US 12,449,320 B2
Electromagnetic ultrasonic double-wave transducer
Long Yang, Suzhou (CN); Mingming Xie, Suzhou (CN); Yisheng Jin, Suzhou (CN); Xinzong Zhou, Suzhou (CN); Junhui Zhao, Suzhou (CN); Xuxiang Zhu, Suzhou (CN); and Yuping Shen, Suzhou (CN)
Assigned to SUZHOU PHASERISE TECHNOLOGY CO., LTD., Suzhou (CN)
Filed by SUZHOU PHASERISE TECHNOLOGY CO., LTD., Suzhou (CN)
Filed on Feb. 24, 2024, as Appl. No. 18/586,433.
Application 18/586,433 is a division of application No. 17/266,127, granted, now 11,959,817, previously published as PCT/CN2018/112179, filed on Oct. 26, 2018.
Claims priority of application No. 201810893704.4 (CN), filed on Aug. 8, 2018.
Prior Publication US 2025/0052629 A1, Feb. 13, 2025
Int. Cl. G01L 5/00 (2006.01)
CPC G01L 5/00 (2013.01) 5 Claims
OG exemplary drawing
 
1. An electromagnetic ultrasonic double-wave transducer, comprising a shell (1), and a permanent magnet assembly, a coil (4), a shielding layer (5), and a wire (6) which are provided in said shell (1);
wherein
said coil (4) is configured to be fixed on a bottom of said shell (1) and is configured to be located below said permanent magnet assembly;
said shielding layer (5) is configured to be arranged between said permanent magnet assembly and said coil (4);
one end of said wire (6) is configured to be connected to said coil (4) while the other end thereof is configured to be connected to a power supply and signal plug (7);
said permanent magnet assembly comprises a third permanent magnet (12) and a fourth permanent magnet (13) wherein the fourth permanent magnet (13) is configured to be arranged side by side with said third permanent magnet (12) and located on two sides of a width direction of said third permanent magnet (12), and said fourth permanent magnet (13) and said third permanent magnet (12) are configured to be arranged at intervals and said intervals are made of a first non-conducting non-magnetic material (9);
said first non-conducting non-magnetic material (9) is configured to be only disposed in between the third permanent magnet (12) and the fourth permanent magnet (13); and
an upper end face of said third permanent magnet (12) and an upper end face of said fourth permanent magnet (13) realize magnetic circuit closing by means of a magnetic circuit closing element (8),
wherein the electromagnetic ultrasonic double wave transducer is configured for simultaneously exciting vertical downward-transmitted ultrasonic transverse waves and ultrasonic longitudinal waves on a surface of a conductive or magnetic testing subject.