摘要:
A piezoelectric gas jet generator includes a piezoelectric vibrator and upper and lower volume-varying chambers formed above and below the piezoelectric vibrator. In order to effectively use the movement of air supplied with the vibration of the piezoelectric vibrator, plural upper supply pipes and lower supply pipes communicating with the upper and lower volume-varying chambers and protruding from an upper housing and a lower housing are made to protrude in a direction parallel to the plane of the piezoelectric vibrator so as to be parallel to each other. Here, the upper supply pipes and the lower supply pipes are located at different planar positions.
摘要:
A piezoelectric gas jet generator includes a piezoelectric vibrator and upper and lower volume-varying chambers formed above and below the piezoelectric vibrator. In order to effectively use the movement of air supplied with the vibration of the piezoelectric vibrator, plural upper supply pipes and lower supply pipes communicating with the upper and lower volume-varying chambers and protruding from an upper housing and a lower housing are made to protrude in a direction parallel to the plane of the piezoelectric vibrator so as to be parallel to each other. Here, the upper supply pipes and the lower supply pipes are located at different planar positions.
摘要:
Exemplary embodiments provided a conductive paste including an organic gold compound and a glass component in a solvent. When electrodes are formed on both surfaces of piezoelectric members using the conductive paste according to the invention, it is possible to improve the close adhesion property between the electrodes and the piezoelectric members eliminate ion migration, and lower electric resistances of the electrodes.
摘要:
A diaphragm air pump includes a diaphragm; and upper and lower housings that interpose the diaphragm such that a variable volume chamber is formed over and under the diaphragm. The diaphragm air pump vibrates the diaphragm to obtain a pump operation, a circular concave portion into which the diaphragm that is circular in plan view is fitted is formed in any one of the upper and lower housings, a ring-shaped groove for housing a seal member is formed in the other, the ring-shaped groove having inner and outer diameters which are set across the circular concave portion, and a ring-shaped elastic seal member which is compressively deformed across the periphery of the diaphragm by the upper and lower housings is housed in the ring-shaped groove.
摘要:
The purpose of the invention is to provide a resin, which has a high refractive index, excellent heat resistance and moldability, and high transparency, and is useful as a material for configuring optical devices, etc. The invention provides a resin comprising acyl hydrazone bonds and having a number average molecular weight of 500-500,000, wherein the acyl hydrazone bond equivalent is 100-4000.
摘要:
The purpose of the invention is to provide a resin, which has a high refractive index, excellent heat resistance and moldability, and high transparency, and is useful as a material for configuring optical devices, etc. The invention provides a resin comprising acyl hydrazone bonds and having a number average molecular weight of 500-500,000, wherein the acyl hydrazone bond equivalent is 100-4000.
摘要:
Embodiments of the present disclosure may include a piezoelectric pump having: a piezoelectric vibrator including a main shim that may be formed of a conductive thin metal plate and a piezoelectric element layer that may be formed on the main shim; and a pair of ring-shaped support members that may support front and rear sides of a circumferential portion of the piezoelectric vibrator such that a pump chamber and an air chamber formed on the front and rear sides of the piezoelectric vibrator may be fluid-tightly sealed. The ring-shaped support members may support both sides of a circumferential portion of the piezoelectric element layer of the piezoelectric vibrator, and the piezoelectric vibrator may be vibrated to perform a pumping operation.
摘要:
A nonreciprocal circuit element includes a magnetic plate, a common electrode on a first surface of the magnetic plate, and first, second, and third central conductors each including a pair of divisions. The three central conductors extend from the common electrode, are bent along the magnetic plate towards a second surface of the magnetic plate, and cross one another on the second surface of the magnetic plate at a predetermined angle relative to one another. The first and second central conductors are connected to input and output terminals. The nonreciprocal circuit element satisfies the relationship θ1>θ2, where θ1 is the angle between the divisions of the first central conductor and θ2 is the angle between the divisions of the second central conductor, when the first central conductor is farther away from the magnetic plate than the second central conductor.
摘要:
In a nonreciprocal circuit device, receiving surfaces for bending first and second line conductors are formed at the respective ends of the confronting two sides of a magnetic substrate, the first and second line conductors are bent to the other surface of the magnetic substrate through the receiving surfaces thereof as well as disposed on the other surface of the magnetic substrate along the diagonal lines.
摘要:
A garnet ferrite used for a non-reciprocal circuit device contains Fe in an amount lower than the value derived from stoichiometry by 0.5% to 5%, and more preferably by 1% to 3%. The garnet ferrite can exhibit a low insertion loss in a high-frequency band of more than 5 MHz.