DE1916849A1 - Ultraschallwandler und Verfahren zu seiner Herstellung - Google Patents
Ultraschallwandler und Verfahren zu seiner HerstellungInfo
- Publication number
- DE1916849A1 DE1916849A1 DE19691916849 DE1916849A DE1916849A1 DE 1916849 A1 DE1916849 A1 DE 1916849A1 DE 19691916849 DE19691916849 DE 19691916849 DE 1916849 A DE1916849 A DE 1916849A DE 1916849 A1 DE1916849 A1 DE 1916849A1
- Authority
- DE
- Germany
- Prior art keywords
- crystal
- powder
- plastic
- piezoelectric
- composite
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 title claims description 7
- 239000013078 crystal Substances 0.000 claims description 34
- 239000000843 powder Substances 0.000 claims description 24
- 239000002131 composite material Substances 0.000 claims description 9
- 229910052709 silver Inorganic materials 0.000 claims description 7
- 239000004332 silver Substances 0.000 claims description 7
- 229920001187 thermosetting polymer Polymers 0.000 claims description 7
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 6
- 230000005684 electric field Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000011324 bead Substances 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 claims description 2
- 229910002113 barium titanate Inorganic materials 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229920003002 synthetic resin Polymers 0.000 claims description 2
- 239000000057 synthetic resin Substances 0.000 claims description 2
- 230000010287 polarization Effects 0.000 claims 2
- 239000003795 chemical substances by application Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 238000001816 cooling Methods 0.000 claims 1
- 238000003825 pressing Methods 0.000 claims 1
- 238000007493 shaping process Methods 0.000 claims 1
- 239000000463 material Substances 0.000 description 5
- 238000002604 ultrasonography Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 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 description 2
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/028—Electrets, i.e. having a permanently-polarised dielectric having a heterogeneous dielectric
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
- H01G7/021—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric
- H01G7/023—Electrets, i.e. having a permanently-polarised dielectric having an organic dielectric of macromolecular compounds
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
- H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/80—Constructional details
- H10N30/85—Piezoelectric or electrostrictive active materials
- H10N30/852—Composite materials, e.g. having 1-3 or 2-2 type connectivity
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Joining Of Glass To Other Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1604868 | 1968-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1916849A1 true DE1916849A1 (de) | 1969-11-06 |
Family
ID=10070199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19691916849 Pending DE1916849A1 (de) | 1968-04-03 | 1969-04-02 | Ultraschallwandler und Verfahren zu seiner Herstellung |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE1916849A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1266145A (enrdf_load_stackoverflow) |
| NL (1) | NL6905280A (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2492074A1 (fr) * | 1980-10-11 | 1982-04-16 | Pfeiffer Vakuumtechnik | Installation pour rechauffer et secher des pieces sous vide par condensation de vapeur et separation d'un second liquide a point d'ebullition plus eleve |
| DE3208456A1 (de) * | 1982-03-09 | 1983-09-22 | Siemens AG, 1000 Berlin und 8000 München | Piezoelektrisches schwingsystem |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6124664A (en) | 1998-05-01 | 2000-09-26 | Scimed Life Systems, Inc. | Transducer backing material |
-
1968
- 1968-04-03 GB GB1604868A patent/GB1266145A/en not_active Expired
-
1969
- 1969-04-02 DE DE19691916849 patent/DE1916849A1/de active Pending
- 1969-04-03 NL NL6905280A patent/NL6905280A/xx unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2492074A1 (fr) * | 1980-10-11 | 1982-04-16 | Pfeiffer Vakuumtechnik | Installation pour rechauffer et secher des pieces sous vide par condensation de vapeur et separation d'un second liquide a point d'ebullition plus eleve |
| DE3208456A1 (de) * | 1982-03-09 | 1983-09-22 | Siemens AG, 1000 Berlin und 8000 München | Piezoelektrisches schwingsystem |
Also Published As
| Publication number | Publication date |
|---|---|
| NL6905280A (enrdf_load_stackoverflow) | 1969-10-07 |
| GB1266145A (enrdf_load_stackoverflow) | 1972-03-08 |
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