GB1526950A - Ultrasonic transducers - Google Patents
Ultrasonic transducersInfo
- Publication number
- GB1526950A GB1526950A GB3834375A GB3834375A GB1526950A GB 1526950 A GB1526950 A GB 1526950A GB 3834375 A GB3834375 A GB 3834375A GB 3834375 A GB3834375 A GB 3834375A GB 1526950 A GB1526950 A GB 1526950A
- Authority
- GB
- United Kingdom
- Prior art keywords
- lead
- counterbore
- disc
- button
- diaphragm
- 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
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical group [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 4
- 238000000576 coating method Methods 0.000 abstract 3
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 abstract 2
- 239000011248 coating agent Substances 0.000 abstract 2
- 239000000463 material Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052759 nickel Inorganic materials 0.000 abstract 2
- 229910052709 silver Inorganic materials 0.000 abstract 2
- 239000004332 silver Substances 0.000 abstract 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 239000000356 contaminant Substances 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 abstract 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0644—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element
- B06B1/0662—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface
- B06B1/0666—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a single piezoelectric element with an electrode on the sensitive surface used as a diaphragm
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Mechanical Engineering (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
1526950 Ultrasonic transducers UNITED KINGDOM ATOMIC ENERGY AUTHORITY 18 Nov 1976 [18 Sept 1975] 38343/75 Heading H4J An ultrasonic transducer for use in liquid sodium (e.g. up to 600‹ C.) comprises piezoelectric material, e.g. lead zirconate titanate, having a metal coating bonded to a nickel diaphragm with lead. The metal coating is preferably silver. A nickel diaphragm disc, 30 mm. diameter, 3 mm. thick has a first counterbore 2 and a second counterbore 3. It is heated under vacuum at 500-600‹ C. for 10 minutes to remove contaminants. A lead button is then placed in counterbore 3 and the disc is reheated to melt the lead and bond the button to it. The base of counterbore 2 and the lead button are machined to a common face to leave a lead film. The piezoelectric member 4 having silver face coatings is placed centrally and the disc is finally heated to 330‹ C. to melt the lead film and, on cooling, to bond the piezoelectric material to the diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3834375A GB1526950A (en) | 1976-11-18 | 1976-11-18 | Ultrasonic transducers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3834375A GB1526950A (en) | 1976-11-18 | 1976-11-18 | Ultrasonic transducers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1526950A true GB1526950A (en) | 1978-10-04 |
Family
ID=10402849
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3834375A Expired GB1526950A (en) | 1976-11-18 | 1976-11-18 | Ultrasonic transducers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1526950A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0424936A2 (en) * | 1989-10-27 | 1991-05-02 | Hoechst CeramTec Aktiengesellschaft | High-temperature resistant piezoelectric transducer and process for production thereof |
| EP0730877A1 (en) * | 1995-03-06 | 1996-09-11 | Fisons Corporation | Nebulizing element and device |
| WO2008130462A1 (en) * | 2007-04-18 | 2008-10-30 | Mine Safety Appliances Company | Electroacoustic transducer |
| WO2020194026A1 (en) | 2019-03-23 | 2020-10-01 | Secretary, Department Of Atomic Energy | Diffusion bonding of piezoelectric crystal to metal wear plate |
-
1976
- 1976-11-18 GB GB3834375A patent/GB1526950A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0424936A2 (en) * | 1989-10-27 | 1991-05-02 | Hoechst CeramTec Aktiengesellschaft | High-temperature resistant piezoelectric transducer and process for production thereof |
| EP0424936A3 (en) * | 1989-10-27 | 1992-02-26 | Hoechst Ceramtec Aktiengesellschaft | High-temperature resistant piezoelectric transducer and process for production thereof |
| EP0730877A1 (en) * | 1995-03-06 | 1996-09-11 | Fisons Corporation | Nebulizing element and device |
| WO2008130462A1 (en) * | 2007-04-18 | 2008-10-30 | Mine Safety Appliances Company | Electroacoustic transducer |
| US8229142B2 (en) | 2007-04-18 | 2012-07-24 | Mine Safety Appliances Company | Devices and systems including transducers |
| WO2020194026A1 (en) | 2019-03-23 | 2020-10-01 | Secretary, Department Of Atomic Energy | Diffusion bonding of piezoelectric crystal to metal wear plate |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |