Development of a tri-axial primary vibration calibration system

Authors

  • Zhihua Liu National Institute of Metrology, China
  • Chenguang Cai National Institute of Metrology, China
  • Ming Yang Beijing University of Chemical Technology, China
  • Mei Yu Ming Yang received the B.Eng. degree from the Beijing University of Chemical Technology, China, where he is currently pursuing the Ph.D. degree. His research interests include sensor testing and mechanism control.

DOI:

https://doi.org/10.21014/acta_imeko.v8i1.662

Abstract

A tri-axial primary vibration calibration system has been set up at National Institute of Metrology for simultaneous calibration of motion transducers. The system is driven by three electrodynamics exciters that are mounted along the three orthogonal axes. The cross-coupling unit based on air bearing is developed for force transferring and motion guiding. Spatial orbit vibration is composited from sine vibration components of the three orthogonal axes. Relationship of shapes and orientations of spatial orbits and amplitudes and phases of sine vibration components is discussed. Multi-exciter vibration control for both cross-coupling compensation and amplitudes and phases control of sine vibration components is investigated. The tri-axial measuring system can simultaneously measure the three orthogonal vibration quantities based on the band-pass sampling method. The experiments show that a variety of spatial orbits can be generated by efficiently reducing the cross-coupling of the tri-axial vibration exciter and the magnitude and the phase shift of sensitivities of a tri-axis accelerometer can be determined.

Author Biographies

Zhihua Liu, National Institute of Metrology, China

Zhihua Liu received the Ph.D. degree from Tsinghua University, China,
in 2015. He is currently an Associate Research Fellow with the National
Institute of Metrology, China. His research interests include sensor testing
theory and method, the development of testing equipment design and control.

Chenguang Cai, National Institute of Metrology, China

Chenguang Cai received the Ph.D. degree from the Beijing University of
Aeronautics and Astronautics, China, in 2007. He is currently an Associate
Research Fellow with the National Institute of Metrology, China. He is
a member of ISO TC 108/SC3. His research interests include metrology
standard, theory and method of mechanical vibration and shock.

Ming Yang, Beijing University of Chemical Technology, China

Ming Yang received the B.Eng. degree from the Beijing University of
Chemical Technology, China, where he is currently pursuing the Ph.D. degree.
His research interests include sensor testing and mechanism control.

Mei Yu, Ming Yang received the B.Eng. degree from the Beijing University of Chemical Technology, China, where he is currently pursuing the Ph.D. degree. His research interests include sensor testing and mechanism control.

Mei Yu received the B.Eng. degree from North China University of Water
Resources and Electric Power, China. She is currently a Research Fellow
with the National Institute of Metrology, China. She is Vice-Chairman of the
National Committee on Vibration and Shock Speed Measurement Technology,
China. Her research interests include vibration and shock metrology theory
and method.

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Published

2019-03-31

Issue

Vol. 8 No. 1 (2019)

Section

Research Papers

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