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公开(公告)号：US4631633A
公开(公告)日：1986-12-23
申请号：US812158
申请日：1985-12-23
CPC分类号： H01G4/008 , H01G4/1254 , H01L28/55 , Y10T29/435
摘要： A thin film capacitor is formed of a thin crystalline electrically insulative or semiconductive substrate. With the insulative substrate a thin conductive metal layer is deposited on the substrate and a thin film of a crystalline strontium barium niobate deposited on the thin conductive metal layer so that its 2.77.ANG. spaced atomic planes are oriented in a non-perpendicular manner to the substrate and an additional thin conductive layer is deposited on the surface of the strontium barium niobate film. When a semiconductive substrate is employed the strontium barium niobate film is deposited directly on the substrate. These capacitors exhibit a low temperature coefficient of capacitance and a high capacitance density.
摘要翻译： 薄膜电容器由薄晶体电绝缘或半导体衬底形成。 利用绝缘衬底，在衬底上沉积薄的导电金属层，并且沉积在薄导电金属层上的结晶锶钡铌薄膜，使其间隔开的原子面2.77 ANGSTROM以非垂直方式定向到衬底 并且在锶钡铌酸盐膜的表面上沉积另外的薄导电层。 当使用半导体衬底时，锶钡铌酸盐膜直接沉积在衬底上。 这些电容器具有低的电容温度系数和高的电容密度。
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2.发明授权AC magnetic susceptometer with odd harmonic measurement for analyzing superconductive magnetic materials 失效交流磁力计，用于分析超导磁性材料的奇次谐波测量
公开(公告)号：US5283524A
公开(公告)日：1994-02-01
申请号：US795296
申请日：1991-11-19
CPC分类号： G01N27/72 , G01R33/1238 , Y10S505/726 , Y10S505/843
摘要： An improved AC susceptometer and methodology for its use which is particularly suitable for the characterization of the properties of superconducting materials. Added to the circuitry of a conventional AC susceptometer is frequency domain analytical equipment for measuring the induced magnetic response. The addition of frequency domain measuring equipment permits the determination of the harmonic components of the induced magnetic response. The measurement of the harmonic components of the response also provides novel methodology for studying the phenomena of flux penetration, flux pinning and movement and permits the measurement of parameters such as lower critical field, critical temperatures, and the irreversibility line.
摘要翻译： 改进的交流阻抗计及其使用的方法，其特别适用于表征超导材料的性质。 添加到常规AC智能电表的电路中，是用于测量感应磁响应的频域分析设备。 频域测量设备的添加允许确定感应磁响应的谐波分量。 响应的谐波分量的测量还提供了用于研究磁通穿透，磁通钉扎和运动现象的新方法，并允许测量诸如较低临界场，临界温度和不可逆线等参数。
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公开(公告)号：US4671293A
公开(公告)日：1987-06-09
申请号：US787409
申请日：1985-10-15
申请人： Avner A. Shaulov
发明人： Avner A. Shaulov
CPC分类号： B06B1/0629
摘要： An improved biplane phased array transducer for real time medical imaging in at least two sector planes having a composite piezoelectric plate with an array of transducer elements disposed on each major surface of said plate, the array on one side being at an angle to the array on the other side, said transducer elements being defined by dicing each major surface of said composite plate through the conductive electrode surface and into a portion of the composite piezoelectric material, and electrical connections provided whereby each array may be grounded alternately so that real time sector imaging in two planes is obtained.
摘要翻译： 一种改进的双平面相控阵转换器，用于在至少两个扇形平面中进行实时医学成像，其具有复合压电板，该复合压电板具有设置在所述板的每个主表面上的换能器阵列阵列，所述阵列在一侧与阵列成一定角度 另一方面，所述换能器元件通过通过导电电极表面切割所述复合板的每个主表面并进入复合压电材料的一部分来限定，并且提供电连接，由此每个阵列可以交替地接地，使得实时扇形成像 在两个飞机上获得。
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4.发明授权
公开(公告)号：US5280240A
公开(公告)日：1994-01-18
申请号：US795295
申请日：1991-11-19
CPC分类号： G01R33/1238 , G01N27/72 , Y10S505/726 , Y10S505/843
摘要： An improved AC susceptometer and methodology for its use which is particularly suitable for the characterization of the properties of superconducting materials. Added to the circuitry of a conventional AC susceptometer is frequency domain analytical equipment for measuring the induced magnetic response. The addition of frequency domain measuring equipment permits the determination of the harmonic components of the induced magnetic response. The measurement of the harmonic components of the response also provides novel methodology for studying the phenomena of flux penetration, flux pinning and movement and permits the measurement of parameters such as lower critical field, critical temperatures, and the irreversibility line.
摘要翻译： 改进的交流阻抗计及其使用的方法，其特别适用于表征超导材料的性质。 添加到常规交流电抗器的电路中是用于测量诱导磁响应的频域分析设备。 频域测量设备的添加允许确定感应磁响应的谐波分量。 响应的谐波分量的测量还提供了新颖的方法，用于研究磁通穿透，磁通钉扎和运动的现象，并允许测量诸如较低临界场，临界温度和不可逆线等参数。
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5.发明授权Apparatus and method for mapping inhomogeneities on the surface of bulk and thin film superconductors 失效用于映射体和薄膜超导体表面不均匀性的装置和方法
公开(公告)号：US5030912A
公开(公告)日：1991-07-09
申请号：US455719
申请日：1989-12-21
IPC分类号： G01R33/12
CPC分类号： G01R33/1238 , Y10S505/726 , Y10S505/843
摘要： Apparatus and methodology for mapping the superconductive properties of a sample of superconducting material. The material is cooled so that it is a mixed state and an alternating magnetic field is induced in a portion of the sample to be tested. The harmonic component of the induced alternating magnetic response is measured at a location proximate to the point of induction. As the inducing and measuring devices are displaced relative to the sample the measured amplitude of the harmonic component is stored in suitable storage means as a function of location in the sample. Thus, a map of the superconducting properties of the sample may be generated.
摘要翻译： 用于绘制超导材料样品的超导特性的装置和方法。 将材料冷却，使其为混合状态，并且在待测样品的一部分中诱发交变磁场。 感应交变磁响应的谐波分量在接近感应点的位置测量。 由于感应和测量装置相对于样本移动，谐波分量的测量幅度作为样品中位置的函数存储在合适的存储装置中。 因此，可以产生样品的超导特性的图。
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6.发明授权Apparatus and methodology for the non-contact testing of materials for superconductivity by detecting odd harmonics above a threshold 失效通过检测高于阈值的奇次谐波，对超导材料进行非接触式测试的装置和方法
公开(公告)号：US5004726A
公开(公告)日：1991-04-02
申请号：US380162
申请日：1989-07-14
CPC分类号： G01R33/1238 , Y10S505/726 , Y10S505/727 , Y10S505/786 , Y10S505/843
摘要： Apparatus and methodology for the rapid and inexpensive characterization of superconducting materials. The method and apparatus induces an alternating magnetic field in the sample to be tested. If the material is a superconductor odd harmonics are generated in the alternating magnetic response of the material near the transition temperature. The superconducting transitions are manifested by a peak or peaks in the odd harmonic components of the alternating magnetic response as a function of temperature. The peaks of the harmonic components are detected to indicate the presence and number of superconducting transitions.
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