GB311055A - Improvements in or relating to piezo-electric substances - Google Patents
Improvements in or relating to piezo-electric substancesInfo
- Publication number
- GB311055A GB311055A GB9455/28A GB945528A GB311055A GB 311055 A GB311055 A GB 311055A GB 9455/28 A GB9455/28 A GB 9455/28A GB 945528 A GB945528 A GB 945528A GB 311055 A GB311055 A GB 311055A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystals
- television
- oils
- depositing
- hemihedral
- 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
- 239000000126 substance Substances 0.000 title abstract 2
- 239000013078 crystal Substances 0.000 abstract 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 abstract 2
- 238000000151 deposition Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 abstract 2
- 229920002160 Celluloid Polymers 0.000 abstract 1
- 239000013543 active substance Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- KMPWYEUPVWOPIM-UHFFFAOYSA-N cinchonidine Natural products C1=CC=C2C(C(C3N4CCC(C(C4)C=C)C3)O)=CC=NC2=C1 KMPWYEUPVWOPIM-UHFFFAOYSA-N 0.000 abstract 1
- KMPWYEUPVWOPIM-LSOMNZGLSA-N cinchonine Chemical compound C1=CC=C2C([C@@H]([C@H]3N4CC[C@H]([C@H](C4)C=C)C3)O)=CC=NC2=C1 KMPWYEUPVWOPIM-LSOMNZGLSA-N 0.000 abstract 1
- LOUPRKONTZGTKE-UHFFFAOYSA-N cinchonine Natural products C1C(C(C2)C=C)CCN2C1C(O)C1=CC=NC2=CC=C(OC)C=C21 LOUPRKONTZGTKE-UHFFFAOYSA-N 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 239000003989 dielectric material Substances 0.000 abstract 1
- 230000005684 electric field Effects 0.000 abstract 1
- 239000008151 electrolyte solution Substances 0.000 abstract 1
- 238000001704 evaporation Methods 0.000 abstract 1
- 230000008020 evaporation Effects 0.000 abstract 1
- 239000003925 fat Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000010297 mechanical methods and process Methods 0.000 abstract 1
- 230000005226 mechanical processes and functions Effects 0.000 abstract 1
- 239000000025 natural resin Substances 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
- 230000010287 polarization Effects 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 238000001556 precipitation Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 239000012047 saturated solution Substances 0.000 abstract 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 abstract 1
- 239000001993 wax Substances 0.000 abstract 1
- 239000011787 zinc oxide Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N10/00—Thermoelectric devices comprising a junction of dissimilar materials, i.e. devices exhibiting Seebeck or Peltier effects
- H10N10/80—Constructional details
- H10N10/85—Thermoelectric active materials
- H10N10/851—Thermoelectric active materials comprising inorganic compositions
- H10N10/853—Thermoelectric active materials comprising inorganic compositions comprising arsenic, antimony or bismuth
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Liquid Crystal Substances (AREA)
Abstract
311,055. Freedman, P., and Rickets, W. J. March 29, 1928. Television. - Substances possessing piezoelectric properties, and also in some cases the property of rotating the plane of polarization of light, are produced artificially from a dielectric material, preferably one with a high dielectric constant, and comprise a multiplicity of suitably orientated hemihedral crystals in close juxtaposition or embedded in a suitable medium. The dielectric may be composed wholly or partly of one or more waxes, hydrogenated fats or oils, or natural resins, either separately or mixed in suitable proportions ; or it may be composed partly of celluloid, vitreous material, or the like. Hemihedral crystal structure is obtained by incorporating one or more optically operative bodies, such as zinc oxide, neutral sulphates of cinchonine, or ouprein, dicamphahexandion, and dicamphahexandionperoxide or the optically-active substances present in the oils and resins can be relied upon. Crystal orientation is obtained (1) by depositing the crystals from a liquid under the influence of an electric field or (2) by depositing the crystals on an electrode from an electrolyte solution or (3) by precipitation from a saturated solution on cooling or evaporation or on addition of a precipitating agent or (4) by a mechanical process such as repeated rolling of the crystalline body. The artificial crystal may be used as a light interrupter in television and like systems.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9455/28A GB311055A (en) | 1928-03-29 | 1928-03-29 | Improvements in or relating to piezo-electric substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9455/28A GB311055A (en) | 1928-03-29 | 1928-03-29 | Improvements in or relating to piezo-electric substances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB311055A true GB311055A (en) | 1929-05-09 |
Family
ID=9872282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9455/28A Expired GB311055A (en) | 1928-03-29 | 1928-03-29 | Improvements in or relating to piezo-electric substances |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB311055A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2420864A (en) * | 1943-04-17 | 1947-05-20 | Chilowsky Constantin | Piezoelectric plastic material and method of making same |
| US3091707A (en) * | 1960-04-07 | 1963-05-28 | Bell Telephone Labor Inc | Piezoelectric devices utilizing zinc oxide |
| DE1616606B1 (en) * | 1960-04-07 | 1970-04-30 | Western Electric Co | Piezoelectric device |
-
1928
- 1928-03-29 GB GB9455/28A patent/GB311055A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2420864A (en) * | 1943-04-17 | 1947-05-20 | Chilowsky Constantin | Piezoelectric plastic material and method of making same |
| US3091707A (en) * | 1960-04-07 | 1963-05-28 | Bell Telephone Labor Inc | Piezoelectric devices utilizing zinc oxide |
| DE1616606B1 (en) * | 1960-04-07 | 1970-04-30 | Western Electric Co | Piezoelectric device |
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