Design of a load cell for measuring ultrasonic percussive drilling forces

Citation
Vks. Loong et al., Design of a load cell for measuring ultrasonic percussive drilling forces, P I MEC E C, 215(C8), 2001, pp. 965-972
Citations number
15
Categorie Soggetti
Mechanical Engineering
Journal title
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART C-JOURNAL OF MECHANICAL ENGINEERING SCIENCE
ISSN journal
09544062 → ACNP
Volume
215
Issue
C8
Year of publication
2001
Pages
965 - 972
Database
ISI
SICI code
0954-4062(2001)215:C8<965:DOALCF>2.0.ZU;2-2
Abstract
In this article a novel design of a load cell for the measurement of highly dynamic forces generated during high-frequency percussive drilling is pres ented. It allows for a high-volume accurate measurement of low-amplitude an d high-frequency (ultrasonic) dynamic forces while retaining high mechanica l stiffness. The load cell consists of three piezotransducers mounted betwe en the base and the top disc. To achieve a required level of signal synchro nization between the signals from individual transducers, the piezotransduc ers are appropriately preloaded. The paper discusses the design procedure, instrumentation set-up and sample experimental measurements.