Novel automatic calibration device for eddy current liquid level meter

An automatic calibration, liquid level gauge technology, used in measuring devices, test/calibration devices, liquid/fluid solid measurement, etc. Improve efficiency and improve the effect of calibration efficiency

Pending Publication Date: 2018-07-10
JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional manual calibration is time-consuming, labor-intensive, inefficient, and the effect is not good. It can no longer meet the flexible and changeable production requirements and needs to be improved.

Method used

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  • Novel automatic calibration device for eddy current liquid level meter
  • Novel automatic calibration device for eddy current liquid level meter
  • Novel automatic calibration device for eddy current liquid level meter

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Embodiment Construction

[0029] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0030] see figure 1 —4, a kind of eddy current liquid level gauge automatic calibration device of the present invention, comprises calibration rod 1, fixed frame 2, calibration plate 3 and stepper motor 4, and described fixed frame 2 is vertically installed on the base 5, and described calibration The rod 1 is arranged parallel to the fixed frame 2, and the calibration plate 3 is installed at the bottom of the calibration rod 1. The calibration plate is made of a material with a magnetic permeability close to that of liquid steel to ensure that the measurement results during calibration are consistent with the real molten steel. The shape is determined according to the section of the crystallizer. The round billet uses a circular calibration plate, and the square billet uses a square calibration plate. The stepper motor 4 is installed above th...

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PUM

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Abstract

The invention relates to an automatic calibration device for an eddy current liquid level meter. The automatic calibration device comprises a calibration rod, a fixed frame, a calibration plate and astepping motor, wherein the fixed frame is vertically mounted on a base and parallel to the calibration rod; the calibration plate is mounted at the bottom end of the calibration rod; the stepping motor is mounted at the upper part in the fixed frame; a vertical downward lead screw is connected onto an output end of the stepping motor; a lifting block in threaded connection is arranged on the leadscrew; a calibration rod clamp seat is connected with one side of the lifting block; the calibration rod is inserted and fixed in the calibration rod clamp seat; a scaleplate for calibration and measurement is vertically and fixedly mounted on the fixed frame. Under unified control of a liquid level secondary meter, one-key calibration as well as verification and re-check of calibration data is completed by the device, and calibration of an eddy current system is completed greatly and rapidly.

Description

technical field [0001] The invention relates to the technical field of automatic control of mold liquid level of bloom continuous casting machine in steel production, in particular to a novel automatic calibration device for eddy current liquid level gauge. Background technique [0002] The eddy current detection system based on the principle of electromagnetic induction is used for the liquid level detection of the mold of the bloom continuous casting machine, and its main characteristics are sensitive signal and large measuring range. But we know that the eddy current probe can only form a complete and working eddy current sensor together with peripheral factors such as mold copper tube and cover plate, and the simple eddy current probe is only one of its components. The working characteristics of the eddy current sensor in the complete working state are composed of the characteristics of the probe itself and the surrounding environmental factors. Therefore, the online lin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F25/00
CPCG01F25/20
Inventor 夏清华许晓红白云刘金煌朱仲斌周林徐军华
Owner JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
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