A sleeve-type generator for simultaneous measurement of rotational angular velocity and angular acceleration

Abstract

The invention provides a shaft sleeve generator capable of simultaneously measuring a rotating angular speed and an angular acceleration. The shaft sleeve generator comprises end covers, bearings, a motor case, a magnetic isolating pillowcase, stator cores, permanent magnet steel, output windings, hall elements, rotor windings and a ferromagnetic shaft sleeve, wherein two ends of the ferromagnetic shaft sleeve pass through the bearings of the end covers respectively and then are fixed to the motor case through the end covers; the rotor windings are cylindrical whole windings, are concentrically fixed at the outer side of the ferromagnetic shaft sleeve and are in short circuit connection; the magnetic isolating pillowcase is concentrically fixed at the inner side of the motor case; the stator cores are in an annular sector separate body structure, and are fixed at the inner side of the magnetic isolating pillowcase; clamping grooves exist between separate bodies; partial separate bodies are provided with winding grooves; the permanent magnet steel and the hall elements are fixed into the clamping grooves between the separate bodies of the stator cores; and the output windings are embedded into the winding grooves of the separate bodies of the stator cores. The shaft sleeve generator capable of simultaneously measuring the rotating angular speed and the angular acceleration is convenient to install, simple in structure, low in cost, free of a reversing device, small in linear error and high in sensitivity, and can sleeve the outer side of the rotating shaft of the rotating device when used.

Description

technical field [0001] The invention relates to a generator for simultaneously measuring rotational angular velocity and angular acceleration, and more particularly relates to a shaft sleeve type generator for simultaneously measuring instantaneous rotational angular velocity and angular acceleration. Background technique [0002] Rotational angular velocity and angular acceleration are two very important dynamic angular parameters. Through the measurement of angular velocity and angular acceleration, the response of the rotating system shaft to various excitations can be analyzed. Therefore, the measurement of rotational angular velocity and angular acceleration has been widely used in many fields such as automobile, military, aerospace, industry, and electronics. [0003] At present, the commonly used generators for measuring instantaneous angular velocity are mainly divided into two categories: DC tachometer generator and AC asynchronous tachometer generator. When the DC ...

AI Technical Summary

Problems solved by technology

For the direct measurement method, the structural design of most detection devices is more complicated, and the accuracy is not high due to factors such as frequency; the indirect measurement method is more troublesome to process the signal, especially the problem of delay characteristics and noise amplification is not easy to solve

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