Dual-channel redundant intelligently calibration radio frequency admittance anti-overflow liquidometer and measurement method thereof

Abstract

The invention discloses a dual-channel redundant intelligently calibration radio frequency admittance anti-overflow liquidometer and a measurement method thereof. The dual-channel redundant intelligently calibration radio frequency admittance anti-overflow liquidometer comprises a transmitter board, a concentric metal sleeve, a first metal round bar, a second metal round bar, a sensor 1 and a sensor 2, wherein the first metal round bar and the second metal round bar are coaxially connected and fixed through an insulator and are assembled concentrically with the concentric metal sleeve respectively; the first metal round bar and the second metal round bar are respectively used as a first electrode rod of the sensor 1 and a second electrode rod of the sensor 2; the sensor 1 and the sensor 2respectively input detected voltages and current signals to the transmitter board, and the signals are converted by the transmitter board into liquid level signals. The liquid level height measured bythe dual-channel redundant intelligently calibration radio frequency admittance anti-overflow liquidometer disclosed by the invention has no relation to the dielectric constant of the medium, so compared with a "calculation method of liquid level height without dielectric constant compensation", the liquid level measurement is not affected by the dielectric constant of the medium, and the reliability and precision are higher.

Description

technical field [0001] The invention relates to liquid level measurement technology, in particular to a dual-channel redundant intelligent calibration radio frequency admittance anti-overflow liquid level gauge and a measurement method thereof. Background technique [0002] The existing radio frequency admittance liquid level measurement equipment is a single-channel detection method. The detection rod adopts the detection principle of radio frequency admittance to detect the change of liquid level. This product is widely used in the petrochemical production process, but it is applied to For petrochemical warehousing enterprises, single-channel detection cannot meet the requirements of high reliability, and overflow accidents are prone to occur, forming a major safety hazard in the production of warehousing enterprises. [0003] The materials in the tank area or loading area of ​​petrochemical storage enterprises often change, and the detection principle of radio frequency a...

AI Technical Summary

Problems solved by technology

[0002] The existing radio frequency admittance liquid level measurement equipment is a single-channel detection method. The detection rod adopts the detection principle of radio frequency admittance to detect the change of liquid level. This product is widely used in the petrochemical production process, but it is applied to For petrochemical warehousing enterprises, single-channel detection cannot meet the requirements of high reliability, and overflow accidents are prone to occur, forming a major safety hazard in the production of warehousing enterprises

[0003] The materials in the tank area or loading area of ​​petrochemical storage enterprises often change, and the detection principle of radio frequency admittance is closely related to the dielectric constant of the material. The change of the material dielectric constant will affect the detection results of the measuring equipment, resulting in errors signal output, it is easy to induce overflow accidents

Images