CN210071150U - Laser irradiation indicator comprehensive performance detection equipment - Google Patents
Laser irradiation indicator comprehensive performance detection equipment Download PDFInfo
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- CN210071150U CN210071150U CN201921074316.XU CN201921074316U CN210071150U CN 210071150 U CN210071150 U CN 210071150U CN 201921074316 U CN201921074316 U CN 201921074316U CN 210071150 U CN210071150 U CN 210071150U
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Abstract
The utility model discloses a laser irradiation indicator comprehensive performance detection device, which comprises a detection device for detecting the laser irradiation indicator comprehensive performance; the detection device is electrically connected with an external computer; the detection equipment consists of a coded laser acquisition front end, a laser ranging acquisition front end and a main control unit; the output end of the coded laser acquisition front end and the output end of the laser ranging acquisition front end are respectively and electrically connected with a main control unit; the main control unit is in communication connection with an external computer through a communication cable; the utility model discloses a laser irradiation indicator comprehensive properties check out test set can detect the repetition frequency coding pulse laser performance and the laser rangefinder performance of laser irradiation indicator, and the check out test set volume is less, portable.
Description
Technical Field
The utility model relates to a laser irradiation indicator comprehensive properties check out test set belongs to laser test technical field.
Background
In the terminal guided weapon system, a laser irradiation indicator emits a high-energy repetition frequency laser beam to irradiate a target and provide distance and direction information of the target, and performance indexes of the laser ranging indicator and the laser irradiation indicator under two states are the key for determining the guidance precision of the system; the indicator is complex in composition, and when the indicator is used for daily maintenance, storage maintenance, training and use, the performance of the indicator is influenced due to various factors such as misoperation, wrong maintenance, impact vibration, brute force operation, incorrect adjustment method and the like, and the failure rate is much higher than that of other photoelectric equipment; the laser irradiator which has faults or maladjustment tends to influence the weapon striking effect; the comprehensive performance detection of the laser irradiation indicator is significant for improving the fighting capacity of the terminal guided weapon system.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a laser irradiation indicator comprehensive properties check out test set can detect repetition frequency coding pulse laser performance and the laser rangefinder performance of laser irradiation indicator, and the check out test set volume is less, portable.
The utility model discloses a laser irradiation indicator comprehensive performance detection device, which comprises a detection device used for detecting the laser irradiation indicator comprehensive performance; the detection device is electrically connected with an external computer; the detection equipment consists of a coded laser acquisition front end, a laser ranging acquisition front end and a main control unit; the output end of the coded laser acquisition front end and the output end of the laser ranging acquisition front end are respectively and electrically connected with a main control unit; the main control unit is in communication connection with an external computer through a communication cable, and the coded laser acquisition front end is mainly used for receiving and acquiring repetition frequency coded laser transmitted from the indicator, detecting a starting signal and an ending signal of each laser pulse after a series of processing such as filtering, converging, amplifying and demodulating and the like is carried out on an acquired laser signal, and then transmitting characteristic information of each pulse laser to the main control unit; the laser ranging acquisition front end is designed by adopting a photoelectric coupling method and is divided into a receiving system and an emitting system, wherein the receiving system receives laser pulses emitted by a laser irradiation indicator to be measured and takes the signals as timing door opening signals; the transmitting system simulates an echo signal of a laser irradiation indicator after transmitting a laser pulse for a certain time, and the echo signal is received by a receiving device of the laser irradiation indicator and then is used as a timing door closing signal;
the coded laser acquisition front end comprises a coded optical filter, a coded converging lens and a high-speed photoelectric detector which are sequentially arranged from front to back; the high-speed photoelectric detector is electrically connected to the signal processing circuit; the output end of the signal processing circuit is electrically connected with the main control unit and is used for receiving and collecting repetition frequency coding laser emitted from the laser irradiation indicator, detecting a starting signal and an ending signal of each laser pulse after a series of processing such as filtering, converging, amplifying and demodulating and the like is carried out on the collected laser signals, and then sending characteristic information of each pulse laser to the main control unit; specifically, when the collected laser irradiation indicator emits sequential laser pulses in a continuous pulse mode or a repetition frequency coding mode, the sequential laser pulses are received by a high-speed photoelectric detector after passing through a coding optical filter and a coding converging lens, then starting and ending signals of each laser pulse are detected through an amplifier and a demodulator of a signal processing circuit and are sent to a main control unit, and a repetition frequency time measuring device circuit is triggered to count; thus, the irradiation period can be calculated according to the clock period, and the number of pulses is counted at the same time, so that parameters such as the number of pulses to be detected, pulse intervals, pulse frequency, frequency precision, period precision and cycle precision can be calculated;
the laser ranging acquisition front end consists of a receiving system and a transmitting system;
the receiving system sequentially comprises a receiving optical filter, a receiving objective lens, a sampling tube and an energy meter; the receiving objective is a convergent lens; the sampling tube is a photoelectric detector which is a pair of diodes sensitive to laser pulse; the energy meter is a pyroelectric detector and is used for receiving laser pulses emitted by a detected laser irradiation indicator, the sampling tube is a pair of diodes sensitive to the laser pulses, and when the laser pulses arrive, a door opening signal is provided for the precise delay signal generator; meanwhile, the energy meter measures the energy value of the laser pulse;
the emission system consists of an emission objective lens and a semiconductor laser; the emission objective lens is of a three-piece type, consists of a double-glue objective lens and a positive lens and is mainly used for correcting aberration so as to emit quasi-parallel beams and check the distance measuring capability; the front side of the transmitting objective is also provided with a plane protective glass and an attenuation sheet, and the laser can be matched with the test voltage of the receiving system after being attenuated, so that the laser energy emitted by the transmitting system simulates the energy value emitted by the maximum measuring range, and the distance measuring capability is checked;
the main control unit comprises a data acquisition and processing module, a data storage and control module and a man-machine interface module; the coded laser acquisition front end and the laser ranging acquisition front end are respectively and electrically connected with the data acquisition processing module; the data acquisition processing module is electrically connected with the data storage control module; the data storage control module is in communication connection with an external computer through a man-machine interface module, the main control unit mainly comprises a data acquisition processing module, a data storage module and a man-machine interface module, and when the main control unit is matched with the coded laser acquisition front end for use, parameters such as the number of pulses emitted by the laser irradiation indicator, pulse intervals, pulse frequency, frequency precision, period precision and the like can be detected according to pulse laser characteristic information transmitted from the front end; when the main control unit is used with the laser ranging acquisition front end, the indexes of the laser irradiation indicator, such as ranging capability, precision, range resolution, pulse energy and the like, can be detected.
Further, when the collected laser irradiation indicator emits sequential laser pulses in a continuous pulse mode or a repetition frequency coding mode, after the sequential laser pulses of the laser irradiation indicator are radiated by the atmosphere, the radiating signals are converged on the photosensitive surface of the high-speed photoelectric detector after passing through the coding optical filter and the coding converging lens.
Further, the signal processing circuit is composed of an amplifier and a demodulator.
Furthermore, the coded laser acquisition front end is installed at the bottom end of a laser emitting channel of the laser irradiation indicator through a fixed support, and is connected with the laser irradiation indicator through a laser pulse cable.
As a preferred embodiment, when the device is used for detecting the performance of repetition frequency coding pulse laser, the data storage control module comprises an ARM single chip microcomputer and a memory; the memory is electrically connected with the ARM singlechip; the data acquisition processing module is a repetition frequency time measuring device circuit which comprises a counter, a time interval determinator and a CPLD programmable logic device, wherein the time interval determinator is electrically connected with the counter; the counter, the time interval determinator and the CPLD programmable logic device are respectively and electrically connected with the ARM singlechip; the man-machine interface module comprises a communication interface matching module, a keyboard/display module and a communication interface module; the communication interface matching module is electrically connected with the time interval determinator and the memory respectively; the keyboard/display module is electrically connected with the ARM singlechip; the ARM single chip microcomputer is in communication connection with an external computer through a communication interface module; the coded laser acquisition front end is electrically connected with a counter of the data acquisition processing module; the laser irradiation indicator is connected with the communication interface matching module through the sequence switching device socket, parameters such as the number of laser pulses, the number of cycles, the encoding precision and the like output by the laser irradiation indicator during working are subjected to photoelectric conversion through the encoding laser acquisition front end, and then counting and pulse interval time measurement are carried out; therefore, synchronous monitoring of various working states of the laser irradiation indicator is realized; when all the laser pulse information is stored fully, the data is automatically updated, the recorded data can be connected with an external computer through a communication cable at any time, and the data measured in the past are transmitted to the external computer for storage or analyzed by using visual software.
As a preferred embodiment, when detecting the laser ranging performance, the data storage control module includes an 8051 single chip with a storage unit, a laser pulse signal synchronizer, and a light-emitting intensity control circuit; the output end of the luminous intensity control circuit is electrically connected with a semiconductor laser of an emission system; the data acquisition processing module comprises an A/D converter and an accurate time delay circuit which are electrically connected with an energy meter of the receiving system; the precise time delay circuit consists of a data signal processor, a precise time measurer and a precise time delay signal generator; the output end of the precision time measurer and the input end of the precision time delay signal generator are respectively and electrically connected with the data signal processor; the A/D converter and the data signal processor are respectively and electrically connected with the 8051 singlechip; the input end of the precision time measuring device is electrically connected with the laser pulse signal synchronizer; the output end of the precise time delay signal generator is electrically connected with the luminous intensity control circuit; the man-machine interface module comprises a communication control interface unit and a communication interface unit; the 8051 singlechip is in communication connection with the laser irradiation indicator through the communication control interface unit; the 8051 single chip microcomputer is in communication connection with an external computer through a communication interface unit, takes an optical signal emitted by a measured laser irradiation indicator as a timing door opening signal of a main control unit, emits a standard light source through a luminous intensity control circuit and a semiconductor laser after time delay through a precise time delay circuit, emits a pulse laser with the wavelength consistent with that of the laser indicator and the power corresponding to the corresponding distance, enables the laser irradiation indicator to receive, and accordingly checks indexes such as distance measurement capability, precision, distance resolution and the like; meanwhile, an energy meter is arranged and used for detecting the energy of the laser irradiation indicator to be detected; in addition, a communication control interface unit which is connected with the laser irradiation indicator is also arranged and is used for controlling the work of the laser irradiation indicator to be measured.
Further, the semiconductor laser is a light emitting diode capable of emitting laser light with a wavelength of 1.064 μm.
Compared with the prior art, the utility model discloses a laser irradiation indicator comprehensive properties check out test set, the cooperation of coded laser collection front end and main control unit is used, can accomplish the detection of performance index such as laser irradiation indicator pulse number, pulse interval, pulse frequency, frequency accuracy, cycle accuracy; the laser ranging acquisition front end is matched with the main control unit for use, and the detection of performance indexes such as ranging capability, precision, range resolution, pulse energy and the like of the laser irradiation indicator can be completed; the repetition frequency coding pulse laser performance and the laser ranging performance of the laser irradiation indicator can be detected, and the detection equipment is small in size and convenient to carry.
Drawings
Fig. 1 is a block diagram illustrating the overall structure of the present invention.
Fig. 2 is a schematic diagram of the structure of the front end of the coded laser acquisition system of the present invention.
Fig. 3 is the structure diagram of the front end of the laser ranging acquisition device of the present invention.
Fig. 4 is a block diagram schematically illustrating a main control unit according to embodiment 1 of the present invention.
Fig. 5 is a block diagram schematically illustrating a main control unit according to embodiment 2 of the present invention.
The parts in the drawings are marked as follows: 1-external computer, 2-coded laser collection front end, 21-coded optical filter, 22-coded convergent lens, 23-high speed photodetector, 24-signal processing circuit, 241-amplifier, 242-demodulator, 3-laser distance measurement collection front end, 31-receiving system, 311-receiving optical filter, 312-receiving objective lens, 313-sampling tube, 314-energy meter, 32-transmitting system, 321-transmitting objective lens, 3211-double-glue objective lens, 3212-positive lens, 322-semiconductor laser, 323-protective glass, 324-attenuation sheet, 4-main control unit, 41-data collection processing module, 42-data storage control module, 421-amplifier, 422-demodulator, 43-man-machine interface module, 5-laser irradiation indicator, 6-laser pulse cable, 7-sequence exchange device socket.
Detailed Description
Example 1:
the laser irradiation indicator comprehensive performance detecting apparatus shown in fig. 1 to 4 includes a detecting apparatus for detecting the comprehensive performance of the laser irradiation indicator 5; the detection equipment is electrically connected with an external computer 1; the detection equipment consists of a coded laser acquisition front end 2, a laser ranging acquisition front end 3 and a main control unit 4; the output end of the coded laser acquisition front end 2 and the output end of the laser ranging acquisition front end 3 are respectively and electrically connected with a main control unit 4; the main control unit 4 is in communication connection with an external computer 1 through a communication cable;
the coded laser acquisition front end 2 comprises a coded optical filter 21, a coded converging lens 22 and a high-speed photoelectric detector 23 which are sequentially arranged from front to back; the high-speed photodetector 23 is electrically connected to the signal processing circuit 24; the output end of the signal processing circuit 24 is electrically connected with the main control unit 4;
the laser ranging acquisition front end 3 consists of a receiving system 31 and a transmitting system 32;
the receiving system 31 comprises a receiving optical filter 311, a receiving objective 312, a sampling tube 313 and an energy meter 314 in sequence; the receiving objective 312 is a converging lens; the sampling tube 313 is a photoelectric detector which is a pair of diodes sensitive to laser pulses; the energy meter 314 is a pyroelectric detector;
the emission system 32 is composed of an emission objective lens 321 and a semiconductor laser 322; the emission objective lens 321 is a three-piece type, and is composed of a double-glue objective lens 3211 and a positive lens 3212; a plane protective glass 323 and an attenuation sheet 324 are also arranged on the front side of the emission objective lens 321;
the main control unit 4 comprises a data acquisition and processing module 41, a data storage and control module 42 and a human-computer interface module 43; the coded laser acquisition front end 2 and the laser ranging acquisition front end 3 are respectively and electrically connected with the data acquisition processing module 41; the data acquisition processing module 41 is electrically connected with the data storage control module 42; the data storage control module 42 is in communication connection with the external computer 1 through the man-machine interface module 43.
When the collected laser irradiation indicator emits sequential laser pulses in a continuous pulse mode or a repetition frequency coding mode, after the sequential laser pulses of the laser irradiation indicator 5 are radiated by the atmosphere, the radiation signals are converged on the photosensitive surface of the high-speed photodetector 23 through the coding filter 21 and the coding converging lens 22.
The signal processing circuit 24 is composed of an amplifier 241 and a demodulator 242.
The coded laser acquisition front end 2 is mounted at the bottom end of a laser emitting channel of the laser irradiation indicator 5 through a fixing support (not shown), and the coded laser acquisition front end 2 is connected with the laser irradiation indicator 5 through a laser pulse cable 6.
When the data storage control module 42 is used for detecting the performance of the repetition frequency coding pulse laser, the data storage control module comprises an ARM single chip microcomputer and a memory; the memory is electrically connected with the ARM singlechip; the data acquisition processing module is a repetition frequency time measuring device circuit, and 41 comprises a counter, a time interval determinator and a CPLD programmable logic device, wherein the time interval determinator is electrically connected with the counter; the counter, the time interval determinator and the CPLD programmable logic device are respectively and electrically connected with the ARM singlechip; the human-machine interface module 43 comprises a communication interface matching module, a keyboard/display module and a communication interface module; the communication interface matching module is electrically connected with the time interval determinator and the memory respectively; the keyboard/display module is electrically connected with the ARM singlechip; the ARM single chip microcomputer is in communication connection with an external computer 1 through a communication interface module; the coded laser acquisition front end is electrically connected with a counter of the data acquisition processing module; the laser irradiation indicator 5 is connected with the communication interface matching module through a sequence switching device socket 7.
Example 2:
the structure of the device for detecting the comprehensive performance of the laser irradiation indicator shown in fig. 5 is basically the same as that of embodiment 1, wherein when the device is used for detecting the laser ranging performance, the data storage control module 42 comprises an 8051 single chip microcomputer with a storage unit, a laser pulse signal synchronizer and a light-emitting intensity control circuit; the output end of the luminous intensity control circuit is electrically connected with the semiconductor laser 322 of the emission system 32; the data acquisition processing module 41 comprises an A/D converter and a precise time delay circuit which are electrically connected with the energy meter 314 of the receiving system 31; the precise time delay circuit consists of a data signal processor, a precise time measurer and a precise time delay signal generator; the output end of the precision time measurer and the input end of the precision time delay signal generator are respectively and electrically connected with the data signal processor; the A/D converter and the data signal processor are respectively and electrically connected with the 8051 singlechip; the input end of the precision time measuring device is electrically connected with the laser pulse signal synchronizer; the output end of the precise time delay signal generator is electrically connected with the luminous intensity control circuit; the human-machine interface module 43 comprises a communication control interface unit and a communication interface unit; the 8051 singlechip is in communication connection with the laser irradiation indicator 5 through a communication control interface unit; the 8051 single chip microcomputer is in communication connection with an external computer 1 through a communication interface unit. The semiconductor laser 322 is a light emitting diode capable of emitting a laser wavelength of 1.064 μm.
The utility model discloses a laser irradiation indicator comprehensive properties check out test set, the cooperation of coded laser collection front end and main control unit is used, can accomplish the detection of performance index such as laser irradiation indicator pulse number, pulse interval, pulse frequency, frequency accuracy, cycle accuracy; the laser ranging acquisition front end is matched with the main control unit for use, and the detection of performance indexes such as ranging capability, precision, range resolution, pulse energy and the like of the laser irradiation indicator can be completed; the portable and integrated design scheme reduces the volume of the instrument and improves the modular structure of hardware and the reliability and visualization degree of software; the utility model discloses a check out test set can be used to the open-air indoor detection of detecting and maintenance, acceptance department of army, and the experiment proves, the utility model discloses a check out test set has higher detection precision and maneuverability.
The above-mentioned embodiment is only the preferred embodiment of the present invention, so all the equivalent changes or modifications made by the structure, features and principles of the present invention are included in the claims of the present invention.
Claims (7)
1. A laser irradiation indicator comprehensive performance detection device comprises a detection device used for detecting the laser irradiation indicator comprehensive performance; the detection device is electrically connected with an external computer; the method is characterized in that: the detection equipment consists of a coded laser acquisition front end, a laser ranging acquisition front end and a main control unit; the output end of the coded laser acquisition front end and the output end of the laser ranging acquisition front end are respectively and electrically connected with a main control unit; the main control unit is in communication connection with an external computer through a communication cable;
the coded laser acquisition front end comprises a coded optical filter, a coded converging lens and a high-speed photoelectric detector which are sequentially arranged from front to back; the high-speed photoelectric detector is electrically connected to the signal processing circuit; the output end of the signal processing circuit is electrically connected with the main control unit;
the laser ranging acquisition front end consists of a receiving system and a transmitting system;
the receiving system sequentially comprises a receiving optical filter, a receiving objective lens, a sampling tube and an energy meter; the receiving objective is a convergent lens; the sampling tube is a photoelectric detector which is a pair of diodes sensitive to laser pulse; the energy meter is a pyroelectric detector;
the emission system consists of an emission objective lens and a semiconductor laser; the emission objective lens is of a three-lens type and consists of a double-glue objective lens and a positive lens; the front side of the emission objective is also provided with a plane protective glass and an attenuation sheet;
the main control unit comprises a data acquisition and processing module, a data storage and control module and a man-machine interface module; the coded laser acquisition front end and the laser ranging acquisition front end are respectively and electrically connected with the data acquisition processing module; the data acquisition processing module is electrically connected with the data storage control module; and the data storage control module is in communication connection with an external computer through a man-machine interface module.
2. The laser irradiation indicator comprehensive performance testing apparatus according to claim 1, characterized in that: when the collected laser irradiation indicator emits the sequence laser pulse in a continuous pulse mode or a repetition frequency coding mode, after the sequence laser pulse of the laser irradiation indicator is radiated by the atmosphere, the radiating signal is converged on the photosensitive surface of the high-speed photoelectric detector after passing through the coding optical filter and the coding converging lens.
3. The laser irradiation indicator comprehensive performance testing apparatus according to claim 1, characterized in that: the signal processing circuit is composed of an amplifier and a demodulator.
4. The laser irradiation indicator comprehensive performance testing apparatus according to claim 1, characterized in that: the coded laser acquisition front end is installed at the bottom end of a laser emitting channel of the laser irradiation indicator through a fixed support and is connected with the laser irradiation indicator through a laser pulse cable.
5. The laser irradiation indicator comprehensive performance testing apparatus according to claim 1, characterized in that: when used for detecting the performance of the repetition frequency coded pulse laser,
the data storage control module comprises an ARM single chip microcomputer and a memory; the memory is electrically connected with the ARM singlechip;
the data acquisition processing module is a repetition frequency time measuring device circuit which comprises a counter, a time interval determinator and a CPLD programmable logic device, wherein the time interval determinator is electrically connected with the counter; the counter, the time interval determinator and the CPLD programmable logic device are respectively and electrically connected with the ARM singlechip;
the man-machine interface module comprises a communication interface matching module, a keyboard/display module and a communication interface module; the communication interface matching module is electrically connected with the time interval determinator and the memory respectively; the keyboard/display module is electrically connected with the ARM singlechip; the ARM single chip microcomputer is in communication connection with an external computer through a communication interface module;
the coded laser acquisition front end is electrically connected with a counter of the data acquisition processing module; the laser irradiation indicator is connected with the communication interface matching module through the sequence switching device socket.
6. The laser irradiation indicator comprehensive performance testing apparatus according to claim 1, characterized in that: when used for detecting the laser ranging performance,
the data storage control module comprises an 8051 singlechip with a storage unit, a laser pulse signal synchronizer and a light-emitting intensity control circuit; the output end of the luminous intensity control circuit is electrically connected with a semiconductor laser of an emission system;
the data acquisition processing module comprises an A/D converter and an accurate time delay circuit which are electrically connected with an energy meter of the receiving system; the precise time delay circuit consists of a data signal processor, a precise time measurer and a precise time delay signal generator; the output end of the precision time measurer and the input end of the precision time delay signal generator are respectively and electrically connected with the data signal processor; the A/D converter and the data signal processor are respectively and electrically connected with the 8051 singlechip; the input end of the precision time measuring device is electrically connected with the laser pulse signal synchronizer; the output end of the precise time delay signal generator is electrically connected with the luminous intensity control circuit;
the man-machine interface module comprises a communication control interface unit and a communication interface unit; the 8051 singlechip is in communication connection with the laser irradiation indicator through the communication control interface unit; the 8051 single chip microcomputer is in communication connection with an external computer through a communication interface unit.
7. The laser irradiation indicator comprehensive performance testing apparatus according to claim 1 or 6, characterized in that: the semiconductor laser is a light emitting diode capable of emitting laser light with the wavelength of 1.064 μm.
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| CN201921074316.XU CN210071150U (en) | 2019-07-10 | 2019-07-10 | Laser irradiation indicator comprehensive performance detection equipment |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274699A (en) * | 2019-07-10 | 2019-09-24 | 中国人民解放军陆军工程大学 | A kind of Laser radiation indicated meter comprehensive performance detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110274699A (en) * | 2019-07-10 | 2019-09-24 | 中国人民解放军陆军工程大学 | A kind of Laser radiation indicated meter comprehensive performance detection device |
| CN110274699B (en) * | 2019-07-10 | 2024-01-19 | 中国人民解放军陆军工程大学 | Comprehensive performance detection equipment for laser irradiation indicator |
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