Innovative piezoelectric acceleration rate sensors

Lee, C.; Lin, Chi‐Chang; Hsiao, C. C.; Kuo, Ching-Ming; Lin, Jann-Fang

doi:10.2514/6.1996-1436

Cited by 2 publications

(1 citation statement)

References 3 publications

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“…This is the basic concept of the interfacing circuit used for the piezoelectric acceleration rate sensor. 6 Considering a realistic impact force that can appear in highperformance structural systems, the impact force amplitude is initially zero and increases rapidly with time. That is,…”

Section: Acceleration Rate Sensorsmentioning

confidence: 99%

New Tools for Structural Testing: Piezoelectric Impact Hammers and Acceleration Rate Sensors

Lee

Lin

Hsiao

et al. 1998

Journal of Guidance, Control, and Dynamics

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Small-size ultra-high-precision mechanical systems demand special testing methodologies, such as a better highfrequency response, a precise impact position, an extremely high repeatability, etc. Utilizing the fact that signals obtained from piezoelectric sensing elements are strongly in uenced by the interfacing circuitry, piezoelectric sensors that can be used to measure acceleration rate were developed. Both analytical and experimental results indicate that acceleration rate sensors can detect the arrival of realistic shock earlier than conventional accelerometers can. An ultra-high-precision high-speed piezoelectric impact system with an on-line load cell was also modeled, designed, and built. The sensitivity of this on-line load cell was calibrated by using a standard quartz load cell. This innovative high-speed impact hammer system was found to have a timing accuracy in the range of microseconds and a positioning accuracy in the range of micrometers.

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Section: Acceleration Rate Sensorsmentioning

confidence: 99%