Characteristic Analysis of Arc Acoustic Signal in Pipeline P-GMAW Automatic Welding

2021 ◽  
Author(s):  
Xinghua Liang ◽  
Kekuan Wang ◽  
Ruibin Duan
Keyword(s):  
Acoustic Signal ◽  
Automatic Welding ◽  
Characteristic Analysis

scholarly journals Sand content calculation model based on characteristic analysis of sand-carrying oil flow acoustic signal

2021 ◽  
Vol 1861 (1) ◽  
pp. 012054
Author(s):  
Feng Kai ◽  
Wang Kai ◽  
Fu Renqi ◽  
Chen Jiaxu ◽  
Sun Weiping ◽  
...  
Keyword(s):  
Acoustic Signal ◽  
Calculation Model ◽  
Sand Content ◽  
Characteristic Analysis ◽  
Model Based ◽  
Oil Flow

scholarly journals The Design of the Acoustic Isolator Used in Acoustic Telemetry While Drilling

2015 ◽  
Vol 8 (1) ◽  
pp. 427-433
Author(s):  
Xie Haiming ◽  
Zhou Jing ◽  
Zhang Feng
Keyword(s):  
Acoustic Signal ◽  
Acoustic Telemetry ◽  
Acoustic Signals ◽  
Transmission Model ◽  
Acoustic Transmission ◽  
Characteristic Analysis ◽  
Characteristic Frequencies ◽  
Drilling Bit ◽  
Size And Structure ◽  
Drill Collar

The acoustic isolator between the drilling bit and the acoustic piezoelectric transducer can attenuate the drilling noise transmitted through the drill collar to avoid interference with the transmission of acoustic signals while drilling, and also can be used to weaken the influence of downlink acoustic signal with the uplink channel produced by the transducer. This paper improves the characteristic analysis of tapered acoustic transmission model, and the size and structure of the acoustic isolator has been designed which has the characteristic frequencies of 700~800Hz and 1200~1300Hz.

1842: Catheter Free Potassium-Titanyl-Phosphate (KTP) Laser Photoselective Vaporization Prostatectomy (PVP): Patient Characteristic Analysis

2007 ◽  
Vol 177 (4S) ◽  
pp. 612-612
Author(s):  
Motoo Araki ◽  
Po N. Lam ◽  
Daniel J. Culkin ◽  
Pamela E. Fox ◽  
Glenn M. Sulley ◽  
...  
Keyword(s):  
Potassium Titanyl Phosphate ◽  
Ktp Laser ◽  
Characteristic Analysis ◽  
Photoselective Vaporization

Acoustic Signal Based Automatic Vehicle Detection System

2012 ◽  
Vol 2 (4) ◽  
pp. 88-89
Author(s):  
Sai Sandeep.k Sai Sandeep.k ◽  
◽  
P. Vijay Kumar
Keyword(s):  
Acoustic Signal ◽  
Detection System ◽  
Vehicle Detection

Characteristic Analysis of a Micro DC-DC Converter for Portable Electronic Devices and an Improvement of Transient Response Characteristic

2008 ◽  
Vol 128 (12) ◽  
pp. 1373-1380
Author(s):  
Satoshi Sugahara ◽  
Kouhei Yamada ◽  
Haruhiko Nishio ◽  
Masaharu Edo ◽  
Toshiro Sato ◽  
...  
Keyword(s):  
Transient Response ◽  
Electronic Devices ◽  
Response Characteristic ◽  
Characteristic Analysis
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