GB1431221A - Apparatus for measuring the characteristic resonance frequency of an electric element - Google Patents
Apparatus for measuring the characteristic resonance frequency of an electric elementInfo
- Publication number
- GB1431221A GB1431221A GB2351773A GB2351773A GB1431221A GB 1431221 A GB1431221 A GB 1431221A GB 2351773 A GB2351773 A GB 2351773A GB 2351773 A GB2351773 A GB 2351773A GB 1431221 A GB1431221 A GB 1431221A
- Authority
- GB
- United Kingdom
- Prior art keywords
- frequency
- reference circuit
- piezo
- resonant frequency
- under test
- 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
- 238000012360 testing method Methods 0.000 abstract 5
- 238000000034 method Methods 0.000 abstract 4
- 238000010276 construction Methods 0.000 abstract 2
- PCTMTFRHKVHKIS-BMFZQQSSSA-N (1s,3r,4e,6e,8e,10e,12e,14e,16e,18s,19r,20r,21s,25r,27r,30r,31r,33s,35r,37s,38r)-3-[(2r,3s,4s,5s,6r)-4-amino-3,5-dihydroxy-6-methyloxan-2-yl]oxy-19,25,27,30,31,33,35,37-octahydroxy-18,20,21-trimethyl-23-oxo-22,39-dioxabicyclo[33.3.1]nonatriaconta-4,6,8,10 Chemical compound C1C=C2C[C@@H](OS(O)(=O)=O)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2.O[C@H]1[C@@H](N)[C@H](O)[C@@H](C)O[C@H]1O[C@H]1/C=C/C=C/C=C/C=C/C=C/C=C/C=C/[C@H](C)[C@@H](O)[C@@H](C)[C@H](C)OC(=O)C[C@H](O)C[C@H](O)CC[C@@H](O)[C@H](O)C[C@H](O)C[C@](O)(C[C@H](O)[C@H]2C(O)=O)O[C@H]2C1 PCTMTFRHKVHKIS-BMFZQQSSSA-N 0.000 abstract 1
- 239000003990 capacitor Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 abstract 1
- 238000010408 sweeping 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H13/00—Measuring resonant frequency
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R17/00—Measuring arrangements involving comparison with a reference value, e.g. bridge
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7217608A FR2184442B1 (US08063081-20111122-C00242.png) | 1972-05-17 | 1972-05-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1431221A true GB1431221A (en) | 1976-04-07 |
Family
ID=9098645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2351773A Expired GB1431221A (en) | 1972-05-17 | 1973-05-17 | Apparatus for measuring the characteristic resonance frequency of an electric element |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3832630A (US08063081-20111122-C00242.png) |
| CH (1) | CH569263A5 (US08063081-20111122-C00242.png) |
| FR (1) | FR2184442B1 (US08063081-20111122-C00242.png) |
| GB (1) | GB1431221A (US08063081-20111122-C00242.png) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4015202A (en) * | 1975-10-01 | 1977-03-29 | Chevron Research Company | Automatic measurement and display of resonance frequencies of seismic detection elements |
| FR2427589A1 (fr) * | 1978-06-01 | 1979-12-28 | Mo Lesotekhnichesky Insti | Dispositif de mesure des frequences de resonance et d'antiresonance des resonateurs piezo-electriques |
| AT369549B (de) * | 1981-02-10 | 1983-01-10 | List Hans | Pruefeinrichtung zur bestimmung von schwingungseigenschaften |
| US4644259A (en) * | 1984-10-31 | 1987-02-17 | North American Philips Corporation | Nondestructive testing of multilayer ceramic capacitors |
| AT387286B (de) * | 1986-12-19 | 1988-12-27 | Avl Verbrennungskraft Messtech | Verfahren und einrichtung zur bestimmung von schwingungseigenschaften sowie zum betreiben eines piezoelektrischen wandlers |
| US5955855A (en) * | 1997-04-09 | 1999-09-21 | Medar, Inc. | Method and system for tuning a drive to its coupled motor to minimize motor resonance and sensing device for use therein |
| RU2538034C9 (ru) * | 2013-02-25 | 2015-07-20 | Федеральное Государственное Унитарное Предприятие "Всероссийский Научно-Исследовательский Институт Физико-Технических И Радиотехнических Измерений" (Фгуп "Вниифтри") | Бездемонтажный способ поверки виброакустических приемников |
| RU2541119C1 (ru) * | 2013-09-20 | 2015-02-10 | Федеральное государственное бюджетное учреждение науки Институт проблем управления им. В.А. Трапезникова Российской академии наук | Способ измерения резонансной частоты |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2476954A (en) * | 1945-10-23 | 1949-07-26 | Crystal Res Lab Inc | Apparatus for determining resonant frequency of piezoelectric quartz crystal blanks |
| US2681431A (en) * | 1951-05-09 | 1954-06-15 | Honeywell Regulator Co | Rebalanceable alternating-current bridge for frequency measurement |
| US2976604A (en) * | 1956-04-13 | 1961-03-28 | Research Corp | Measurement of piezoelectric crystal characteristics |
| US3049666A (en) * | 1958-01-31 | 1962-08-14 | Norman J Anderson | Method and apparatus for measurement of dynamic dissipation and related factors |
| US3026479A (en) * | 1959-11-23 | 1962-03-20 | Bell Telephone Labor Inc | Null type transistor alpha greater than unity measuring set |
| US3095254A (en) * | 1961-07-28 | 1963-06-25 | Industrial Nucleonics Corp | Indicating and recording device |
| US3230448A (en) * | 1962-09-21 | 1966-01-18 | Aga Ab | Impedance measuring bridge circuit |
| US3562641A (en) * | 1968-11-25 | 1971-02-09 | Gen Radio Co | Impedance-measuring transformer bridge with automatic digital balancing circuit |
-
1972
- 1972-05-17 FR FR7217608A patent/FR2184442B1/fr not_active Expired
-
1973
- 1973-05-11 CH CH671273A patent/CH569263A5/xx not_active IP Right Cessation
- 1973-05-16 US US00360674A patent/US3832630A/en not_active Expired - Lifetime
- 1973-05-17 GB GB2351773A patent/GB1431221A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH569263A5 (US08063081-20111122-C00242.png) | 1975-11-14 |
| US3832630A (en) | 1974-08-27 |
| FR2184442B1 (US08063081-20111122-C00242.png) | 1974-12-20 |
| FR2184442A1 (US08063081-20111122-C00242.png) | 1973-12-28 |
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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 |
Free format text: FOR 1431227 READ 1431221 IN JOURNAL 5003 PAGE 153 |