A Parallel Output Angle Sensing Device Based on Ab Incremental Pulse

Abstract

The invention discloses a parallel output angle sensing device based on AB incremental pulse, comprising a power module, a sensing and signal processing module, and an input and output module. The sensing and signal processing module uses a Hall sensor integrated circuit and a programmable logic circuit. The sensing and signal processing module is defined in a programmable language. The responsiveness and sensitivity of measurement devices are enhanced without any increase in the cost of angle measurement. In the aspect of responsiveness, the sampling period is reduced from original 25 microseconds to 3 microseconds.

Description

technical field [0001] The invention relates to a parallel output angle sensing device based on AB incremental pulses, which is converted into an absolute value output mode, improves the responsiveness and sensitivity of the output angle value, and belongs to the field of angular displacement sensing of electronic technology. Background technique [0002] With the improvement of electronic technology, especially large-scale integrated circuit technology, the demand for high-speed, high-precision, and high-response angle measurement in the angular displacement sensing neighborhood is gradually realized, but the output mode of the traditional magnetoelectric angle sensor is limited by its Due to the limitation of sensor design, especially under the condition of low cost, it is difficult to meet the needs of high-speed and high-precision measurement of textile machinery. [0003] From the perspective of application, the present invention combines the incremental output and abso...

AI Technical Summary

Problems solved by technology

[0004] Usually, the output of the angle sensing device is divided into two types: absolute type and incremental type. These two methods have their own advantages and disadvantages; the angle measured by the absolute value method or the length determined by the angle is affected by the serial output rate of the magnetic induction circuit. , the update period of the angle output (T=18*Tclk+Tcsn) usually has a certain limit, the fastest is more than 25 microseconds, and the performance requirements for the readout processor are also very high

[0005] The existing technology only uses the absolute output serial output circuit of magnetic induction, which has poor responsiveness and low sensitivity; in some traditional industries, such as the field of textile machinery; at present, the national industry is upgrading, and textile machinery is also being updated. In order to improve the production efficiency of textile machinery , higher and more precise requirements are put forward for the transmission speed of the original textile machinery, and the original magnetic induction angle sensing device cannot meet this requirement; at the same time, these industries use these angle sensing devices in large quantities, which is very sensitive to cost

Images