Ultrasonic welding apparatus comprises a sensor ultrasonic welding apparatus and an ultrasonic transducer shaped piezoelectric material between the sensor output of at least two different welding parameters to measure, in order to select the output signal of the welding Parameters have a better sign.....
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The present invention relates to a positioning system and method for hierarchical, using the information server and the master device connected thereto, from the device, the information server information including location information database to track and alarm modules, the master device includes .....
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The invention provides a wireless ultrasonic scanning system which comprises an ultrasonic sensor, a motor, an ultrasonic transceiver, a high-speed data sampling module, a machine controller and a total control module; wherein the ultrasonic sensor arranged on the motor can move according to the con.....
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The present invention relates to a strain gauge and methods of making such wherein the gauge contains a doped polymeric fluid suitable for measuring elongations of more than 10%.
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本发明涉及对数据进行编码及解码的方法和系统。编码方法包括：基于奇偶校验矩阵(40)从k个数据比特中创建m个奇偶比特，奇偶校验矩阵(40)包括数据部分(41)和奇偶部分(42)。所述奇偶部分由分块子矩阵所组成，且每一分块子矩阵可为以下任意一种：零矩阵、单位矩阵和置换矩阵；其中定义上对角线为所述奇偶部分中从第二列的第一分块子矩阵延伸至最后一列的倒数第二个分块子矩阵的连线，且所述上对角线上的每一分块子矩阵为单位矩阵或置换矩阵，而所述上对角线上方的分块子矩阵(44)则为零矩阵；所述奇偶部分从第二列至倒数第三列中的每一列在所述上对角线(45)下方都包含有一个或多个单位矩阵或置换矩阵。
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