摘要:
A compound having a tungsten bronze structure exhibiting a high Curie temperature, good insulating resistance and mechanical quality factor, and excellent piezoelectric properties is provided. The compound contains a tungsten bronze structure oxide represented by general formula (1): x(BaB2O6)-y(CaB2O6)-z{(Bi1/2C1/2)B2O6} (1) where B represents at least one of Nb and Ta; C represents at least one of Na and K; x+y+z=1; x satisfies 0.2≦x≦0.85; y satisfies 0≦y≦0.5; and z satisfies 0
摘要翻译:提供了具有高居里温度,良好的绝缘电阻和机械品质因数以及优异的压电性能的钨青铜结构的化合物。 该化合物含有由通式(1)表示的钨青铜结构氧化物:x(BaB 2 O 6)-y(CaB 2 O 6)-z {(Bi1 / 2C1 / 2)B2O6}(1)其中B表示Nb和Ta中的至少一种 ; C表示Na和K中的至少一种; x + y + z = 1; x满足0.2≦̸ x≦̸ 0.85; y满足0≦̸ y≦̸ 0.5; z满足0
摘要:
A barium titanate piezoelectric ceramic having good piezoelectric properties and mechanical strength and a piezoelectric element that includes the ceramic are provided. A method for making a piezoelectric ceramic includes forming a compact composed of an oxide powder containing barium titanate particles, sintering the compact, and decreasing the temperature of the compact after the sintering. The sintering includes (A) increasing the temperature of the compact to a first temperature within a temperature range of a shrinking process of the compact; (B) increasing the temperature of the compact to a second temperature within a temperature range of a liquid phase sintering process of the compact after (A); (C) decreasing the temperature of the compact to a third temperature within the temperature range of the shrinking process of the compact after (B); and (D) retaining the third temperature after (C).
摘要:
Provided is a piezoelectric material which has satisfactory insulation property and piezoelectric property and which does not contain lead and potassium. The piezoelectric material includes a perovskite-type metal oxide that is represented by the following general formula (1): (NaxBa1-y)(NbyTi1-y)O3 General formula (1) where relationships of 0.80≦x≦0.95 and 0.85≦y≦0.95 are satisfied, and y×0.05 mol % or more to y×2 mol % or less of copper with respect to 1 mol of the perovskite-type metal oxide.
摘要翻译:提供具有令人满意的绝缘性能和压电性能并且不含铅和钾的压电材料。 压电材料包括由以下通式(1)表示的钙钛矿型金属氧化物:(NaxBa1-y)(NbyTi1-y)O3一般式(1)其中0.80 @ x @ 0.95和0.85 @ y @ 0.95,相对于1摩尔钙钛矿型金属氧化物,y×0.05摩尔%以上,y×2摩尔%以下的铜。
摘要:
A map difference data generation apparatus includes: most recent and supplementary map data storage devices storing primary most recent and supplementary map data, respectively; a map update reflection device generating secondly most recent and supplementary map data according to an update of a first link, and generating tertiary most recent and supplementary map data according to an update of a second link; a determination device determining a dependency relationship between the update of the first and second links, in accordance with results of searching a route in the tertiary most recent and supplementary map data between first and second nodes, which are both ends of the second link; and a map difference data generation device generating map difference data, which defines a combination of the update of the first and second links, when the update of the first and second links have the dependency relationship.
摘要:
Provided is a Bi-based piezoelectric material having good piezoelectric properties. The piezoelectric material includes a perovskite-type metal oxide represented by the following general formula (1): Ax(ZnjTi(1-j))l(MgkTi(1-k))mMnO3 General formula (1) where: A represents a Bi element, or one or more kinds of elements selected from the group consisting of trivalent metal elements and containing at least a Bi element; M represents at least one kind of an element selected from the group consisting of Fe, Al, Sc, Mn, Y, Ga, and Yb; and 0.9≦x≦1.25, 0.4≦j≦0.6, 0.4≦k≦0.6, 0.09≦l≦0.49, 0.19≦m≦0.64, 0.13≦n≦0.48, and l+m+n=1 are satisfied.
摘要翻译:提供具有良好的压电性能的Bi基压电材料。 压电材料包括由以下通式(1)表示的钙钛矿型金属氧化物:Ax(ZnjTi(1-j))l(MgkTi(1-k))mMnO3通式(1)其中:A表示Bi元素 ,或选自三价金属元素并且至少含有Bi元素的一种或多种元素; M表示选自Fe,Al,Sc,Mn,Y,Ga和Yb中的至少一种元素; 和0.9 @ x @ 1.25,0.4 @ j @ 0.6,0.4 @ k @ 0.6,0.09 @ l @ 0.49,0.19 @ m @ 0.64,0.13 @ n @ 0.48和l + m + n = 1。
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.