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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Spassov, L. Gadjanova, V. Velcheva, R. Dulmet, B. |
| Copyright Year | 1986 |
| Abstract | A new miniaturized design of the thermosensitive quartz resonator (TSQR) using an NLC cut (yxl/-31deg30psila) with a fundamental frequency of 29.3 MHz was created in the Acoustoelectronics Laboratory of ISSP-BAS for use in a wide temperature range (4.2 K to 450 K) as highly sensitive quartz temperature sensors (QTS). This paper presents the results of the investigations of the short- and long-term frequency stability of QTS. The short-term frequency stability of QTS was measured for averaging times up to 150 s at three constant temperatures: liquid helium (4.2 K), liquid nitrogen (77 K), and melting ice (0degC). The short-term frequency stability is 6.8 times 10-9 at 0degC for t = 15 s, which permits a temperature sensitivity of 2 times 10-4 K. The long-term stability (aging) was investigated at room temperature and at 80deg C for 500 days. The aging characteristics at 25 degC and 80 degC are compared. It was observed that the frequency change does not exceed 5 times 10-7 after the 25th day of accelerated aging at 80 degC. This guarantees a reliable operation of the sensor, without additional calibration, for several years. |
| File Size | 485698 |
| File Format | |
| ISSN | 08853010 |
| Volume Number | 55 |
| Issue Number | 7 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-07-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Stability Resonance Temperature sensors Aging Laboratories Temperature distribution Frequency measurement Nitrogen Ice Thermosensitive quartz resonators |
| Content Type | Text |
| Resource Type | Article |
| Subject | Acoustics and Ultrasonics Instrumentation Electrical and Electronic Engineering |
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