GB619679A - Improvements in or relating to piezoelectric vibrator - Google Patents
Improvements in or relating to piezoelectric vibratorInfo
- Publication number
- GB619679A GB619679A GB8299/46A GB829946A GB619679A GB 619679 A GB619679 A GB 619679A GB 8299/46 A GB8299/46 A GB 8299/46A GB 829946 A GB829946 A GB 829946A GB 619679 A GB619679 A GB 619679A
- Authority
- GB
- United Kingdom
- Prior art keywords
- crystals
- vibrate
- electrodes
- bus
- phase
- 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
- 239000013078 crystal Substances 0.000 abstract 8
- 238000012986 modification Methods 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- 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
- B06B1/0607—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 multiple elements
- B06B1/0622—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 multiple elements on one surface
- B06B1/0629—Square array
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
619,679. Sound transmitting and receiving devices. SUBMARINE SIGNAL CO. March 18, 1946, No. 8299. Convention date, Oct. 8, 1941. [Class 40 (iv)] A piezo-electric vibrator comprises an elongated element 1 having mounted in its sides piezo-electric crystals 10, 11, 12 and 13, successive crystals along the vibrator at any instant of operation being arranged to vibrate in opposite phase by suitable arrangement of the electrodes or crystals. In the arrangement shown in Fig. 8, the oscillator 651 imparts opposing polarity to similarly disposed pairs of crystals which thus vibrate in opposed phase. In the arrangement shown in Fig. 9, the oscillator supplies a similar phase of current to each crystal pair, but one pair of crystals is physically reversed with respect to the other. The electrodes on the crystals are extended by ribbons 22.to bus-wires 23 which are connected to a bus-bar 30<SP>1</SP>. All the units are mounted in grooves in a plate 2 which is provided with a thin section 3 so that it may vibrate piston manner and communicate its vibration to water that is in contact with plate 2. In modifications, the units 1 may be lengthened to contain a greater number of vibrating crystals and they may be secured at both top and bottom to vibrating diaphragms. Specifications 595,154 and 597,421 are referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US619679XA | 1941-10-08 | 1941-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB619679A true GB619679A (en) | 1949-03-14 |
Family
ID=22039348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8299/46A Expired GB619679A (en) | 1941-10-08 | 1946-03-18 | Improvements in or relating to piezoelectric vibrator |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB619679A (en) |
-
1946
- 1946-03-18 GB GB8299/46A patent/GB619679A/en not_active Expired
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