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    • 7. 发明授权
    • Electrodynamic transducer head
    • 电动换能器头
    • US5050703A
    • 1991-09-24
    • US417329
    • 1989-10-05
    • Alfred GraffFriedhelm SchlawneMichael WachterWolfgang Bottger
    • Alfred GraffFriedhelm SchlawneMichael WachterWolfgang Bottger
    • G01N29/24
    • G01N29/2412G01N2291/0427
    • The invention furnishes an electrodynamic transducer head for a non-destructive testing of workpieces with electrically conductive surfaces by way of ultrasound. A magnet system is employed for generating of a static or a low-frequency magnet field, and at least one transducer coil is disposed at the front face of the magnet system disposed toward the workpiece. The transducer coil is furnished on the side toward the workpiece with a wear-resistant layer, and the transducer coil exhibits between itself and this front face of the magnet system an intermediate part with an insulating layer, which is solidly connected with the front face and with the coil adjoining at the insulating layer. The invention discloses production of a transducer coil, in a way which is simple and economical and results in a transducer head which can be universally employed, and where the eddy current formations, resulting in interfering signals, and the mechanical vibrations, both in the transducer coil as well as in the magnet system, are substantially suppressed or, respectively, damped. The intermediate part (10) comprises at least two layers (11, 12), where one of the layers (12) is electrically conductive and which layer ( 12) is made of a material thickness which is larger than the skin depth for a given high-frequency field.
    • 本发明提供一种用于通过超声波对具有导电表面的工件的非破坏性测试的电动变换器头。 使用磁体系统来产生静态或低频磁场,并且至少一个换能器线圈设置在朝向工件设置的磁体系统的前表面处。 换能器线圈的侧面朝向工件设置有耐磨层,并且换能器线圈在其本身与磁体系统的该前表面之间呈现具有绝缘层的中间部分,该中间部分与前表面牢固地连接, 线圈与绝缘层相邻。 本发明公开了一种换能器线圈的生产方法,其方法简单经济,并且可以在传感器中产生传感器头,并且在传感器中产生干扰信号和机械振动 线圈以及磁体系统基本上被抑制或分别阻尼。 中间部分(10)包括至少两个层(11,12),其中一个层(12)是导电的,并且哪个层(12)由对于给定的层(12)的材料厚度大于皮肤深度 高频场。
    • 10. 发明授权
    • Method for tripping a restraint device in a vehicle
    • 一种用于在车辆中跳闸约束装置的方法
    • US6081044A
    • 2000-06-27
    • US149815
    • 1998-09-08
    • Anton AnthoferMichael WachterMarten Swart
    • Anton AnthoferMichael WachterMarten Swart
    • B60R21/16B60R21/01B60K28/12
    • B60R21/01B60R2021/01075
    • In a method for tripping a restraint device in a vehicle, coded information signals with status and diagnosis messages are transmitted in both directions between an evaluation device and an ignition device. To avoid the situation where a tripping signal for the restraint device may be delayed in its transmission to the ignition device because the data throughput in the transmission medium is high, the transmission of the information signals is interrupted. Accordingly, the transmission of the information signals in the forward and return directions is controlled by the evaluation device. As a function of a collision signal furnished by a sensor device, the transmission of the information signals is ended by the evaluation device, so that the transmission medium between the evaluation device and the ignition device remains free for a possibly ensuing tripping signal.
    • 在用于使车辆中的约束装置跳闸的方法中,具有状态和诊断消息的编码信息信号在评估装置和点火装置之间沿两个方向传送。 为了避免由于传输介质中的数据吞吐量高而使得约束装置的跳闸信号可能被延迟到点火装置的传输的情况,信息信号的传输被中断。 因此,信息信号在正向和返回方向的传输由评估装置控制。 作为由传感器装置提供的碰撞信号的功能,信息信号的传输由评估装置结束,使得评估装置和点火装置之间的传输介质对于可能的随后的跳闸信号保持不变。