Physical Design of an Automatic Measuring Instrument for the Flatness Error of the Rail Wagon

The automatic measuring instrument for the flatness error of the rail wagon is designed with carbon fiber and aluminium alloy, which makes the instrument handy with good stiffness. After the design for the main structure and arranging the position of sensing element, finite element analysis is used to guarantee that deformation of structure itself will not affect the measurement accuracy. The design of the automatic measuring instrument for the flatness error of the Rail wagon takes the place of tradional feeler gauge measurement, raised the work efficiency and improves the measurement accuracy to 0.1mm.

Software Development of an Automatic Measuring Instrument for the Flatness Error of the Rail Wagon

Matlab and Microsoft Visual C++ were used to program the automatic measuring instrument for the flatness error of the Rail wagon. Microsoft Visual C++ is used to program the struct body, which takes full advantage of the high programming efficiency, high execution speed and beautiful imple interface. In the meantime, powerful computational function and image fitting of Matlab is added to the program. Through the method of Dynamic Link Library, these two softwares are linked and the figure created by Matlab can be insetted in the main interface created by Microsoft Visual C++, which keeps the united and elegant appearance.

Automatic Measuring Instrument of Dam Horizontal Deformation Based on Laser Scan Concept

In this paper, a design of an automatic measuring instrument of dam horizontal deformation based on laser scan concept is introduced. According to the demand of the dam deformation monitoring, the design chooses STM32F103CBT6 as the hardware control platform, and the laser scan concept is introduced. The measuring principle, main hardware design scheme and software flow chart are introduced in this paper.

Design and Research of Carbon Dioxide Automatic Measuring Instrument

Carbon dioxide is the very important material of plants when they are making food by means of photosynthesis. The concentration of carbon dioxide restricts photosynthesis and respiration in a dose-dependent manner. Therefore, keeping stability concentration of carbon dioxide is quite important for plant to grow rapidly. This paper mainly introduced the system composition and working principle of carbon dioxide automatic measuring instrument, the system taking Freescale MCU as control core. The instrument can collect signal, display data and reset by connecting with the PC. The experiment result states clearly this carbon dioxide automatic measuring instrument has practical value and application significance.

Design of MK1432/H CNC Precision Cylindrical Grinding Machine

MK1432/H CNC precision cylindrical grinding machine is suitable for precision grinding IT6 to IT5 cylindrical or conical revolving workpiece, the table of the rail bed for the paste with plastic rail, the first holder of the rotating dial tone from the motor frequency speed, with Germany's Siemens 810D CNC two-axis system, built-in PLC, liquid crystal display. Servo motor is 1FK6 series; configure automatic measuring instrument line detection, automatic grinding work to achieve closed-loop cycle, ensuring high machining dimensional accuracy. Machine bed using a large round hole, fin-shaped reinforcement plates, Bench points up and down the table, you can grinding conical, bed and table in the guide rail for the laminating, the friction coefficient is small, table driven by a servo motor directly to the Deputy move the ball bar, smooth and reliable movement. Mainly used in automobile, motorcycle parts factory and other machinery manufacturing industry, for the grinding disc type, short axis, and taper shank type etc. parts.

Design of Automatic Measuring Instrument of Irregular Objects’ Centroid

By utilizing the parallel axis theorem of moment of inertia and the graphic geometric transformation theory as well as the method of rotating and moving axis, the calculation formula of irregular objects’ centroid was derived. And on the basis of a single axis air bearing table which was used for measuring the moment of inertia of objects around a fixed axis, the complete instrument of measuring the irregular objects’ centroid was designed. The objects’ centroid and moment of inertia could be measured synchronously. Through the analysis of the influence on measuring accuracy caused by measuring factors’ errors, the method of improving the measuring accuracy of instrument was derived. The measuring instrument meets the requirement of measuring the irregular objects’ centroid precisely.