From oscillation to impact: the design of a new force calibration device at PTB

被引：34

作者：

Bruns, T

Kumme, R

Kobusch, M

Peters, M

机构：

[1] Phys Tech Bundesanstalt, Lab 1 13, D-38106 Braunschweig, Germany

[2] Phys Tech Bundesanstalt, Lab 1 12, D-38106 Braunschweig, Germany

[3] Phys Tech Bundesanstalt, Fachbereich 1 1, D-38106 Braunschweig, Germany

[4] Phys Tech Bundesanstalt, Abt 1, D-38106 Braunschweig, Germany

来源：

MEASUREMENT | 2002年 / 32卷 / 01期

关键词：

force calibration; dynamic force; shock; impact; Laser-Doppler interferometry; air bearing;

D O I：

10.1016/S0263-2241(01)00048-3

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article describes the design of a new facility which is under construction at the Physikalisch-Technische Bundesanstalt for the calibration of force transducers with impulse forces, Force pulses of 1 ms duration and less are generated by the impact of two bodies of known mass, having their acceleration derived from velocity data taken with laser-Doppler interferometry. To minimize the influence of friction. linear air bearings are used as guideways for these bodies. Numerical simulations based on a non-linear mass-spring model are performed to obtain a prediction of the expected signals under the influence of hertz-like contacts as well as of the pulse duration and the amplitude. Finally. the major sources of measurement uncertainty are discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：85 / 92

页数：8