KR20140142457A - Apparatus for mesuring velocity of projectile - Google Patents

Apparatus for mesuring velocity of projectile Download PDF

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Publication number
KR20140142457A
KR20140142457A KR1020130063824A KR20130063824A KR20140142457A KR 20140142457 A KR20140142457 A KR 20140142457A KR 1020130063824 A KR1020130063824 A KR 1020130063824A KR 20130063824 A KR20130063824 A KR 20130063824A KR 20140142457 A KR20140142457 A KR 20140142457A
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KR
South Korea
Prior art keywords
projectile
speed
measuring
current
winding
Prior art date
Application number
KR1020130063824A
Other languages
Korean (ko)
Inventor
전홍규
박찬경
김명룡
백승구
Original Assignee
한국철도기술연구원
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 한국철도기술연구원 filed Critical 한국철도기술연구원
Priority to KR1020130063824A priority Critical patent/KR20140142457A/en
Publication of KR20140142457A publication Critical patent/KR20140142457A/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B12/00—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material
    • F42B12/02—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
    • F42B12/36—Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for dispensing materials; for producing chemical or physical reaction; for signalling ; for transmitting information
    • F42B12/367—Projectiles fragmenting upon impact without the use of explosives, the fragments creating a wounding or lethal effect
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B30/00—Projectiles or missiles, not otherwise provided for, characterised by the ammunition class or type, e.g. by the launching apparatus or weapon used
    • F42B30/02—Bullets
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P1/00—Details of instruments
    • G01P1/02—Housings
    • G01P1/026—Housings for speed measuring devices, e.g. pulse generator
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42—Devices characterised by the use of electric or magnetic means
    • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
    • G01P3/46—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage
    • G01P3/465—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring amplitude of generated current or voltage by using dynamo-electro tachometers or electric generator

Abstract

The present invention relates to a launch vehicle speed measuring device.
For example, a permanent magnet installed on the projectile; A launching tube for mounting and launching the projectile; A winding part provided outside the launch tube; A current measuring unit electrically connected to the winding unit and measuring a current flowing through the winding unit when the projectile passes through the winding unit; And a speed measuring unit for measuring a speed of the projectile using the current information measured through the current measuring unit.
According to the present invention, it is possible to provide an apparatus for measuring the speed of a launch vehicle, which can measure the speed of the launch vehicle in a non-contact and non-strained manner to more accurately measure the speed of the launch vehicle and minimize the length of the launch pipe.

Description

[0001] APPARATUS FOR MESURING VELOCITY OF PROJECTILE [0002]

The present invention relates to a launch vehicle speed measuring device.

1 is a diagram showing a configuration of a conventional projectile speed measuring apparatus 100. As shown in FIG.

1, a conventional launch vehicle speed measurement apparatus 100 includes a launch pipe 110 for loading and launching a projectile 10 and a speed measurement unit 120 for measuring a speed of the projectile 10 can do.

1, the conventional speed measuring unit 120 is installed to measure the speed of the projectile 10 after the projectile 10 exits the launch tube 110 in order to measure the speed of the projectile 10 A sensor for measuring the speed of the projectile 10 in addition to the length of the launch tube 110, and is further attached to the launching port side.

In such a configuration, not only the total length of the launch tube 110 is long, but also an impact caused by the projectile 10 may occur, so that it is difficult to accurately measure the projectile body speed.

The present invention provides an apparatus for measuring the speed of a launch vehicle, which can measure the speed of the launch vehicle in a non-contact and non-strained manner to more accurately measure the speed of the launch vehicle and minimize the length of the launch pipe.

According to an embodiment of the present invention, there is provided an apparatus for measuring a vehicle body speed, comprising: a permanent magnet installed on the projectile; A launching tube for mounting and launching the projectile; A winding part provided outside the launch tube; A current measuring unit electrically connected to the winding unit and measuring a current flowing through the winding unit; And a speed measuring unit for measuring the speed of the projectile using the current information measured through the current measuring unit.

In addition, the winding part may be installed in a certain section of the outer wall of the tube.

The speed measuring unit may measure the speed of the projectile based on the amplitude and period of the current measured through the current measuring unit when the projectile passes through the winding unit.

According to another aspect of the present invention, there is provided an apparatus for measuring a vehicle body speed, comprising: a permanent magnet installed in the projectile; A launching tube for mounting and launching the projectile; An adapter provided with a winding surrounding the outside of a certain section of the launch tube; A current measuring unit electrically connected to the adapter and measuring a current flowing through the winding; And a speed measuring unit for measuring the speed of the projectile using current information measured through the current measuring unit.

In addition, the adapter may be installed in a certain section outside the tube.

In addition, the adapter may be detachably attached to the launch tube in a non-contact manner.

The speed measuring unit may measure the speed of the projectile based on the amplitude and the period of the current measured through the current measuring unit when the projectile passes through the adapter.

According to another aspect of the present invention, there is provided an apparatus for measuring a vehicle body velocity, comprising: a permanent magnet installed on the projectile; A launching tube for mounting and launching the projectile; And a speed measuring unit for measuring a speed of the projectile based on the amplitude and the cycle of the measured current when the projectile passes through a certain section of the launch tube, And a measurement unit.

According to the present invention, it is possible to provide an apparatus for measuring the speed of a launch vehicle, which can measure the speed of the launch vehicle in a non-contact and non-strained manner to more accurately measure the speed of the launch vehicle and minimize the length of the launch pipe.

1 is a view showing a configuration of a conventional projectile speed measuring apparatus.
FIG. 2 is a view illustrating a configuration of a vehicle speed measuring apparatus according to an embodiment of the present invention.
3 and 4 are views for explaining a method of measuring a launch vehicle speed of a vehicle speed measuring apparatus according to an embodiment of the present invention.
5 is a diagram illustrating a configuration of a vehicle speed measuring apparatus according to another embodiment of the present invention.
6 and 7 are views for explaining a method of measuring a launch vehicle speed of an apparatus for measuring a vehicle body speed according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, so that those skilled in the art can easily carry out the present invention.

Hereinafter, a configuration of a vehicle speed measuring apparatus according to an embodiment of the present invention will be described.

2 is a diagram illustrating a configuration of an apparatus 200 for measuring vehicle speed according to an embodiment of the present invention.

2, an apparatus 200 for measuring vehicle speed of a vehicle according to an embodiment of the present invention includes a permanent magnet 210, a launching tube 220, a winding unit 230, a current measuring unit 240, (250).

The permanent magnet 210 may be installed in the projectile 20 to move with the projectile 20. Preferably, the permanent magnet 210 is inserted into the projectile 20 so as not to be damaged when the projectile 20 moves along the inner tube of the launch tube 110.

The launch tube 220 can mount the projectile 20 and is configured to launch the mounted projectile 20.

The winding part 230 may be installed outside the launch tube 220. More specifically, the winding unit 230 may be installed in a form in which the wire is wound on the outer wall of the tube pipe 220 for a predetermined interval.

The current measuring unit 240 is electrically connected to the winding unit 230 and is capable of measuring a current flowing in the winding unit 230. When the projectile 20 passes through the winding part 230, an induced current flows through the winding part 230 by the permanent magnet 210 installed on the projectile 20, and the current measuring part 240 measures the induced current Can be obtained.

The speed measuring unit 250 may measure the speed of the projectile 20 based on the information about the amplitude and period of the induced current obtained through the current measuring unit 240.

Hereinafter, a method of measuring the speed of the vehicle speed measuring apparatus according to an embodiment of the present invention will be described.

FIGS. 3 and 4 are views for explaining a method of measuring the launch vehicle speed of the launch vehicle speed measuring apparatus 200 according to an embodiment of the present invention.

2, no induction current is generated before the projectile 20 passes the winding part 230, so that no current is sensed through the current measurement part 240. As shown in FIG.

Then, as shown in FIG. 3, the projectile 20 is fired and an induction current flows through the winding part 230 due to the electromagnetic induction phenomenon as it passes through the winding part 230. At this time, the current measuring unit 240 measures the current flowing in the winding unit 230, and the measured current information is transmitted to the speed measuring unit 250.

Thereafter, as shown in FIG. 4, no current is sensed through the current measuring unit 240 since no induction current is generated after the projectile 240 passes the winding unit 230.

Faraday's Law (

Figure pat00001
, here
Figure pat00002
Is the magnetic flux,
Figure pat00003
The dt decreases as the speed of the projectile 20 increases as the permanent magnet 210 inserted into the projectile 20 passes through the winding portion 230. The smaller the dt is,
Figure pat00004
The larger the amplitude of the induced current flowing in the winding section 230 is. Also, in this case, since the time for the permanent magnet 210 to pass through the winding part 230 is short, the period of the induction current is reduced.

Thus, the amplitude and period of the induction current are changed according to the speed at which the projectile 20 passes through the winding part 230. The speed measurement part 250 measures the amplitude and period of the induction current, The speed of the motor 20 can be calculated.

Hereinafter, a configuration of a vehicle speed measuring apparatus according to another embodiment of the present invention will be described.

5 is a diagram illustrating a configuration of an apparatus 500 for measuring vehicle speed according to another embodiment of the present invention.

5, an apparatus 500 for measuring a vehicle body speed according to an embodiment of the present invention includes a permanent magnet 510, a launching tube 520, an adapter 530, a current measuring unit 540, 550).

The permanent magnet 510 may be installed in the projectile 50 to move with the projectile 50. [ The permanent magnet 510 is preferably inserted into the projectile 50 so as not to be damaged when the projectile 50 moves along the inner tube of the launch tube 510.

The launch tube 520 can mount the projectile 50 and is configured to launch the mounted projectile 50.

The adapter 530 surrounds the outside of the launch tube 520, and a winding 531 may be installed therein. More specifically, the adapter 530 may be installed to surround a certain section of the launch tube 520. Thus, when the adapter 530 is coupled to the launch tube 520, the winding 531 is positioned to surround a certain section outside the launch tube 520. Also, the adapter 530 may be coupled at a predetermined interval, not in direct contact with the outer wall of the launch tube 520. In this manner, the adapter 530 is coupled to the launch tube in a non-contact manner, so that it can be combined with the launch tubes of various sizes.

The current measuring unit 540 is electrically connected to the winding 531 of the adapter 530 and can measure the current flowing through the adapter 530. [ When the projectile 50 passes through the winding 531, the induced current flows through the adapter 530 by the permanent magnet 510 installed in the projectile 50. The current measurement unit 540 measures the amplitude of the induced current And information on the period can be obtained.

The speed measuring unit 550 may measure the speed of the projectile 50 based on the information about the amplitude and the period of the induced current obtained through the current measuring unit 540.

Hereinafter, a method of measuring the speed of the vehicle speed measuring apparatus according to an embodiment of the present invention will be described.

FIGS. 6 and 7 are views for explaining a method of measuring the launch vehicle speed of the launch vehicle speed measuring apparatus 500 according to an embodiment of the present invention.

First, as shown in Fig. 5, no induction current is generated before the projectile 50 passes the adapter 530, so no current is sensed through the current measurement unit 540. [

6, an induction current flows through the winding 531 of the adapter 530 by the electromagnetic induction phenomenon as soon as the projectile 50 passes through the adapter 530 as shown in FIG. At this time, the current measuring unit 540 measures the current flowing through the winding 531 of the adapter 530, and the measured current information is transmitted to the speed measuring unit 550.

Thereafter, as shown in FIG. 7, no current is sensed through the current measuring unit 540 since no induction current is generated after the projectile 540 passes the adapter 530.

Faraday's Law (

Figure pat00005
, here
Figure pat00006
Is the magnetic flux,
Figure pat00007
The dt decreases as the speed of the projectile 50 increases and the dt decreases as the speed of the projectile 50 increases as the permanent magnet 510 inserted into the projectile 50 passes through the winding 531 of the adapter 530 Electromotive force (
Figure pat00008
The amplitude of the induced current flowing in the adapter 530 becomes larger. Also, in this case, since the time for the permanent magnet 510 to pass through the adapter 530 is short, the period of the induced current is reduced.

Thus, the amplitude and period of the induction current are changed according to the speed at which the projectile 50 passes through the adapter 530, and the velocity measurement unit 550 measures the amplitude of the induction current and the period 50) can be calculated.

According to the embodiment of the present invention, it is possible to perform the non-contact method by measuring the speed of the projectile passing through the inside of the launch tube from the outside, and the speed measuring means is not installed at the outlet side of the launch tube, It is possible to minimize the impact caused by the projectile and to implement the non-deforming method. Thus, more stable and accurate measurement of the speed of the launch vehicle is possible.

In addition, unlike the prior art, there is no need to extend the length of the tube, so that the length of the tube can be kept to a minimum.

In addition, since the winding is installed only in a certain section outside the tube, and the change of the induced current depends on whether the winding passes or not, it is easier to grasp the movement of the projectile inside the tube.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. It is.

20, 50: projectile
100, 500: Vehicle speed measuring device
210, 510: permanent magnet
220, 520:
230:
530: Adapter
531: Winding
240, 540: current measuring unit
250, 550: speed measuring unit

Claims (8)

A device for measuring the speed of a projectile,
A permanent magnet installed on the projectile;
A launching tube for mounting and launching the projectile;
A winding part provided outside the launch tube;
A current measuring unit electrically connected to the winding unit and measuring a current flowing through the winding unit; And
And a speed measuring unit for measuring a speed of the projectile using the current information measured through the current measuring unit. The method according to claim 1,
Wherein the winding unit is installed in a predetermined section of the outer wall of the launch tube. The method according to claim 1,
Wherein the speed measuring unit measures the speed of the projectile based on the amplitude and period of the current measured through the current measuring unit when the projectile passes through the winding unit. A device for measuring the speed of a projectile,
A permanent magnet installed on the projectile;
A launching tube for mounting and launching the projectile;
An adapter provided with a winding surrounding the outside of a certain section of the launch tube;
A current measuring unit electrically connected to the adapter and measuring a current flowing through the winding; And
And a speed measuring unit for measuring a speed of the projectile using current information measured through the current measuring unit. 5. The method of claim 4,
Wherein the adapter is installed in a predetermined section outside the launch tube. 5. The method of claim 4,
Wherein the adapter is detachably attached to the launch tube in a non-contact manner. 5. The method of claim 4,
Wherein the velocity measuring unit measures the velocity of the projectile based on the amplitude and the period of the current measured through the current measuring unit when the projectile passes through the adapter. A device for measuring the speed of a projectile,
A permanent magnet installed on the projectile;
A launching tube for mounting and launching the projectile; And
A speed measuring unit for measuring a speed of the projectile based on an amplitude and a cycle of the measured current when the projectile passes through a certain section of the launch tube, And a controller for controlling the speed of the vehicle.
KR1020130063824A 2013-06-04 2013-06-04 Apparatus for mesuring velocity of projectile KR20140142457A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180040845A (en) * 2016-10-13 2018-04-23 김석현 Electromagnet intensity measuring instrument
KR20180041336A (en) * 2016-10-14 2018-04-24 대구대학교 산학협력단 Faraday roller coaster for electromagnetic induction phenomenon

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20180040845A (en) * 2016-10-13 2018-04-23 김석현 Electromagnet intensity measuring instrument
KR20180041336A (en) * 2016-10-14 2018-04-24 대구대학교 산학협력단 Faraday roller coaster for electromagnetic induction phenomenon

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