Abstract

The present invention provides a leakage detection cable and a method for manufacturing the same, and the leakage detection cable detects a leaking liquid and includes: an electric wire core which includes one or more conductive wires, and a sheath layer that covers the one or more conductive wires; a detection unit which is coupled in a longitudinal direction of a surface of the electric wire core; and a first braided layer which is braided with non-conductive fibers and covers the detection unit, in which the detection unit has a predetermined resistance value that is proportional to a length, and reacts with the liquid such that an output electric current value is changed.

IPC Classes  ?

• G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
• H01B 7/02 - Disposition of insulation
• H01B 7/32 - Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
• H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables
• H01B 13/06 - Insulating conductors or cables
• H01B 3/48 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
• H01B 7/17 - Protection against damage caused by external factors, e.g. sheaths or armouring

Abstract

The present invention provides a conductive liquid detection device wherein: multiple pairs of primary and secondary electrodes are formed on the front surface and the rear surface of a base layer in the longitudinal direction; the front surface and the rear surface of the base layer are coated with an insulating material, and then sensing holes are formed through the center regions of the primary and secondary electrodes to manufacture a sensor film; a pair of double-sided adhesive tape strips having a predetermined length and thickness are bonded to the bottom surface of the sensor film while the sensing holes formed along the centerline in the longitudinal direction are interposed between the tape strips and the tape strips are spaced a predetermined distance apart from each other in the longitudinal direction of the sensor film; a PET film having a shape corresponding to the sensor film is bonded to the other surface of each of the double-sided adhesive tape strips, and a bottom adhesive tape is bonded to the bottom surface of the PET film, whereby a discharge port through which a liquid to be detected, having introduced through the sensing holes, flows out is formed through the space between the double-sided adhesive tape strips bonded to the bottom surface of the sensor film while being spaced the predetermined distance apart from each other.

IPC Classes  ?

• G01M 3/40 - Investigating fluid tightness of structures by using electric means, e.g. by observing electric discharges
• G01M 3/04 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
• G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means

Abstract

The present invention provides a conductive liquid leakage detection device comprising: a band-shaped base layer; a primary coil disposed on the front surface of the base layer; a secondary coil disposed on the back surface of the base layer at the position corresponding to the primary coil and having a shape corresponding to the primary coil; a first cover layer for covering the front surface of the base layer on which the primary coil is disposed; a second cover layer for covering the back surface of the base layer on which the secondary coil is disposed; one or more sensing holes formed through the laminated first cover layer, base layer, and second cover layer; a first transmission line connected to the primary coil so as to apply a magnetically induced oscillation signal thereto; and a second transmission line connected to the secondary coil so as to receive an induced current, wherein the primary coil is formed by coiling winding wires around one of the sensing holes.

IPC Classes  ?

• G01M 3/40 - Investigating fluid tightness of structures by using electric means, e.g. by observing electric discharges
• G01M 3/04 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point

Abstract

The present invention provides a leakage detection cable for detecting a leaked liquid, and a method for manufacturing same, the leakage detection cable comprising: an electric wire core which comprises one or more conductive wires and a cover layer for covering the one or more conductive wires; a detection unit which is connected along the length direction of the surface of the electric wire core; and a first braided layer which is braided with non-conductive fibers and covers the detection unit, wherein the detection unit has a fixed resistance value proportional to the length and has an output current value changing by means of a reaction with the liquid.

IPC Classes  ?

• H01B 7/32 - Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
• G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
• H01B 7/17 - Protection against damage caused by external factors, e.g. sheaths or armouring
• H01B 3/48 - Insulators or insulating bodies characterised by the insulating materialsSelection of materials for their insulating or dielectric properties mainly consisting of organic substances fibrous materials
• H01B 13/00 - Apparatus or processes specially adapted for manufacturing conductors or cables

Abstract

The present invention relates to a leak detection device and a remote monitoring system using the same, and the purpose of the present invention is to enable accurate determination of multiple leak occurrence locations by connecting a plurality of leak sensing films in series by a plurality of slave controllers having a connector, detecting a leak occurring between slave controllers and transmitting the detection result to a remote master controller. In addition, another purpose of the present invention is to provide a remote monitoring system capable of confirming whether there is a leak at a remote place by using a device for controlling the leak sensing films.

IPC Classes  ?

• G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
• F17D 5/06 - Preventing, monitoring, or locating loss using electric or acoustic means
• G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance

Abstract

Disclosed herein are a leak detection device and a remote monitoring system using the same. In accordance with the present invention, locations where multiple leaks have occurred can be accurately determined by connecting a plurality of leak sensing films in series using a plurality of slave controllers having connectors, detecting a leak occurring between the slave controllers, and sending the detected leak to a master controller at a remote place. Furthermore, the present invention provides a remote monitoring system capable of checking whether a leak has occurred or not at a remote place using an apparatus for controlling the leak sensing films.

IPC Classes  ?

• G08B 21/00 - Alarms responsive to a single specified undesired or abnormal condition and not otherwise provided for
• G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
• G08B 21/18 - Status alarms
• G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems

Abstract

The present invention relates to an organic solvent leak detection apparatus and particularly to an organic solvent leak detection apparatus, the resistance value of which changes in response to various leaking organic solvents, thereby detecting not only the leakage of an organic solvent but also the type of the leaking organic solvent. To this end, the apparatus according to the present invention comprises: a base film layer made of a film material; conductive lines formed lengthwise on the upper surface of the base film layer; and a coating layer applied on the upper surface of the base film layer by means of a substance, the resistance value of which changes in response to organic solvents, in a manner that the conductive lines are not exposed to the outside.

IPC Classes  ?

• H01B 1/12 - Conductors or conductive bodies characterised by the conductive materialsSelection of materials as conductors mainly consisting of other non-metallic substances organic substances
• G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means

Abstract

The purpose of the present invention is to provide a composition for oil leak detection and a sensor for oil leak detection having conductive lines formed on a base film by means of a mixture which quickly responds and the resistance value of which changes when in contact with leaking oil. To this end, the composition for oil leak detection according to the present invention comprises a mixture formed by mixing 70-85 parts by weight of a carbon nanotube (CNT) dispersion liquid, 3-15 parts by weight of an alkyd resin, and 5-15 parts by weight of silver flakes. As for the sensor for oil leak detection comprising a base film layer in tape form and conductive lines printed lengthwise on the upper surface of the base film layer, the conductive lines are formed by printing on the base film layer by means of a mixture formed by mixing 70-85 parts by weight of a carbon nanotube (CNT) dispersion liquid, 3-15 parts by weight of an alkyd resin, and 5-15 parts by weight of silver flakes.

IPC Classes  ?

• H01B 1/20 - Conductive material dispersed in non-conductive organic material
• G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means

Abstract

The present invention relates to a connector for connecting a conductive film, wherein the conductive film is penetrated by locating a clip-shaped port at a position corresponding to the channel of a conductive film so as to interlock the conductive film from both top and bottom sides. A cover can be combined with a main body with a one-touch operation, and an alarm module is built inside the connector so as to sense a change in a resistance value due to an oil leak or water leak and to generate an alarm.

IPC Classes  ?

• H01R 12/78 - Coupling devices for flexible printed circuits, flat or ribbon cables or like structures connecting to other flexible printed circuits, flat or ribbon cables or like structures

Abstract

The present invention relates to a device for detecting a leakage of an acidic solution, and more particularly to a device for detecting a leakage of a poisonous acidic solution such as sulfuric acid, hydrochloric acid, nitric acid, hydrofluoric acid, etc. To this end, the device according to the present invention comprises: a base film layer; a pair of conductive lines formed lengthwise in parallel with each other on the upper surface of the base film layer; and a coating layer made of an acid-soluble material applied to the upper surface of the base film layer so as to cover the conductive lines.

IPC Classes  ?

• G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
• G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance

Abstract

The present invention relates to an oil leak detection device. In an aspect, the oil leak detection device includes a base film layer 200 configured in a tape form, a pair of polymer lines 220, 230 formed on a top surface of the base film layer in parallel in a length direction, a pair of conductive lines 210, 240 formed on the top surface of the base film layer in parallel to the pair of polymer lines in the length direction, and an upper protection film layer 300 attached to the top surface of the base film layer and configured to have a plurality of sensing holes 310 formed at specific intervals in the length direction at locations through which only one of the pair of polymer lines is exposed.

IPC Classes  ?

• G01M 3/16 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
• G01M 3/18 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipes, cables, or tubesInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for pipe joints or sealsInvestigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means for valves
• G01M 3/04 - Investigating fluid tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point

Abstract

The present invention relates to a film-type temperature sensor, and the objective of the present invention is to provide a film-type temperature sensor which has a temperature sensing electrode printed on a film, can be easily detached from or attached to a connector module having a wireless transmission function such that a sensed temperature value can be transmitted to a central control center in a remote place, and can be used in a disposable way.

IPC Classes  ?

• G01K 7/16 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements
• G01K 1/02 - Means for indicating or recording specially adapted for thermometers

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.

IPC Classes  ?

• G01F 23/26 - Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields

Abstract

A leakage detection apparatus is disclosed, which comprises a conductive line layer which includes a conductive line which has a certain conductivity in a longitudinal direction; a first resistance line which is spaced apart from the conductive line while running parallel with the conductive line in a longitudinal direction; and a second resistance line which is spaced apart from the first resistance line while running parallel with the first resistance line in a longitudinal direction and is electrically connected with the first resistance line at a certain position; and a controller which allows an electric power to be alternately supplied to the first and second resistance lines, and computes a distance from a leakage position by obtaining a resistance value from the conductive line when a leakage occurs.

IPC Classes  ?

• G01R 31/02 - Testing of electric apparatus, lines, or components for short-circuits, discontinuities, leakage, or incorrect line connection
• G01R 19/00 - Arrangements for measuring currents or voltages or for indicating presence or sign thereof

Abstract

A leak sensor apparatus for sensing moisture formed in a tape shape for sensing moisture when leakage occurs, comprises a base film, a conductive line layer; a protection film layer, wherein said base film, said conductive line layer, and said protection film layer are sequentially stacked in an upward direction; and a conductive line layer which includes a resistance line having a certain resistance value per unit area in a longitudinal direction, and a conductive line which is spaced apart from the resistance line and is formed in parallel with the resistance line, with said protection film layer being equipped with holes at regular intervals so that the resistance and conductive lines of the conductive line layer can be exposed to the outside.

IPC Classes  ?

• G01M 3/40 - Investigating fluid tightness of structures by using electric means, e.g. by observing electric discharges

Abstract

A leak sensor apparatus for sensing moisture is disclosed, which is prepared in such a manner that a base film layer, a conductive line layer and a protection film layer are sequentially stacked on its lower surface in an upward direction, and said conductive line layer includes a resistance line having a certain resistance value per unit area in a longitudinal direction, and a conductive line which is spaced apart from the resistance line and is formed in parallel with respect to the resistance line, and said protection film layer is provided with a plurality of holes which are formed at regular intervals so that the resistance line and the conductive line of the conductive line layer can be exposed to the outside through the holes, respectively.

IPC Classes  ?

• F17D 5/06 - Preventing, monitoring, or locating loss using electric or acoustic means