WO2006046798A1 - Electronic bourdon tube pressure gauge - Google Patents
Electronic bourdon tube pressure gauge Download PDFInfo
- Publication number
- WO2006046798A1 WO2006046798A1 PCT/KR2005/001834 KR2005001834W WO2006046798A1 WO 2006046798 A1 WO2006046798 A1 WO 2006046798A1 KR 2005001834 W KR2005001834 W KR 2005001834W WO 2006046798 A1 WO2006046798 A1 WO 2006046798A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- variation
- bourdon tube
- converting
- bourdon
- pressure gauge
- Prior art date
Links
- 238000001514 detection method Methods 0.000 claims abstract description 51
- 230000006698 induction Effects 0.000 claims description 17
- 238000010276 construction Methods 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L7/00—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements
- G01L7/02—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges
- G01L7/04—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges
- G01L7/043—Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements in the form of elastically-deformable gauges in the form of flexible, deformable tubes, e.g. Bourdon gauges with mechanical transmitting or indicating means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0026—Transmitting or indicating the displacement of flexible, deformable tubes by electric, electromechanical, magnetic or electromagnetic means
- G01L9/0029—Transmitting or indicating the displacement of flexible, deformable tubes by electric, electromechanical, magnetic or electromagnetic means using variations in inductance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0026—Transmitting or indicating the displacement of flexible, deformable tubes by electric, electromechanical, magnetic or electromagnetic means
- G01L9/0032—Transmitting or indicating the displacement of flexible, deformable tubes by electric, electromechanical, magnetic or electromagnetic means using photoelectric means
Definitions
- the present invention relates to an electronic bourdon tube pressure gauge, and in particular to an electronic bourdon tube pressure gauge in which a pressure value can be easily measured using a tube detection unit capable of converting a variation of a bourdon tube as an electronic signal and outputting the same and can be inputted into other units and can be used for other purposes in a pressure gauge in which a variation of a spiral tube expanded as pressure is increased is converted into a rotational energy for thereby being visually indicated using scales and indicating needle.
- a conventional pressure gauge includes a bourdon tube that is formed in a spiral shape and is designed to expand by a pressure applied thereto, a variation gear that converts a variation of the bourdon tube into a rotational movement, and a needle shaft gear that is rotated by the variation gear and has an indicating needle for indicating scales.
- a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there is provided a tube detection unit for converting a variation of a bourdon tube 110 based on a change in pressure value into an electrical pressure signal and outputting the same.
- Figure 1 is a perspective view illustrating a conventional bourdon tube pressure gauge
- Figure 2 is a perspective view illustrating the major elements of a conventional bourdon tube pressure gauge
- Figure 3 is a disassembled perspective view illustrating the major elements according to an embodiment of the present invention
- Figure 4 is a front perspective view illustrating an electronic bourdon tube pressure gauge according to an embodiment of the present invention
- Figure 5 is a rear view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present invention
- Figure 6 is a rear perspective view illustrating an electronic bourdon tube pressure gauge according to another embodiment of the present invention
- Figure 7 is a rear view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present invention
- Figure 8 is a rear view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present invention
- Figure 8 is a rear view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present
- a tube detection unit for converting a variation of the bourdon tube 110 based on a change in the input value into an electric pressure signal.
- a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a detection variable resistor 211 that is inserted and engaged with a driving engaging unit 141 protruded from a rear end of the needle shaft gear 140 for converting a rotational degree of the needle shaft gear 140 into an electrical signal of an electrical resistance value; and a resistance computation output unit 212 for converting the value detected by the detection variable resistor 211 into an electrical input signal.
- the resistance computation output unit 212 converts the value into an electrical pressure signal that can be directly inputted into other devices.
- a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a detection magnet 221 installed at one side of a rear surface of the indicating needle 130 corresponding to the scale 150 of the scale plate 160 having scales 150; a magnet detector 222 installed at the other side of the same; and an indication computation output unit 223 for converting a needle indication value inputted through the magnet detector 222 into an electrical pressure signal.
- the magnet detector 222 detects the position of the needle 130 engaged at the needle shaft gear 140 rotated by the bourdon tube 11- contracted and expanded based on the change in pressure, and the indication computation output unit 223 converts the detection value into an electrical input signal that can be directly inputted into other devices.
- a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150
- a reflection plate 231 installed at a rear end of the needle shaft gear 140 and having a spiral outer portion
- a light receiving detector 232 that receives a reflection intensity of a detection light from the reflected light after a detection light is outputted to the reflection plate 231
- a light computation output unit 233 for converting a reflection intensity of the detection light based on a pressure value received through the light receiving detector 232 into an electrical signal.
- the light computation output unit 233 converts the detection intensity of the light into an electrical pressure signal that can be inputted into other devices.
- a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150
- a magnetic rotation plate 241 that is installed at a rear end of the needle shaft gear 140 and is uniformly divided into two parts of N-pole and S-pole
- a magnetic field detection sensor 242 that is installed in response to the magnetic rotation plate 241 and detects a change in magnetic field during a change of polarities changed based on the rotation and outputs a certain signal
- a magnetic field computation output unit 243 for converting a changed value in magnetic field based on the pressure value inputted through the magnetic field detection sensor 242 into an electrical pressure signal.
- the magnetic field computation output unit 243 converts the detection value of the magnetic field detected by the magnetic field detection sensor 242 into an electrical pressure signal that can be directly inputted into another device.
- a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a plurality of polygonal electrification surface members 151 that are provided at a rear end of the needle shaft gear 140 and is formed of polygonal surfaces for thereby forming a plurality of electrification surfaces; a surface electrification detection unit 252 that is installed at a certain distance from the electrification surface members 251 for detecting an electrification electric charge variation with respect to the rotating electrification surface members; and a surface electrification computation output unit 253 for converting an electrification change degree based on the pressure value inputted through the surface electrification detection unit 252 into an electrical pressure signal.
- the surface electrification computation output unit 253 converts the detection value of the surface electrification electric charge amount detected by the surface electrification detector 252 into an electrical pressure signal that can be directly inputted into other devices.
- a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150
- an electrification bar 261 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation
- a bar elec ⁇ trification detector 262 that is installed near the electrification bar 261 for detecting a decrease of the electrification electric charge intensity based on distance from the elec ⁇ trification bar 261
- a bar electrification computation output unit 263 for converting a decrease value of the electric charge intensity inputted from the bar electrification detector 262 into an electrical pressure signal.
- the bar electrification detector 262 detects the changed intensity.
- the bar electrification computation output unit 263 converts the bar electrification electric charge intensity detected by the bar electrification detector 262 into an electrical pressure signal that can be inputted into other devices.
- a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150
- a laser detection bar 171 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation
- a laser transceiver 272 for detecting a variation based on a time difference after outputting laser to a laser detection bar 271 and receiving reflection
- a laser computation output unit 273 for converting a variation detection value detected by the laser transceiver 272 into an electrical pressure signal.
- the laser detection bar 272 is length-varied by the bourdon tube 110 contracted and expanded based on the change in pressure, when a detection distance is changed, the laser transceiver 272 detects the distance change bas ed on a receiving declination with respect to the transmission of laser, and the laser computation output unit 273 converts the detection distance detected by the laser transceiver 272 into an electrical pressure signal that can be directly inputted into other devices.
- a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150
- an induction rod 282 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation
- an induction detection coil 282 for detecting an induction electromotive force based on the distance from the induction bar 281
- an induction magnetic computation output unit 283 for converting an induction magnetic field detected by the induction detection coil 282 into an electrical pressure signal.
- the induction bar 281 is length- varied by the bourdon tube 110, when a magnetic change is detected in the induction detection coil 282, the induction magnetic computation output unit 283 converts into an electrical pressure signal that can be directly input
- a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150
- a variation magnetic bar 291 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation and is made of a magnetic member
- a variation magnetic sensor 292 for detecting a decrease of the magnetic force based on the distance from the variation magnetic bar 291
- a variation magnetic computation output unit 293 for converting a magnetic variation detection value detected by the variation magnetic sensor 292 into an electrical pressure signal.
- the variation magnetic computation output unit 293 converts into an electrical pressure signal that can be directly inputted into other devices.
- the detection of the variation of the bourdon tube is performed using a plurality of tube detection units through the detection of the straight line movement using the needle shaft gear 140, the scales 150 and the bourdon tube 110.
- the detected pressure value is converted into an electric pressure signal and is inputted into a certain electronic device that needs an input of an electrical pressure value, so that various devices can be effectively controlled for thereby achieving an accurate control.
- the pressure values can be visually displayed using the indicating needle and scales by providing the tube detection units capable of detecting the variation of the bourdon tube when implementing the bourdon pressure gauge, and the detected pressure value is converted into an electrical pressure signal that can be directly inputted into other devices, so that the remote and accurate controls of various devices can be implemented.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
An electronic bourdon tube pressure gauge is disclosed, in which a pressure value indcated by an indicating needle of a bourdon tube pressure gauge is outputted as an electrical signal for the use in other devices. In a bourdon pressure gauge formed of a bourdon tube (110) that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear (120) for converting a variation of the bourdon tube (110) into a rotational movement; and a needle shaft gear (140) that has an indicating needle (130) for indicating scales (150), there is further provided a tube detection unit for converting a variation of a bourdon tube (110) based on a change in pressure value into an electrical pressure signal and outputting the same.
Description
Description
ELECTRONIC BOURDON TUBE PRESSURE GAUGE
Technical Field
[1] The present invention relates to an electronic bourdon tube pressure gauge, and in particular to an electronic bourdon tube pressure gauge in which a pressure value can be easily measured using a tube detection unit capable of converting a variation of a bourdon tube as an electronic signal and outputting the same and can be inputted into other units and can be used for other purposes in a pressure gauge in which a variation of a spiral tube expanded as pressure is increased is converted into a rotational energy for thereby being visually indicated using scales and indicating needle.
Background Art
[2] Generally, a conventional pressure gauge includes a bourdon tube that is formed in a spiral shape and is designed to expand by a pressure applied thereto, a variation gear that converts a variation of the bourdon tube into a rotational movement, and a needle shaft gear that is rotated by the variation gear and has an indicating needle for indicating scales. Disclosure of Invention Technical Problem
[3] In the thusly constituted conventional bourdon tube pressure gauge the needle shaft gear having an indicating needle fixed thereat is rotated by the variation gear as the variation of the bourdon tube expanded or contracted based on pressure is changed, so that the indicating needle is rotated and indicates a corresponding pressure scale for thereby visually indicating the pressure.
[4] In the case that a pressure indication value is measured using a pressure gauge and is inputted into a certain device for the use in other devices, a user should physically read the scales of the pressure gauge and should input into other devices or an expensive device is additionally needed. Technical Solution
[5] Accordingly, it is an object of the present invention to overcome the above- described problems encountered in the conventional art.
[6] It is another object of the present invention to provide an electronic bourdon tube pressure gauge in which a pressure value indicated by an indicating needle of a bourdon tube pressure gauge is outputted as an electrical signal for the use in other devices.
[7] To achieve the above objects, in a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a
variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there is provided a tube detection unit for converting a variation of a bourdon tube 110 based on a change in pressure value into an electrical pressure signal and outputting the same.
Brief Description of the Drawings
[8] The present invention will become better understood with reference to the ac¬ companying drawings which are given only by way of illustration and thus are not limitative of the present invention, wherein; [9] Figure 1 is a perspective view illustrating a conventional bourdon tube pressure gauge; [10] Figure 2 is a perspective view illustrating the major elements of a conventional bourdon tube pressure gauge; [11] Figure 3 is a disassembled perspective view illustrating the major elements according to an embodiment of the present invention; [12] Figure 4 is a front perspective view illustrating an electronic bourdon tube pressure gauge according to an embodiment of the present invention; [13] Figure 5 is a rear view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present invention; [14] Figure 6 is a rear perspective view illustrating an electronic bourdon tube pressure gauge according to another embodiment of the present invention; [15] Figure 7 is a rear view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present invention; [16] Figure 8 is a front view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present invention; [17] Figure 9 is a front view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present invention; [18] Figure 10 is a front view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present invention; and [19] Figure 11 is a front view illustrating the major elements of an electronic bourdon tube pressure gauge according to another embodiment of the present invention.
Mode for the Invention [20] The preferred embodiments of the present invention will be described with reference to the accompanying drawings. [21] In the present invention, there are basically provided a spiral shaped bourdon tube
110 for detecting a variation of a bourdon tube and outputting as an electrical signal wherein the bourdon tube 110 is expanded by pressure applied thereto; a variation gear
120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that is rotated by the variation gear 120 and has an indicating needle 130 for indicating the scale 150. There is further provided a tube detection unit for converting a variation of the bourdon tube 110 based on a change in the input value into an electric pressure signal.
[22] The preferred embodiments of the present invention will be further described.
[23] As shown in Figure 3, in an embodiment of the present invention, in the above con¬ struction that there are provided a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a detection variable resistor 211 that is inserted and engaged with a driving engaging unit 141 protruded from a rear end of the needle shaft gear 140 for converting a rotational degree of the needle shaft gear 140 into an electrical signal of an electrical resistance value; and a resistance computation output unit 212 for converting the value detected by the detection variable resistor 211 into an electrical input signal. With the above construction, when the value of the detection variable resistor 212 is changed by the needle shaft gear 140 rotated by the bourdon tube 110 contracted and expanded based on the change in pressure, the resistance computation output unit 212 converts the value into an electrical pressure signal that can be directly inputted into other devices.
[24] As shown in Figure 4, in another embodiment of the present invention, in the above construction that there are provided a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a detection magnet 221 installed at one side of a rear surface of the indicating needle 130 corresponding to the scale 150 of the scale plate 160 having scales 150; a magnet detector 222 installed at the other side of the same; and an indication computation output unit 223 for converting a needle indication value inputted through the magnet detector 222 into an electrical pressure signal. The magnet detector 222 detects the position of the needle 130 engaged at the needle shaft gear 140 rotated by the bourdon tube 11- contracted and expanded based on the change in pressure, and the indication computation output unit 223 converts the detection value into an electrical input signal that can be directly inputted into other devices.
[25] As shown in Figure 5, in another embodiment of the present invention, in the above construction that there are provided a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a
variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a reflection plate 231 installed at a rear end of the needle shaft gear 140 and having a spiral outer portion; a light receiving detector 232 that receives a reflection intensity of a detection light from the reflected light after a detection light is outputted to the reflection plate 231; and a light computation output unit 233 for converting a reflection intensity of the detection light based on a pressure value received through the light receiving detector 232 into an electrical signal. As the reflection plate 231 is rotated by the needle shaft gear 140 rotated by the bourdon tube 110 contracted and expanded based on the change in pressure, when the intensity of the light outputted by the light receiving detector 232 is changed, the light computation output unit 233 converts the detection intensity of the light into an electrical pressure signal that can be inputted into other devices.
[26] As shown in Figure 6, in another embodiment of the present invention, in the above construction that there are provided a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a magnetic rotation plate 241 that is installed at a rear end of the needle shaft gear 140 and is uniformly divided into two parts of N-pole and S-pole; a magnetic field detection sensor 242 that is installed in response to the magnetic rotation plate 241 and detects a change in magnetic field during a change of polarities changed based on the rotation and outputs a certain signal; and a magnetic field computation output unit 243 for converting a changed value in magnetic field based on the pressure value inputted through the magnetic field detection sensor 242 into an electrical pressure signal. As the magnetic rotation plate 241 is rotated by the needle shaft gear 140 rotated by the bourdon tube 110 contracted and expanded based on the change in pressure, when the magnetic field is changed, the magnetic field detection sensor 242 detects the changed magnetic field. The magnetic field computation output unit 243 converts the detection value of the magnetic field detected by the magnetic field detection sensor 242 into an electrical pressure signal that can be directly inputted into another device.
[27] As shown in Figure 7, in another embodiment of the present invention, in the above construction that there are provided a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a plurality of polygonal electrification surface members 151 that are provided at a rear end of the needle shaft gear 140 and is formed of polygonal surfaces for
thereby forming a plurality of electrification surfaces; a surface electrification detection unit 252 that is installed at a certain distance from the electrification surface members 251 for detecting an electrification electric charge variation with respect to the rotating electrification surface members; and a surface electrification computation output unit 253 for converting an electrification change degree based on the pressure value inputted through the surface electrification detection unit 252 into an electrical pressure signal. As the electrification surface member 251 is rotated by the needle shaft gear 140 rotated by the bourdon tube 110 contracted and expanded based on the change in pressure, when the surface electrification intensity is changed, the surface electrification detector 252 detects the changed intensity. The surface electrification computation output unit 253 converts the detection value of the surface electrification electric charge amount detected by the surface electrification detector 252 into an electrical pressure signal that can be directly inputted into other devices.
[28] As shown in Figure 8, in another embodiment of the present invention, in the above construction that there are provided a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided an electrification bar 261 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation; a bar elec¬ trification detector 262 that is installed near the electrification bar 261 for detecting a decrease of the electrification electric charge intensity based on distance from the elec¬ trification bar 261; and a bar electrification computation output unit 263 for converting a decrease value of the electric charge intensity inputted from the bar electrification detector 262 into an electrical pressure signal. As the electrification bar 262 is length- changed by the bourdon tube 110 that is contracted and expanded based on the change in pressure, when the electric charge intensity is changed, the bar electrification detector 262 detects the changed intensity. The bar electrification computation output unit 263 converts the bar electrification electric charge intensity detected by the bar electrification detector 262 into an electrical pressure signal that can be inputted into other devices.
[29] As shown in Figure 9, in another embodiment of the present invention, in the above construction that there are provided a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a laser detection bar 171 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation; a laser transceiver 272
for detecting a variation based on a time difference after outputting laser to a laser detection bar 271 and receiving reflection; and a laser computation output unit 273 for converting a variation detection value detected by the laser transceiver 272 into an electrical pressure signal. As the laser detection bar 272 is length-varied by the bourdon tube 110 contracted and expanded based on the change in pressure, when a detection distance is changed, the laser transceiver 272 detects the distance change bas ed on a receiving declination with respect to the transmission of laser, and the laser computation output unit 273 converts the detection distance detected by the laser transceiver 272 into an electrical pressure signal that can be directly inputted into other devices.
[30] As shown in Figure 10, in another embodiment of the present invention, in the above construction that there are provided a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided an induction rod 282 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation; an induction detection coil 282 for detecting an induction electromotive force based on the distance from the induction bar 281; and an induction magnetic computation output unit 283 for converting an induction magnetic field detected by the induction detection coil 282 into an electrical pressure signal. As the induction bar 281 is length- varied by the bourdon tube 110, when a magnetic change is detected in the induction detection coil 282, the induction magnetic computation output unit 283 converts into an electrical pressure signal that can be directly inputted into other devices.
[31] As shown in Figure 11, in another embodiment of the present invention, in the above construction that there are provided a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, there are further provided a variation magnetic bar 291 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation and is made of a magnetic member; a variation magnetic sensor 292 for detecting a decrease of the magnetic force based on the distance from the variation magnetic bar 291; and a variation magnetic computation output unit 293 for converting a magnetic variation detection value detected by the variation magnetic sensor 292 into an electrical pressure signal. As the variation magnetic bar 292 is length-varied by the bourdon tube 110 contracted and expanded based on the variation, when the variation magnetic sensor 292 detects the decrease of magnetism, the variation magnetic computation
output unit 293 converts into an electrical pressure signal that can be directly inputted into other devices.
[32] In the bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, the detection of the variation of the bourdon tube is performed using a plurality of tube detection units through the detection of the straight line movement using the needle shaft gear 140, the scales 150 and the bourdon tube 110. The detected pressure value is converted into an electric pressure signal and is inputted into a certain electronic device that needs an input of an electrical pressure value, so that various devices can be effectively controlled for thereby achieving an accurate control.
Industrial Applicability
[33] As described above, the pressure values can be visually displayed using the indicating needle and scales by providing the tube detection units capable of detecting the variation of the bourdon tube when implementing the bourdon pressure gauge, and the detected pressure value is converted into an electrical pressure signal that can be directly inputted into other devices, so that the remote and accurate controls of various devices can be implemented.
[34] As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described examples are not limited by any of the details of the foregoing de¬ scription, unless otherwise specified, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modi¬ fications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims
[1] In a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, an electronic bourdon tube pressure gauge, comprising: a detection variable resistor 211 that is inserted and engaged with a driving engaging unit 141 protruded from a rear end of the needle shaft gear 140 for converting a rotational degree of the needle shaft gear 140 into an electrical signal of an electrical resistance value; and a resistance computation output unit 212 for converting the value detected by the detection variable resistor 211 into an electrical input signal.
[2] In a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, an electronic bourdon tube pressure gauge, comprising: a detection magnet 221 installed at one side of a rear surface of the indicating needle 130 corresponding to the scale 150 of the scale plate 160 having scales
150; a magnet detector 222 installed at the other side of the same; and an indication computation output unit 223 for converting a needle indication value inputted through the magnet detector 222 into an electrical pressure signal.
[3] In a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, an electronic bourdon tube pressure gauge, comprising: a reflection plate 231 installed at a rear end of the needle shaft gear 140 and having a spiral outer portion; a light receiving detector 232 that receives a reflection intensity of a detection light from the reflected light after a detection light is outputted to the reflection plate 231 ; and a light computation output unit 233 for converting a reflection intensity of the detection light based on a pressure value received through the light receiving detector 232 into an electrical signal.
[4] In a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a
spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, an electronic bourdon tube pressure gauge, comprising: a magnetic rotation plate 241 that is installed at a rear end of the needle shaft gear 140 and is uniformly divided into two parts of N-pole and S-pole; a magnetic field detection sensor 242 that is installed in response to the magnetic rotation plate 241 and detects a change in magnetic field during a change of polarities changed based on the rotation and outputs a certain signal; and a magnetic field computation output unit 243 for converting a changed value in magnetic field based on the pressure value inputted through the magnetic field detection sensor 242 into an electrical pressure signal.
[5] In a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, an electronic bourdon tube pressure gauge, comprising: a plurality of polygonal electrification surface members 151 that are provided at a rear end of the needle shaft gear 140 and is formed of polygonal surfaces for thereby forming a plurality of electrification surfaces; a surface electrification detection unit 252 that is installed at a certain distance from the electrification surface members 251 for detecting an electrification electric charge variation with respect to the rotating electrification surface members; and a surface electrification computation output unit 253 for converting an elec¬ trification change degree based on the pressure value inputted through the surface electrification detection unit 252 into an electrical pressure signal.
[6] In a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, an electronic bourdon tube pressure gauge, comprising: an electrification bar 261 that is installed at an end portion of the bourdon tube
110 and is moved in a straight line shape based on the variation; a bar electrification detector 262 that is installed near the electrification bar 261 for detecting a decrease of the electrification electric charge intensity based on distance from the electrification bar 261; and a bar electrification computation output unit 263 for converting a decrease value
of the electric charge intensity inputted from the bar electrification detector 262 into an electrical pressure signal.
[7] In a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, an electronic bourdon tube pressure gauge, comprising: a laser detection bar 171 that is installed at an end portion of the bourdon tube
110 and is moved in a straight line shape based on the variation; a laser transceiver 272 for detecting a variation based on a time difference after outputting laser to a laser detection bar 271 and receiving reflection; and a laser computation output unit 273 for converting a variation detection value detected by the laser transceiver 272 into an electrical pressure signal.
[8] In a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, an electronic bourdon tube pressure gauge, comprising: an induction rod 282 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation; an induction detection coil 282 for detecting an induction electromotive force based on the distance from the induction bar 281 ; and an induction magnetic computation output unit 283 for converting an induction magnetic field detected by the induction detection coil 282 into an electrical pressure signal.
[9] In a bourdon pressure gauge formed of a bourdon tube 110 that is formed in a spiral shape and is expanded by pressure applied thereto; a variation gear 120 for converting a variation of the bourdon tube 110 into a rotational movement; and a needle shaft gear 140 that has an indicating needle 130 for indicating scales 150, an electronic bourdon tube pressure gauge, comprising: a variation magnetic bar 291 that is installed at an end portion of the bourdon tube 110 and is moved in a straight line shape based on the variation and is made of a magnetic member; a variation magnetic sensor 292 for detecting a decrease of the magnetic force based on the distance from the variation magnetic bar 291; and a variation magnetic computation output unit 293 for converting a magnetic variation detection value detected by the variation magnetic sensor 292 into an electrical pressure signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020040086196A KR100676715B1 (en) | 2004-10-27 | 2004-10-27 | An electronic pressure |
| KR10-2004-0086196 | 2004-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006046798A1 true WO2006046798A1 (en) | 2006-05-04 |
Family
ID=36228016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/KR2005/001834 WO2006046798A1 (en) | 2004-10-27 | 2005-06-15 | Electronic bourdon tube pressure gauge |
Country Status (2)
| Country | Link |
|---|---|
| KR (1) | KR100676715B1 (en) |
| WO (1) | WO2006046798A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8178357B2 (en) | 2007-07-26 | 2012-05-15 | The Regents Of The University Of California | Peroxide chemical sensor and sensing method |
| EP2327964A3 (en) * | 2009-11-28 | 2013-01-16 | FESTO AG & Co | Measuring apparatus |
| WO2016016912A1 (en) * | 2014-07-28 | 2016-02-04 | 旭産業株式会社 | Pressure gauge |
| CN115325259A (en) * | 2022-10-17 | 2022-11-11 | 山东省食品药品检验研究院 | Pressure detection equipment for gas-phase liquid nitrogen tank |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100862573B1 (en) * | 2006-05-15 | 2008-10-09 | 주식회사 메타켐 | An electronic pressure |
| KR102454938B1 (en) * | 2021-05-26 | 2022-10-17 | 스탠다드엔지니어링주식회사 | Bourdon tube pressure gauge |
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| US1986695A (en) * | 1932-04-14 | 1935-01-01 | Warner Louis Allen | Electrical governor |
| US2565434A (en) * | 1949-12-07 | 1951-08-21 | Donald O Kocmich | Electrical indicating device |
| US3992945A (en) * | 1975-06-05 | 1976-11-23 | American Chain & Cable Company, Inc. | Bourdon pressure gauge having direct-coupled electronic and visual readout |
| EP0203283A2 (en) * | 1985-04-04 | 1986-12-03 | Robert Bosch Gmbh | Bourdon tube pressure sensor |
| JPH0894465A (en) * | 1994-09-28 | 1996-04-12 | Takahashi Seisakusho:Kk | Bourdon-tube type vibration-proof measuring apparatus |
| JP2004294268A (en) * | 2003-03-27 | 2004-10-21 | Takahashi Seisakusho:Kk | Bourdon tube vibration-proof measuring instrument |
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| JPS62168442U (en) | 1986-04-16 | 1987-10-26 | ||
| JPS6317429U (en) * | 1986-07-15 | 1988-02-05 | ||
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| JPH03103685A (en) * | 1989-09-13 | 1991-04-30 | Tokimec Inc | 4-way 4-position electromagnetic pilot switching valve |
| US20040093952A1 (en) * | 2002-11-15 | 2004-05-20 | Spencer Eisenbarth | Electronic pressure transducer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1986695A (en) * | 1932-04-14 | 1935-01-01 | Warner Louis Allen | Electrical governor |
| US2565434A (en) * | 1949-12-07 | 1951-08-21 | Donald O Kocmich | Electrical indicating device |
| US3992945A (en) * | 1975-06-05 | 1976-11-23 | American Chain & Cable Company, Inc. | Bourdon pressure gauge having direct-coupled electronic and visual readout |
| EP0203283A2 (en) * | 1985-04-04 | 1986-12-03 | Robert Bosch Gmbh | Bourdon tube pressure sensor |
| JPH0894465A (en) * | 1994-09-28 | 1996-04-12 | Takahashi Seisakusho:Kk | Bourdon-tube type vibration-proof measuring apparatus |
| JP2004294268A (en) * | 2003-03-27 | 2004-10-21 | Takahashi Seisakusho:Kk | Bourdon tube vibration-proof measuring instrument |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8178357B2 (en) | 2007-07-26 | 2012-05-15 | The Regents Of The University Of California | Peroxide chemical sensor and sensing method |
| EP2327964A3 (en) * | 2009-11-28 | 2013-01-16 | FESTO AG & Co | Measuring apparatus |
| WO2016016912A1 (en) * | 2014-07-28 | 2016-02-04 | 旭産業株式会社 | Pressure gauge |
| JP5964976B2 (en) * | 2014-07-28 | 2016-08-03 | 旭産業株式会社 | Pressure gauge |
| EP3101401A4 (en) * | 2014-07-28 | 2017-03-15 | Asahi Industory Co. Ltd. | Pressure gauge |
| US9677965B2 (en) | 2014-07-28 | 2017-06-13 | Asahi Industry Co., Ltd. | Pressure gauge |
| CN115325259A (en) * | 2022-10-17 | 2022-11-11 | 山东省食品药品检验研究院 | Pressure detection equipment for gas-phase liquid nitrogen tank |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100676715B1 (en) | 2007-01-31 |
| KR20060037063A (en) | 2006-05-03 |
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