US 11,686,869 B2
Seismic vibrator, vibration device and driving apparatus for the same
Xuefeng Xing, Jilin (CN); Yuda Chen, Jilin (CN); Guanyu Zhang, Jilin (CN); Xunqian Tong, Jilin (CN); and Jun Lin, Jilin (CN)
Assigned to JILIN UNIVERSITY, Jilin (CN)
Appl. No. 16/474,625
Filed by JILIN UNIVERSITY, Jilin (CN)
PCT Filed Apr. 19, 2017, PCT No. PCT/CN2017/081148
§ 371(c)(1), (2) Date Sep. 16, 2019,
PCT Pub. No. WO2018/120525, PCT Pub. Date Jul. 5, 2018.
Claims priority of application No. 201611237689.5 (CN), filed on Dec. 28, 2016; application No. 201611238953.7 (CN), filed on Dec. 28, 2016; and application No. 201611238960.7 (CN), filed on Dec. 28, 2016.
Prior Publication US 2020/0386902 A1, Dec. 10, 2020
Int. Cl. G01V 1/04 (2006.01)
CPC G01V 1/04 (2013.01) 15 Claims
OG exemplary drawing
 
1. A seismic vibrator, comprising:
a base;
a mounting plate;
a first spring configured to connect said base and said mounting plate, wherein said mounting plate is configured to reciprocate, based on said first spring, relative to said base;
a coil which is rigidly fixed with said base;
a magnet having one end fixed with said mounting plate, and the other end stretched into said coil;
a magnetic steel fixed with and in contact with said magnet, wherein a gap for accommodating said coil is provided between said magnetic steel and said magnet; and
a counterweight fixed with said mounting plate,
wherein the seismic vibrator further comprises a coil bracket, configured to fix said coil with said base, wherein said coil bracket is of a hollow cylindrical shape, said coil bracket is fixed with said base, said coil is arranged on an outer circumferential surface of said coil bracket, and the other end of the magnet is stretched into the hollow cylindrical shape of said coil bracket.