摘要:
A piezoelectric material including a barium bismuth niobate-based tungsten bronze structure metal oxide having a high degree of orientation is provided. A piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust cleaning device including the piezoelectric material are also provided. A piezoelectric material includes a tungsten bronze structure metal oxide that includes metal elements which are barium, bismuth, and niobium, and tungsten. The metal elements satisfy following conditions on a molar basis: when Ba/Nb=a, 0.30≦a≦0.40, and when Bi/Nb=b, 0.012≦b≦0.084. The tungsten content on a metal basis is 0.40 to 3.00 parts by weight relative to 100 parts by weight of the tungsten bronze structure metal oxide. The tungsten bronze structure metal oxide has a c-axis orientation.
摘要翻译:提供了包括具有高取向度的铌酸铋铋基钨青铜结构金属氧化物的压电材料。 还提供了一种压电元件,液体排出头,超声波马达和包括压电材料的除尘装置。 压电材料包括钨青铜结构金属氧化物,其包括钡,铋和铌的金属元素和钨。 金属元素以摩尔为基准满足以下条件:当Ba / Nb = a,0.30≦̸ a≦̸ 0.40,当Bi / Nb = b时,0.012< lE; b≦̸ 0.084。 基于金属的钨含量相对于钨青铜结构金属氧化物100重量份为0.40〜3.00重量份。 钨青铜结构金属氧化物具有c轴取向。
摘要:
Provided is a piezoelectric ceramics that can achieve both high piezoelectric performance and a high Curie temperature. Also provided are a piezoelectric element, a liquid discharge head, an ultrasonic motor, and a dust removing device, which use the piezoelectric ceramics. The piezoelectric ceramics include a perovskite-type metal oxide expressed by a general formula (1): xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3, where M represents at least one type of element selected from the group consisting of Mg and Ni, x satisfies 0.40≦x≦0.80, y satisfies O≦y≦0.30, z satisfies 0.05≦z≦0.60, and x+y+z=1 is satisfied, and are oriented in a (111) plane in a pseudocubic expression.
摘要翻译:提供能够实现高压电性能和高居里温度的压电陶瓷。 还提供了使用压电陶瓷的压电元件,排液头,超声波马达和除尘装置。 压电陶瓷包括由通式(1)表示的钙钛矿型金属氧化物:xBaTiO3-yBiFeO3-zBi(M0.5Ti0.5)O3,其中M表示选自Mg和 Ni,x满足0.40≦̸ x≦̸ 0.80,y满足O≦̸ y≦̸ 0.30,z满足0.05≦̸ z≦̸ 0.60,并且x + y + z = 1,并且在(111) 假性表达。
摘要:
A radio base station BTS according to the present invention includes a timing adjustment unit 15 configured to adjust transmission timing of the frame to be transmitted by a second synchronous signal transmission unit, 12 based on processing delay time in the relay device 10 and round-trip time RTT of the radio equipment device RE at the relay device 10, and the radio equipment controller REC#1, #2 are configured to calculate round-trip time RTT of the radio equipment device RE at the radio equipment controller REC#1, #2, based on a difference T14 between transmission time of the first synchronous signal R1 and reception time of the fourth synchronous signal R4.
摘要:
In an acoustic design support apparatus, a speaker selection supporter selects a desired speaker as a candidate for use in a given space based on shape information representing a shape of the space. A speaker mounting angle optimizer calculates an optimal mounting direction of the selected speaker by selecting a mounting direction pattern which minimizes a degree of variation among sound pressure levels at a plurality of positions on a sound receiving surface defined in the space. An acoustic parameter calculator calculates a variety of acoustic parameters at sound receiving points within the space based on both of the shape information of the space and the optimal mounting direction of the speaker.
摘要:
In an acoustic design support apparatus, a speaker selection supporter selects a desired speaker as a candidate for use in a given space based on shape information representing a shape of the space. A speaker mounting angle optimizer calculates an optimal mounting direction of the selected speaker by selecting a mounting direction pattern which minimizes a degree of variation among sound pressure levels at a plurality of positions on a sound receiving surface defined in the space. An acoustic parameter calculator calculates a variety of acoustic parameters at sound receiving points within the space based on both of the shape information of the space and the optimal mounting direction of the speaker.
摘要:
Provided is an inverter-integrated electric compressor capable of reducing the size of an inverter accommodating section by modularizing a power circuit board and a control board and further reducing the size of an inverter device, as well as an accommodating section thereof, by improving the positional structure with respect to other electrical components. An inverter-integrated electric compressor including an inverter accommodating section provided on a periphery of a housing accommodating an inverter device includes an inverter module constructed by integrally modularizing a power circuit board and a control board, wherein attachment legs provided on both edges of at least one side surface of the inverter module protrude outward from a module main body, and the inverter module accommodates the inverter accommodating section with the attachment legs positioned in spaces at both ends of a glass-insulated terminal.
摘要:
To obtain a reflection film that does not undergo yellowing or a reduction in reflectance with a lapse of time by using, has excellent deadfold properties, generates less calorific when incinerated, and is degradable by microorganisms when subjected to earth filling, and causes no problem of waste disposal, the reflection film includes an aliphatic polyester based resin as a base resin and fine powder filler. The reflection film has pores inside thereof at a porosity of 50% or less. Preferably, the fine powder filler includes titanium oxide.
摘要:
An artificial hair bundle (10) is made up by mixing a first artificial hair made of a polyester resin (1, 2) and a second artificial hair made of a polyamide resin (5, 6), and the first artificial hair (1, 2) is made of polyethylene terephthalate and polybutylene terephthalate, having a cross-sectional size and bending rigidity similar to those of natural hair, wherein the bending rigidity is in the range of about 6.5 to 7.8×10−3 gf·cm2/strand at humidity 40%, and the first artificial hair (1, 2) suppresses bundling of the second artificial hair (5, 6), and the first and the second artificial hairs (1, 2, 5, 6) behave similarly to natural hair.
摘要:
A dead reckoning unit calculates vehicle position from a pitch angle and a yaw angle of dead reckoning sensors, a sensor installation pitch angle and a sensor installation yaw angle, and a moving distance calculated by a speed sensor, and calculates vehicle speed from an acceleration signal. On a first cycle, a first correction unit calculates the vehicle speed from signals output from the speed sensor, and corrects the pitch angle, the sensor installation pitch angle, and the sensor installation yaw angle, based on the difference between the thus calculated vehicle speed and the vehicle speed calculated by the dead reckoning unit. On a second cycle, a second correction unit corrects the pitch angle, the sensor installation pitch angle, the yaw angle, and the sensor installation yaw angle, by using vehicle position and speed output from a GPS receiver and vehicle position and speed output from the dead reckoning unit.