{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,27]],"date-time":"2026-01-27T07:47:15Z","timestamp":1769500035816,"version":"3.49.0"},"reference-count":34,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2014,11,19]],"date-time":"2014-11-19T00:00:00Z","timestamp":1416355200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11204306"],"award-info":[{"award-number":["11204306"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["11374278"],"award-info":[{"award-number":["11374278"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["U1232210"],"award-info":[{"award-number":["U1232210"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>We have measured the coefficient of the voltage induced frequency shift (VIFS) of a 32.768 KHz quartz tuning fork. Three vibration modes were studied: one prong oscillating, two prongs oscillating in the same direction, and two prongs oscillating in opposite directions. They all showed a parabolic dependence of the eigen-frequency shift on the bias voltage applied across the fork, due to the voltage-induced internal stress, which varies as the fork oscillates. The average coefficient of the VIFS effect is as low as several hundred nano-Hz per millivolt, implying that fast-response voltage-controlled oscillators and phase-locked loops with nano-Hz resolution can be built.<\/jats:p>","DOI":"10.3390\/s141121941","type":"journal-article","created":{"date-parts":[[2014,11,19]],"date-time":"2014-11-19T10:56:41Z","timestamp":1416394601000},"page":"21941-21949","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["The Coefficient of the Voltage Induced Frequency Shift Measurement on a Quartz Tuning Fork"],"prefix":"10.3390","volume":"14","author":[{"given":"Yubin","family":"Hou","sequence":"first","affiliation":[{"name":"High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Qingyou","family":"Lu","sequence":"additional","affiliation":[{"name":"High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China"},{"name":"Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2014,11,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Gautschi, G. 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