KR20170088078A - Gas-meter having fuction of compensating temperature and pressure - Google Patents

Gas-meter having fuction of compensating temperature and pressure Download PDF

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Publication number
KR20170088078A
KR20170088078A KR1020160007966A KR20160007966A KR20170088078A KR 20170088078 A KR20170088078 A KR 20170088078A KR 1020160007966 A KR1020160007966 A KR 1020160007966A KR 20160007966 A KR20160007966 A KR 20160007966A KR 20170088078 A KR20170088078 A KR 20170088078A
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South Korea
Prior art keywords
gas
pressure
sensor
temperature
flow rate
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KR1020160007966A
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Korean (ko)
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KR101810976B1 (en
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정문식
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정문식
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F3/00—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow
    • G01F3/02—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement
    • G01F3/20—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows
    • G01F3/22—Measuring the volume flow of fluids or fluent solid material wherein the fluid passes through the meter in successive and more or less isolated quantities, the meter being driven by the flow with measuring chambers which expand or contract during measurement having flexible movable walls, e.g. diaphragms, bellows for gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D1/00—Pipe-line systems
    • F17D1/02—Pipe-line systems for gases or vapours
    • F17D1/04—Pipe-line systems for gases or vapours for distribution of gas
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D3/00—Arrangements for supervising or controlling working operations
    • F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17D—PIPE-LINE SYSTEMS; PIPE-LINES
    • F17D5/00—Protection or supervision of installations
    • F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

A pressure gauge integrated gas meter comprises a lower case having a pair of gas chambers each having a diaphragm formed therein and a gas inlet and a gas outlet formed on both sides of the upper case to cover the upper surface of the lower case. And an upper case having an installation groove recessed inwardly at a front side thereof and a rotary shaft having one end coupled to the rotating gear in association with the pumping action of the diaphragm and the other end exposed to the outside of the upper case having the installation groove And a temperature sensor for detecting a temperature of a gas flowing through the gas inlet, the temperature sensor detecting a temperature of the gas flowing through the gas inlet, the temperature sensor detecting a temperature of the gas flowing through the gas inlet, Sensor and the pressure of the gas flowing through the gas inlet Calculating a non-corrected flow rate of the gas based on the sensor section including the force sensor and the detected number of rotations of the magnetic body, and converting the non-corrected flow rate to the corrected actual flow rate based on the detected temperature and pressure of the gas And a control unit.
According to the present invention, since the structural deformations of the conventional gas meter are minimized, the manufacturing cost is greatly reduced and the amount of gas used is calculated using the number of revolutions of the magnetic body detected through the hall sensor, Can be calculated more precisely.
In addition, since the temperature sensor for measuring the temperature and the pressure of the gas and the sensor unit including the pressure sensor are integrally provided, the non-correction flow rate of the gas calculated using the rotation number of the magnetic body can be set to the temperature And the actual flow rate corrected according to the pressure.
In addition, since the temperature and pressure of the gas and the corrected actual flow rate are visually provided to the user through the display unit, it is possible to omit the complicated structure of the conventional mechanical indicator unit composed of a plurality of rotating plates, It is possible to prevent an erroneous measurement of the gas consumption.
By preventing the hole sensor for detecting the number of revolutions of the magnetic body from being disturbed by the electromagnetic field externally operated, the flow rate of the gas can be more accurately detected through the hall sensor.

Description

[0001] Gas-meter having a compensating temperature and pressure [0002]

The present invention relates to a gas pressure compensated integral type gas meter, and more particularly, to a gas pressure compensated integral gas meter which minimizes the structural change of an existing gas meter, thereby significantly reducing the manufacturing cost and more accurately calculating the actual flow amount corrected according to temperature and pressure, And a calibrated actual flow rate can be visually provided to a user through a display unit.

As the supply of city gas to pay a fee increases according to recent usage, a gas meter is installed in the outdoor of a general home or apartment to measure gas consumption.

Such a gas meter is provided with a pair of membranes (diaphragms) therein, and gas is supplied by the pumping action of the diaphragm. At this time, the flow rate of the supplied gas is measured by using a gear mechanism associated with the diaphragm.

1 is a partially cutaway perspective view of a conventional gas meter.

Referring to FIG. 1, the gas meter of the related art is provided with intake and exhaust ports 2, 2 'through which gas flows into and out of both ends of an upper side of a main body 1 constituting an outer case, A guide display unit 3 including a plurality of rotary plates 3a on which numerals (not shown) are displayed on the surface, is provided for counting and displaying the amounts of gas sucked and exhausted, Diaphragms 4 and 4 'are provided at left and right lower portions of the main body 1 and diaphragm levers 4a connected to the diaphragms 4 and 4' A pair of top arms 6 and 6 'connected to the shafts 5 and 5' and a pair of arms 6 and 6 'connected to the shafts 5 and 5' A crank gear 8 connected to each of the push rods 7 and 7 'and a crank gear 8 connected to the push rods 7 and 7' And it is configured as a rotary slide (9) limiting the amount of gas sucked by the diaphragm (4, 4 ') rotation.

In the conventional gas meter, when the gas is introduced through the inlet 2, the gas introduced through the gas inlet of the rotary slide 9 is supplied to the space where the one diaphragm 4 is installed to push the diaphragm 4 The diaphragm 4 and the diaphragm 4a connected to the diaphragm 4 are rotated to rotate the respective shafts 5 and 5 '. As the shafts 5 and 5' rotate, the respective top arms 6 and 6 ' 'And the push rods 7 and 7' reciprocate.

The gear 11 'of the connecting rod 10' associated with the rotating cam adjusting plate rotary shaft is rotated by the reciprocating motion of the push rod 7 or 7 ' And the amount of gas used is displayed.

However, since the conventional gas meter described above is structured mechanically both of the gear mechanism connected to the diaphragm and the indicator display unit, the internal structure is complicated, and when the gas meter is used for a long period of time, an error occurs due to mechanical wear, There is a problem that measurement is difficult.

In addition, since the conventional gas meter is mainly installed in an outdoor environment with a large temperature change, it has been difficult to accurately detect the amount of gas used. That is, in general, the volume of the gas increases or decreases as the temperature or the pressure increases or decreases. As the volume of the gas whose volume changes according to the temperature or the pressure is not corrected, There is a problem that it is not possible to provide an accurate actual flow rate to the user.

Accordingly, there has been a problem in that a pressure compensator for compensating the gas consumption according to the temperature or the pressure must be installed separately on one side of the gas meter.

Korean Patent Publication No. 1998-0026705 " Temperature Compensating Device of Membrane Gas Meter "

SUMMARY OF THE INVENTION It is an object of the present invention to provide a magnetic body and a Hall sensor so as to minimize structural deformation of a conventional gas meter and to use the number of rotations of a magnetic body detected through a Hall sensor So that the amount of gas used can be more accurately calculated.

It is another object of the present invention to provide a display unit for integrally providing a temperature sensor for measuring the temperature and pressure of a gas and a sensor unit having a pressure sensor and visually providing the temperature, Pressure-compensated integral-type gas meter.

It is still another object of the present invention to provide a pressure compensated integral type gas meter provided with an electromagnetic shielding portion for preventing the Hall sensor for detecting the number of revolutions of the magnetic body from being disturbed by an electromagnetic field externally operated.

According to an aspect of the present invention, there is provided a gas sensor comprising: a lower case having a pair of gas chambers each provided with a diaphragm therein; a gas inlet and a gas outlet formed on both sides of the upper case, And a rotary shaft having one end connected to the rotating gear in conjunction with the pumping action of the diaphragm and the other end exposed to the outside of the upper case having the mounting groove formed therein, A gas meter comprising: a magnetic body coupled to the other end of the rotating shaft; a Hall sensor installed at a predetermined distance from the magnetic body, for detecting the number of revolutions of the magnetic body; and a temperature sensor for detecting the temperature of the gas flowing through the gas inlet And a pressure sensor for detecting the pressure of the gas flowing through the gas inlet And a control unit for calculating the non-corrected flow rate of the gas based on the detected rotation speed of the magnetic body and converting the non-corrected flow rate to the corrected actual flow rate based on the detected temperature and pressure of the gas Pressure-integrated gas meter is provided.

Here, an electromagnetic shielding plate passing through the rotation shaft and fixed on the outer surface of the upper case of the upper case and a rear portion of the electromagnetic shielding plate are installed on the front surface of the electromagnetic shielding plate, And an electromagnetic shielding cover which shields the external space.

And a cover which is installed inside the shielding cover and covers the magnetic body and the front and the side of the rotating shaft to seal the magnetic body and the rotating shaft and the outside, And a first sealing member interposed between the electromagnetic shielding plate and the inside of the cover.

And a fixing block installed on one side of the upper case and coupled to one side of the upper case on the other side thereof for covering the front of the upper case, And a second sealing member which is provided between the other side and the one side of the upper case where the installation groove is formed and seals the inside of the fixing block with the outside.

The apparatus may further include a display unit for visually providing the user with the detected temperature and pressure of the detected gas and the corrected actual flow rate.

It is more preferable that the sensor unit is an integrated sensor capable of simultaneously measuring the temperature and the pressure of the gas flowing through the gas inlet.

According to the present invention, since the structural deformations of the conventional gas meter are minimized, the manufacturing cost is greatly reduced and the amount of gas used is calculated using the number of revolutions of the magnetic body detected through the hall sensor, Can be calculated more precisely.

In addition, since the temperature sensor for measuring the temperature and the pressure of the gas and the sensor unit including the pressure sensor are integrally provided, the non-correction flow rate of the gas calculated using the rotation number of the magnetic body can be set to the temperature And the actual flow rate corrected according to the pressure.

In addition, since the temperature and pressure of the gas and the corrected actual flow rate are visually provided to the user through the display unit, it is possible to omit the complicated structure of the conventional mechanical indicator unit composed of a plurality of rotating plates, It is possible to prevent an erroneous measurement of the gas consumption.

By preventing the hole sensor for detecting the number of revolutions of the magnetic body from being disturbed by the electromagnetic field externally operated, the flow rate of the gas can be more accurately detected through the hall sensor.

1 is a partially cutaway perspective view of a conventional gas meter.
2 is a perspective view of a pressure-gage integrated gas meter according to an embodiment of the present invention.
3 is a partially exploded perspective view of a lower case of a pressure gauge integrated gas meter according to an embodiment of the present invention.
4 is a partially exploded perspective view of an upper case of a pressure gauge integrated gas meter according to an embodiment of the present invention.
5 is a view for explaining the operation of the pressure adjustment integrated type gas meter according to the embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the drawings. It is to be noted that like elements in the drawings are represented by the same reference numerals as possible. Further, detailed description of known functions and configurations that may unnecessarily obscure the gist of the invention will be omitted.

3 is a partially exploded perspective view of a lower case of a pressure-gage integrated gas meter according to an embodiment of the present invention. FIG. 4 is a cross- Is a partially exploded perspective view of an upper case of a pressure-gage-integrated gas meter according to an embodiment of the present invention.

2 to 4, a pressure-gage integrated gas meter 1 according to an embodiment of the present invention includes a lower case 10, an upper case 20, a magnetic body 40, a hall sensor 50, A cover 60, an electromagnetic shield 70, a cover 80, a control unit 90, and a display unit 100.

The lower case 10 is formed with a pair of gas chambers each having a diaphragm 11 for pumping action for the inflow and outflow of gas therein.

The upper case 20 is coupled to cover the upper surface of the lower case 10 and has a gas inlet 21 and a gas outlet 22 formed on both sides of the upper case 20. An installation recess S, .

The other end of the rotary shaft 30 which is coupled to the rotating gear (not shown) in conjunction with the pumping action of the diaphragm 11 is exposed to the outside of the upper case 20 in which the mounting groove S is formed And a cylindrical magnetic body accommodating portion 31 having a circular receiving groove 31a formed at the front end thereof is coupled to the other end of the rotating shaft 30.

The unshown gear is connected to the diaphragm lever 11a which is pivoted by the pumping action of each diaphragm 11 and is connected to the pivot shaft 12a extending upward from the lower case 10, A top arm 12b for switching the rotation of the rotary shaft 12a to a linear motion and a cam regulating plate 12c connected to the push rod 12c and the push rod 12c to switch the linear motion of the push rod 12c into rotary motion, And engages with the crank gear 12e of the crank mechanism 12 including the crank gear 12e that meshes with the cam 12d and the cam adjusting plate 12d and rotates.

The structure described above is the same as the structure of a conventional gas meter. The present invention is characterized in that the pumping action of the upper case 20, the lower case 10, and the diaphragm 10 constituting the enclosure of the existing gas meter, The structure of the crank mechanism 12 to be converted is used as it is, thereby minimizing the structural change of the existing gas meter.

The magnetic body 40 is coupled to the receiving groove 31a of the magnetic body accommodating portion 31 coupled to the other end of the rotary shaft 30. [

The hall sensor 50 is installed in front of the upper case 20 spaced apart from the magnetic body 40 by a predetermined distance and detects the number of rotations of the magnetic body 40 to provide a control unit 90 to be described later.

The sensor unit 60 includes a temperature sensor 61 and a pressure sensor 62 for detecting the temperature and pressure of the gas flowing into the upper case 20 through the gas inlet 21.

Here, the sensor unit 60 is installed in the form of a substrate having one side of the front side of the upper case 20 on which the mounting groove S is formed, the side surface of which is connected to the inside of the upper case 20, And a temperature sensor 61 and a pressure sensor 62 are provided on one surface exposed to the inside.

The sensor unit 60 detects the temperature and pressure of the gas flowing through the gas inlet 21 through the temperature sensor 61 and the pressure sensor 62 and outputs the detected temperature and pressure to the control unit 90, .

The electromagnetic shielding portion 70 is for preventing disturbance of the Hall sensor 50 detecting the number of revolutions of the magnetic body 40 due to the influence of the electromagnetic field externally acting on the electromagnetic shielding plate 71, (72).

The electromagnetic shielding plate 71 is formed in the shape of a disk, the center of which is penetratively coupled to the rotary shaft, and the rear portion of the electromagnetic shielding plate 71 is fixed to one side of the outer surface of the upper case 20.

The electromagnetic shielding cover 72 is formed in a cylindrical shape with one end open and has an open end coupled to the front portion of the electromagnetic shielding plate 71 and installed to cover the front and the side of the hall sensor 50, (50) and the outside.

Here, the electromagnetic shielding part 70 is preferably made of a ferromagnetic material so that an electromagnetic field externally acting does not affect the hall sensor 50.

The cover 80 has a cylindrical shape whose one end is opened and is formed to have a diameter smaller than the diameter of the electromagnetic shielding cover 72 and is provided inside the electromagnetic shielding portion 70. The open end of the cover 80 is a front surface of the electromagnetic shielding plate 71 And covers the front and the sides of the rotating shaft 30 and the magnetic body 40 to seal the rotating shaft 30 and the magnetic body 40 and the outside.

The above-described hall sensor 50 is provided on one side of the outer surface of the cover 80 corresponding to the magnetic body 40. The cover 80 is a hole sensor 50 for easily detecting the number of rotations of the magnetic body 40 It is preferable to be formed of a transparent material.

The cover 80 is installed in the upper case 20 so that the gas introduced into the upper case 20 flows through the connecting portion between the upper case 20 and the rotary shaft 30, To the outside.

In order to more reliably prevent the gas that has flowed out from the inside of the upper case 20 into the inside of the cover 80 from flowing out to the outside, a first sealing member (not shown) is provided between the cover 80 and the electromagnetic shielding plate 71, 81 are preferably provided.

Here, it is preferable that the first sealing member 81 is formed in a ring shape and formed of a rubber material having fluidity.

The controller 90 receives the rotational speed of the magnetic body 40 from the Hall sensor 50 and calculates the non-corrected flow rate of the gas. The controller 90 receives the temperature and pressure of the gas from the sensor 60, And calculates the corrected actual flow rate.

At this time, the controller 90 may calculate the corrected actual flow rate of the gas using the non-corrected flow rate of the gas and the temperature and pressure of the gas detected from the sensor unit 60, The corrected actual flow rate of the gas corresponding to the non-corrected flow rate of the gas and the temperature and pressure of the gas detected from the sensor unit 60 may be calculated in the form of a table using a look-up table stored in the memory.

The control unit 90 includes a fixed block B mounted on one side of the upper case 20 having the other side formed with the mounting groove S and covering the front of the upper case 20 on which the mounting groove S is formed, And is installed in the form of a substrate on one side exposed to the outside of the substrate.

Between the one side of the upper case 20 on which the mounting groove S is formed and the other side of the stationary block B, gas which can flow out from the inside of the cover 80 to the outside of the stationary block B It is preferable to further provide a second sealing member 91 for preventing leakage.

Here, it is preferable that the second sealing member 91 is made of a rubber material having fluidity like the first sealing member 81.

The first sealing member 81 is provided between the cover 80 and the electromagnetic shielding plate 71 and the second sealing member 91 is provided between the fixing block B and the upper case 20. Thus, Even if the gas inside the upper case 20 flows out through the connection portion between the upper case 20 and the rotary shaft 30 through the double hermetically sealed structure in which the gas is leaked out to the outside, do.

The display unit 100 is provided on one side of the control unit 90 exposed to the outside and detects the temperature and the pressure of the gas detected from the sensor unit 60 and the non- And serves to visually provide the user with the actual flow rate corrected based on the detected temperature and pressure.

In addition, the present invention can be applied to a display unit 100 and a display unit 100, which are formed by forming a rectangular parallelepiped having one side opened and one end thereof is coupled to one side of the upper case 20 to cover the front and the side of the fixed block B, And an outer cover 110 having a viewing window 111 formed on one side thereof.

In addition, although not shown in the drawing, the present invention may further include a power supply unit for supplying power to the sensor unit 60, the controller 90, and the display unit 100, The secondary battery 20 may be mounted on one side of the upper case 20 and charged at a predetermined interval.

As described above, the pressure-compensated integral-type gas meter according to an embodiment of the present invention uses the structure of the upper case, the lower case, and the crank mechanism that converts the pumping action of the diaphragm into rotational motion, Accordingly, the structure change of the existing gas meter is minimized, and the production cost is greatly reduced. Further, it is possible to more accurately calculate the gas consumption amount by calculating the gas consumption amount using the rotation number of the magnetic body detected through the hall sensor.

In addition, since the temperature sensor for measuring the temperature and the pressure of the gas and the sensor unit provided with the pressure sensor are integrally provided, the non-correction flow rate of the gas calculated using the rotation speed of the magnetic body can be controlled with temperature and / It is possible to easily calculate the actual flow rate corrected according to the pressure.

In addition, since the temperature and pressure of the gas and the corrected actual flow rate are visually provided to the user through the display unit, it is possible to omit the complicated structure of the conventional mechanical indicator unit composed of a plurality of rotating plates, It is possible to prevent an erroneous measurement of the gas consumption.

By preventing the hole sensor for detecting the number of revolutions of the magnetic body from being disturbed by the electromagnetic field externally operated, the flow rate of the gas can be more accurately detected through the hall sensor.

5 is a view for explaining the operation of the pressure compensation integrated gas meter according to an embodiment of the present invention.

5, when the gas is introduced through the gas inlet, the diaphragm is driven and coupled to the rotating gear in association with the pumping action of the diaphragm. As the rotating shaft is rotated, the magnetic body coupled to the rotating shaft rotates.

At this time, the Hall sensor detects the number of revolutions of the magnetic body and provides it to the control unit.

When the gas flows in through the gas inlet, a temperature sensor and a pressure sensor installed in the sensor unit are operated, and a temperature sensor and a pressure sensor detect the temperature and pressure of the gas and provide the detected temperature and pressure to the control unit.

On the other hand, the control unit calculates the flow rate of the gas based on the number of revolutions of the magnetic body provided from the hall sensor, and the calculated flow rate is a non-corrected flow rate that is not corrected by the temperature and the pressure.

The controller calculates the corrected non-corrected flow rate using the temperature and pressure of the gas supplied from the sensor unit and the preset lookup table stored in the memory as the corrected actual flow rate.

Thereafter, the control unit visually provides the user with the temperature and pressure of the gas and the corrected actual flow rate through the display unit.

Although the present invention has been described in connection with the preferred embodiments, it is possible to make various modifications and variations without departing from the spirit and scope of the invention. It is, therefore, to be understood that the appended claims will include all such modifications and changes as fall within the true spirit of the invention.

1: Integrated pressure gas meter
10: lower case 11: diaphragm
11a: diaphragm lever 12: crank mechanism
12a: Pivot shaft 12b: Top arm
12c: push rod 12d: cam regulating plate
12e: crank gear 20: upper case
21: gas inlet 22: gas outlet
30: rotation axis 31: magnetic body accommodating portion
31a: receiving groove 40: magnetic body
50: Hall sensor 60: Sensor part
61: temperature sensor 62: pressure sensor
70: Electromagnetic shielding part 71: Electromagnetic shielding plate
72: electromagnetic shielding cover 80: cover
81: first sealing member 90:
91: second sealing member 100:
110: outer cover 111:
S: Installation home B: Fixed block

Claims (6)

A lower case having a pair of gas chambers each having a diaphragm formed therein, and a gas inlet and a gas outlet formed on both sides of the upper case to cover the upper surface of the lower case, A gas meter comprising an upper case and a rotary shaft having one end connected to a rotating gear in association with a pumping action of the diaphragm and the other end exposed to the outside of the upper case having the mounting groove,
A magnetic body coupled to the other end of the rotating shaft;
A Hall sensor installed at a predetermined distance from the magnetic body and detecting the number of revolutions of the magnetic body;
A sensor unit including a temperature sensor for detecting the temperature of the gas flowing through the gas inlet and a pressure sensor for detecting the pressure of the gas flowing through the gas inlet;
And a controller for calculating a non-corrected flow rate of the gas based on the detected number of revolutions of the magnetic body and converting the non-corrected flow rate to the corrected actual flow rate based on the detected temperature and pressure of the gas Integrated gas meter with pressure compensation. The method according to claim 1,
An electromagnetic shielding plate passing through the rotating shaft and having a rear portion fixed to one side of the outer surface of the upper case;
And an electromagnetic shielding cover coupled to a front surface of the electromagnetic shielding plate and covering the front and the side of the hall sensor to shield the hall sensor and the outside. Integrated gas meter. 3. The method of claim 2,
A cover installed on the front surface of the shield plate and installed inside the shield cover to cover the magnetic body and the front and the sides of the rotation shaft to seal the magnetic body and the rotation shaft and the outside;
Further comprising a first sealing member interposed between the cover and the electromagnetic shielding plate to seal the inside of the cover. The method according to claim 1,
And a fixing block installed to cover the front of the upper case having the mounting groove formed therein, wherein the control block is provided on one side, the other side is coupled to one side of the upper case having the mounting groove,
Further comprising a second sealing member which is provided between the other side of the fixed block and one side of the upper case where the mounting groove is formed and seals the inside of the fixing block with the outside. The method according to claim 1,
Further comprising a display unit for visually providing the user with the temperature and pressure of the detected gas and the corrected actual flow rate. The method according to claim 1,
Wherein the sensor unit is an integrated sensor capable of simultaneously measuring temperature and pressure of gas flowing through the gas inlet.
KR1020160007966A 2016-01-22 2016-01-22 Gas-meter having fuction of compensating temperature and pressure KR101810976B1 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102298952B1 (en) * 2020-06-29 2021-09-08 (주)바른기술시스템 Wireless remote meter reading system and control method using active reed sensor
CN113624928A (en) * 2021-10-09 2021-11-09 南通科能监测技术有限公司 Building material gas emission quality detection device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102298952B1 (en) * 2020-06-29 2021-09-08 (주)바른기술시스템 Wireless remote meter reading system and control method using active reed sensor
CN113624928A (en) * 2021-10-09 2021-11-09 南通科能监测技术有限公司 Building material gas emission quality detection device
CN113624928B (en) * 2021-10-09 2021-12-07 南通科能监测技术有限公司 Building material gas emission quality detection device

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