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Harmonic suppression type signal processing system used for electrolytic-tank anode current measuring device

A technology for measuring devices and anode current, applied in the directions of measuring devices, measuring electrical variables, measuring current/voltage, etc., can solve problems such as poor signal processing effects, improve the effect of analysis and processing, ensure accurate measurement, and clean signals Effect

Inactive Publication Date: 2016-12-21
SICHUAN HUASUO AUTOMATION INFORMATION ENGCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defect that the signal processing system in the electrolytic cell anode current measuring device in the prior art is not effective in signal processing, and to provide a harmonic suppression type signal processing system for the electrolytic cell anode current measuring device

Method used

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  • Harmonic suppression type signal processing system used for electrolytic-tank anode current measuring device
  • Harmonic suppression type signal processing system used for electrolytic-tank anode current measuring device
  • Harmonic suppression type signal processing system used for electrolytic-tank anode current measuring device

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Embodiment

[0023] During implementation, the present invention mainly consists of processing chip U, signal collector JS, triode VT4, resistance R18, resistance R19, polar capacitor C11, polar capacitor C12, inductance L2, diode D7, diode D8, signal conditioning circuit, phase lock Ring circuit, second-order low-pass filter circuit, emitter coupled logic circuit, and linear isolation circuit.

[0024] When connected, the anode of the polarity capacitor C12 is connected to the emitter of the triode VT4, and the cathode is connected to the COMP pin of the processing chip U after passing through the inductance L2. The positive pole of the polar capacitor C11 is connected to the B pin of the processing chip U, and the negative pole is connected to the COMP pin of the processing chip U. One end of the resistor R18 is connected to the collector of the triode VT4, and the other end is grounded.

[0025] At the same time, the P pole of the diode D7 is connected to the base of the transistor VT4...

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Abstract

The invention discloses a harmonic suppression type signal processing system used for an electrolytic-tank anode current measuring device. The harmonic suppression type signal processing system is characterized by mainly comprising a processing chip U, a signal acquisition device JS, a triode VT4, a polarity capacitor C11, a diode D8, a phase-locked loop circuit serially connected between a COMP pin and a CS pin of the processing chip U, a second-order low-pass filtering circuit connected with the signal acquisition device JS, an emitter coupling logic circuit serially connected between the second-order low-pass filtering circuit and the processing chip U, a signal conditioning circuit serially connected between the emitter coupling logic circuit and an IN pin of the processing chip U, and a linear isolating circuit connected with an OUT pin, a G pin and a CLK pin of the processing chip U. The harmonic suppression type signal processing system has the advantages of reasonable design, simple overall structure and good using effect, and can ensure accurate measurement of the current of an anode rod of the electrolytic-tank anode current measuring device.

Description

technical field [0001] The invention relates to a processing system, specifically, a harmonic suppression type signal processing system for an anode current measuring device of an electrolytic cell. Background technique [0002] In the domestic aluminum electrolysis industry, it is usually necessary to measure the distribution of anode current during the production process of prebaked electrolytic cells. The traditional anode current detection system adopts the manual measurement method of offline equidistant voltage drop. Due to the manual measurement of offline equidistant voltage drop The method can only measure one anode at a time, and then measure the next anode after the operation is completed. The measurement procedure of this measurement method is complicated, the workload is heavy, and the measurement time is long, resulting in a time difference in the measurement results, which cannot truly reflect the anode current of the electrolytic cell. of the distribution. W...

Claims

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Application Information

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IPC IPC(8): G01R19/00
CPCG01R19/00
Inventor 郭力
Owner SICHUAN HUASUO AUTOMATION INFORMATION ENGCO
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