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High frequency electromagnetic level indicator

A high-frequency electromagnetic and material level meter technology, which is applied in the direction of liquid/fluid solid measurement, engine lubrication, instruments, etc., can solve the problems of affecting measurement accuracy and lack of time calibration function, so as to improve measurement accuracy, ensure service life, The effect of convenient installation of equipment

Inactive Publication Date: 2013-06-05
苏州列维电器设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the different measurement media, the high-frequency electromagnetic level gauge is designed to output multiple signals. When the two detections are different media, the existing high-frequency electromagnetic level gauge has no time calibration function, which seriously affects the measurement accuracy. Calibration before each test is very important

Method used

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Experimental program
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Effect test

Embodiment 1

[0020] like figure 1 As shown, an embodiment of the present invention, a high-frequency electromagnetic level gauge, includes a detection device, a housing, and a control circuit 8. The control circuit includes an MCU microprocessor for controlling the entire control circuit, and converts the detection signal to The signal processing circuit provided to the MCU microprocessor, the HART communication protocol circuit used for the communication protocol of the control circuit, the power supply module providing electric energy for each part, and the output module outputting the detection result of the MCU microprocessor. The housing is provided with an indicator light for displaying an indication signal of the MCU microprocessor and a dial switch for operating the MCU microprocessor. The casing is also provided with input terminals and output terminals for connecting external devices. The control circuit is equipped with a time calibration module for calibrating the time. Before...

Embodiment 2

[0024] The rest is the same as that of Embodiment 1, except that the probe is a casing type, and there are various matching methods according to the needs of different site environments, and it can also be a Teflon type or a single-rod type.

[0025] The beneficial effect of adopting the technical solution is that by setting the time calibration module in the control circuit, it is convenient to perform time calibration before measurement, so as to ensure the accuracy of time and improve the measurement accuracy.

[0026] By setting an over-current protection module in the control circuit, the current is monitored during the detection process to ensure the safety of the product, thereby ensuring the service life of the product.

[0027] At the same time, the equipment is easy to install and has a simple structure. It only needs to be directly installed on the pipeline of the required test liquid for measurement, so as to meet different usage occasions.

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Abstract

The invention discloses a high frequency electromagnetic level indicator which comprises a detector, a shell body and a control circuit. The control circuit comprises a microprogrammed control unit (MCU) microprocessor, a signal processing circuit, a highway addressable remote transducer (HART) communication protocol circuit, a power module and an output module, wherein the MCU microprocessor is used for controlling the whole control circuit, the signal processing circuit is used for converting a detected signal to provide the detected signal for the MCU microprocessor, the HART communication protocol circuit is used for a communication protocol of the control circuit, the power module is used for providing power for each part, and the output module is used for outputting an detection result of the MCU microprocessor. The control circuit is provided with a time calibration module used for conducting time calibration before a device is used. The high frequency electromagnetic level indicator has the advantages that according to the fact that the time calibration module is arranged in the control circuit, the time calibration can be conveniently conducted before detection, accuracy of time is ensured, and detection accuracy is improved.

Description

technical field [0001] The invention relates to a measuring device, in particular to a high-frequency electromagnetic material level gauge. Background technique [0002] High-frequency electromagnetic level gauges are used to measure most liquids and solid powders, such as water, oil, ethanol, etc. And there are different installation forms according to different measuring media. Due to the different measurement media, the high-frequency electromagnetic level gauge is designed to output multiple signals. When the two detections are different media, the existing high-frequency electromagnetic level gauge has no time calibration function, which seriously affects the measurement accuracy. Calibration before each test is very important. Contents of the invention [0003] In order to solve the above technical problems, the object of the present invention is to provide a high-frequency electromagnetic level gauge that performs time calibration before measurement to ensure time...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/284
Inventor 何蔚
Owner 苏州列维电器设备有限公司