CN108007360A - Cannon displacement measurement method - Google Patents
Cannon displacement measurement method Download PDFInfo
- Publication number
- CN108007360A CN108007360A CN201711329581.3A CN201711329581A CN108007360A CN 108007360 A CN108007360 A CN 108007360A CN 201711329581 A CN201711329581 A CN 201711329581A CN 108007360 A CN108007360 A CN 108007360A
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- China
- Prior art keywords
- displacement sensor
- laser displacement
- cannon
- displacement
- data acquisition
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
Abstract
The invention discloses a kind of cannon displacement measurement method, for solving the technical problem of existing cannon displacement measurement method poor practicability.Technical solution is that the displacement of cannon in shooting is detected using laser displacement sensor, and data collecting system is acquired and analyzes to laser displacement sensor output signal.Meanwhile data collecting system is acquired the electric signal of artillery system, mechanical signal, in this way, the displacement signal of artillery system and other signals can be triggered while gathered at the same time.It cannot in real time be detected, gathered and the technical problem of Synchronization Analysis so as to solve, reduced the error of test system, improve the synchronism of whole test system, practicality is good.
Description
Technical field
The present invention relates to a kind of cannon displacement measurement method.
Background technology
Existing cannon displacement measurement method uses contact type mechanical method of testing, which includes coating, contact pin type
Displacement measuring device and vernier caliper.During measurement, in the coating cannon plane parallel with gun barrel, contact pin type displacement is surveyed
Amount device is fixed on opposing stationary platform, and contact pilotage is touched with scribbling the flat face of coating, and during artillery shooting, cannon is due to rear
The effect of recoil produces displacement, and the contact pilotage being fixed on platform leaves cut on coating, and shooting terminates, direct with vernier caliper
Measure the length of cut, the maximum displacement of length, that is, cannon of cut in shooting course.
Existing cannon displacement measurement method is disadvantageous in that：Cannon is in shooting course, under the action of kick
Produce back seat displacement and left and right is shaken, left and right effect of jitter contact pilotage, so as to influence the precision of displacement measurement, contact pilotage connects with cannon
Touch, easily cannon surface is caused to damage, measurement process to whole experiment process cannot detect and gather in real time, can not
Analysis is synchronized with other signals, it is impossible to which the potential problems occurred during experiment are fed back into testing crew in time, it is impossible to
The hidden danger during experiment is found in time.
The content of the invention
In order to overcome the shortcomings of existing cannon displacement measurement method poor practicability, the present invention provides a kind of cannon displacement measurement
Method.This method is detected the displacement of cannon in shooting using laser displacement sensor, and data collecting system is to laser
Displacement sensor output signal is acquired and analyzes.Meanwhile electric signal of the data collecting system to artillery system, mechanical signal
It is acquired, in this way, the displacement signal of artillery system and other signals can be triggered while gathered at the same time.So as to solve
It cannot in real time be detected, be gathered and the technical problem of Synchronization Analysis, reduced the error of test system, improve whole test
The synchronism of system, practicality are good.
The technical solution adopted by the present invention to solve the technical problems：A kind of cannon displacement measurement method, its main feature is that bag
Include following steps：
Step 1: according to the measurement range of artillery system and test program selection laser displacement sensor, and in 15 DEG C of bars
Under part, laser displacement sensor is calibrated, determines its sensitivity；
Step 2: using the frock of upper and lower, the front and rear adjusting of original screw hole design energy on platform, in the front and back support of frock
The nutplate of upper design and installation laser displacement sensor；
Step 3: laser displacement sensor is fixed in nutplate, couple amplifier unit and D.C. regulated power supply, directly
After flowing regulated power supply power supply, by adjust frock up and down, front and back support determine the exact position of laser displacement sensor, it is fixed
Up and down, front and back support, and frock is fixed on platform；
Step 4: 0~24V/0 of selection doubleway output voltage~adjustable D.C. regulated power supplies of 2A.
Step 5: select 8 passage of port number, highest sample rate 100MS/s, DC precision ± 0.5% and frequency range DC
The data acquisition device of~20MHz.
Step 6: the sensing head output line of laser displacement sensor passes through connector and the amplifier of laser displacement sensor
Unit input line couples, and the output line of amplifier unit passes through multicore communication cable and D.C. regulated power supply and data acquisition device
Connection.
Step 7: the measuring condition, trigger condition and display condition of data acquisition device are configured.
Step 8: before transmitting, reference signal is confirmed, data acquisition device is in triggering wait state.During transmitting, data
Harvester automatic trigger, time of measuring arrive, and stop collection, Wave data and image data are preserved.
Step 9: carry out horizontal amplification to waveform using Zoom display pattern, using ordinate selection need to analyze when
Between section, with the size of abscissa measuring signal.
The beneficial effects of the invention are as follows：This method examines the displacement of cannon in shooting using laser displacement sensor
Survey, data collecting system is acquired and analyzes to laser displacement sensor output signal.Meanwhile data collecting system is to cannon
The electric signal of system, mechanical signal are acquired, in this way, the displacement signal of artillery system and other signals can be touched at the same time
Hair gathers at the same time.It cannot in real time be detected, gathered and the technical problem of Synchronization Analysis so as to solve, reduce test system
The error of system, improves the synchronism of whole test system, and practicality is good.
The present invention tests the displacement of the artillery system in shooting using contactless displacement test method, solves
There are the destruction in installation process to artillery system in contact displacement measurement method, at the same also solve in test process by
The phenomenon that the measurement accuracy caused by abrasion, skidding reduces.The displacement signal number that maintenance data harvester exports sensor
According to being acquired, preserving, analyzing and processing with other signals data, displacement signal and its are realized by the setting to trigger signal
Its signal is same to be triggered, with collection, same to preservation, same to analysis, reliably data supporting is provided for experiment, during timely discovery is tested
There are the problem of.
Elaborate with reference to the accompanying drawings and detailed description to the present invention.
Brief description of the drawings
Fig. 1 is the flow chart of cannon displacement measurement method of the present invention.
Embodiment
With reference to Fig. 1.Cannon displacement measurement method of the present invention comprises the following steps that：
Step 1: sensor indices, parameters selection.
(1) the selection measurement range of sensor：100mm ± 35mm, resolution ratio：5 μm, linearly：± 0.1%F.S. measurement weeks
30 μ s of phase, response time：60 μ s, supply voltage：DC10~30V, operating temperature：During work, 0~50 DEG C, preserve when, -15 DEG C
~+70 DEG C of laser displacement sensor.
(2) displacement sensor is calibrated at 15 DEG C of room temperature, determine the sensitivity in its measurement range.Table 1 is laser
Displacement sensor calibration record table.
1 displacement sensor calibration record table of table
Step 2: the design of sensor frock.
On the basis of artillery system structure is not destroyed, design can upper and lower, the front and rear frock that can adjust, using on platform
Original screw hole design can be fixed on base on platform, according to the fixed position of base and the Position Design fore-aft adjustable of cannon
The length of cross bar is saved, and the nutplate of displacement sensor can be installed in the Front-end Design of front and rear cross bar.According to the survey of artillery system
Adjustable montant above and below Position Design is tried, adjusts the upper-lower position that montant linkage adjusts cross bar.
Step 3: the installation of sensor.
Displacement sensor is fixed in the nutplate of front and rear mounting bracket with the screw of 2 M30 × 30, connects amplifier
Unit, is connected by communication cable with D.C. regulated power supply, and after regulated power supply power supply, the NEAR indicator lights and FAR of sensor refer to
Show that lamp flickers, during sensor distance testee 100 ㎜ of surface, NEAR indicator lights and FAR indicator lights bright green at the same time, this explanation
Sensor distance measured object distance is just suitable, and adjusting the front and back support of frock makes sensing head laser emitting surface be put down with tested surface
OK, adjusting the upper and lower bracket of mounting tool makes laser projection that frock be fixed on platform to the back side of the automatic machine of cannon
In this position, installation is complete for sensor.
Step 4: the selection of direct-flow voltage regulation source.
0~24V/0 of D.C. regulated power supply selection doubleway output~2A is adjustable, real-time display voltage, electric current, regulation voltage level
The output voltage for making D.C. regulated power supply is+18V.
Step 5: data acquisition device index, parameters selection.
(1) reference signal 0, select cannon percussion circuit cock signal on the basis of signal 0, voltage magnitude -4V~+
4V, frequency 200Hz, trailing edge triggering.
(2) 8 passage of port number, highest sample rate 100MS/s, DC precision ± 0.5%, frequency range DC~20MHz are selected
Data acquisition device.
Step 6: the connection of test system.
After installation is complete, the output line of sensing head and the amplifier unit portion of sensor input the sensing head of displacement sensor
Line is connected by connector, and the output line in sensor amplifier unit portion passes through communication cable and D.C. regulated power supply and data
Harvester is connected, and wherein brown output line DC10~30V is connected with the cathode of D.C. regulated power supply, blue output line
GND is connected with the anode of direct-flow voltage regulation source, and it is 1 to select attenuation ratio:The passage 2 of 1 probe connection data acquisition device,
The black signal output line in amplifier unit portion is connected with the positive input popped one's head in, in order to avoid power supply signal believes displacement
Number interference, three-wire system is changed to four-wire system, the shielding line of black signal output line is connected with the negative input popped one's head in,
D.C. regulated power supply and data acquisition device are electrically connected by power cord and 220V cities, whole to test system connection completion.
Step 7: acquisition condition is set.
(1) measuring condition is set：Measurement pattern is set for triggering, single pattern, to be conventional, time of measuring is obtaining mode
10s, sample rate 100MS/s, measurement sampled point are 50MS, and recording channel number is CH1, CH2, CH3 and CH4, and coupled modes are
DC, probe attenuation ratio are 1 ︰ 1, and voltage range is respectively ± 5V, ± 10V.
(2) trigger condition is set：Setting triggering grade, trigger source is outside, and trigger slope is trailing edge to be single, pre- to touch
Send out as 10%, trigger delay 0s.
(3) display condition is set：Set chart to be shown as waveform, reference axis and scale to show, chart time shaft shows shape
Formula is relative time, and interpolation is linear interpolation, and meter full scale is respectively -6V~+6V, -5V~+20V, and waveform color is acquiescence.
Step 8: data acquisition is preserved with data.
(1) data acquisition.
Before Canon launching, the square-wave signal for confirming reference signal 0, amplitude -4V~+4V, frequency 200Hz, triggering are first adjusted
Slope is rising edge；The beginning drainage pattern of log-on data harvester, makes under triggering wait state.
During Canon launching, firing control circuit, which is connected, makes reference signal 0 export square wave trigger signal, data acquisition dress automatically
To put and be automatically triggered, signal 1, signal 2, signal 3, signal 4 are by automatic collection, since test setting is single-trigger mode, because
This, after acquisition time reaches, data acquisition device is automatically stopped collection.
(2) data preserve.
Wave data preserves：It is local disk to set storing path, preservation type is .wdf, Save Range is whole area
Domain, preservation unit is sampled point, and is preserved.
Image data preserves：Setting storing path is local disk, and preservation type is .bmp, and is preserved.
Step 9: wave data processing.
(1) waveform scaling, movement：Into Zoom display pattern, horizontal amplification is carried out to waveform, until screen display is horizontal
Untill amplification factor is 200ms/ lattice, and waveform is set to be located at screen centre position.
(2) Wave data measures：Carried out using vertical cursor, in the left and right mobile vertical cursor of two focus of waveform, then existed
Automatically data number, time measurement data, time difference, voltage measurements and the voltage difference of two focus are shown on screen
Value.It is exactly cannon in shooting course that voltage difference Δ V of the cannon in shooting course is multiplied with the sensitivity coefficient δ of sensor
Displacement.
(3) the wave band that the Synchronization Analysis of Wave data needs to analyze using vertical cursor selection, it can be seen that synchronization is each
The change of signal waveform, the size of each signal is being measured with row cursor.
The present invention one is that the displacement of artillery shooting process is measured using contactless measurement, and displacement is real
When be output to harvester, it is simple in structure, using convenient, and accurately, reliably.Second, using data acquisition device to displacement
Real-time sampling is carried out, and can accomplish to trigger sampling at the same time with other data-signals, so not only can real-time tracer signal
Waveform, finds problem present in field test in time, and can analyze providing Wave data with the solution pinpointed the problems,
Accurate, reliable waveform, data reserve are provided for experiment later.
Claims (1)
- A kind of 1. cannon displacement measurement method, it is characterised in that comprise the following steps：Step 1: according to the measurement range of artillery system and test program selection laser displacement sensor, and under the conditions of 15 DEG C, Laser displacement sensor is calibrated, determines its sensitivity；Step 2: using the frock of upper and lower, the front and rear adjusting of original screw hole design energy on platform, set on the front and back support of frock The nutplate of meter installation laser displacement sensor；Step 3: laser displacement sensor is fixed in nutplate, couples amplifier unit and D.C. regulated power supply, direct current are steady After voltage source power supply, by adjust frock up and down, front and back support determine the exact position of laser displacement sensor, in fixation Under, front and back support, and frock is fixed on platform；Step 4: 0~24V/0 of selection doubleway output voltage~adjustable D.C. regulated power supplies of 2A；Step 5: 8 passage of selection port number, highest sample rate 100MS/s, DC precision ± 0.5% and frequency range DC~ The data acquisition device of 20MHz；Step 6: the sensing head output line of laser displacement sensor passes through connector and the amplifier unit of laser displacement sensor Input line couples, and the output line of amplifier unit is joined by multicore communication cable and D.C. regulated power supply and data acquisition device Connect；Step 7: the measuring condition, trigger condition and display condition of data acquisition device are configured；Step 8: before transmitting, reference signal is confirmed, data acquisition device is in triggering wait state；During transmitting, data acquisition Device automatic trigger, time of measuring arrive, and stop collection, Wave data and image data are preserved；Step 9: horizontal amplification is carried out to waveform using Zoom display pattern, the period for needing to analyze using ordinate selection, With the size of abscissa measuring signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711329581.3A CN108007360A (en) | 2017-12-13 | 2017-12-13 | Cannon displacement measurement method |
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|---|---|---|---|
| CN201711329581.3A CN108007360A (en) | 2017-12-13 | 2017-12-13 | Cannon displacement measurement method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117513A (en) * | 2018-07-19 | 2019-01-01 | 西安昆仑工业（集团）有限责任公司 | A kind of Fixture Design Simulation Management and management method |
| CN112923787A (en) * | 2021-01-22 | 2021-06-08 | 南京理工大学 | Method for calculating maximum recoil displacement of artillery based on air pressure of re-entrant machine |
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| CN103017662A (en) * | 2012-10-15 | 2013-04-03 | 中国兵器工业第二〇二研究所 | Five-freedom-degree vibration displacement test method for artillery cradle |
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| CN106767548A (en) * | 2017-03-08 | 2017-05-31 | 长春理工大学 | Directive property device and method under the coordinate method detection gun barrel shooting state of space three |
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| US5793484A (en) * | 1986-02-19 | 1998-08-11 | Delassaux; Jean-Marc | Optical device for the remote measuring of variations in the orientation of an object |
| CN102538873A (en) * | 2011-12-30 | 2012-07-04 | 常州海通电气自动化技术装备有限公司 | Fully automatic test line for stroke detecting device |
| CN103017662A (en) * | 2012-10-15 | 2013-04-03 | 中国兵器工业第二〇二研究所 | Five-freedom-degree vibration displacement test method for artillery cradle |
| CN202968586U (en) * | 2012-12-14 | 2013-06-05 | 武汉钢铁(集团)公司 | Displacement detection device for cooling wall of blast furnace |
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| CN104457428A (en) * | 2013-09-25 | 2015-03-25 | 中国兵器工业第二0二研究所 | Tank gun steering wheel and muzzle displacement angle deviation testing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109117513A (en) * | 2018-07-19 | 2019-01-01 | 西安昆仑工业（集团）有限责任公司 | A kind of Fixture Design Simulation Management and management method |
| CN112923787A (en) * | 2021-01-22 | 2021-06-08 | 南京理工大学 | Method for calculating maximum recoil displacement of artillery based on air pressure of re-entrant machine |
| CN112923787B (en) * | 2021-01-22 | 2022-11-25 | 南京理工大学 | Method for calculating maximum recoil displacement of artillery based on air pressure of re-entrant machine |
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Application publication date: 20180508 |