US 12,235,177 B2
Force sensing device with isotropic compliance
Dino Accoto, Singapore (SG)
Assigned to NANYANG TECHNOLOGICAL UNIVERSITY, Singapore (SG)
Appl. No. 17/784,309
Filed by NANYANG TECHNOLOGICAL UNIVERSITY, Singapore (SG)
PCT Filed Dec. 11, 2020, PCT No. PCT/IB2020/061817
§ 371(c)(1), (2) Date Jun. 10, 2022,
PCT Pub. No. WO2021/116995, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 10201912037V (SG), filed on Dec. 12, 2019.
Prior Publication US 2023/0040951 A1, Feb. 9, 2023
Int. Cl. G01L 5/16 (2020.01); G01L 1/12 (2006.01); G01L 1/14 (2006.01); G01L 1/24 (2006.01)
CPC G01L 5/16 (2013.01) [G01L 1/122 (2013.01); G01L 1/142 (2013.01); G01L 1/24 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A device, with isotropic planar compliance, comprising:
a floating body (2) positioned between a first (3) and second frame (4),
said floating body having an extended portion (21) protruding through the first frame,
at least a row of caged balls (5) supporting the floating body,
at least one elastic element (6) positioned over the extended portion of the floating body, compressed between and connecting the floating body and the first frame,
said caged balls allow the at least one elastic element to laterally deform, so that their an axis thereof bends, while the ends of said at least one elastic element lay on two parallel planes, which remain at constant distance while sliding one with respect to the other, and
at least one displacement sensor (10), for measuring the displacement of the floating body with respect to the first or second frame.