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JJF 1588-2016 English PDF

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JJF 1588-2016: Calibration Specification for Vector Hydrophones in Frequency Range 1 kHz to 10 kHz(Free-field Comparison Method)
Status: Valid

Standard ID	Contents [version]	USD	STEP2	[PDF] delivered in	Standard Title (Description)	Status	PDF
JJF 1588-2016	English	489	Add to Cart	4 days [Need to translate]	Calibration Specification for Vector Hydrophones in Frequency Range 1 kHz to 10 kHz(Free-field Comparison Method)	Valid	JJF 1588-2016

PDF similar to JJF 1588-2016

Standard similar to JJF 1588-2016

GB/T 3222.2 GB/T 3222.1 JJG 188 JJF 1580 JJF 1581 JJF 1579

Basic data

Standard ID	JJF 1588-2016 (JJF1588-2016)
Description (Translated English)	Calibration Specification for Vector Hydrophones in Frequency Range 1 kHz to 10 kHz(Free-field Comparison Method)
Sector / Industry	Metrology & Measurement Industry Standard
Classification of Chinese Standard	A59
Word Count Estimation	21,215
Date of Issue	2016-11-25
Date of Implementation	2017-02-25
Regulation (derived from)	State Administration of Quality Supervision, Inspection and Quarantine Notice No.116 of 2016
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine

JJF 1588-2016: Calibration Specification for Vector Hydrophones in Frequency Range 1 kHz to 10 kHz(Free-field Comparison Method)

---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.
Calibration Specification for Vector Hydrophones in Frequency Range 1 kHz to 10 kHz (Free-field Comparison Method) National Metrological Technical Code of the People's Republic of China Specification for 1 kHz to 10 kHz Vector Hydrophone Calibration (Free field comparison method) inFrequencyRange1kHzto10kHz (Free-fieldComparisonMethod) 2016-11-25 release 2017-02-25 Implementation State Administration of Quality Supervision, Inspection and Quarantine issued Specification for 1 kHz to 10 kHz Vector Hydrophone Calibration (Free field comparison method) Coordinate unit. National Acoustics Metrology Technical Committee The main drafting unit. China Shipbuilding Industry Corporation, the seventh one five research institute Participated in the drafting unit. Institute of Acoustics, Chinese Academy of Sciences China Shipbuilding Heavy Industry Sound Technology Co., Ltd This specification entrusts the National Acoustics Metrology Technical Committee to explain The main drafters of this specification. Fei Teng (China Shipbuilding Industry Corporation, the first seven research institutes) Zhao Han (China Shipbuilding Industry Corporation 715 Institute) Participate in the drafters. Mo Xiping (Institute of Acoustics, Chinese Academy of Sciences) Guo Linfa (China Shipbuilding Heavy Marine Technology Co., Ltd.)

Introduction (II) 1 Scope (1) 2 References (1) 3 terms and units of measurement (1) 3.1 Vector hydrophone (1) 3.2 Axial sensitivity asymmetry (1) 3.3 Horizontal suppression ratio (1) 3.4 vector - sound pressure channel phase difference (2) 4 Overview (2) 5 Metrological characteristics (2) 5.1 Free-field voltage sensitivity level (2) 5.2 Free field velocity sensitivity level (2) 5.3 Free field sound pressure gradient sensitivity level (2) 5.4 Vector - Sound pressure channel phase difference (2) 5.5 Directivity (2) 6 Calibration conditions (2) 6.1 Environmental conditions (2) 6.2 Measurement standards and other equipment (2) 7 Calibration items and calibration methods (4) 7.1 Calibration items (4) 7.2 Calibration method (4) 8 Calibration results (8) 8.1 Calibration data processing (8) 8.2 Calibration Certificate (8) 8.3 Uncertainty of measurement of calibration results (9) 9 re-school time interval (9) Appendix A Contents of the Calibration Certificate (10) Appendix B Example of Evaluation of Uncertainty in Voltage Sensitivity Level (14)

Introduction

This specification is based on JJF 1071-2010 "National Metrological Calibration Rules". This specification refers to the IEC 60565 "water sound hydrophone 0.01Hz ~ 1MHz frequency range calibration" (Underwateracoustics-Hydrophones-Calibrationinfrequencyrange0.01 Hzto 1MHz) and JJG185-1997 "500Hz ~ 1MHz measurement hydrophone" in the hydrophone free field voltage Sensitivity Level 2 calibration method, measurement uncertainty is evaluated according to JJF 1059.1-2012. This specification is the first release. Specification for 1 kHz to 10 kHz Vector Hydrophone Calibration (Free field comparison method)

1 Scope

This specification applies to the calibration of vector hydrophones used in the frequency range of 1 kHz to 10 kHz at atmospheric pressure.

2 reference file

This specification refers to the following documents. Measurement of hydrophone for 500Hz ~ 1MHz JJG185-1997 Standard Terminology and Definitions for JJF 1001-2011 Terminology and definitions of acoustical metrology nouns JJF 1034-2005 JJF 1340-2012 20Hz ~.2000Hz Vector hydrophone calibration specification Acoustics quantities and units Terminology of acoustics nouns GB/T 3947-1996 For dated references, only the dated edition applies to this specification; references that are not dated , The latest version (including all modifications) applies to this specification.

3 terms and units of measurement

JJF 1001-2011, JJF 1034-2005, GB 3102.7-1993 and GB/T 3947-1996 And the following terms and definitions apply to this specification. This specification uses the amount and unit specified in GB 3102.7-1993. 3.1 vector hydrophone vectorhydrophone The hydrophone, which is a ratio of the output voltage to the particle velocity or the sound pressure gradient, has a similarity to the cosine function Shape, and the characteristic does not vary with frequency. [JJF 1340-2012, definition 3.1] 3.2 axial sensitivity asymmetry axialdeviationofsensitivity Vector hydrophone vector channel free field voltage sensitivity level difference between two maxima. [JJF 1340-2012, definition 3.5] Note. 1. In decibels (dB). 2. Also known as directivity asymmetry or maximum nonuniformity. 3.3 lateral inhibition than lateralrejectionratio The Difference between the Maximum and the Minimal Value of the Vector Channel of the Vector Hydrophone. [JJF 1340-2012, definition 3.6] Note. 1. In decibels (dB). 2. also known as the depth of the pits.

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