A Liquid Level Measuring Device Based on Capacitive Sensor

A technology of capacitive sensor and liquid level measuring device, which is applied in the direction of measuring device, liquid/fluid solid measurement, liquid level indicator for physical variable measurement, etc., can solve the problem that the liquid level measurement method cannot be combined, and achieve good application Foreground, high measurement accuracy, effect of volume reduction

Active Publication Date: 2020-08-11
湖北保乾科技有限公司
View PDF7 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For this reason, the embodiment of the present invention provides a liquid level measurement device based on a capacitive sensor to solve the problem that the existing liquid level measurement method cannot meet the requirements of high precision, good reliability and high temperature environment.

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Liquid Level Measuring Device Based on Capacitive Sensor
  • A Liquid Level Measuring Device Based on Capacitive Sensor
  • A Liquid Level Measuring Device Based on Capacitive Sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Such as figure 1 As shown, this embodiment proposes a liquid level measuring device based on a capacitive sensor, which includes a capacitive sensor 100 and a capacitive measuring instrument 200 connected to the capacitive sensor 100, wherein the capacitive sensor 100 is used to sense the The liquid level of the liquid is measured and the liquid level information is converted into a capacitance value. The capacitance measuring instrument 200 is used to detect the capacitance value, and calculate the liquid level of the liquid to be measured according to the capacitance value.

[0029] The working principle of the liquid level measuring device in this embodiment is as follows: the change of the dielectric constant in the capacitive sensor 100 is caused by the change of the liquid level of the liquid to be measured, and the output capacitance changes, and the linear correlation between the output capacitance and the liquid level of the liquid to be measured, According to ...

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

PUM

No PUM Login to view more

Abstract

Embodiments of the invention disclose a capacitive sensor-based liquid level measurement device. The device comprises a capacitive sensor and a capacitance measurement instrument which is connected with the capacitive sensor, wherein the capacitive sensor is used for sensing the liquid level of to-be-tested liquid and converting the liquid level information into a capacitance value; and the capacitance measurement instrument is used for detecting the capacitance value and calculating the liquid level of the to-be-tested liquid according to the capacitance value. The device is suitable high-temperature (300 DEG C) liquid; the measurement precision is high; the non-invasion type capacitive sensor is adopted so that the service life of the measurement device is greatly prolonged; connection mechanisms such as a connection rod and the like are not used so that the volume of the measurement device is greatly decreased; and the structure is simple and the leads are few, so that the reliability of the device is improved, and the device is particularly suitable for small nuclear heating reactors and has a favorable application prospect.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of liquid level measurement, and in particular to a liquid level measurement device based on a capacitive sensor. Background technique [0002] Common liquid level measurement methods suitable for high-temperature environments include: liquid level measurement methods based on ultrasonic sensors, liquid level measurement methods based on inductive sensors, and liquid level measurement methods based on magnetostrictive sensors. The liquid level measurement method based on the ultrasonic sensor relies on the time difference of the ultrasonic wave reflected on the liquid medium interface to obtain the position signal. The method uses the inductance coil to measure the liquid level intermittently, which has the advantage of high precision and the disadvantage of more coils and low reliability; the liquid level measurement method based on the magnetostrictive sensor obtains the position by d...

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

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Patents(China)
IPC IPC(8): G01F23/26
CPCG01F23/263
Inventor 胡广
Owner 湖北保乾科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap