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JJG 1070-2011

Chinese Standard: 'JJG 1070-2011'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusRelated Standard
JJG 1070-2011English509 Add to Cart Days<=4 Verification Regulation of Standard Hydrophones in the Frequency Range 0.5 MHz to 5 MHz (Two-transducer Reciprocity Method) Valid JJG 1070-2011
JJG 1070-2011Chinese19 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]

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Detail Information of JJG 1070-2011; JJG1070-2011
Description (Translated English): Verification Regulation of Standard Hydrophones in the Frequency Range 0.5 MHz to 5 MHz (Two-transducer Reciprocity Method)
Sector / Industry: Metrology & Measurement Industry Standard
Classification of Chinese Standard: A59
Classification of International Standard: 17.140
Word Count Estimation: 22,271
Date of Issue: 2011-07-04
Date of Implementation: 2011-10-04
Quoted Standard: JJF 1001-1998; JJF 1034-2005; GB/T 3102.7-1993; GB/T 3223-1994; GB/T 3947-1996; GB/T 15611-1995; IEC 62127-2-2007
Drafting Organization: China Shipbuilding Industry Corporation seventh fifteen Institute
Administrative Organization: National Acoustic Measurement Technical Committee
Regulation (derived from): AQSIQ Announcement No. 104 of 2011
Summary: This standard applies to the frequency range of 0. 5MHz ~ 5MHz used standard hydrophone initial verification, testing and use of follow-up checks.


JJG 1070-2011
Verification Regulation of Standard Hydrophones in the Frequency Range 0.5 MHz to 5 MHz (Two-transducer Reciprocity Method)
State verification procedures People's Republic of China
0.5MHz ~ 5MHz standard hydrophone
(B transducer reciprocity method)
StandardHydrophonesintheFrequencyRange
0.5MHzto5MHz (Two-transducerReciprocityMethod)
Issued on: 2011-07-04
2011-10-04 implementation
The State Administration of Quality Supervision, Inspection and Quarantine released
0.5MHz ~ 5MHz standard hydrophone
(B transducer reciprocity method) test procedures
VerificationRegulationofStandardHydrophones
intheFrequencyRange0.5MHzto5MHz
(Two-transducerReciprocityMethod
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The regulations by the State Administration of Quality Supervision, Inspection and Quarantine approved on July 4, 2011, and from
From October 4, 2011 into effect.
Focal point: the National Committee of the acoustic measurement technology
Drafted by: China Shipbuilding Industry Corporation seventh fifteen Institute
China Institute of Metrology
The measurement procedure commissioned the National Technical Committee is responsible for interpreting acoustics
The drafters of the regulations:
Wangyue Bing (China Shipbuilding Industry Corporation seventh fifteen Institute)
Huang Yongjun (China Shipbuilding Industry Corporation seventh fifteen Institute)
Yang Ping (China Institute of Metrology)
He Tao (China Shipbuilding Industry Corporation seventh fifteen Institute)
table of Contents
1 Scope (1)
2. Referenced Documents (1)
3 terminology and units of measurement (1)
4 Overview (2)
5 metering performance requirements (2)
5.1 of the work (2)
5.2 free field [voltage] sensitivity level (2)
5.3 free field [voltage] sensitivity level frequency response (2)
6 General Requirements (2)
6.1 General Requirements (2)
6.2 Materials and Structures (2)
6.3 mark and factory data (3)
7 control of measuring instruments (3)
7.1 test conditions (3)
7.2 Verification Project (4)
7.3 Verification Methods (5)
7.4 Verification Results Processing (7)
7.5 test cycle (7)
Appendix A calculation of the effective radius of the transducer (8)
Appendix B transducer reciprocity and non-linear test method (9)
Appendix C calculated correction factor k (10)
Appendix D calibration certificate and test results of notice-page format (12)
Measurement Uncertainty Appendix E Examples (14)
0.5MHz ~ 5MHz standard hydrophone (two transducer reciprocity method) test procedures
The procedure using the national standard GB/T 15611-1995 "high frequency acoustic hydrophone calibration" in the two transducers
Reciprocity law.
1 Scope
This procedure is applied at a frequency standard hydrophone within 0.5MHz ~ 5MHz range used for initial verification,
Verification and subsequent use of the check.
2 Citations
The regulations cited in the following documents:
JJF1001-1998 common measurement terms and definitions
JJF1034-2005 acoustic measurement terminology and definitions
GB/T 3102.7-1993 Quantities and units of acoustics
GB/T 3223-1994 Acoustics underwater acoustic transducer free-field calibration method
GB/T 3947-1996 Acoustics Terminology
GB/T 15611-1995 high frequency acoustic hydrophone calibration
IEC 62127-2:2007 ultrasound - Hydrophones - Part II: up to 40MHz frequency ultrasound field school
Associate (Ultrasonics-Hydrophones-Part 2: Calibrationforultrasonicfieldsupto40MHz)
When using this procedure, it should pay attention to using the currently valid version of the documents cited.
3 terminology and units of measurement
This procedure uses JJF1001-1998, JJF1034-2005, GB/T 3947-1996 and the related terms
definition.
This procedure uses quantities and units GB/T 3102.7-1993 prescribed.
NOTE: If no special instructions, this procedure all the voltage, current, sound pressure values refer to valid values.
3.1 from Easy calibration self-reciprocitycalibration
Using only reciprocal transducer and a reflector made free-field reciprocity calibration.
NOTE: Self-calibration is generally easy to apply to the high-frequency hydrophones.
3.2 two transducers reciprocity calibration two-transducerreciprocitycalibration
By the auxiliary transducer generates and easily via self calibration value be known sound field hydrophone calibration methods.
3.3 Apparent send current response apparenttransmittingcurrentresponse
Assuming perfect plane wave measurement conditions, the plane wave received by the sound pressure applied to the input terminal of the current ratio.
Symbols: S * 1
Unit: Pa · m/A
3.4 apparent free field [voltage] sensitivity apparentfree-field [voltage] sensitivity
Under the assumption that the ideal plane wave measurement conditions, the open circuit voltage output of the hydrophone and hydrophone introduced in free field
Than the sound pressure at the position of the acoustic center of its existence before.
Related standard:   JJF 1070.1-2011  JJF 1070.2-2011
   
 
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