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JJF 1167-2007

JJF 1167-2007_English: PDF (JJF1167-2007)
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JJF 1167-2007English529 Add to Cart 4 days Calibration Specification for Psophometers JJF 1167-2007 Valid JJF 1167-2007

Standard ID JJF 1167-2007 (JJF1167-2007)
Description (Translated English) Calibration Specification for Psophometers
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A59
Classification of International Standard 17.140
Word Count Estimation 22,228
Date of Issue 2007/2/28
Date of Implementation 2007-05-28
Older Standard (superseded by this standard) JJG 483-1987
Quoted Standard GB/T 3102.5-1993; GB/T 3102.7-1993; JJG 188-2002; JJF 1001-1998; JJF 1034-2005; JJF 1059-1999; YD/T 625-1993
Drafting Organization Hubei Provincial Institute of Measurement and Testing
Administrative Organization National Technical Committee on Acoustic Measurement
Regulation (derived from) AQSIQ Announcement No. 41 of 2007
Issuing agency(ies) State Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to noise meter calibration.

JJF 1167-2007
Calibration Specification for Psophometers
People's Republic of China National Metrology Technical Specifications
Noise meter calibration specification
Posted 2007-02-28
2007-05-28 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
Noise meter calibration specification
Instead of JJG483-1987
This specification by the State Administration of Quality Supervision, Inspection and Quarantine, 2007 February 28 ratification and
From May 28, 2007 into effect.
Focal point. the National Committee of the acoustic measurement technology
Drafting unit. Hubei Provincial Institute of Measurement and Testing
China Testing Technology Research Institute
This specification by the responsible National Technical Committee acoustic measurement interpretation
Drafters of this specification.
Yao Qiuping (Hubei Institute of Measurement and Testing)
Hao Yu-chuan (China Testing Technology Research Institute)
Wang Hong (Hubei Institute of Measurement and Testing)
Zhong Jingwen (Hubei Institute of Measurement and Testing)
When the root of fire (Hubei Institute of Measurement and Testing)
Luo Yaqing (Hubei Institute of Measurement and Testing)
table of Contents
1 Scope (1)
2. Referenced Documents (1)
3 terminology and units of measurement (1)
4 Overview (1)
5 Metrological characteristics (1)
5.1 Zero Voltage intrinsic error (1)
5.2 Input balance (1)
5.3 input impedance (1)
5.4 measured voltage limit (2)
5.5 linearity error (2)
5.6 unweighted noise voltage frequency response measurement (2)
5.7 Frequency Response weighted noise voltage measurement time (2)
5.8 Measurement average time (3)
5.9 RMS Features (3)
5.10 peak indicating characteristics (3)
6 calibration conditions (3)
Environmental conditions 6.1 (3)
6.2 Standard device and other measuring equipment (4)
7 calibration items and calibration methods (4)
7.1 calibration items (4)
7.2 Calibration method (4)
8 calibration results expression (7)
8.1 Calibration Data Processing (7)
8.2 calibration certificate (8)
8.3 calibration measurement uncertainty (8)
9 Recalibration interval (8)
Appendix A calibration certificate (9)
Appendix B Uncertainty Evaluation Examples (12)
Noise meter calibration specification
1 Scope
This instruction applies to noise meter (also known as noise voltmeter, noise tester) calibration.
2 Citations
This specification references the following documents
GB/T 3102.5-1993 "electricity and magnetism Quantities and units"
GB/T 3102.7-1993 "acoustic volume and unit"
JJG188-2002 "Sound Level Meter"
JJF 1001-1998 "common measurement terms and definitions"
JJF 1034-2005 "Acoustic measurement terminology and definitions"
JJF 1059-1999 "Evaluation and Expression of Uncertainty in Measurement"
YD/T 625-1993 "noise meter technical conditions"
When using this specification it should be noted that using the currently valid version of the documents cited.
3 terminology and units of measurement
This specification uses JJF 1001-1998, JJF 1034-2005 and JJG188-2002 regarding terms and definitions.
This specification uses GB/T 3102.5-1993 Quantities and units and GB/T 3102.7-1993 prescribed.
4 Overview
Noise meter is used to measure the acoustic communication equipment, broadcast equipment and transmission line frequency interference noise generated by the instrument
Is it prescribed weighted and time-weighted measurement of the size of audio interference noise voltage. It mainly consists of an input circuit, the amount of
Programmable controller, amplifiers, weighted network, detectors, self-calibration signal source, and power indicator and other components.
5 Metrological characteristics
5.1 Zero Voltage inherent error
When using the 800Hz (or 1000Hz) 0dB (Input impedance 600Ω, 0dB to 0.775V) input signal,
Noise meter indicates voltage and zero voltage difference. Zero voltage inherent error is better than ± 0.3dB①
5.2 Input balance
When the noise meter to its balanced input