Device and method for measuring gravity center position of infrared guidance missile guide head

Abstract

The invention discloses a device and method for measuring the gravity center position of an infrared guidance missile guide head. A connecting flange and a horizontal rod are fixedly connected with a rotating shaft into a whole respectively; the guide head is fixed on the connecting flange; the two ends of the rotating shaft are fixed by using a bearing and a bearing seat; the bearing seat is fixed on a pedestal; a water level gauge is fixed on the top of the rotating shaft; the horizontal rod is provided with a number display meter; a force sensor is hinged at the right end of the horizontalrod; a tension ring of the force sensor is fixed at one end of a fine steel wire; the other end of the fine steel wire is fixed with a screw rod by bypassing a fixed pulley fixed on a base; and a nutseat matched with the screw rod is fixed on the base. The device has a simple structure, low cost and high measuring accuracy, and can be applied to spatial tri-axial measurement.

Description

technical field [0001] The invention relates to a measuring device and a measuring method for the position of the center of gravity of an object, in particular to a measuring device and a measuring method for the position of the center of gravity of the seeker head of an infrared guided missile. Background technique [0002] The center of gravity is the center of gravity on an object. In aerospace, navigation, electric power, machinery, vehicles and other fields, the position of the center of gravity is a parameter that needs to be accurately determined. How to accurately measure the position of the center of gravity of an object is particularly important. [0003] There is a method of measuring the center of gravity of an object by weighing method, and the object to be measured is placed on a load-bearing platform supported by three or four load cells. According to the principle of moment balance, it is determined by measuring the difference of the force on the sensor. The ...

AI Technical Summary

Problems solved by technology

The device that uses the weighing method to measure the center of gravity of an object must improve the accuracy of each load cell if it wants to obtain a relatively high measurement accuracy, which undoubtedly greatly increases the cost of use, and the structure of the entire device is complex and requires high assembly accuracy.

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