Hall encoder

Abstract

The invention discloses a Hall encoder, which comprises a shell, a rotation shaft, a multi-stage magnetizing magnet, a signal output line, a bearing group and a circuit board, wherein the rotation shaft is connected with the bearing group in a penetrating mode; the rotation shaft is fixedly connected with the multi-stage magnetizing magnet; the circuit board is provided with a dual-channel Hall element; the pin of the dual-channel Hall element extends to the periphery of the multi-stage magnetizing magnet; the signal output line is fixed on a cover plate of the shell; and the signal output line is connected with the circuit board. The Hall encoder of the invention has the advantages that the structure is simple; processing and production are facilitated; mass production is particularly facilitated; the mounting is quick; the application is wide; long-term and stable work in an environment with a temperature of -40 DEG C to 150 DEG C and a vibration magnitude of 10 g can be realized; the working voltage range is wide; the speed measurement upper limit can reach 2000 rpm maximally; many pulses can be outputted in the case of rotation for one cycle; the resolution is high; and the Hall encoder outputs two paths of signals for detecting the rotation speed and the rotation direction respectively.

Description

technical field [0001] The invention relates to a Hall encoder. Background technique [0002] Hall encoders are widely used in automatic measurement and control systems because of their good linearity, no sparks, no self-excited oscillation, and zero-speed measurement. However, with the continuous improvement of industrial automation, the automatic measurement and control system has put forward higher and higher requirements for monitoring the rotation status (including parameters such as rotation speed and rotation direction) of rotating equipment such as engines, motors, and machine tool spindles. The application of many Hall encoders that do not have the function of recognizing the direction of rotation is greatly limited. Although some products have this function, their structure is generally complicated, assembly is difficult, production cost is high, and resolution is low. Contents of the invention [0003] The purpose of the present invention is to solve the above...

AI Technical Summary

Problems solved by technology

However, with the continuous improvement of industrial automation, the automatic measurement and control system has put forward higher and higher requirements for monitoring the rotation status (including parameters such as rotation speed and rotation direction) of rotating equipment such as engines, motors, and machine tool spindles. The application of many Hall encoders that do not have the function of recognizing the direction of rotation is greatly limited

Although some products have this function, the structure is generally complicated, assembly is difficult, production cost is high, and resolution is low

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