| Title: | High-precision hysteresis sensing of the quartz crystal inductance-to-frequency converter |
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| Authors: | ID Matko, Vojko (Author)
ID Milanovič, Miro (Author) |
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| Files: |  Clanek_Matko_Milanovic_i2016.pdf (3,93 MB)
MD5: 4750B33195FECDF5FFC7614ABAC31634
 http://www.mdpi.com/1424-8220/16/7/995
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| Language: | English |
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| Work type: | Scientific work |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: | FERI - Faculty of Electrical Engineering and Computer Science
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| Abstract: | A new method for the automated measurement of the hysteresis of the temperature-compensated inductance-to-frequency converter with a single quartz crystal is proposed. The new idea behind this method is a converter with two programmable analog switches enabling the automated measurement of the converter hysteresis, as well as the temperature compensation of the quartz crystal and any other circuit element. Also used is the programmable timing control device that allows the selection of different oscillating frequencies. In the proposed programmable method two different inductances connected in series to the quartz crystal are switched in a short time sequence, compensating the crystal’s natural temperature characteristics (in the temperature range between 0 and 50 °C). The procedure allows for the measurement of the converter hysteresis at various values of capacitance connected in parallel with the quartz crystal for the converter sensitivity setting at selected inductance. It, furthermore, enables the measurement of hysteresis at various values of inductance at selected parallel capacitance (sensitivity) connected to the quartz crystal. The article shows that the proposed hysteresis measurement of the converter, which converts the inductance in the range between 95 and 100 μH to a frequency in the range between 1 and 200 kHz, has only 7 × 10−13 frequency instability (during the temperature change between 0 and 50 °C) with a maximum 1 × 10−11 hysteresis frequency difference. |
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| Keywords: | inductance-to-frequency converter, hysteresis, automated measurement, sensor switching method, inductance, quartz crystal, temperature compensation |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Year of publishing: | 2016 |
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| Number of pages: | str. 1-14 |
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| Numbering: | Letn. 16, št. 7 |
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| PID: | 20.500.12556/DKUM-60706  |
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| ISSN: | 1424-8220 |
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| UDC: | 681.586 |
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| ISSN on article: | 1424-8220 |
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| COBISS.SI-ID: | 19646998 |
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| DOI: | 10.3390/s16070995 |
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| NUK URN: | URN:SI:UM:DK:8FMQDGJS |
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| Publication date in DKUM: | 30.06.2016 |
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| Views: | 2248 |
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| Downloads: | 475 |
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| Metadata: |    |
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| Categories: | Misc.
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