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    • 4. 发明授权
    • Amorphous metallic alloy electrical heater systems
    • 无定形金属合金电加热器系统
    • US5641421A
    • 1997-06-24
    • US711973
    • 1996-09-10
    • Vladimir ManovEliezer AdarMark GellerEvgeni SorkineIosef Margolin
    • Vladimir ManovEliezer AdarMark GellerEvgeni SorkineIosef Margolin
    • F24H3/00F24H3/04H05B3/12H05B3/42H05B3/82H05B3/00H05B1/02
    • H05B3/82F24H3/002F24H3/0417H05B3/12H05B3/42Y10T29/49083
    • An electrical heating system uses heating elements made of ribbons of amorphous metallic alloys. The heating elements have a large area using long and wide ribbons, to achieve good heat transfer to the surroundings, that is low thermal resistance. The area of the heating elements and thus the thermal resistance is determined according to the desired thermal power, under the constraint of a low operating temperature, that is a temperature well below the embrittlement temperature of the amorphous alloy used in the heating elements. The operating temperature is preferably kept low enough so as not to generate benzopyrene or other unhealthy or ecologically unfavorable fumes or gases. The thin ribbons with low thermal resistance also have a fast heating constant, that is the heater reaches its steady state temperature in a short time. The electrical heating system uses low cost insulation and support materials, that is materials intended for use at low temperatures only. Further cost reduction is achieved by making the heating elements of lower cost alloys, that is alloys capable of withstanding oxidation only at low temperatures. The heating elements undergo treatment using the Manov process of overheating the melted alloy to a precise temperature prior to rapid quenching, to achieve more reliable ribbons with more reproducible characteristics.
    • 电加热系统使用由非晶金属合金带制成的加热元件。 加热元件具有使用长而宽带的大面积,以实现对周围环境的良好热传递,即低热阻。 在低工作温度的限制下,加热元件的面积以及因此的热阻根据期望的热功率来确定,该温度远低于在加热元件中使用的非晶态合金的脆化温度。 操作温度优选保持足够低以便不产生苯并芘或其他不健康或生态不利的烟雾或气体。 具有低热阻的薄带也具有快速加热常数,即加热器在短时间内达到其稳态温度。 电加热系统使用低成本的绝缘和支撑材料,即仅在低温下使用的材料。 通过制造低成本合金的加热元件即仅在低温下能耐受氧化的合金来实现进一步的成本降低。 加热元件使用Manov过程进行处理,使熔融合金过热到快速淬火之前的精确温度,以获得具有更多可重现特性的更可靠的带。
    • 9. 发明申请
    • STRAIN SENSOR
    • 应变传感器
    • US20110023620A1
    • 2011-02-03
    • US12796322
    • 2010-06-08
    • Brian L. ClothierEvgeni Sorkine
    • Brian L. ClothierEvgeni Sorkine
    • G01B7/16
    • G01B7/24
    • Improved microwire strain sensor elements (20, 40, 52, 62) and corresponding methods are provided, which permit accurate, wireless strain monitoring of a variety of structures, including composite structures, through use of a remote detector (28). The sensor elements (20, 40, 52, 62) have amorphous or nanocrystalline metallic alloy microwire cores (22, 48), which exhibit substantially reduced remagnetization responses when the sensor elements (20, 40, 52, 62) are coupled with a structure to be strain-monitored, and the structures are in an unstrained condition. When the monitored structure experiences a strain above a pre-selected threshold value, the microwire cores (22, 48) exhibit substantially different remagnetization responses as an indication that the monitored structure has experienced a strain above a strain threshold or over a range of strain. In use, the strain sensor elements (20, 40, 52, 62) are coupled with a structure to be monitored by application of the sensor elements (20, 40, 52, 62) to a surface of the structure, or by imbedding the sensor elements (20, 40, 52, 62) within the structure, and the coupled sensor elements are periodically interrogated by the detector (28). Preferably, the microwire cores (22, 48) are placed in compression in order to suppress the inherent remagnetization responses thereof by means of a surrounding body (26) or surrounding layers (44, 46) formed of synthetic resin material which shrinks upon curing. When the sensor elements (20, 40, 52, 62) are strained as a result of a strain experienced by the monitored structure, the remagnetization responses of the microwire cores (22, 48) are substantially increased.
    • 提供了改进的微线应变传感器元件(20,40,52,62)和相应的方法,其允许通过使用远程检测器(28)对各种结构(包括复合结构)进行精确的无线应变监测。 传感器元件(20,40,52,62)具有无定形或纳米晶金属合金微线芯(22,48),当传感器元件(20,40,52,62)与结构 应变监测,结构处于无限制状态。 当被监测的结构经受超过预选阈值的应变时,微线芯(22,48)表现出显着不同的再磁化响应,作为被监测结构已经经受应变阈值以上或应变范围以上的应变的指示。 在使用中,应变传感器元件(20,40,52,62)通过将传感器元件(20,40,52,62)施加到结构的表面上而与要监控的结构相结合,或者通过将 结构内的传感器元件(20,40,52,62)和耦合的传感器元件由检测器(28)周期性询问。 优选地,微线芯(22,48)被置于压缩状态,以便通过由固化时收缩的合成树脂材料形成的环绕体(26)或周围层(44,46)来抑制其固有的再磁化响应。 当传感器元件(20,40,52,62)由于所监视的结构所经受的应变而变形时,微线芯(22,48)的再磁化响应显着增加。