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The cableless pipeline inspection robot is a hot topic in current domestic and international oil and gas pipeline in the research of special robot. The functions of robot body for communication with the outside world, energy supply, mobile running gear, and flaw detection module are several key technologies in the pipeline robot in application. This paper presents the measures for those key problems: Fiber-optic conveys video images and data in the pipeline and robot bi-directional cableless communication with the host computer monitoring equipment is completed outside the pipeline; In the aspect of energy supply the transformer secondary coil is generated by Charging stations set up outside the pipeline and lithium batteries is recharged to complete function of robot self-propelled ; Mobile running gear is achieved through the use of the arm of the parallelogram unit peristalsis to walk forward;The flaw detection technology adopts both video acquisition and ultrasonic phased array imaging with dynamic focusing and deflection characteristics to improve flaw detection efficiency and detection identification.

Sufficient sensor information is needed in the control of intelligent lower limb prosthesis. Sensor system includes MEMS Accelerometer and MEMS Gyroscope. The sensor system is installed in prosthetic socket. Walking information is obtained using this system. Hip joint and knee joint motion is measured by Vicon MX system. the angle, velocity and acceleration of Hip joint and knee joint is analyzed. The signal of sensor system is collected by Quarc system. Using the wavelet analysis method, characteristic values is extracted from the measurement signal after errors separation process. The results of experiment indicate that the sensor system has advantages of small size, sensitive response,quick examine,convinence to take with and use and so on. The system is very suitable for the information acquisition.

a Design Concept of Piecewise Variable Wall Thickness of Radome Is Proposed to Simulate the Radome which Has Variable Wall. the Paper Calculates the Far Field of a Medium-Size Radome in the Case of Piecewise Variable Thickness by Three Methods as Follows: Method of Moment (MOM), Multilevel Fast Multipole Method (MLFMM) and Physical Optics& the Method of Moments (PO/MOM) Respectively. after Comparing the Results, we Find that the PO/MOM Method Have the Superiority in Simulation of Radome’s Electromagnetic because it’s More Accuracy and Less Memory Consuming than the other Two Methods. Also it Proves the Feasibility of the Design Concept of Piecewise Variable Thickness for Radome.