摘要:
Objects of the present invention are to provide a piezoelectric ceramic composition which contains substantially no lead, which exhibits excellent piezoelectric characteristics, and which has high heat durability; and to provide a piezoelectric element including the composition. The piezoelectric ceramic composition contains M1 (a divalent metallic element, or a metallic element combination formally equivalent to a divalent metallic element); M2 (a tetravalent metallic element, or a metallic element combination formally equivalent to a tetravalent metallic element); and M3 (a metallic element of a sintering aid component), wherein, when these metallic elements constitute the formula [(½)aK2O-(½)bNa2O-cM1O-(½)dNb2O5-eM2O2], a, b, c, d, and e in the formula satisfy the following relations: 0
摘要翻译:本发明的目的是提供一种基本上不含铅的压电陶瓷组合物,其表现出优异的压电特性,并且具有高耐热性; 并提供包括该组合物的压电元件。 压电陶瓷组合物含有M 1(二价金属元素或正式等价于二价金属元素的金属元素组合); M 2(四价金属元素或与四价金属元素正式相当的金属元素组合); 和M 3(烧结助剂组分的金属元素),其中当这些金属元素构成式[(½)aK 2 O-(½)bNa 2 O-cM 1 O-(½)dNb 2 O 5 -eM 2 O 2],a,b,c,d和 该式中的e满足以下关系:0
摘要:
There are provided a piezoelectric ceramic composition that includes a bismuth layer-structured compound, which contains Na, Bi, Co and Ln (lanthanoide), as a main component and a piezoelectric ceramic composition that includes a compound, which contains Na, Bi, Ti, Co and Ln (lanthanoide) and has a Na0.5Bi4.5Ti4O15 type crystal structure, as a main component, wherein the piezoelectric ceramic composition has an atomic ratio of 0
摘要:
There is provided a piezoelectric ceramic composition that contains Na, Bi, Ti and Co wherein the composition ratio of Na, Bi, Ti and Co in terms of oxides thereof is in the following composition range (1): aNa2O-bBi2O3-cTiO2-dCoO (1) where a, b, c and d are mole fractions; 0.03≦a≦0.042; 0.330≦b≦0.370; 0.580≦c≦0.620; 0
摘要:
There are provided a piezoelectric ceramic composition that includes a bismuth layer-structured compound, which contains Na, Bi, Co and Ln (lanthanoide), as a main component and a piezoelectric ceramic composition that includes a compound, which contains Na, Bi, Ti, Co and Ln (lanthanoide) and has a Na0.5Bi4.5Ti4O15 type crystal structure, as a main component, wherein the piezoelectric ceramic composition has an atomic ratio of 0
摘要:
Disclosed is a method for producing an electrode material for fuel cells, which electrode material has excellent electrochemical catalytic activity and uses a non-carbon conductive oxide carrier having high durability. Specifically disclosed is a method for producing an electrode material for fuel cells, which comprises the following steps. (1) A step wherein carriers mainly composed of tin oxide are dispersed in a solution containing a noble metal colloid, and the noble metal colloid is reduced so that the carriers are loaded with noble metal particles (2) A step wherein the carriers loaded with the noble metal particles are separated from the liquid and dried (3) A step wherein the dried carriers loaded with the noble metal particles are subjected to a heat treatment at a temperature of not less than 80° C. but not more than 250° C. in the presence of a reducing gas.
摘要:
A vehicle driving evaluation apparatus (1) is provided with: a behavior detecting device (101) for detecting a behavior of a vehicle a driver is driving; a driving analyzing device (103) for analyzing an aspect of driving of the driver on the basis of the behavior of the vehicle; a road analyzing device (106) for analyzing condition of a road on which the vehicle travels; and a travel situation evaluating device (107) for evaluating a travel situation of the vehicle on the basis of the aspect of the driving of the driver and the conditions of the road on which the vehicle travels.
摘要:
In a scenery imaging apparatus (100), an image capturing unit (101) captures a scenery image in an arbitrary direction. A dividing unit (102) divides an initial scenery image captured by the image capturing unit (101) in an arbitrary direction into plural cells. A calculating unit (103) calculates a distance to a portion of the initial scenery corresponding to each cell generated from the division by the dividing unit (102). A determining unit (104) determines an image capturing direction using the distances calculated by the calculating unit (103).
摘要:
A microwave heating apparatus operates in either a first mode or a second mode, that allow different amounts of electric power to be supplied to a load and a control circuit for driving and controlling the load. The voltage applied to a primary coil of a transformer is lower in the second mode than in the first mode. In another apparatus, no electric power is supplied to a control circuit for driving and controlling a heating member and other circuits when the apparatus is in a standby state. However, when the user operates an operation member for opening the door of a heating chamber, electric power is supplied.
摘要:
A chip for a magnetostatic wave device comprising; a base substrate consisting of a dielectric monocrystalline base plate and a ferrimagnetic monocrystalline film formed on the base plate; an excitation means for magnetostatic waves formed on the ferrimagnetic film when it is given a bias magnetic field and high frequency electric signals; and a reflection means to reflect the excited magnetostatic wave toward the center portion of the film before it reaches at end portions of the ferrimagnetic film.
摘要:
A signal recognizing device is mounted on a moving body, and connects to a camera. The signal recognizing device includes a storage unit, a signal display candidate detecting unit (SDCDU), a reference calculating unit (RCU) and a green lighting determination unit (GLDU). The SDCDU detects red lamp candidate areas from an image. The RCU calculates a moving average of pixel value per pixel existing in the green lamp candidate area, and stores the moving averages. For each pixel value of the green lamp candidate area, the RCU omits the pixel value from the samples for calculating the moving average if a difference between the pixel value and the moving average exceeds a threshold. Upon red lamp transition to an unlit state, it determines whether a green lamp is lit based on the image captured at the time of the unlit state of the red lamp and the moving averages.