The present invention provides a measurement of the length of the pile of soil nailing and quality, the method comprising the steps of: sensing a plurality of optical fiber sensors; the sensing fiber embedded in the measured axial pile or soil nails, where the sensing arrangement of the optical fibe.....
[Detail]
一种具温度补偿的水泥结构应变测量传感器，该传感器具有布拉格光纤光栅，埋入混凝土中后，该传感器能同时测出混凝土的机械负载和温度影响，不须任何外覆隔层故具有小的尺寸因而能贴近混凝土的表面而提高测量精度。本传感器包括：水泥或环氧树脂制的有盲孔的外壳；在外壳前端用不锈钢或聚合物材料制成的前套管；在外壳后端用不锈钢或聚合物材料制成的和前套管同轴螺接的后套管；在两套管中的在两套管包覆部位制有布拉格光栅的光纤；在外壳进口用以连接套管中的光纤和外部光纤的光纤接头。装配时前套管和其内部的光纤用环氧树脂粘固成一体。外壳可在其内部各件装配妥当后最后灌制，以便和前套管固定连接而不会产生相对活动。
[Detail]
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.....
[Detail]
The utility model relates to a thermal comfort dress system, which comprises a dress. The dress comprises multiple cloth layers having liquid water one-way transmission characteristic; an innermost cloth layer of the multiple cloth layers is a cloth layer having more than class two liquid water one-.....
[Detail]
本发明涉及一种磨削辅助电化学放电加工工具及加工方法，该方法尤其适用于金属基复合材料的加工。所述磨削辅助电化学放电加工工具包括ECDM电极以及设于所述ECDM电极上的磨料层，所述磨料层主要用于移除加工过程中火花坑周围形成的重铸材料。实施本发明在对难以加工的材料进行加工时能够增加材料的去除率，获得更好的表面质量，并且大大地延长了加工工具的寿命。
[Detail]
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