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GB/T 8586-2023: Technical specification for operational frequency distribution and anti-interference of sound of fishfingers
Status: Valid GB/T 8586: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 8586-2023 | English | 149 |
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Technical specification for operational frequency distribution and anti-interference of sound of fishfingers
| Valid |
GB/T 8586-2023
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| GB/T 8586-2007 | English | 239 |
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The technical requirements of operational frequency distribution and anti-interference of sound for fish finder
| Obsolete |
GB/T 8586-2007
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| GB/T 8586-1988 | English | 199 |
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The technical requirements of operational frequency distribution and anti-interference of sound for fish finders
| Obsolete |
GB/T 8586-1988
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PDF similar to GB/T 8586-2023
Basic data | Standard ID | GB/T 8586-2023 (GB/T8586-2023) | | Description (Translated English) | Technical specification for operational frequency distribution and anti-interference of sound of fishfingers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B94 | | Classification of International Standard | 65.150 | | Word Count Estimation | 7,774 | | Date of Issue | 2023-11-27 | | Date of Implementation | 2024-06-01 | | Older Standard (superseded by this standard) | GB/T 8586-2007 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 8586-2023: Technical specification for operational frequency distribution and anti-interference of sound of fishfingers
---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.
ICS 65:150
CCSB94
National Standards of People's Republic of China
Replace GB/T 8586-2007
Fish finder operating frequency allocation and prevention of sound wave interference
specifications
Published on 2023-11-27
2024-06-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Foreword
This document complies with the provisions of GB/T 1:1-2020 "Standardization Work Guidelines Part 1: Structure and Drafting Rules of Standardization Documents"
Drafting:
This document replaces GB/T 8586-2007 "Operating Frequency Allocation of Fish Finders and Technical Conditions for Preventing Sound Wave Interference" and is consistent with
Compared with GB/T 8586-2007, in addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) Some terminology entries have been changed (see 3:1, 3:2, 3:3, 3:4, 3:5, 2:1, 2:2, 2:3, 2:4, 2:5 of the:2007 edition), and "vocabulary" has been added:
Definition of "axis" (see 3:6);
b) The value range of the emitted sound pulse width has been changed (see Chapter 6, Chapter 5 of the:2007 edition);
c) Changed the transmit power attenuation value range (see Chapter 7, Chapter 6 of the:2007 edition);
d) Added test methods for required clauses (see Chapter 9):
Please note that some content in this document may be subject to patents: The publisher of this document assumes no responsibility for identifying patents:
This document is proposed by the Ministry of Agriculture and Rural Affairs of the People's Republic of China:
This document is under the jurisdiction of the National Fisheries Standardization Technical Committee (SAC/TC156):
This document was drafted by: Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences:
The main drafters of this document: Zhang Yutao, Li Guodong, Tang Taolin, Wei Ke, Shi Rui, Cheng Jing, Yin Xiangbo:
The previous versions of this document and the documents it replaces are as follows:
---First published as GB/T 8586-1988 in 1988, first revised in:2007;
---This is the second revision:
Fish finder operating frequency allocation and prevention of sound wave interference
specifications
1 Scope
This document specifies the operating frequency allocation of fish finders and their operating frequencies to prevent acoustic interference, the frequency response of the receiving system, and the emission of acoustic pulses:
Technical requirements for width, transmit power attenuation, and transducer directivity, and the corresponding inspection methods are described:
This document applies to the design, manufacture and inspection of fish finders for fishing operations:
2 Normative reference documents
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, the dated quotations
For undated referenced documents, only the version corresponding to that date applies to this document; for undated referenced documents, the latest version (including all amendments) applies to
this document:
GB/T 7965-2002 Acoustic underwater acoustic transducer measurement
SC/T 7003-1999 General technical specifications for vertical echo fish finders
SC/T 7004-2001 Fish finder transducer
3 Terms and definitions
The following terms and definitions apply to this document:
3:1
The operating frequency given in the fish finder technical specifications or instruction manual:
3:2
When the frequency changes, the amplitude of the system output signal changes with the frequency curve:
3:3
passbandwidth passbandwidth
On the frequency response curve, the corresponding frequency range is when the gain drops by 3dB relative to the maximum response value:
3:4
rectangular factorrectangularfactor
On the frequency response curve, the ratio of the difference between the upper and lower frequency limits when the gain decreases by r relative to the maximum response value and the passband width (3:3):
Note: Commonly used values of r are 20, 40, and 60, and the unit is dB:
3:5
Emitted sound pulse width pulsewidthofsound
The length of time the transducer emits an acoustic pulse:
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