GB1439725A - Method for checking the quality of a piezoelectric material - Google Patents
Method for checking the quality of a piezoelectric materialInfo
- Publication number
- GB1439725A GB1439725A GB423974A GB423974A GB1439725A GB 1439725 A GB1439725 A GB 1439725A GB 423974 A GB423974 A GB 423974A GB 423974 A GB423974 A GB 423974A GB 1439725 A GB1439725 A GB 1439725A
- Authority
- GB
- United Kingdom
- Prior art keywords
- tan
- different
- plot
- piezoelectric material
- crystals
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000000034 method Methods 0.000 title abstract 3
- 239000000463 material Substances 0.000 title abstract 2
- 239000013078 crystal Substances 0.000 abstract 3
- 238000011088 calibration curve Methods 0.000 abstract 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 238000005259 measurement Methods 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 238000006467 substitution reaction Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/22—Measuring piezoelectric properties
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
1439725 Selecting piezoelectric crystals VESS ORDENA TBUDO KRAS ZNAM N I INST SINTEZA MINERAL SYRYA VNIISIMS 30 Jan 1974 04239/74 Heading H1E The quality factor (Q) of a piezoelectric material is assessed by measuring the frequency f at which the tangent of the loss angle (tan #) is a maximum. It is shown that such maxima occur at the same frequency in the curves of tan # versus f for different cuts of the same quartz crystal, and at different frequencies for different crystals. Moreover, a plot of log max against Q (measured) shows proportionality between these two factors and the plot serves as a calibration curve for assessment of Q. The measurements of tan # are made at constant temperature using a known bridge substitution method. It is stated that the method is also applicable to piezoceramics.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB423974A GB1439725A (en) | 1974-01-30 | 1974-01-30 | Method for checking the quality of a piezoelectric material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB423974A GB1439725A (en) | 1974-01-30 | 1974-01-30 | Method for checking the quality of a piezoelectric material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1439725A true GB1439725A (en) | 1976-06-16 |
Family
ID=9773352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB423974A Expired GB1439725A (en) | 1974-01-30 | 1974-01-30 | Method for checking the quality of a piezoelectric material |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1439725A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2499234C1 (en) * | 2012-05-11 | 2013-11-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "ЮЖНЫЙ ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ" | Method of controlling quality factor of piezoelectric resonators and apparatus for realising said method |
-
1974
- 1974-01-30 GB GB423974A patent/GB1439725A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2499234C1 (en) * | 2012-05-11 | 2013-11-20 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "ЮЖНЫЙ ФЕДЕРАЛЬНЫЙ УНИВЕРСИТЕТ" | Method of controlling quality factor of piezoelectric resonators and apparatus for realising said method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |