US 12,345,581 B1
Fixture applied to sticking strain gauge on Hopkinson square bar and use method thereof
Jianbo Zhu, Shenzhen (CN); Chengcheng Xie, Shenzhen (CN); Tao Zhou, Shenzhen (CN); Heping Xie, Shenzhen (CN); Weiyue Bao, Shenzhen (CN); Zhuo Cen, Shenzhen (CN); Shiwei Zhang, Shenzhen (CN); Junyan Li, Shenzhen (CN); and Linsheng Liang, Shenzhen (CN)
Assigned to Shenzhen University, Shenzhen (CN)
Filed by Shenzhen University, Shenzhen (CN)
Filed on Jan. 15, 2025, as Appl. No. 19/022,278.
Claims priority of application No. 202410748569.X (CN), filed on Jun. 12, 2024.
Int. Cl. G01N 1/22 (2006.01); G01L 1/22 (2006.01); G01N 3/06 (2006.01); G01N 3/317 (2006.01)
CPC G01L 1/2206 (2013.01) [G01N 3/06 (2013.01); G01N 3/317 (2013.01); G01N 2203/001 (2013.01); G01N 2203/005 (2013.01); G01N 2203/0256 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A fixture applied to sticking a strain gauge on a Hopkinson square bar, comprising a laser rangefinder assembly frame (23), an elastic material layer (24), a laser rangefinder (25), a fixture outer frame, an elastic material cushion layer, a strain gauge positioning sticker, a transparent adhesive tape for strain gauge sticking, adhesive tape holes, a clamping buckle (28) and a rotating shaft structure (26), wherein:
the rotating shaft structure (26) is arranged on the fixture outer frame; the elastic material layer (24) is arranged in the laser rangefinder assembly frame (23), and stable connection between the laser rangefinder (25) and the laser rangefinder assembly frame (23) is realized by a way that the elastic material layer (24) is compressed and interference-assembled; the elastic material cushion layer is arranged in the fixture outer frame; at least one strain gauge positioning sticker is provided, one side of the strain gauge positioning sticker contacted with the elastic material cushion layer is made of adhesive material, and the strain gauge positioning sticker is directly adhered to the elastic material cushion layer through the adhesive material layer; the strain gauge positioning sticker is depicted with a prefabricated strain gauge positioning groove (42), and a size and a shape of the prefabricated strain gauge positioning groove (42) are consistent with a strain gauge to be pasted; and a number of the adhesive tape holes corresponds to the strain gauge positioning sticker, one strain gauge positioning sticker corresponds to two adhesive tape holes, the adhesive tape holes are used for fixing the transparent adhesive tape for strain gauge sticking, and the transparent adhesive tape for strain gauge sticking is tightly stuck on the strain gauge positioning sticker through the adhesive tape holes.