Angular displacement coding sensor

Abstract

The invention relates to the field of electronic components, and more particularly to an angular displacement coding sensor, which comprises a base and a sealing cover, wherein the space formed by thebase and the sealing cover is internally provided with an annular rotating brush supporting plate and an annular fixing piece; the side, close to the rotating brush supporting plate, of the fixing piece is provided with an annular coder track with an opening; a joint at one end of the opening of the coder track is connected with a wire group and is slidably contacted with a first brush; the firstbrush is connected with a first brush holder fixed on one side of the rotating brush supporting plate; the rotating brush supporting plate is slidably contacted with a second brush; the fixing plateis provided with a second brush holder supporting the second brush; the coder track is uniformly provided with a plurality of coder scales; the first brush is provided with a sensing element corresponding to the coder scale; and the sensing element reads the coder scale to convert the reading to a coder output signal. The effective electric stroke range of the angular displacement sensor is large,a full circumference of 360 DEG can be achieved, the linear precision is high, and stable pulse coding signals can be outputted.

Description

technical field [0001] The invention relates to the field of electronic components, in particular to an angular displacement encoder sensor. Background technique [0002] The angular displacement sensor is a high-precision displacement sensor whose voltage output has a functional conformity relationship with the rotation angle or linear displacement. It is often used in aviation, aerospace, weapon systems, and industrial servo controls such as aerospace devices, missiles, and aircraft. Its working principle is the principle of resistive voltage division. When working, apply positive and negative working voltages, take 0V point as the 0° base point, and move forward and reverse within the effective electric stroke range. The displacement is proportional to the output voltage, and the displacement is realized. precise positioning. In practical applications, the effective measurement range of the general angular displacement sensor is 0° to 300°, and when the resistance change...

AI Technical Summary

Problems solved by technology

Due to external magnetic field interference, the noise of the received signal is relatively large. If it encounters angle measurement of strong magnetic materials, it may fail; in addition, due to the complex structure of the magnetic encoder, the manufacturing cost is high, the circuit structure is complicated, and it cannot be widely used.

At the same time, the existing technology rarely involves the use of encoders to process and verify the measurement results of displacement sensors. It is very necessary to design a 360° full stroke range in the equipment, with high linear accuracy and high reliability of the encoding function. Angular displacement sensor

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