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GB/T 11826.2-2012: Current meter and flow meter -- Part 2: Ultrasonic current meter
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 11826.2-2012 | English | 229 |
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Current meter and flow meter -- Part 2: Ultrasonic current meter
| Valid |
GB/T 11826.2-2012
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Standard similar to GB/T 11826.2-2012 GB/T 11828.4 GB/T 11828.2 GB/T 11828.1 Basic data | Standard ID | GB/T 11826.2-2012 (GB/T11826.2-2012) | | Description (Translated English) | Current meter and flow meter -- Part 2: Ultrasonic current meter | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | N93 | | Classification of International Standard | 07.060 | | Word Count Estimation | 10,114 | | Quoted Standard | GB/T 191; GB/T 9359-2001; GB/T 9969; GB/T 18185; GB/T 18522.6; GB/T 19677-2005 | | Regulation (derived from) | National Standards Bulletin No. 24 of 2012 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the time difference method ultrasonic acoustic pulse propagation velocity of acoustic flow meter product classification, requirements, test methods, test rules and signs, instructions, packaging, transportation, storage and so on. | GB/T 11826.2-2012: Current meter and flow meter -- Part 2: Ultrasonic current meter---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.
ICS07.060
N93
National Standards of People's Republic of China
Velocity flow instrumentation - Part 2. Acoustic Current Meter
Currentmeterandflowmeter-Part 2. Ultrasoniccurrentmeter
Issued on. 2013-02-01 2012-09-03 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 11826 "flow velocity instrument" is divided into eight sections.
--- Part 1. Rotor Flow Meter;
--- Part 2. Acoustic current meter;
--- Part 3. Radio Flow Meter;
--- Part 4. micro-rotor current meter;
--- Part 5. electromagnetic flow meter;
--- Part 6. velocity flow meter;
--- Part 7. a cross-sectional flow meter;
--- Part 8. Optical flow meter.
This is Part 2 GB/T 11826 in.
Rules in this section in accordance with GB/T 1.1-2009 given draft.
This section proposed by the People's Republic of China Ministry of Water Resources.
This part of the National Technical Committee of Standardization Technical Committee hydrological hydrological instruments (SAC/TC119/SC1) centralized.
This part mainly drafted by. MWR hydrological instruments and geotechnical engineering Instrument Quality Supervision and Testing Center, Nanjing Auto Hydrological
The Institute, Ningbo Beilun Cup China Hydraulic Equipment Co., Ltd.
Participated in the drafting of this section. the country's industrial production permit office hydrological instruments and geotechnical engineering Instrument Examination Department.
The main drafters of this section. Chen Yu, Shi Minghua, Li Wei, Wang Jianwen.
Velocity flow instrumentation - Part 2. Acoustic Current Meter
1 Scope
This section GB/T 11826 regulations ultrasonic acoustic pulse propagation velocity of acoustic transit-time flow meter product classifications, requirements, test
Method, detection rules and signs, instructions, packaging, transportation, storage and so on.
This section applies to conduct flow measurement in open channel ultrasonic acoustic pulse propagation time difference method acoustic velocity meter, NA Doppler shift
Technology acoustic velocity meter.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated edition applies to this article
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 191 Packing Pictorial marking
GB/T 9359-2001 hydrological instruments environmental testing conditions and methods
GB/T 9969 General Industrial Product Manual
GB/T 18185 hydrological instruments reliability technical requirements
GB/T 18522.6 hydrologic instruments - Part 6. inspection rules and signs, packaging, transportation, storage and operation manual
GB/T 19677-2005 Terms and symbols for hydrological Instruments
3 Terms and Definitions
GB/T 19677-2005 defined and the following terms and definitions apply to this document.
3.1
Channel acousticpath
When the sound wave propagation in the medium directional effective coverage area.
4 Categories and Structure
4.1 Categories
Acoustic pulse propagation time difference method of acoustic flow meter into a single channel, cross-channel response, multi-layer, reflective work of acoustic transit-time flow
Speed \u200b\u200binstrument.
4.2 structure and composition
4.2.1 Mono works of acoustic transit-time flow meter
Riverside install a pair of ultrasonic transducers, signal cable between the two sides must be linked to the main shore installation of measuring devices.
4.2.2 Cross-channel mode of operation of acoustic transit-time flow meter
Riverside setting two intersecting channels, install two sets of four transducers, two channels measured average velocity and the main flow of the main shore
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