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公开(公告)号:US4398258A
公开(公告)日:1983-08-09
申请号:US218832
申请日:1980-12-22
CPC分类号: G06F3/16 , G07C5/0816 , G09B9/05
摘要: A malfunction procedure indicating system which monitors continuously the condition of a plurality of inspection items associated with the operation of a vehicle, whereby when the existence of a malfunction in at least one of the plurality of inspection items is detected, a first procedure corresponding to the malfunction is indicated by both verbal representation and visual display during the operation of the vehicle and a second procedure following the first procedure is also indicated by both verbal representation and visual display.
摘要翻译: 一种故障处理指示系统,其连续地监视与车辆的操作相关联的多个检查项目的状况,由此当检测到所述多个检查项目中的至少一个检查项目中的故障的存在时,对应于 在车辆操作期间通过语言表示和视觉显示来指示故障,并且在第一过程之后的第二过程也通过语言表示和视觉显示来指示。
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公开(公告)号:US4761242A
公开(公告)日:1988-08-02
申请号:US867953
申请日:1986-05-29
申请人: Kazunori Suzuki , Masataka Naitoh
发明人: Kazunori Suzuki , Masataka Naitoh
IPC分类号: C04B35/46 , C04B35/475 , G01L1/16 , H01B3/12 , H01L41/187
CPC分类号: H01L41/187 , C04B35/475
摘要: A piezoelectric ceramic composition is disclosed wherein a sintered body having a bismuth layer structure represented by a molecular formula of PbBi.sub.4 Ti.sub.4 O.sub.15 contains 10 to 55 mol % of an oxide of Ca and Ti, namely CaTiO.sub.3, or 1 to 15 mol % of an oxide of Sr and Ti, namely, SrTiO.sub.3. The bismuth layer structure of PbBi.sub.4 Ti.sub.4 O.sub.15 has a positive dielectric-constant-temperature characteristic, and CaTiO.sub.3 or SrTiO.sub.3 is obtained by sintering as an added substance exhibiting a negative dielectric-constant-temperature characteristic. Since the added substance is added to the piezoelectric ceramic composition so that the temperature changes in both dielectric constants are mutually cancelled out, thereby maintaining the piezoelectric constants at a substantially fixed level.
摘要翻译: 公开了一种压电陶瓷组合物,其中具有由PbBi 4 Ti 4 O 15分子式表示的铋层结构的烧结体含有10至55mol%的Ca和Ti的氧化物即CaTiO 3或1至15mol%的Sr的氧化物 和Ti,即SrTiO3。 PbBi4Ti4O15的铋层结构具有正的介电常数温度特性,通过烧结作为显示出负介电常数温度特性的附加物质获得CaTiO 3或SrTiO 3。 由于将添加的物质添加到压电陶瓷组合物中,使得两个介电常数中的温度变化相互抵消,从而将压电常数保持在基本固定的水平。
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