Correction method for capacitive material level sensing device and anti-interference method for multiple capacitive material level sensing devices

A technology of a sensing device and a calibration method, applied in the calibration of capacitive material level sensing devices, and the anti-interference field of complex capacitive material level sensing devices, can solve problems such as mutual interference, and achieve the effect of improving accuracy

Active Publication Date: 2017-02-15
上海凡宜科技电子有限公司 +1
View PDF9 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Another object of the present invention is to provide an anti-interference method for a plurality of capacitive material level sensing devices, to solve the problem of mutual interference between multiple capacitive material level sensing devices, and improve the performance of capacitive material level sensing. device accuracy

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
  • Correction method for capacitive material level sensing device and anti-interference method for multiple capacitive material level sensing devices
  • Correction method for capacitive material level sensing device and anti-interference method for multiple capacitive material level sensing devices
  • Correction method for capacitive material level sensing device and anti-interference method for multiple capacitive material level sensing devices

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0055] For the detailed description and technical content of the present invention, please refer to the following detailed description and description of the accompanying drawings, and the accompanying drawings and detailed description are only for illustrative purposes and are not intended to limit the present invention.

[0056] Please refer to figure 1 , Which is the flow chart of the calibration method of the capacitive level sensing device of the present invention; please also refer to figure 2 , Which is a block diagram of a capacitive level sensing device applying the calibration method of the present invention. A capacitive level sensing device 10 includes a measurement signal generating circuit 102, a sensing rod 106, a sensing circuit 108, and a control unit 112. The calibration method is applied to a barrel measurement, and the calibration method includes the following steps:

[0057] S02: The measurement signal generating circuit 102 generates a measurement signal 104 ...

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

The invention discloses a correction method for a capacitive material level sensing device. The method is applied to measurement of a drum tank. The correction method comprises following steps: generating a measuring signal by a measuring signal generation circuit to measure the drum tank; transmitting a sensing signal to a control unit by a sensing circuit based on a measuring result measured by the measuring signal; determining whether the sensing signal is within the effective range by a control unit according to the sensing signal; setting a total capacitance value corresponding to the sensing signal by the control unit as measuring reference value if the control unit determines that the sensing signal is within the effective range; and controlling the measuring signal generation circuit by the control unit to adjust measuring frequency of the measuring signal if the control unit determines that the sensing signal is not within the effective range. The method is capable of automatically correcting the capacitive material level sensing device.

Description

Technical field [0001] The invention relates to a correction method of a material level sensing device and an anti-interference method of a plurality of material level sensing devices, in particular to a correction method of a capacitive material level sensing device and the prevention of multiple capacitive material level sensing devices Interference method. Background technique [0002] The principle of the capacitive level sensing device is: the material to be measured and the tank are regarded as an equivalent capacitance; when the sensing rod of the capacitive level sensing device is covered by the material, a capacitance value will be generated, making the circuit The signal is changed. However, many variables affect the accuracy of the capacitive level sensing device; therefore, after the capacitive level sensing device is installed, the user must manually adjust the capacitive level sensing device, which is very inconvenient. Moreover, when a plurality of capacitive lev...

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 Applications(China)
IPC IPC(8): G01F23/26G01F25/00
Inventor 黄胤纶郑兆凯廖基帆侯宜良
Owner 上海凡宜科技电子有限公司
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