Manual inertial navigation test turntable with high sensitivity

Abstract

The invention discloses a manual inertial navigation test turntable with high sensitivity. The manual inertial navigation test turntable comprises a U-shaped base, the upper end of the inner side of the U-shaped base is provided with a table top, the two ends of the table top are connected with a left main shaft and a right main shaft respectively, the left main shaft is sleeved with a base bearing assembly and an angle measurement assembly which are arranged in the left end of the U-shaped base, the right main shaft is sleeved with a right bearing assembly and a worm wheel which are arrangedin the right end of the U-shaped base, and the lower end of the worm wheel is connected with a worm in the adjusting assembly in a meshed mode. The manual inertial navigation test turntable reasonablyand effectively solves the problems that an existing inertial navigation test turntable shakes after being positioned, is not high in self-positioning sensitivity and cannot meet the test and calibration requirements of a high-precision inertial measurement unit, a gyroscope and an accelerometer, and has the characteristics of compact structure, small occupied space and high sensitivity.

Description

technical field [0001] The invention relates to a high-sensitivity manual inertial navigation test turntable. Background technique [0002] The turntable is very common in the field of inertial testing. It is an important device for calibrating inertial devices such as inertial groups, gyroscopes and accelerometers. Traditional inertial navigation test turntables are generally driven by DC torque motors, encoders or circular gratings as angle sensors, and controlled by PID algorithms. , so when the turntable moves to the position, because the PID algorithm is closed-loop control, there will be a slight jitter on the turntable after reaching the position, which needs to be avoided for some inertial component tests; considering this shortcoming, the existing inertial navigation test turntable Some are also manually driven, but they have some disadvantages such as low sensitivity and inconvenient adjustment, which seriously restrict the development of inertial devices. Conten...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a high-sensitivity manual inertial navigation test turntable, which solves the problem of vibration after the positioning of the existing inertial navigation test turntable, the low sensitivity of its own positioning, and the inability to meet high-precision inertial groups, gyroscopes and accelerations. Questions about meter testing and calibration needs

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