CN111637803B - Method for testing fire sensitivity of medicine head - Google Patents
Method for testing fire sensitivity of medicine head Download PDFInfo
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- CN111637803B CN111637803B CN202010499418.7A CN202010499418A CN111637803B CN 111637803 B CN111637803 B CN 111637803B CN 202010499418 A CN202010499418 A CN 202010499418A CN 111637803 B CN111637803 B CN 111637803B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F42—AMMUNITION; BLASTING
- F42C—AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR
- F42C21/00—Checking fuzes; Testing fuzes
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Abstract
The invention discloses an ignition sensitivity inspection device and an ignition sensitivity inspection method, wherein the inspection device comprises an inspection host and an inductance test fixture connected with the inspection host, and the inspection host is connected with the test fixture through a DB25 connecting wire. The invention also provides a method for testing the ignition sensitivity, which can quickly and accurately test the ignition sensitivity of the explosive head, automatically count and calculate the total number N of ignition times, the total number N' of non-ignition times, the standard deviation s of sample ignition voltage values, the factor M for judging the data validity and the voltage values of 50.00%,99.99% and 00.01%, and can also test the delay of the explosive head. This device adopts the touch-sensitive screen to show, and is easy and simple to handle, and the operation is reliable and stable, can carry out the test of 10 explosive heads in succession, and detection efficiency is high, accords with the experiment detection requirement of sensitivity of firing the explosive head, has ensured the safe handling of later stage detonator.
Description
Technical Field
The invention relates to the technical field of digital electronic detonators, in particular to a method for testing the ignition sensitivity of a explosive head.
Background
With the development of engineering blasting technology, the requirement of blasting engineering is higher and higher, and the application of the electronic detonator in the blasting process is more and more common. The ignition part of the electronic detonator is called as an ignition bridge head and comprises a bridge wire and a priming charge, and the ignition sensitivity of the ignition part is mainly related to the resistance and the medicament components of the bridge wire under a specific environment, so that the initiation work has a great uncertain factor and the possibility of various dangerous accidents under the condition of uncertain ignition sensitivity. The electronic detonator ignition powder head combustion roughly comprises the steps of an electronic control module delayed discharge process, a module resistance temperature rise process and ignition powder combustion. In the blasting process, the normal detonation of the detonator is the key of safety production, the reliability of the detonator ignition is directly related to the success or failure and safety of blasting engineering, and the ignition performance of the electronic detonator is directly determined by whether the ignition powder can be reliably combusted, so that the ignition sensitivity of the ignition powder head can be accurately determined, the ignition rate of the detonator can be ensured, and the ignition rate and the delay precision of the detonator can be obviously improved.
Disclosure of Invention
The invention aims to provide a method for testing the ignition sensitivity of a explosive head aiming at the technology that the ignition sensitivity can not be accurately measured at present, so that the ignition sensitivity of the explosive head can be quickly and accurately tested, and the safety and the reliability of the later detonator are ensured.
The invention provides a detection device capable of detecting the ignition sensitivity of an ignition powder head, which comprises a detection host and an inductance testing clamp connected with the detection host, wherein the detection host is connected with the testing clamp through a DB25 connecting wire.
Furthermore, the detection host computer is an aluminum alloy box-shaped structure and mainly comprises a power switch, a signal indicator light, an embedded thermal printer, a data interface, a communication interface, a charging port, a display touch screen, a potentiometer and an internal main control panel. Furthermore, the power switch, the signal indicator light, the embedded thermal printer and the display touch screen are distributed on the front panel of the detection host, and the potentiometer, the communication interface, the data interface and the charging port are distributed on the rear panel of the detection host.
Furthermore, the display touch screen is used for touch display output, realizes a human-computer interaction function, and has 8 functional operation parts, including initial voltage setting, step voltage setting, starting ignition, parameter setting, manual/automatic mode switching, drug head delay testing, statistics and restarting statistics; the signal indicator lamps comprise alarm indicator lamps, high-voltage indicator lamps and charging indicator lamps, wherein the alarm indicator lamps are used for displaying whether the explosive heads are ignited or not, are lightened when the explosive heads are not ignited, and are extinguished when the 'starting ignition' is clicked again; the high-voltage indicator light is used for detecting whether the capacitor is fully charged, and is lightened when being fully charged and is extinguished when being ignited; the charging indicator lamp is used for displaying the battery voltage, is lightened when the voltage is less than 7V and indicates undervoltage; the embedded thermal printer supports the real-time printing of the detection result, so that the record can be conveniently read; the potentiometer is used to adjust the sensitivity of the photosensor.
Further, inside main control board includes the minimum system of singlechip, power module, DCDC lift module, voltage sampling module, voltage output module, sensitivity adjusting module, photoelectric signal collection module, communication module, pilot lamp drive module, data storage module, electric capacity switching module, detects the component resistance module that fires, and remaining explosive head fires the module.
Furthermore, the communication module comprises an RS232 communication module and a TTL serial port communication module, wherein the RS232 communication module is used for upgrading the firmware of the main control board to realize online printing; the TTL serial port communication module is used for realizing mutual communication between the display touch screen and the internal main control board.
Furthermore, the module for detecting the resistance value of the ignition element can test the resistance value of the ignition element and the on-off state of the resistor, and the problem of the ignition element is solved under the condition that the ignition is not performed.
Furthermore, the residual explosive head blasting module can uniformly blast and destroy the explosive heads which are not ignited, so that the safety management of the explosive heads is ensured.
The invention also provides a method for testing the fire sensitivity of the explosive head, which comprises the following steps:
1. firstly, connecting a detection clamp with a detection device, placing an ignition plate into a clamping groove on a detection clamp support plate, and firmly pressing and clamping a pressing plate;
2. pressing a 'switch' button on a panel of the checking device, starting the checking device, and entering a function home page interface of the checking device;
3. touching and pressing a 'set parameter' button on a home page interface to carry out sensitivity adjustment and capacitance selection;
4. setting an initial voltage and a stepping voltage, selecting a manual or automatic mode, and touching and pressing a 'starting ignition' button to test the ignition sensitivity;
5. when the condition of satisfying statistical data is tested in use, a ' statistical ' key is clicked to perform a data statistical function, so that a firing voltage statistical graph of an effective firing explosive head can be obtained, the total number N of firing times and the total number N ' of non-firing times are automatically output, the sample firing voltage value is a standard deviation s, a factor M for judging data effectiveness, and in addition, voltage values of 50.00%,99.99% and 00.01% can be automatically calculated according to GJB/2377A-94.
6. The 'delay test of the medicine head' button is touched and pressed, the medicine head delay test interface is entered, and the 'start' button is clicked, so that the delay test of the medicine head can be carried out.
Further, the starting voltage setting range is controlled by the DCDC lifting module, the stepping voltage is adjustable, and when the stepping voltage is set to be 0V, the stepping voltage represents that the equipment is a setting value of the starting voltage at each time of starting and firing.
Furthermore, when the fire detection of the medicine head is started, when the detection of the continuous 5-generation medicine heads is all ignited or not ignited, the prompt of 'exceeding 5 invalid points and restarting statistics' by pressing the key appears on the interface, at the moment, the prompt information is clicked, the statistical data is cleared, and the proper starting voltage is reselected to start the fire detection.
Further, the parameter setting button comprises sensitivity adjustment setting and capacitance selection setting, wherein sensitivity adjustment is selected, the potentiometer knob of the rear panel is rotated, corresponding sensitivity adjustment can be carried out, sensitivity testing can be carried out after adjustment is finished, and after signals are detected, the numerical value in the sensitivity testing counting frame can be increased in an accumulated mode.
Furthermore, the energy storage elements of the main board can be selected by clicking the capacitance value, and the panel displays the current selected energy storage element value.
Furthermore, when the device is started for use, the device defaults to a manual mode, a button of the manual mode is touched, the device is switched to an automatic mode, wherein in the manual mode, the button of starting ignition is clicked once, the ignition sensitivity test is performed once, the automatic mode is used for continuously performing 10 times of ignition tests, and when the automatic ignition is performed, the ignition can be stopped by clicking 'the ignition is cancelled'.
The invention has the advantages of
The ignition sensitivity inspection device designed by the invention adopts a touch screen for display, is simple to operate and runs stably and reliably; the voltage sensitivity detection of the ignition powder head can be automatically and continuously carried out for 10 times, the total sum of the ignition times N and the total sum of the non-ignition times N' are automatically output according to a statistical chart, the sample ignition voltage value is the standard deviation s, the factor M of data validity judgment is carried out, and the voltage values of 50.00%,99.99% and 00.01% are automatically calculated; the device has a unified blasting function for the residual explosive heads which are not ignited, and is convenient for safety management; the resistance value test module of the ignition element is added, whether the ignition plate and the test fixture are connected or not is automatically detected, the value of the ignition element and the on-off of the resistor are tested, and the problem of the ignition element is solved under the condition of no ignition; in addition, the device can be used for testing the delay of the drug head, and is efficient and convenient.
Drawings
FIG. 1 is a view showing the entire connection of an ignition sensitivity detecting apparatus;
FIG. 2 is a flow chart of the method for testing the sensitivity to fire.
Detailed Description
For the purpose of making the present invention more apparent, the following detailed description of the embodiments of the present invention is provided by way of specific examples and with reference to the accompanying drawings, but it should be understood that the scope of the present invention is not limited to the specific embodiments.
The utility model provides an ignition sensitivity verifying attachment, including detecting the host computer and the inductance degree test fixture that links to each other with detecting the host computer, wherein detect the host computer and link to each other with test fixture through DB25 connecting wire, it is the aluminum alloy box structure to detect the host computer, mainly include switch, show the touch-sensitive screen, alarm indicator, high pressure indicator, the pilot lamp that charges, embedded thermal printer, data interface, communication interface, the mouth that charges, potentiometre and inside main control board, wherein switch, signal indicator, embedded thermal printer, show that the touch-sensitive screen distributes on detecting the host computer front panel, the potentiometre, communication interface, data interface and the mouth that charges distribute on detecting the host computer rear panel, inside main control board mainly includes power module, DCDC lift module, voltage sampling module, voltage output module, sensitivity adjustment module, photoelectric signal collection module, RS232 communication module, TTL serial communication module, pilot lamp drive module, data storage module, electric capacity switching module, detect the component resistance module that fires, remaining explosive cartridge explosion module.
The potentiometer is used for adjusting the sensitivity of the photoelectric sensor; the alarm indicator light is used for displaying whether the medicine head is ignited or not, and is lightened when the medicine head is not ignited, and is extinguished when the 'ignition is started' is clicked again; the high-voltage indicator lamp is used for detecting whether the capacitor is fully charged, and is lightened when fully charged and extinguished when ignited; the charging indicator light is used for displaying battery voltage, and is lightened when the voltage is less than 7V, so that undervoltage is indicated.
The RS232 communication module is used for upgrading the firmware of the main control board to realize online printing; the TTL serial port communication module is used for realizing mutual communication between the display touch screen and the internal main control board; the ignition element resistance detection module can test the resistance of the ignition element and the on-off of the resistor, the touch display screen is used for touch display output, a man-machine interaction function is achieved, 8 functional operation parts are provided, and the ignition module comprises an initial voltage setting part, a stepping voltage setting part, a starting ignition part, a parameter setting part, a manual/automatic mode switching part, a medicine head delay test part, a counting part and a restarting part.
The invention also provides a method for testing the fire sensitivity of the explosive head, which comprises the following steps:
(1) Firstly, connecting a detection clamp with a detection device, installing an ignition plate into a clamping groove on a detection clamp support plate, and firmly pressing and clamping a pressing plate;
(2) Pressing a 'switch' button on a panel of the checking device, starting the checking device, and entering a function home page interface of the checking device;
(3) Touching and pressing a 'set parameter' button on a home page interface, carrying out sensitivity adjustment and capacitance selection, and selecting a 22uF capacitor;
(4) Setting the initial voltage to be 7.1V and the stepping voltage to be 0.4V, selecting a manual or automatic mode, and touching and pressing a 'start ignition' button to test the ignition sensitivity;
(5) Clicking a ' statistics ' key to perform a data statistics function to obtain an ignition voltage statistical chart of the effective ignition explosive head, and further obtaining that the sum N of ignition times is 19, the sum N ' of non-ignition times is 20, the standard deviation s of sample ignition voltage values is 0.43, the data validity judgment factor M is 0.64, the voltage value of X50.00% is 8.77, the voltage value of X99.99% is 10.38, and the voltage value of X00.01% is 7.17.
And (4) selecting a manual mode or an automatic mode, touching and pressing a manual mode button, and switching to the automatic mode, wherein in the manual mode, clicking a 'starting ignition' button once to perform an ignition sensitivity test once, and in the automatic mode, performing 10 continuous ignition tests, and when automatically igniting, clicking 'cancelling ignition' to terminate the ignition.
When the trigger in the step (4) is pressed to start ignition, the ignition sensitivity test can be carried out, but when the detection of the fire of the medicine head is started, and when the detection of the continuous 5 medicine heads is all ignited or not ignited, a prompt of 'exceeding 5 invalid points, restarting statistics by pressing the key' appears on the interface, at the moment, the prompt information is clicked, the statistical data is cleared, and the proper starting voltage is reselected to start the ignition test.
Before the step (3), a 'medicine head delay test' button can be selected, a medicine head delay test interface is entered, and a 'start' button is clicked, so that the medicine head delay test can be carried out.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present application.
Claims (1)
1. A method for testing the fire sensitivity of a medicine head is characterized by comprising the following steps:
(1) The method is based on an ignition sensitivity inspection device, which comprises a detection host and an inductance test fixture connected with the detection host, wherein the detection host is connected with the test fixture through a DB25 connecting wire, the detection host is of an aluminum alloy box structure and mainly comprises a power switch, a signal indicator lamp, an embedded thermal printer, a data interface, a communication interface, a charging port, a display touch screen, a potentiometer and an internal main control board, the internal main control board comprises a single chip microcomputer minimum control system, a power module, a DCDC lifting module, a voltage sampling module, a voltage output module, a sensitivity adjusting module, a photoelectric signal acquisition module, a communication module, an indicator lamp driving module, a data storage module, a capacitance switching module, an ignition element resistance detection module and a residual explosive head explosion module, the communication module comprises an RS232 communication module and a TTL serial communication module, and the potentiometer is used for adjusting the sensitivity of a photoelectric sensor;
firstly, connecting a test fixture with a detection host, placing an ignition plate into a clamping groove on a test fixture support plate, and firmly pressing and clamping a pressing plate;
(2) Pressing a switch button on a panel of the detection host, starting the detection host, and entering a functional home page interface of the detection host;
(3) Touching and pressing a 'setting parameter' button on a home page interface, wherein the setting parameter button comprises sensitivity adjustment setting and capacitance selection setting, sensitivity adjustment is selected, then a potentiometer knob of a rear panel is rotated, corresponding sensitivity adjustment can be carried out, sensitivity test can be carried out after adjustment is finished, and after a signal is detected, the numerical value in a sensitivity test counting frame is increased in an accumulated mode;
(4) Setting an initial voltage and a stepping voltage, selecting a manual or automatic mode, and touching and pressing a 'starting ignition' button to test the ignition sensitivity;
(5) When the conditions meeting the statistical data are tested in use, a ' statistical ' key is clicked to perform a data statistical function, so that a fire voltage statistical graph of an effective fire head can be obtained, the total sum N of the fire times and the total sum N ' of the non-fire times are automatically output, the fire voltage value of a sample is worth a standard deviation s, and a factor M for judging the data validity is automatically calculated, and in addition, the voltage values of 50.00%,99.99% and 00.01% can be automatically calculated according to a GJB/2377A-94 lifting mathematical statistical method;
(6) The 'delay test of the medicine head' button is touched and pressed, the medicine head delay test interface is entered, and the 'start' button is clicked, so that the delay test of the medicine head can be carried out.
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| CN113639600A (en) * | 2021-08-16 | 2021-11-12 | 北京桓安芯数技术有限公司 | Ignition head ignition performance detector and detection method |
| CN114754638A (en) * | 2022-04-19 | 2022-07-15 | 华东光电集成器件研究所 | Digital detonator sensitivity test device and method |
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| CN201748870U (en) * | 2009-08-24 | 2011-02-16 | 北京维深数码科技有限公司 | Bridge wire igniting sensitivity control device |
| EP2407748A2 (en) * | 2010-07-15 | 2012-01-18 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Measuring method for a penetrator igniter |
| CN103558487A (en) * | 2013-08-08 | 2014-02-05 | 江西洪都航空工业集团有限责任公司 | Initiating explosive device circuit detection system |
| CN110186338A (en) * | 2019-05-31 | 2019-08-30 | 贵州全安密灵科技有限公司 | A kind of igniter head inductance degree detection device and detection method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201748870U (en) * | 2009-08-24 | 2011-02-16 | 北京维深数码科技有限公司 | Bridge wire igniting sensitivity control device |
| EP2407748A2 (en) * | 2010-07-15 | 2012-01-18 | TDW Gesellschaft für verteidigungstechnische Wirksysteme mbH | Measuring method for a penetrator igniter |
| CN103558487A (en) * | 2013-08-08 | 2014-02-05 | 江西洪都航空工业集团有限责任公司 | Initiating explosive device circuit detection system |
| CN110186338A (en) * | 2019-05-31 | 2019-08-30 | 贵州全安密灵科技有限公司 | A kind of igniter head inductance degree detection device and detection method |
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Address after: No. g1-208, China Sensor Network International Innovation Park, No. 200, Linghu Avenue, Xinwu District, Wuxi City, Jiangsu Province, 214028 Applicant after: Wuxi Shengjing Microelectronics Co.,Ltd. Address before: 214028 Star-Creating Incubator on the Second Floor of F11, 200 Linghu Avenue, Xinwu District, Wuxi City, Jiangsu Province Applicant before: WUXI SHENGJING ELECTRONIC TECHNOLOGY Co.,Ltd. |
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