公开(公告)号：US20240060866A1

公开(公告)日：2024-02-22

申请号：US18450197

申请日：2023-08-15

申请人： Anton Paar TriTec SA

发明人： Norbert PINNO-RATH ,  Bertrand BELLATON

IPC分类号： G01N3/02

CPC分类号： G01N3/02 ,  G01N2203/0019 ,  G01N2203/0035 ,  G01N2203/0078 ,  G01N2203/0676 ,  G01N2203/0641 ,  G01N2203/0682 ,  G01N2203/0617

摘要： An indentation head system for an indentation instrument includes: an indenter tip contacting a sample surface along at least an indentation axis; a reference element supporting the tip; a zero-level sensor generating a signal indicating whether the tip is displaced with respect to the reference element from a neutral relative position; an elastic element between the tip and an actuator with known elongation, the actuator connected to the reference element; and a controller receiving signals from the zero-level sensor to perform servo control of the actuator based on output of the zero-level sensor and the known elongation of the actuator so the zero-level sensor outputs a signal corresponding to a substantially zero displacement of the tip from the neutral relative position, the controller calculating a force applied by the tip to the sample based on an output of the displacement sensor and an elastic coefficient of the elastic element.