coups

23:59 Oct 29, 2018
French to English translations [PRO]
Tech/Engineering - Petroleum Eng/Sci / gas pipeline
French term or phrase: coups
This comes from specifications for pigging a pipeline to check for anomalies, in this case a gas pipeline (in France).

When examining a pipeline there are thresholds of background noise and the word "coups" gets used a lot, but I'm not sure what it really refers to. I think it's probably to do with the test instruments and the signals they send/receive rather than someone hammering on the pipe! Do we have any pigging specialists who can point me to the right terminology for this please?

"[...] le seuil de notation des indications exprimé en nombre de COUPS ou en énergie des signaux ultrasonores ET en termes de profondeur minimale exprimée en millimètres sur la base de l’équivalence nombre de COUPS/profondeur en millimètres déterminée empiriquement lors d’un pull test"

"[...] amplitude maximale du signal exprimée en nombre de coups"

"Le bruit de fond exprimé en nombre de coups,"

"Le seuil de détection exprimé en nombre de coups,"

(and many others)

Thanks for saving my bacon!
Brian Cleveland
Local time: 06:07


Summary of answers provided
2expressed in corresponding units
SafeTex
1 +1pulse-echo mode testing
andres-larsen
Summary of reference entries provided
pistons racleurs avec multiéléments ultrasonores piézo-électriques utilisés en pulse-écho
andres-larsen

Discussion entries: 2





  

Answers


37 mins   confidence: Answerer confidence 2/5Answerer confidence 2/5
expressed in corresponding units


Explanation:
Hello
An educated guess but then found in the reference given below, which says:

> MESURER
v. tr.
Chercher à connaître, ou Déterminer une quantité par le moyen d'une mesure. Mesurer un espace, un champ. Mesurer au mètre, au litre. Mesurer du blé, du vin, du bois. Mesurer la distance d'un lieu à un autre. Mesurer une colonne.

Par extension, Mesurer son élan. Mesurer son ***coup***

Definitely needs a confirmation or two before you go with this.


    https://www.notrefamille.com/dictionnaire/definition/mesurer/
SafeTex
France
Local time: 12:07
Native speaker of: Native in EnglishEnglish
PRO pts in category: 4
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48 mins   confidence: Answerer confidence 1/5Answerer confidence 1/5 peer agreement (net): +1
pulse-echo mode testing


Explanation:
Applications of Ultrasonic Techniques in Oil and Gas Pipeline Industries
https://file.scirp.org/pdf/AJOR_2015070609382172.pdf
WM Alobaidi - ‎2015 - ‎
6 jul. 2015 - The device, called a pig, uses ultrasonic testing to dis- .... [30] studied the use of a single transducer for pulse-echo testing of in-service pipeline ...

Pipeline Inspection - NDT Resource Center
https://www.nde-ed.org/.../PipelineInspection/PipelineInspec...
Pigs use several nondestructive testing methods to perform the inspections. ... sound pulse perpendicular to the pipe wall and receives echo signals from the ...

ultrasonic in-line inspection: high resolution crack detection ... - NDT.net
https://www.ndt.net/article/wcndt2004/pdf/.../420_barbian.pd...
A Barbian - ‎
or intelligent pigs, have first been introduced nearly 40 years ago to detect and locate pipeline anomalies such ... They work in a pulse-echo mode with a rather.

Internal Ultrasonic Pipe & Tube Inspection - NDT.net
https://www.ndt.net/article/panndt2007/papers/149.pdf
M Birchall - ‎
IRIS is an ultrasonic pulse/echo immersion technique for the internal inspection of tubes and pipes. After the tubes .... Pig) up to 1100 mm Internal diameter. (4,5).

Structure of the Ultrasonic Inspection Pig | Download Scientific Diagram
https://www.researchgate.net/.../Structure-of-the-Ultrasonic... -
Download scientific diagram | Structure of the Ultrasonic Inspection Pig from ... in pulse-echo mode to measure the echo time propagation of the pipeline wall.

andres-larsen
Venezuela
Local time: 07:07
Native speaker of: Native in EnglishEnglish
PRO pts in category: 12

Peer comments on this answer (and responses from the answerer)
agree  mchd: oui, c'est la technique, et il s'agit aussi de signaux
4 hrs
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Reference comments


36 mins
Reference: pistons racleurs avec multiéléments ultrasonores piézo-électriques utilisés en pulse-écho

Reference information:
Piston racleur — Wikipédia
https://fr.wikipedia.org/wiki/Piston_racleur
Les pistons les plus connus sont les multiéléments ultrasonores piézo-électriques utilisés en pulse-écho, notamment utilisés dans le monde pétrolier et dans l'eau mais ceux-ci nécessitent un couplant (fluide liquide).

andres-larsen
Venezuela
Native speaker of: Native in EnglishEnglish
PRO pts in category: 12
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