EN ISO 6416:2017
(Main)Hydrometry - Measurement of discharge by the ultrasonic transit time (time of flight) method (ISO 6416:2017)
Hydrometry - Measurement of discharge by the ultrasonic transit time (time of flight) method (ISO 6416:2017)
ISO 6416 describes the establishment and operation of an ultrasonic (transit-time) gauging station for the continuous measurement of discharge in a river, an open channel or a closed conduit. It also describes the basic principles on which the method is based, the operation and performance of associated instrumentation and procedures for commissioning.
It is limited to the "transit time of ultrasonic pulses" technique, and is not applicable to systems that make use of the "Doppler shift" or "correlation" or "level-to-flow" techniques.
ISO 6416 is not applicable to measurement in rivers with ice.
NOTE ISO 6416 focuses on open channel flow measurement. IEC 60041 covers the use of the technique for full pipe flow measurement.
Hydrometrie - Messung des Durchflusses mit dem Ultraschall-Laufzeitverfahren (Transit-time-/Time-of-flight-Verfahren) (ISO 6416:2017)
Dieses Dokument beschreibt die Einrichtung und Arbeitsweise einer nach dem Ultraschall-Laufzeit-verfahren (Transit-time-/Time-of-flight-Verfahren) arbeitenden Messstation zur kontinuierlichen Messung des Durchflusses in einem Fluss, in einem offenen Gerinne oder in einem geschlossenen Kanal. Außerdem werden Verfahrensgrundlagen, Arbeitsweise und Leistungsverhalten der dazugehörigen Messgeräte sowie die Verfahren zur Inbetriebnahme festgelegt.
Es beschränkt sich auf das Verfahren, bei dem die „Laufzeit von Ultraschallimpulsen“ ausgewertet wird, und es gilt nicht für Systeme, die die „Doppler-Verschiebung“, die „Korrelations-“ oder die „Wasserstands-Durchflussbeziehungen“ anwenden.
Dieses Dokument gilt nicht für Messungen in mit Eis bedeckten Flüssen.
ANMERKUNG Dieses Dokument fokussiert sich auf Durchflussmessungen im offenen Gerinne. IEC 60041 deckt die Rohrströmungsmessung ab.
Hydrométrie - Mesure du débit par la méthode du temps de transit ultrasonique (temps de vol) (ISO 6416:2017)
L'ISO 6416 décrit l'installation et le fonctionnement d'une station de jaugeage ultrasonique (temps de transit) conçue pour mesurer en continu le débit dans une rivière, un canal découvert ou une conduite fermée. Il décrit également les principes de base sur lesquels reposent la méthode, le fonctionnement et la performance des appareils associés et les modes opératoires de mise en service.
Il est limité à la technique du «temps de transit des impulsions ultrasonores» et n'est pas applicable aux systèmes basés sur les techniques utilisant «l'effet Doppler», «la corrélation d'échos» ou «les relations hauteur/débit».
L'ISO 6416 n'est pas applicable au mesurage en rivières en présence de glace.
NOTE L'ISO 6416 est axé sur le mesurage du débit dans les canaux découverts. L'IEC 60041 couvre l'utilisation de la technique de mesure du débit dans les conduites en charge.
Hidrometrija - Merjenje pretoka z ultrazvočno časovno prenosno metodo (čas letenja) (ISO 6416:2017)
Ta dokument opisuje vzpostavitev in delovanje ultrazvočne (časovno prenosne) postaje za neprekinjeno merjenje pretoka v reki, odprtem kanalu ali zaprtem vodu.
Opisuje tudi osnovna načela, na katerih temelji metoda, delovanje ter učinkovitost
povezanih instrumentov in postopkov za zagon.
Omejuje se na tehniko »časa prenosa ultrazvočnih impulzov« in se ne uporablja za sisteme, ki uporabljajo tehniko »Dopplerjevega zamika«, »korelacije« ali »ravni do pretoka«.
Ta dokument se ne uporablja za merjenje v poledenelih rekah.
OPOMBA: Ta dokument se osredotoča na merjenje pretoka v odprtem kanalu. IEC 60041 zajema uporabo tehnike za merjenje pretoka v celotni cevi.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2018
1DGRPHãþD
SIST EN ISO 6416:2005
+LGURPHWULMD0HUMHQMHSUHWRND]XOWUD]YRþQRþDVRYQRSUHQRVQRPHWRGR þDV
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Hydrometry - Measurement of discharge by the ultrasonic transit time (time of flight)
method (ISO 6416:2017)
Hydrometrie - Messung des Durchflusses mit dem Ultraschall-Laufzeitverfahren (Transit-
time-/Time-of-flight-Verfahren) (ISO 6416:2017)
Hydrométrie - Mesure du débit par le temps de transit ultrasonique (temps de vol)
méthode (ISO 6416:2017)
Ta slovenski standard je istoveten z: EN ISO 6416:2017
ICS:
17.120.20 Pretok v odprtih kanalih Flow in open channels
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN ISO 6416
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2017
EUROPÄISCHE NORM
ICS 17.120.20 Supersedes EN ISO 6416:2005
English Version
Hydrometry - Measurement of discharge by the ultrasonic
transit time (time of flight) method (ISO 6416:2017)
Hydrométrie - Mesure du débit par la méthode du Hydrometrie - Messung des Durchflusses mit dem
temps de transit ultrasonique (temps de vol) (ISO Ultraschall-Laufzeitverfahren (Transit-time-/Time-of-
6416:2017) flight-Verfahren) (ISO 6416:2017)
This European Standard was approved by CEN on 22 August 2017.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN
member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2017 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 6416:2017 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
European foreword
This document (EN ISO 6416:2017) has been prepared by Technical Committee ISO/TC 113
“Hydrometry” in collaboration with Technical Committee CEN/TC 318 “Hydrometry” the secretariat of
which is held by BSI.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by May 2018, and conflicting national standards shall be
withdrawn at the latest by May 2018.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 6416:2005.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia,
France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta,
Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.
Endorsement notice
The text of ISO 6416:2017 has been approved by CEN as EN ISO 6416:2017 without any modification.
INTERNATIONAL ISO
STANDARD 6416
Fourth edition
2017-10
Hydrometry — Measurement of
discharge by the ultrasonic transit
time (time of flight) method
Hydrométrie — Mesure du débit par la méthode du temps de transit
ultrasonique (temps de vol)
Reference number
ISO 6416:2017(E)
©
ISO 2017
ISO 6416:2017(E)
© ISO 2017, Published in Switzerland
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ii © ISO 2017 – All rights reserved
ISO 6416:2017(E)
Contents Page
Foreword .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Applications . 1
4.1 Types of applications . 1
4.2 Attributes and limitations . 2
5 Method of measurement . 2
5.1 Discharge . 2
5.2 Calculation of discharge from the transit-time measurement . 3
6 Flow velocity determination by the ultrasonic (transit time) method .3
6.1 Principle . 3
6.2 Sound propagation in water . 5
6.2.1 General. 5
6.2.2 Speed of sound in water . 6
6.2.3 Propagation losses . 6
6.2.4 Signal path bending . 8
6.2.5 Reflection . . 9
7 Gauge configuration .10
7.1 General .10
7.2 Single-path systems .10
7.3 Multi-path systems .11
7.4 Crossed-path systems .11
7.5 Reflected-path systems .13
7.6 Systems using transponders .14
7.7 Wireless systems (if a cable crossing is not possible) .15
7.8 Systems using divided cross-sections .16
7.9 Sloping paths .16
8 Determination of discharge .17
8.1 Single-path systems .17
8.2 Multi-path systems .18
8.2.1 General.18
8.2.2 Mid-section method .19
8.2.3 Mean-section method .20
8.3 Systems with transducers in the channel .21
9 System verification and calibration .22
10 Site selection .23
11 Site survey — Before design and construction .23
11.1 General .23
11.2 Visual survey .23
11.3 Survey of the cross-section .24
11.4 Survey of velocity distribution .24
11.5 Survey of signal propagation .24
12 Operational measurement requirements .24
12.1 General .24
12.2 Basic components of flow determination .25
12.3 Water velocity determination .
...
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