Displacement sensitivity comparison between the first two symmetrical in-plane modes of a tuning fork crystal oscillator by using an optical chopping method

Autor:	Sang-Hun Song, Chan-Yong Jeong, Hyo-Seung Choi, Myeonghun U, Hyuck-In Kwon
Rok vydání:	2015
Předmět:	Physics Tine business.industry General Physics and Astronomy Displacement (vector) law.invention Vackář oscillator Amplitude Optics law Physics::Accelerator Physics Sensitivity (control systems) Tuning fork business Crystal oscillator Voltage
Zdroj:	Journal of the Korean Physical Society. 66:744-747
ISSN:	1976-8524 0374-4884
DOI:	10.3938/jkps.66.744
Popis:	We compared the displacement sensitivity between the first two symmetrical flexural resonant modes of a tuning fork crystal oscillator. An optical chopping method was employed to detect the vibrational modes of the tuning fork. Displacement sensitivities for the first two modes were extracted by applying a sinusoidal excitation voltage to the tuning fork crystal oscillator and detecting the oscillating amplitude of the focused laser beam chopped by the vibrating tine of the oscillator. We found that the ratio of the second mode sensitivity to the first one was 0.0113, in reasonable agreement with the theoretical value of 0.0131.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2dd9d8083e7a35899b064aa859f35f83 https://doi.org/10.3938/jkps.66.744 Zobrazit plný text záznamu Full text from SpringerLink