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Capacitive water-level detection sensor

A technology of liquid level sensor and electrostatic capacity, which is used in liquid level indicators for physical variable measurement, parts of electrical measuring instruments, liquid level indicators, etc. problems such as position, to achieve the effect of simple manufacturing, simple wiring and low cost

Inactive Publication Date: 2014-11-05
YUMIN SYST TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] Usually, when an infusion bag or bottle is administered in a hospital, it is difficult to frequently check the infusion level due to the long infusion time.
In order to grasp the liquid level, the nurse can roughly estimate the time according to the input volume of the infusion, but this is not only inaccurate, but also the infusion needle cannot be pulled out in time if the time is forgotten.

Method used

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  • Capacitive water-level detection sensor
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  • Capacitive water-level detection sensor

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Embodiment Construction

[0013] The present invention will be described in detail below according to the accompanying drawings.

[0014] Such as figure 1 As shown, the present invention is mainly composed of a sensor membrane 100 and a connector module 200 .

[0015] The sensor diaphragm 100 is composed of a base film 110, an adhesive layer 120 disposed on the lower side of the base film 110, and a protective layer 130 laminated on the upper side of the base film 110 for protecting the base film. constitute.

[0016] The tape base film 110 is made of film materials such as PET, PE, PTFE, PVC, etc., and a pair of strip-shaped electrodes 111 in the shape of conductive lines are formed on it in the longitudinal direction. The electrodes 111 are printed with silver (silver) compound. Or 0~20Ω pure conductive ink and so on.

[0017] The electrodes 111 are electrically connected to the connection joint 112 formed at one end of the base film 110 , and the ends of a pair of electrodes 111 are electrically ...

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Abstract

The present invention relates to a water-level detection sensor, and the aim thereof is to provide a capacitive water-level detection sensor in which an electrode for capacitively sensing a water level is formed on a film by means of a printing method, and attachment to and detachment from a connector module capable of wireless transmission is facilitated such that the value representing the sensed water level can be transmitted to a remote control center. The water-level sensor is disposable.

Description

technical field [0001] The invention relates to a liquid level sensor, in particular to an electrode printed on a diaphragm to sense the liquid level in the form of electrostatic capacitance, which is easy to connect and disconnect from a wireless module, and transmits the sensed liquid level value to a remote workstation Disposable electrostatic capacitive liquid level sensor. Background technique [0002] Usually, when using an infusion bag or an infusion bottle to administer an infusion in a hospital, it is difficult to frequently confirm the infusion liquid level because the infusion takes a long time. In order to grasp the liquid level, the nurse can roughly estimate the time according to the input volume of the infusion, but this is not only inaccurate, but also the infusion needle cannot be pulled out in time if the time is forgotten if one is not careful. Contents of the invention [0003] The purpose of the present invention is to make up for the deficiencies of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F23/26
CPCG01F23/263G01F23/268G01F23/26G01R1/0416
Inventor 俞洪根
Owner YUMIN SYST TECH
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