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GB/T 35705-2017Acoustic positioning system (English PDF)

船位仪

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

December 29, 2017

Implementation date

July 1, 2018

Scope

GB/T 35705-2017 is the English-translated version of 船位仪.

GB/T 35705-2017 is listed as Acoustic positioning system, and its draft text calls the product a position meter; it specifies the technical requirements, test methods, inspection rules and delivery preparation for that instrument.

Clause 1 states that it applies to the design, manufacture and acceptance of the position meter, and adds that other forms of ultra-short baseline underwater positioning measurement system may use it as a reference.

Clause 2 cites GB/T 191, GB/T 2423.1, GB/T 2423.2, GB/T 2423.3, GB/T 2423.5, GB/T 2423.16, GB/T 2423.17, GB/T 4208-2017, GB/T 6388, GB/T 7094, GB/T 13306, GB/T 13384 and GB/T 13951-2016.

Clause 3 carries two entries, and the first is a definition whose term name the draft does not print: a device that monitors, during drilling, the relative displacement in the horizontal direction between the drilling platform or hull and the underwater wellhead or underwater target and the slope of the riser, and that alarms automatically once the movement passes a manually set threshold.

Its note says the point is to prevent breakage of the riser and loss of wellhead control, and that such a device is generally made up of a transponder, an array, signal processing equipment, integrated display control equipment and, optionally, GPS/Beidou equipment.

The second entry defines the ultra-short baseline array as an acoustic array of smaller aperture, with a baseline length generally less than 0.5 m. The standard was proposed by China Shipbuilding Industry Corporation and is held by the National Ship Electrical and Electronic Equipment Standardization Technical Committee (SAC/TC531).

The draft breaks off at the end of clause 3, so the page does not show how the requirement, test and inspection clauses are arranged. It was issued on December 29, 2017 and has applied since July 1, 2018.

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Document preview — GB/T 35705-2017

National Standard of the People's Republic of China

ICS: 47.020.60
Classification: U 69

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Foreword
1 Scope
2 Normative references
3 Terms and definitions

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

1 Scope

This standard specifies the position instrument technical requirements, test methods, inspection rules and delivery preparation.

This standard applies to the design, manufacture and acceptance of the position meter. Other forms of ultra-short baseline underwater positioning measurement system can be used with reference.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 191 Packaging - Pictorial signs

GB/T 2423.1 Environmental testing for electric and electronic products Part 1: Test methods Test A. Low temperature

GB/T 2423.2 Environmental testing for electric and electronic products Part 2: Test methods Test B. High temperature

GB/T 2423.3 Environmental testing for electric and electronic products Part 3: Test methods Test Cab. Constant hot and humid test

GB/T 2423.5 Environmental testing for electric and electronic products Part 5: Test methods Test Ea and Guidelines Impact

GB/T 2423.16 Environmental testing for electric and electronic products Part 16: Test methods Test J and guidance Mildew

GB/T 2423.17 Environmental testing for electric and electronic products Part 17: Test methods Test Ka. Salt spray

GB/T 4208-2017 enclosure rating (IP code)

GB/T 6388 transport packaging shipping symbols

GB/T 7094 marine electrical equipment vibration (sinusoidal) test method

GB/T 13306 signs

GB/T 13384 mechanical and electrical product packaging General technical conditions

GB/T 13951-2016 Environmental testing for mobile platforms and offshore installations - General requirements for electrical and electronic products

3 Terms and definitions

The following terms and definitions apply to this document.

3.1

Monitoring the relative displacement in the horizontal direction between the drilling platform or the hull and the underwater wellhead (or the underwater target) and the slope of the riser when drilling Move beyond the manual setting threshold alarm device automatically.

Note: Monitor the offset between the platform and the wellhead to prevent breakage of the riser and loss of wellhead control. Generally by the transponder, array, signal processing equipment, integrated display control equipment And GPS/Beidou equipment (optional).

3.2 Ultrashortbaseline

Aperture (size) smaller, the general baseline length of less than 0.5m acoustic array.

......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.

Referenced standards

Normative references

Similar standards

GB/T 13029.2-2026|GB/T 13029.3-2026|GB/T 13030.1-2026|GB/T 47666-2026|GB/T 47674-2026|GB/T 47805-2026

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