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Title:
Next generation AT-cut quartz crystal sensing devices
Authors:
ID
Matko, Vojko
(
Author
)
Files:
Sensors_2011_Matko_Next_Generation_AT-Cut_Quartz_Crystal_Sensing_Devices.pdf
(382,71 KB)
MD5: EDE90910ED269DDB103B50E5F2BBB3D7
http://www.mdpi.com/1424-8220/11/5/4474/
Language:
English
Work type:
Scientific work
Typology:
1.01 - Original Scientific Article
Organization:
FERI - Faculty of Electrical Engineering and Computer Science
Abstract:
Generally, AT-cut quartz crystals have a limited scope of use when it comes to high-precision measurement of very small impedance changes due to their nonlinear frequency-temperature characteristics in the range between 0 °C and 50 °C. The new method improving quartz oscillator frequency-temperature characteristic compensation is switching between two impedance loads. By modifying the oscillator circuit with two logic switches and two impedance loads, the oscillator can switch oscillation between two resonance frequencies. The difference in resonance frequencies compensates the frequency-temperature characteristics influence as well as the influence of of fset and quartz crystal ageing. The experimental results show that the new approach using the switching method highly improves second-to-second frequency stability from +/-0.125 Hz to +/-0.00001 Hz and minute-to-minute frequency stability from 0.1 Hz to 0.0001 Hz, which makes the high-precision measurement of aF and fH changes possible.
Keywords:
quartz crystal
,
switching oscillating method
,
temperature characteristic compensation
Publication status:
Published
Publication version:
Version of Record
Year of publishing:
2011
Number of pages:
str. 4474-4482
Numbering:
Letn. 5, št. 11
PID:
20.500.12556/DKUM-66374
ISSN:
1424-8220
UDC:
681.5
ISSN on article:
1424-8220
COBISS.SI-ID:
14953750
DOI:
10.3390/s110504474
NUK URN:
URN:SI:UM:DK:FUVK7RA7
Publication date in DKUM:
22.06.2017
Views:
1848
Downloads:
390
Metadata:
Categories:
Misc.
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Record is a part of a journal
Title:
Sensors
Shortened title:
Sensors
Publisher:
MDPI
ISSN:
1424-8220
COBISS.SI-ID:
10176278
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:
22.06.2017
Secondary language
Language:
Slovenian
Keywords:
kvarčni kristali
,
oscilacijska metoda
,
temperaturna kompenzacija
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