9001-1988 in Chapter 26, "outside influence" and Chapter 27, "stray field";
q) Remove GB/T 9001-1988 in Chapter 31, "provides classification characteristic" classification principles will apply to the relevant provisions;
r) section of this chapter, and article number IEC 60268-3.2000 "Sound system equipment - Part 3. Amplifiers" (in English) to maintain
Consistent.
This Part replaces GB/T 9001-1988 "Sound system equipment - Part 3. Amplifiers."
This part is proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This part of the National Audio, video and multimedia systems and equipment Standardization Technical Committee (SAC/TC242) centralized.
This section was drafted by. Institute of Acoustics, Nanjing University, Jiangsu Province Electronic Information Products Quality Supervision and Inspection Institute, Guoguang Electric shares
Limited.
The main drafters of this section. Shen Yong, Zhang Zhiqiang, Yang Jun.
This part of the standard replaces the previous editions as. GB/T 9001-1988.
Sound system equipment - Part 3. Methods of measurement of audio amplifier
1 Scope
This section specifies the characteristics of the amplifier specifications should be given, as well as its corresponding measurement method.
This section applies to the professional or home sound system consisting of analog amplifier and an analog/digital amplifier in the analog part.
In general, the measurements given are the most direct relationship with the definition, but does not exclude recourse to get the equivalent results of other
method.
This section provides the conditions and rated the standard measurement conditions, namely as a condition below specification and measurement.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 5465.2-2008 Graphical symbols for electrical equipment - Part 2. Graphical symbols (IEC 60417DB. 1973, IDT)
GB/T 6278 analog program signal
GB 8898-2011 Audio, video and similar electronic apparatus - Safety requirements (eqv IEC 60065.1998 (sixth edition))
GB/T 12060.2-2011 Sound system equipment - Part 2. General Explanation of terms and calculation methods (IEC 60268-2. 1987, IDT)
GB/T 14197 Preferred matching values \u200b\u200bfor audio, video and audiovisual systems interconnection (IEC 61938, IDT)
GB/T 17626.17-2005 electromagnetic compatibility test and measurement technology dc input power port immunity test ripple
(IEC 61000-4-17.2002, IDT)
GB/T 17626.29-2006 electromagnetic compatibility test and measurement technology dc input power port voltage dips, short interruptions and
Voltage variations immunity tests (IEC 61000-4-29.2000, IDT)
SJ/Z9140.1-1987 Sound system equipment - Part 1. General (idt IEC 60268-1. 1988)
Condition 3
3.1 rated conditions and standard measurement conditions
3.1.1 Introduction
In order to facilitate the measurement amplifier arrangement, respectively, under the heading of this part of the conditions and rated conditions as stated in the standard measurement conditions for several groups.
The term "nominal" full explanation see GB/T 12060.2-2011.
Amplifier is rated conditions.
--- Rated supply voltage;
--- Nominal source impedance;
--- Rated source emf;
--- Rated load impedance;
--- Rated total harmonic distortion, or rated (distortion limits) output voltage or power;
--- Rated mechanical and climatic conditions.
Note 1. The total harmonic distortion and (distortion limits) output voltage or power are interrelated. Not both as the rated condition, because usually a given
Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of GB/T 12060.3-2011_English be delivered?Answer: Upon your order, we will start to translate GB/T 12060.3-2011_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 GB/T 12060.3-2011_English with my colleagues?Answer: Yes. The purchased PDF of GB/T 12060.3-2011_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+ countriesQuestion 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 [email protected]. 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.
|