GB1155519A - Electromechanical Transducer - Google Patents
Electromechanical TransducerInfo
- Publication number
- GB1155519A GB1155519A GB5699367A GB5699367A GB1155519A GB 1155519 A GB1155519 A GB 1155519A GB 5699367 A GB5699367 A GB 5699367A GB 5699367 A GB5699367 A GB 5699367A GB 1155519 A GB1155519 A GB 1155519A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strip
- diaphragm
- piezo
- pin
- secured
- 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
- 238000006073 displacement reaction Methods 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 abstract 1
- 239000000956 alloy Substances 0.000 abstract 1
- 229910045601 alloy Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 abstract 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052782 aluminium Inorganic materials 0.000 abstract 1
- 230000006835 compression Effects 0.000 abstract 1
- 238000007906 compression Methods 0.000 abstract 1
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 239000011521 glass Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 239000010936 titanium Substances 0.000 abstract 1
- 229910052719 titanium Inorganic materials 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
- H04R21/00—Variable-resistance transducers
- H04R21/02—Microphones
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
- Impact Printers (AREA)
Abstract
1,155,519. Electromechanical transducers. STANDARD TELEPHONES & CABLES Ltd. 15 Dec., 1967, No. 56993/67. Heading H4J. A piezo-electric or piezo-resistive element is mounted on, or in, a flexible strip which is secured at its ends in such a way as to produce a compressive force along the length of the strip. The strip is coupled to a diaphragm or stylus so that displacement thereof cause buckling of the strip. The compressive force in the strip is said to reduce the energy required to operate the transducer. Fig. 1 shows an arrangement in which a diaphragm 1 is coupled to a strip 6 by a pin 4 of aluminium or titanium. Strip 6 is of steel, alloy or glass, and carries a piezo resistive element 7 of p-type silicon. The mounting of the strip 6 is such that the strip is under compression as indicated by the arrows C. In practice the diaphragm 1 may be mounted in an aperture on one side of a frame and the strip secured to the other side of the same frame and the pin may be replaced by a pip formed at the apex of the diaphragm. More than one element may be used, mounted, as shown in Fig. 3, to be positively and negatively curved and connected in a bridge circuit. In this arrangement the coupling member is formed as a bridge 14 which tends to amplify the displacement applied to the element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5699367A GB1155519A (en) | 1967-12-15 | 1967-12-15 | Electromechanical Transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5699367A GB1155519A (en) | 1967-12-15 | 1967-12-15 | Electromechanical Transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1155519A true GB1155519A (en) | 1969-06-18 |
Family
ID=10478073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5699367A Expired GB1155519A (en) | 1967-12-15 | 1967-12-15 | Electromechanical Transducer |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1155519A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673354A (en) * | 1969-05-08 | 1972-06-27 | Matsushita Electric Ind Co Ltd | Semiconductor stress transducer |
-
1967
- 1967-12-15 GB GB5699367A patent/GB1155519A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3673354A (en) * | 1969-05-08 | 1972-06-27 | Matsushita Electric Ind Co Ltd | Semiconductor stress transducer |
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