CN112414235B - 360-degree full-view-field scanning and detecting laser fuze device - Google Patents
360-degree full-view-field scanning and detecting laser fuze device Download PDFInfo
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- CN112414235B CN112414235B CN202011235996.6A CN202011235996A CN112414235B CN 112414235 B CN112414235 B CN 112414235B CN 202011235996 A CN202011235996 A CN 202011235996A CN 112414235 B CN112414235 B CN 112414235B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C13/00—Proximity fuzes; Fuzes for remote detonation
- F42C13/02—Proximity fuzes; Fuzes for remote detonation operated by intensity of light or similar radiation
- F42C13/023—Proximity fuzes; Fuzes for remote detonation operated by intensity of light or similar radiation using active distance measurement
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Abstract
The invention discloses a laser fuze device for 360-degree full-view-field scanning and detection, which comprises fuze columns which rotate by taking an axis as a center and advance along the axis direction, wherein 4 paths of transmitting and receiving modules are uniformly arranged in the circumferential direction of the fuze columns, and each path of transmitting and receiving module comprises a transmitting module and a receiving module; the transmitting module comprises two mutually perpendicular laser chips and is used for transmitting laser signals covering a 90-degree view field range; the receiving module is used for receiving the echo signals; and an included angle is formed between the optical axes of the transmitting module and the receiving module and the axis of the fuze column. The laser fuze device for 360-degree full-view scanning and detection can be loaded in a damage device to assist a main device to accurately find and strike a target in 360-degree dead-angle-free mode.
Description
Technical Field
The invention relates to a laser fuze device for 360-degree full-view-field scanning and detection, and belongs to the technical field of laser proximity fuze systems.
Background
With the transition of the traditional mechanization to the modern informatization, timely and rapid information acquisition can make the fight more initiative. The laser fuze is used as novel equipment, and can be compounded with an electric field and a magnetic field, so that the equipment system has various functions and strong combat capability. Compared with other fuses, the laser fuse has the advantages of good monochromaticity and good directivity, so the laser fuse has the advantages of strong anti-interference capability and strong environmental adaptability, and can still show good detection capability under complex environments such as cloudy and foggy conditions. And the semiconductor laser is directly driven by a power supply, so that the optical structure can be simplified, and the whole fuze system is compact and flexible.
The laser light source used by the fuze is generally a semiconductor laser light source, under the condition of higher duty ratio, the heat generated by the light source can cause unstable laser operation and even possibly damage, and in order to solve the heat problem, a high-heat-conductivity ceramic sheet is required to be adopted for heat dissipation. At present, the short-distance detection of the semiconductor laser with high repetition frequency, narrow pulse width and high average power is an effective means, the action distance of the proximity fuse is only a few meters, and the initiation signal is sent when the target approaches. Compared with fiber laser and solid laser light sources used by laser radars, the laser fuze has lower requirements on the power, the beam quality and the single-frequency characteristic of the laser light source, so that the semiconductor laser light source is a suitable and low-cost light source. The method comprises the steps of directly detecting echo signal light, collecting the echo signal light by a receiving optical system through a telescope beam shrinking system, improving signal to noise ratio by using an amplifier and a filter on circuit processing, and judging the threshold value of an electric signal or setting amplitude proportion to judge and collect the amplitude of the echo signal voltage.
Disclosure of Invention
The invention aims at: aiming at the problems, the invention provides a 360-degree full-view-field scanning and detecting laser fuze device which can be loaded in a damage device to assist a main device to search and hit a target accurately at 360 degrees without dead angles.
The technical scheme adopted by the invention is as follows:
a360-degree full-view-field scanning and detecting laser fuze device comprises a fuze column which rotates by taking an axis as a center and advances along the axis direction, wherein 4 paths of transmitting and receiving modules are uniformly arranged in the circumferential direction of the fuze column, and each path of transmitting and receiving module comprises a transmitting module and a receiving module;
the transmitting module comprises two mutually perpendicular laser chips and is used for transmitting laser signals covering a 90-degree view field range;
the receiving module is used for receiving the echo signals;
and an included angle is formed between the optical axes of the transmitting module and the receiving module and the axis of the fuze column.
In the invention, 4 paths of transmitting and receiving modules are arranged in the circumferential direction of the fuze column, the radian of an arc line between two adjacent paths of transmitting and receiving modules is 90 degrees, and two mutually perpendicular laser chips are arranged on the transmitting modules in each path of transmitting and receiving module so as to transmit laser signals covering the 90-degree view field range, and the 4 paths of transmitting and receiving modules can detect the target view field by 360 degrees, so that the full coverage of the view field is realized. Detecting and searching a hit target when the fuze column rotates forwards, loading a laser fuze device in a damage device, and assisting a main device to accurately search and hit the target 360 degrees without dead angles; the optical axes of the transmitting module and the receiving module are provided with an included angle with the axis of the fuze column, so that a certain angle is formed between the direction of the transmitted light and the advancing direction of the light source, and the transmitted light can be effectively detected to the front target.
Preferably, 4 groups of transmitting cavities and receiving cavities are uniformly arranged on the whole body of the fuze column.
In the above scheme, the transmitting module is arranged in the transmitting cavity, and the receiving module is arranged in the receiving cavity.
Preferably, the laser chip is a single-tube laser chip.
Preferably, the laser chip is a semiconductor laser chip.
Preferably, a collimating mirror is arranged in the fast axis direction of the laser chip, and an optical fiber array is arranged in the slow axis direction of the laser chip.
Preferably, the collimator lens is an aspherical collimator lens.
In the scheme, the fast axis of the laser chip is collimated by the collimating lens, and the slow axis direction is expanded and homogenized by the optical fiber array to cover the 90-degree view field.
Preferably, a tube shell is arranged in the transmitting module, a step for placing a laser chip and a glass window in the slow axis direction of the laser chip are arranged in the tube shell, and an optical fiber array is arranged on the front surface of the glass window.
In the scheme, the laser chip is arranged on the circuit board, and the circuit board is placed on the step; the transmitting module is provided with a tube shell cavity, the laser chip is integrated inside the tube shell, the tube shell is fixed in the tube shell cavity, and the transmitting module is fixed on the fuze column.
Preferably, the laser chip is arranged on the circuit board through a heat sink.
Preferably, the heat sink is a copper bar.
In the scheme, the laser chip is welded on the heat sink, the heat sink is arranged on the circuit board, the duty ratio of semiconductor laser emitted by the laser chip is low (about one ten thousandth), the heat generation quantity is small, and the heat can be directly exchanged through the heat sink without using a heat dissipation device, so that the volume of the emission module can be greatly reduced.
Preferably, the circuit board is a high thermal conductivity ceramic circuit board.
In the scheme, the heat energy generated by the circuit can be radiated by using the high-heat-conductivity ceramic.
Preferably, the included angle between the optical axis of the transmitting module and the axis of the fuze column is the same as the included angle between the optical axis of the receiving module and the axis of the fuze column.
In the scheme, the same included angle is more beneficial to the receiving module to receive the callback signal.
Preferably, the included angle between the optical axes of the transmitting module and the receiving module and the axis of the fuze column is 28-38 degrees.
In the scheme, the included angle between the optical axes of the transmitting module and the receiving module and the axis of the fuze column is 33.56 degrees.
In the scheme, when the included angle is 28-38 degrees, the effect of detecting the front target is good, and particularly, the optimal angle is selected at 33.56 degrees.
Preferably, the transmitting module and the receiving module are both provided with positioning parts matched with the radian of the fuze column.
In the above scheme, when the transmitting module and the receiving module are mounted on the fuze column, the positioning part is used for positioning and fixing.
Preferably, the receiving module is located in front of the transmitting direction of the transmitting module.
In the scheme, the receiving module is positioned in front of the transmitting direction of the transmitting module, so that the receiving of echo signals is facilitated.
Preferably, the receiving module is provided with a round hole for placing a lens and a filter of the beam shrinking telescope system.
In the above scheme, the receiving module collects the echo signal light by using a telescope beam shrinking system.
According to the 360-degree full-view-field scanning and detecting laser fuze device, through the 4-path transmitting and receiving modules, each path of transmitting and receiving module can detect a 90-degree view angle, in the advancing process of the fuze device, 4 paths of laser fuze device can realize detection of a 360-degree view-field target, and the laser fuze device is loaded in a damage device to assist a main device to accurately find and hit the target 360 degrees without dead angles; and the laser chip is welded on the circuit board with high integration level.
In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:
1. the device has high integration level, stability, reliability, small size and flexibility;
2. the 360-degree visual field target can be detected, and the detonation device is matched to give a detonation signal TTL level at a short distance;
3. can be loaded in a damage device to assist the main device to find and strike the target precisely 360 degrees without dead angles;
4. the target can be precisely and effectively hit by matching with the warhead in an active detection mode;
5. the transmitting module does not need a heat radiating device, and the volume of the transmitting module is greatly reduced.
Drawings
The invention will now be described by way of example and with reference to the accompanying drawings in which:
FIG. 1 is an external view of a laser fuze device;
FIG. 2 is an exterior view of the fuze column;
FIG. 3 is an exterior view of a transmit module;
fig. 4 is an external view of a receiving module;
FIG. 5 is a schematic structural view of the housing;
FIG. 6 is a schematic diagram of a laser chip and a circuit board;
FIG. 7 is a schematic diagram of laser chip lasing;
fig. 8 is a schematic diagram of a single pass transceiver module covering a 90 degree probe field of view.
The marks in the figure: 1-fuze column, 2-emission module, 3-receiving module, 4-laser chip, 5-circuit board, 6-locating part, 11-emission cavity, 12-receiving cavity, 21-tube shell cavity, 22-tube shell, 23-step, 24-glass window, 31-round hole, 41-heat sink.
Detailed Description
All of the features disclosed in this specification, or all of the steps in a method or process disclosed, may be combined in any combination, except for mutually exclusive features and/or steps.
Any feature disclosed in this specification may be replaced by alternative features serving the same or equivalent purpose, unless expressly stated otherwise. That is, each feature is one example only of a generic series of equivalent or similar features, unless expressly stated otherwise.
Example 1
As shown in fig. 1, a laser fuze device for 360-degree full-view-field scanning and detection in this embodiment includes a fuze column rotating with an axis as a center and advancing along an axis direction, and 4 paths of transmitting and receiving modules are uniformly arranged in the circumferential direction of the fuze column, each path of transmitting and receiving module includes a transmitting module and a receiving module;
as shown in fig. 7, the emitting module includes two single-tube semiconductor laser chips disposed perpendicular to each other for emitting laser signals covering a 90 ° field of view range;
the receiving module is used for receiving the echo signals;
as shown in fig. 3-4, the optical axes of the transmitting module and the receiving module have an included angle with the axis of the fuze column.
In this embodiment, the transmitting module in each transmitting and receiving module transmits the laser signal covering the 90 ° field of view range, and the 4 transmitting and receiving modules can detect the 360 ° field of view of the target, so as to realize the full coverage of the field of view. Detecting and searching a hit target when the fuze column rotates forwards, loading a laser fuze device in a damage device, and assisting a main device to accurately search and hit the target 360 degrees without dead angles; the optical axes of the transmitting module and the receiving module are provided with an included angle with the axis of the fuze column, so that a certain angle is formed between the direction of the transmitted light and the advancing direction of the light source, and the transmitted light can be effectively detected to the front target.
In the embodiment, the length of the fuze column is 112mm, the inner diameter of the cross-section ring is 123mm, and the outer diameter is 127mm; the length of the emitting module is 32.6mm, the width is 22mm, and the height is 12mm; the receiving module is 54.9mm long, 40mm wide and 32mm high. The laser chip emits pulse laser with center wavelength of 915nm, frequency of 20KHz, pulse width of 10ns and peak power of 110W, and the pulse laser is calculated according to a laser fuze action distance equation, so that the pulse laser can be satisfied in a proximity fuze within a combat distance of 2 m.
As a further alternative, in other embodiments, as shown in fig. 2, 4 groups of transmitting cavities and receiving cavities are uniformly arranged around the fuze column, an included angle is formed between the axes of the transmitting cavities and the receiving cavities and the axis of the fuze column, the transmitting module is arranged in the transmitting cavity, and the receiving module is arranged in the receiving cavity, so that the fuze column is convenient to assemble and disassemble.
As a further alternative, in other embodiments, a 900 μm aspheric collimating mirror is used to collimate the light in the fast axis direction, and an optical fiber array is arranged in the slow axis direction of the laser chip; the slow axis direction is expanded and homogenized with an array of fibers to cover a 90 degree field of view.
As a further alternative, in other embodiments, as shown in fig. 3 and 5, a tube shell with length, width, height and height of 22.7×18×12mm is arranged in the transmitting module, a step for placing a laser chip and a glass window with slow axis direction of 16×8×1.5mm are arranged in the tube shell, and the front surface of the glass window is glued with 160 optical fiber arrays with length of 8mm and core diameter of 100 μm by ultraviolet; the laser chip sets up on the circuit board, and the circuit board is placed on the step, and the emission module has the tube shell chamber, and laser chip integrated is inside the tube shell, and the tube shell is fixed in the tube shell intracavity.
As a further alternative, in other embodiments, as shown in fig. 6, the laser chip is welded on a copper bar heat sink, the heat sink is disposed on a high thermal conductivity ceramic circuit board, the copper bar heat sink can be directly used as the positive electrode of the laser chip, and the negative electrode of the laser chip can be connected to the circuit board through a copper column; in the embodiment, the semiconductor laser emitted by the laser chip has low duty ratio (about one ten thousandth), the heat generation amount is small, and the heat can be directly exchanged through the heat sink without using a heat dissipation device, so that the volume of the emission module can be greatly reduced; the heat energy generated by the circuit can be directly radiated by using the high-heat-conductivity ceramic.
As a further alternative, in other embodiments, the included angle between the optical axis of the transmitting module and the axis of the fuze column is the same as the included angle between the optical axis of the receiving module and the axis of the fuze column, which is more beneficial for the receiving module to receive the callback signal.
As a further alternative, in other embodiments, the angle between the optical axes of the transmitting module and the receiving module and the axis of the fuze column is 28-38 °.
As a further alternative, in other embodiments, the angle between the optical axes of the transmitting module and the receiving module and the axis of the fuze post is 33.56 °.
In the embodiment, the included angle is 28-38 degrees, so that the effect of detecting the front target is good, and particularly, the optimal angle selection is realized at 33.56 degrees.
As a further alternative, in other embodiments, the transmitting module and the receiving module are both provided with a positioning portion matching the arc of the fuze column, so that the positioning and fixing of the transmitting module and the receiving module when being mounted to the fuze column are realized.
As a further alternative, in other embodiments, the receiving module is located in front of the transmitting direction of the transmitting module, which is more beneficial to receiving the echo signal.
As a further alternative, in other embodiments, the receiving module is provided with a round hole, which is used for placing a lens and a filter of the beam shrinking telescope system, so as to collect the echo signal light.
In summary, by adopting the laser fuze device for 360-degree full-view-field scanning and detection, the device has high integration level, stability, reliability, compactness and flexibility, can detect a 360-degree view-field target, and is matched with the initiation device to give an initiation signal TTL level at a short distance; can be loaded in a damage device to assist the main device to find and strike the target precisely 360 degrees without dead angles; the target can be precisely and effectively hit by matching with the warhead in an active detection mode; the transmitting module does not need a heat radiating device, and the volume of the transmitting module is greatly reduced.
The invention is not limited to the specific embodiments described above. The invention extends to any novel one, or any novel combination, of the features disclosed in this specification, as well as to any novel one, or any novel combination, of the steps of the method or process disclosed.
Claims (9)
1. A360-degree full-view-field scanning and detecting laser fuze device is characterized in that: the device comprises a fuze column which rotates by taking an axis as a center and advances along the axis direction, wherein 4 paths of transmitting and receiving modules are uniformly arranged in the circumferential direction of the fuze column, and each path of transmitting and receiving module comprises a transmitting module and a receiving module;
the transmitting module comprises two mutually perpendicular laser chips and is used for transmitting laser signals covering a 90-degree view field range; an optical fiber array is arranged in the slow axis direction of the laser chip; a collimating lens is arranged in the fast axis direction of the laser chip, and the collimating lens is an aspheric collimating lens;
the receiving module is used for receiving the echo signals;
and an included angle is formed between the optical axes of the transmitting module and the receiving module and the axis of the fuze column.
2. The 360 degree full field of view scanning and detecting laser fuze device of claim 1, wherein: the optical fiber laser is characterized in that a tube shell is arranged in the transmitting module, a step for placing a laser chip and a glass window in the slow axis direction of the laser chip are arranged in the tube shell, and an optical fiber array is arranged on the front surface of the glass window.
3. The 360 degree full field of view scanning and detecting laser fuze device of claim 1, wherein: the laser chip is arranged on the circuit board through the heat sink.
4. A 360 degree full field of view scanning and detecting laser fuze device as defined in claim 3 wherein: the circuit board is a high-heat-conductivity ceramic circuit board.
5. The 360 degree full field of view scanning and detecting laser fuze device of claim 1, wherein: and the included angle between the optical axis of the transmitting module and the axis of the fuze column is the same as the included angle between the optical axis of the receiving module and the axis of the fuze column.
6. The 360 degree full field of view scanning and detecting laser fuze device of claim 1, wherein: the included angle between the optical axes of the transmitting module and the receiving module and the axis of the fuze column is 28-38 degrees.
7. The 360 degree full field of view scanning and detecting laser fuze device of claim 1, wherein: the transmitting module and the receiving module are both provided with positioning parts matched with the radian of the fuze column.
8. The 360 degree full field of view scanning and detecting laser fuze device of claim 1, wherein: the receiving module is positioned in front of the transmitting direction of the transmitting module.
9. The 360 degree full field of view scanning and detecting laser fuze device of claim 1, wherein: the receiving module is provided with a round hole for placing lenses and filter plates of the beam shrinking telescope system.
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| CN202011235996.6A CN112414235B (en) | 2020-11-09 | 2020-11-09 | 360-degree full-view-field scanning and detecting laser fuze device |
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| CN202011235996.6A CN112414235B (en) | 2020-11-09 | 2020-11-09 | 360-degree full-view-field scanning and detecting laser fuze device |
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| CN112414235B true CN112414235B (en) | 2023-04-25 |
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| CN113093152B (en) * | 2021-04-08 | 2023-02-21 | 山东省科学院激光研究所 | Laser detector for panoramic view |
Citations (1)
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| CN107272014A (en) * | 2017-08-05 | 2017-10-20 | 广州市杜格数控设备有限公司 | The two-dimension scanning laser radar and its scan method of a kind of solid-state |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4309946A (en) * | 1967-07-13 | 1982-01-12 | General Dynamics, Pomona Division | Laser proximity fuzing device |
| DE3909188A1 (en) * | 1989-03-21 | 1990-09-27 | Messerschmitt Boelkow Blohm | RELEASE SENSOR |
| CN201654281U (en) * | 2009-11-10 | 2010-11-24 | 西安炬光科技有限公司 | Optical fiber coupling module used for semiconductor laser |
| CN103022864B (en) * | 2012-12-13 | 2014-12-03 | 华南理工大学 | Tunable narrow-linewidth array single-frequency fiber laser |
| CN104197794A (en) * | 2014-08-13 | 2014-12-10 | 上海无线电设备研究所 | Large-visual-field target detection laser fuze transceiving optic system |
| CN106646863A (en) * | 2016-11-14 | 2017-05-10 | 上海无线电设备研究所 | Miniature large-field-of-view laser fuze transmitting-receiving optical system |
| CN109975825B (en) * | 2019-03-07 | 2020-02-18 | 南京理工大学 | Single-emitting multi-receiving area scanning type laser detection device assembled on non-rotating bomb |
| CN109991585A (en) * | 2019-03-25 | 2019-07-09 | 深圳市速腾聚创科技有限公司 | The Method of Adjustment of laser radar and laser radar |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107272014A (en) * | 2017-08-05 | 2017-10-20 | 广州市杜格数控设备有限公司 | The two-dimension scanning laser radar and its scan method of a kind of solid-state |
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