A processing method for signal distortion of magnetoelectric speed sensor

A speed sensor and processing method technology, applied in the field of signal processing, can solve the problems such as waveform distortion, normal value display and deviation of the output signal of the magnetoelectric speed sensor, so as to solve the problem of signal distortion of the magnetoelectric speed sensor, short processing time, Easy to get effects
CN106771322BActive Publication Date: 2020-08-04SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
5 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
Publication Date
2020-08-04

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

An electromagnetic type speed sensor signal distortion processing method belongs to the signal processing technical field, and comprises the following steps: using an electromagnetic type speed sensor to convert a rotate speed phonic wheel rotate speed into an AC voltage signal, and outputting same; using an oscilloscope to collect the AC voltage signal waveform outputted by the electromagnetic type speed sensor; calculating and removing the AC voltage signal waveform distortion portion, and leaving the waveform peak-to-peak value Vout; using the peak-to-peak value Vout to build a bidirectional amplitude limit network, and parallelly connecting the bidirectional amplitude limit network between the electromagnetic type speed sensor and a revolution meter; using the bidirectional amplitude limit network to limit the AC voltage signal amplitude inputted by the electromagnetic type speed sensor into a preset range; using the revolution meter to calculate the rotating speed of a tested rotor according to the AC voltage signal frequency after amplitude limitation. The method can solve the electromagnetic type speed sensor signal distortion problems caused by an irregular rotate speed phonic wheel, is easy in material taking, short in processing time, and fast in effectiveness.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of signal processing, and in particular relates to a processing method for signal distortion of a magnetoelectric rotational speed sensor. Background technique

[0002] Conventional speed measurement / acquisition systems such as figure 1 As shown, it is usually composed of a speed tone wheel mechanically connected to the rotor under test, a magnetoelectric speed sensor, a measuring line, and a tachometer or acquisition device. When the teeth on the magnetic speed sound wheel sweep over the sensitive end of the speed sensor, The magnetic field strength of the iron core of the speed sensor with a permanent magnet inside changes alternately, so that an AC induced voltage that is completely consistent with the frequency of the tooth top of the sound wheel at the sensitive end of the sensor can be generated at both ends of the coil lead wire of the speed sensor. The rotational speed of the measured rotor can be o...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More