摘要:
A piezoelectric ceramic composition includes: a composite oxide, as a main component thereof, represented by the composition formula, Pba[(Zn1/3Nb2/3)xTiyZrz]O3, wherein a, x, y and z satisfy the following relations, 0.96≦a≦1.03, 0.005≦x≦0.047, 0.42≦y≦0.53, 0.45≦z≦0.56, and x+y+z=1; and the following additives in the indicated percentages by mass in relation to the main component, Cu as a first additive, in a content α, in terms of Cu2O, falling within a range 0
摘要翻译:压电陶瓷组合物包括:以组成式表示的作为其主要成分的复合氧化物,<?in-line-formula description =“In-line formula”end =“lead”?> Pb < [(Zn 1/3 N 2 Nb 3/3)x Ti x Z z z z 其中a,x,y和z满足以下关系,其中a,x,y和z满足以下关系: 0.96 <= a <= 1.03,0.005 <= x <= 0.047,0.42 <= y <= 0.53,0.45 <= z <= 0.56,x + y + z = 1; 和相对于主要成分(以Cu换算为Cu)为基准,以含量α表示的以Cu 2 O 2表示的以质量表示的以下添加剂,其含量为0 < = 0.5%; Dy,Nd,Eu,Gd,Tb,Ho和Er中的至少一种作为第二添加剂,以氧化物计,含量β在0≤-0.3%的范围内; 和作为第三添加剂的Ta,Nb,W和Sb中的至少一种,以含量γ表示,以氧化物计,在0≤γ≤0.6%的范围内。
摘要:
Provided is a piezoelectric ceramic composition capable of being sintered at low temperatures and in a low-oxygen reductive atmosphere and capable of attaining a sufficient displacement even at high voltages of 1 kV/mm or more. The piezoelectric ceramic composition includes: a composite oxide, as a main constituent thereof, represented by the following composition formula; Cu and/or Ag, each as a first additive, Cu being included in a content α, in terms of Cu2O, falling within a range 0
摘要翻译:提供一种压电陶瓷组合物,其能够在低温和低氧还原气氛中烧结,并且即使在1kV / mm以上的高电压下也能够获得足够的位移。 压电陶瓷组合物包括:作为其主要成分的复合氧化物,由以下组成式表示; Cu和/或Ag,各自作为第一添加剂,Cu以包含在Cu 2 O 2中的含量α中,在0 <α≤0.5质量%的范围内,Ag为 相对于主要成分,包含在相对于主要成分的0 <β≤0.4质量%范围内的Ag 2 O 3的含量β中。 其中:组成式:Pb> [SUB x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x 其中0.96 <= a <= 1.03,0.005 <= x <0.05,0.42 <= y <= 0.53, 0.45 <= z <= 0.56,x + y + z = 1。
摘要:
An emergency notification uses a normal cellular telephone terminal instead of a dedicated terminal without requiring communication using a voice. An emergency notification system has a mobile communication network including a cellular telephone terminal, an emergency notification device for receiving an emergency notification, a communication line connecting the mobile communication network and the emergency notification device, and the cellular telephone terminal including display means for displaying a menu for identifying kind of emergency notification on a display screen and means for performing the emergency notification in response to selection of one of items in the menu by a user.
摘要:
A charging device of the present invention includes a charge roller adjoining or contacting the surface of a photoconductive element. A DC and an AC voltage source output a DC and an AC voltage, respectively. A voltage applying device superposes the DC and AC voltage and applies the resulting superposed voltage to the charge roller. A waveform controller causes the AC voltage source to generate an AC voltage having the waveform pattern of particular noise and frequency lying in a preselected range.
摘要:
A photoreceptor including a support and a photosensitive layer formed thereon, optionally an undercoat layer between the support and the photosensitive layer, wherein when a group of data consisting of N samples of the height x(t)(&mgr;m) of a profile at the interface of the support on the side of the photosensitive layer, the interface of the photosensitive layer on the side of the support, and/or the interface of the undercoat layer on the side of the photosensitive layer, measured perpendicular to a horizontal direction of the support, taken at &Dgr;t(&mgr;m) intervals in the horizontal direction, is subjected to Fourier transformation in accordance with a formula as specified in the specification, in a power spectrum obtained by the Fourier transformation, I(S) represented by a formula specified in the specification has a particular value, a method of evaluating the above photoreceptor, a method of producing the photoreceptor, and an image formation apparatus in which the photoreceptor is incorporated are disclosed.
摘要:
A digital data distribution system that comprises a broadcasting station and an end station. The broadcasting station broadcasts a broadcast signal repetitively modulated with a digital information signal. The digital information signal includes a file group composed of body files containing any or all of audio, graphics and text information. The end system includes a receiver, a user interface, a memory, a controller and a reproduction section. The receiver receives the broadcast signal from the broadcasting station and demodulates the digital information signal from the broadcast signal to generate a digital bit stream. The user interface allows a user to select at least one of the body files for storage as a selected body file. The memory is substantially smaller than the file group. The controller identifies the selected body file in the digital bit stream and causes the selected body file to be stored in the memory. The reproduction section reproduces the audio, graphics or text information contained in the selected body file stored in the memory.
摘要:
A dip coating apparatus including a substrate supporter which supports a substrate to be coated and which has a gas discharger which has a plurality of holes formed therein from which a gas is discharged; a gas supplying passage through which the gas is supplied to the gas discharger; and a gas supplying valve which is disposed at a position in the gas supplying passage and in which the gas is fed to the gas discharger when the gas supplying valve is opened, wherein a pressure loss in the gas discharger is greater than two times a pressure loss in the gas supplying passage between the gas supplying valve and the gas discharger.
摘要:
A miniature motor with a worm reduction gear comprising a miniature motor having a motor shaft, which is of a relatively small diameter and which is extended to a predetermined length, at least three bearings supporting the motor shaft, and a worm having a shaft hole into which the motor shaft is inserted. Since the miniature motor and the worm reduction gear are manufactured separately, and subsequently assembled together by press-fitting the motor shaft in to the shaft hole of the worm the assembly of the miniature motor with a worm reduction gear is facilitated. The use of a motor shaft having a diameter smaller than the diameter of the worm helps reduce the size and weight of the miniature motor with a worm reduction gear.
摘要:
A photoconductive device having a photoconductive layer which includes an amorphous semiconductor layer capable of charge multiplication in at least a part thereof is disclosed. The method of operating such a photoconductive device is also disclosed. By using the avalanche effect of the amorphous semiconductor layer, it is possible to realize a highly sensitive photoconductive device while maintaining low lag property.
摘要:
A photoconductive device having a photoconductive layer which includes an amorphous semiconductor layer capable of charge multiplication in at least a part thereof is disclosed. The method of operating such a photoconductive device is also disclosed. By using the avalanche effect of the amorphous semiconductor layer, it is possible to realize a highly sensitive photoconductive device while maintaining low lag property.