Smart Capacitive Transducer for High-Frequency Vibration Measurement
A smart capacitive transducer (SCT) for high-frequency vibration (HFV) measurements was developed, featuring self-calibration for the improvement of measurement accuracy. Measurements using this transducer are performed by positioning it over a thin (10 µm) dielectric layer on a conductive surface....
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/25/6/1639 |
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| author | Vygantas Augutis Gintautas Balčiūnas Pranas Kuzas Darius Gailius Edita Raudienė |
| author_facet | Vygantas Augutis Gintautas Balčiūnas Pranas Kuzas Darius Gailius Edita Raudienė |
| author_sort | Vygantas Augutis |
| collection | DOAJ |
| description | A smart capacitive transducer (SCT) for high-frequency vibration (HFV) measurements was developed, featuring self-calibration for the improvement of measurement accuracy. Measurements using this transducer are performed by positioning it over a thin (10 µm) dielectric layer on a conductive surface. This method was shown to be a non-contact vibration measurement technique for solid surfaces at frequencies over 10 kHz. Auto-calibration is performed every time the SCT is placed on the object being measured. This reduces the influence of positioning and the object’s surface properties on the measurement results. For the transducer’s auto-calibration, a predefined vibration of the measurement electrode is induced. This is achieved using a waveguide excited by a piezo element. The diameter of the developed SCT is 5 mm, with a frequency range of 10 kHz to 1 MHz, an object HFV amplitude measurement resolution of several picometers, and a repeatability error of several percent. |
| format | Article |
| id | doaj-art-425cd547e2e1486481e422c4162a23e7 |
| institution | OA Journals |
| issn | 1424-8220 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj-art-425cd547e2e1486481e422c4162a23e72025-08-20T01:49:03ZengMDPI AGSensors1424-82202025-03-01256163910.3390/s25061639Smart Capacitive Transducer for High-Frequency Vibration MeasurementVygantas Augutis0Gintautas Balčiūnas1Pranas Kuzas2Darius Gailius3Edita Raudienė4Metrology Institute, Kaunas University of Technology, Studentu Str., 50-454 Kaunas, LithuaniaMetrology Institute, Kaunas University of Technology, Studentu Str., 50-454 Kaunas, LithuaniaDepartment of Electronics Engineering, Kaunas University of Technology, Studentu Str., 50-445 Kaunas, LithuaniaMetrology Institute, Kaunas University of Technology, Studentu Str., 50-454 Kaunas, LithuaniaMetrology Institute, Kaunas University of Technology, Studentu Str., 50-454 Kaunas, LithuaniaA smart capacitive transducer (SCT) for high-frequency vibration (HFV) measurements was developed, featuring self-calibration for the improvement of measurement accuracy. Measurements using this transducer are performed by positioning it over a thin (10 µm) dielectric layer on a conductive surface. This method was shown to be a non-contact vibration measurement technique for solid surfaces at frequencies over 10 kHz. Auto-calibration is performed every time the SCT is placed on the object being measured. This reduces the influence of positioning and the object’s surface properties on the measurement results. For the transducer’s auto-calibration, a predefined vibration of the measurement electrode is induced. This is achieved using a waveguide excited by a piezo element. The diameter of the developed SCT is 5 mm, with a frequency range of 10 kHz to 1 MHz, an object HFV amplitude measurement resolution of several picometers, and a repeatability error of several percent.https://www.mdpi.com/1424-8220/25/6/1639auto-calibrating capacitive transducercapacitive transducerhigh-frequency vibration measurementnanometer displacement measurement |
| spellingShingle | Vygantas Augutis Gintautas Balčiūnas Pranas Kuzas Darius Gailius Edita Raudienė Smart Capacitive Transducer for High-Frequency Vibration Measurement Sensors auto-calibrating capacitive transducer capacitive transducer high-frequency vibration measurement nanometer displacement measurement |
| title | Smart Capacitive Transducer for High-Frequency Vibration Measurement |
| title_full | Smart Capacitive Transducer for High-Frequency Vibration Measurement |
| title_fullStr | Smart Capacitive Transducer for High-Frequency Vibration Measurement |
| title_full_unstemmed | Smart Capacitive Transducer for High-Frequency Vibration Measurement |
| title_short | Smart Capacitive Transducer for High-Frequency Vibration Measurement |
| title_sort | smart capacitive transducer for high frequency vibration measurement |
| topic | auto-calibrating capacitive transducer capacitive transducer high-frequency vibration measurement nanometer displacement measurement |
| url | https://www.mdpi.com/1424-8220/25/6/1639 |
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