Object rotating angle measurement system and measurement method

Abstract

The invention provides an object rotating angle measurement system and an object rotating angle measurement method. The system comprises an angle datum instrument, a rotating angle measurement instrument and an angle information processing device, wherein the angle datum instrument comprises an adjustable base and parallel light tubes arranged on the adjustable base, and the parallel light tubes can emit bright cross wires in a parallel light form; the rotating angle measurement instrument comprises an adjustable measurement platform and a visible light digital camera; and the angle information processing device comprises a data acquisition module, an image processing module and an image display module. The measurement method comprises the following steps of: installing the visible light digital camera on a measured object, putting the measured object on the adjustable measurement platform, picking up an initial angle image by the visible light digital camera, and receiving and processing the initial angle image by an angle information processing system to obtain a cross wire inclination angle alpha in an initial state; likewise, obtaining a rotated cross wire inclination angle beta; and calculating the difference of the previous and later inclination angles by the angle information processing system, thus obtaining the rotating angle value of the measured object.

Description

technical field [0001] The invention relates to a measurement technology of an object rotation angle, in particular to an object rotation angle measurement system and a measurement method. Background technique [0002] At present, encoders, resolvers, and inductive synchros are generally used to measure the rotation angle. In the field of engineering measurement, rotary encoders are generally used to measure the rotation angle. When working, just connect the rotary encoder to the measured object through screws. This measurement method has the characteristics of stability, reliability, high precision, and timely feedback. However, when the object to be measured has a special structure and cannot provide a reference for installation and positioning, it will not be possible to use a rotary encoder for measurement. And because the rotary encoder has a relatively high integration level, it is a precision instrument; the requirements for the controller receiving the signal are al...

AI Technical Summary

Problems solved by technology

However, when the object to be measured has a special structure and cannot provide a reference for installation and positioning, it will not be possible to use a rotary encoder for measurement

And because the rotary encoder has a relatively high integration level, it is a precision instrument; the requirements for the controller receiving the signal are also relatively high, which makes the installation and maintenance of the rotary encoder difficult, and requires the participation of professional and technical personnel to complete it, which increases its use cost.

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