CN200941091Y - Shock wave electric probe dynamic parameter detection device - Google Patents
Shock wave electric probe dynamic parameter detection device Download PDFInfo
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- CN200941091Y CN200941091Y CN 200620034766 CN200620034766U CN200941091Y CN 200941091 Y CN200941091 Y CN 200941091Y CN 200620034766 CN200620034766 CN 200620034766 CN 200620034766 U CN200620034766 U CN 200620034766U CN 200941091 Y CN200941091 Y CN 200941091Y
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Abstract
This utility model relates to a detection device for shock wave electronic probe dynamic parameter, comprising a reformed nail-shooting machine, a sleeve type connector, and a conical shield. One end of the connector is connected with the shooting tube of the nail-shooting machine which is provided with a piston driven by a power load and a collision device is arranged in a cavity of the connecting end of the connector and the nail-shooting machine. Two pairs of photodiode sensors and four pairs of mutually vertical pressure relief holes are fixed on the cavity wall of the connector and a disk bracket of the electronic probe to be tested is arranged on the other end of the connector. This utility model can conduct a dynamic parameter sampling inspection of the finished shock wave electronic probe, in particular to the coaxial coating electronic probe through simulating the collision process of the two-stage light gas gun to the sample. The device is characterized in simple structure, safe operation, low cost, accurate and reliable results, guaranteeing the exact quantization of the reliability and consistency of the detonation and shock compression experiment.
Description
Technical field
The utility model relates to a kind of shock wave electric probe parameter detection equipment, particularly relates to a kind of dynamic parameter pick-up unit that is used for the shock wave electric probe of test liquid material ballistic motion speed.
Background technology
Electric probe is to utilize detonation technology and impact compress technical research fluent material in High Temperature High Pressure, the sensor special of rerum natura under the extreme conditions such as cryogenic high pressure and low-temp low-pressure; Detonation is to utilize the experimental technique of explosive strong shock wave compression sample material; Impact compress is to utilize pressure gas big gun technology to drive the technology that film flying collision specimen material produces the shock-wave analog detonation wave, because the pressure that collision produces is very high, about 100 lucky handkerchiefs, temperature is very high, thousands of approximately K degree, and speed is too fast, up to 7km/s, therefore, be difficult to directly to measure the rerum natura of fluent material by by compression the time, can only measure indirectly in the velocity variations that causes by material itself by measuring shock waves.Concrete grammar is: according to the shock velocity in the fluent material that records, the time interval of promptly measuring the fixed length path on the path that shock wave passes through calculates shock velocity, can obtain the high pressure property information of fluent material in conjunction with Hugoniot relation and the law of thermodynamics.And electric probe is a sensor special spare commonly used of determining shock velocity in the fluid to be measured material in detonation and the impact compress experiment, therefore also claims the shock velocity sensor.In view of the measuring accuracy of shock velocity directly related with the rerum natura of fluid to be measured material sample under the high-temperature high-density condition, so around the manufacture craft of all kinds of shock velocity sensors be always in the industry to the research of its dynamic parameter detection method that the researchist pays close attention to.Yet up to now, above-mentioned these research still is not used to solve the consistance of actual finished product shock wave electric probe under the extreme condition of fluid to be measured material and the detection problem of dynamic parameter such as reliability all the time.
In the high-acruracy survey of impact compress experiment, consistance is meant together once tests several electric probes, the dispersion degree between the time interval that measures, and acceptable is absolute error ± 10nS usually; Next is meant the several electric probes of twice experiment successively, the dispersion degree between the time interval that measures.Standard is constant, the consistance of guaranteed measurement only, and measurement result just has comparability.And the operate as normal ratio several with the electric probe in the cisco unity malfunction during reliability is meant homogeneous or homogeneous is not tested, the acceptable level is that standard deviation is not more than 2% usually.The detection of dynamic parameters such as the consistance of electric probe and reliability, but must be through the check of a large amount of repeated experiments data.Comprise that the safety practice input is all very high because relate to the experimental cost of detonation or impact compress again, do not allow a bit human error to occur,, also will guarantee reliability simultaneously so require the repeatability of simulated experiment necessarily will get well.Its technical guarantee is that the selected shock velocity sensor parameters of requirement don't fail to have good consistance and reliability.Consider that all plated film piezoresistive transducer electric probes all have the low speed collision difference in response, high velocity impact responds, and the common electrical probe singularity that insulativity is difficult to guarantee in fluent material, corresponding detonation and impact compress experiment all need to use plated film coaxial electrical probe, so system is inevitable relatively poor to the response of low velocity impact ripple.Poor to what degree, but never have quantifiable criterion.The utility model designs in order to address this problem.
Ail shooter is modern tightening technology commonly used, easy and advanced impulsive force generation instrument in finishing and construction work.Have characteristics such as semi-automatic piston reset, semi-automatic ejection.Similar with common firearms principle, during the ail shooter percussion, striker causes the nail shooting pill fire in a stove before fuel is added gives off energy the burning of interior dress propulsive charge, and driven plunger directly hammers into iron and steel, concrete, matrixes such as brick setting or rock with the steel nailing.Because operation relates to priming system, only under the effective situation of load, firing action is implemented in ability arming in the design employing of ail shooter.And can select S5.6 * 16 types respectively for use according to the needs of different impact velocities, or J55.6 * 16, or the redness of especially big power, or the yellow of big power, or the green of middle power, or the nail shooting pill of the grey of the brown and minimum power of little power.Therefore, if can utilize this percussion principle of ail shooter with impulsive force generation instrument, in conjunction with the photoelectric speed measuring technique, design a kind of pick-up unit, this pick-up unit is used in the shock wave electric probe fluid to be measured material dynamics parameter detected this invention task of the present utility model just place.
Summary of the invention
The purpose of this utility model is will provide a kind of and can simulate the impact process by experiment, the finished product shock wave electric probe is carried out dynamic random sampling Detection, small-sized, simple in structure, cheap and reliably and the shock wave electric probe dynamic parameter pick-up unit of handling safety.This device can provide the reliable lower limit of self-short-circuit type plated film coaxial shock wave electric probe dynamic parameter, thereby for realizing accurately quantizing detonation and the impact compress experimental result provides reliable assurance.
The utility model shock wave electric probe dynamic parameter pick-up unit, the basic thought of design is exactly to utilize the engineering ail shooter to have the percussion principle of impulsive force generation instrument, change system into small-sized, cheap ail shooter and shock velocity sensor characteristic detection device reliably, detect in conjunction with the dynamic parameter of photoelectric speed measuring technique shock wave electric probe; This device provides a kind of feasible detection method device for realizing accurately quantizing the experiment of detonation and impact compress.
The technical scheme that the purpose of this utility model is made of following measure realizes.
The utility model shock wave electric probe dynamic parameter pick-up unit, comprise the ail shooter of changing system into the surge pressure generator, the taper shield, telescopic connector, connect the nailing pipe of the ail shooter of phase precision-fit with it in the thorax of telescopic connector one end, the piston that nailing pipe built-in is promoted by nail shooting pill, bolt is connected connector with nailing pipe secure fixation, the port that is connected abutting end in the connector thorax with the nailing pipe is provided with an impinger that can move freely, two pairs of photodiode sensors also are installed on the cavity wall of connector and four pairs of relief holes are set, the other end of connector is installed the disk ring carriage of tested electric probe, cooperates the connector arranged outside of an end that blocking mechanism is arranged with the nailing pipe.
In the utility model device, the photodiode sensor of installing on the cavity wall of described telescopic connector is first pair of photo-electroluminescence diode and second pair of photoelectric receiving diode of installing respectively on connector symmetric cavity body wall.
In the utility model device, four pairs of relief holes that are provided with on the cavity wall of described telescopic connector are the first two pairs of vertical relief holes that are provided with respectively on connector symmetric cavity body wall, with the second two pairs of vertical relief holes.
In the utility model device, be connected the impinger of the port setting of precision-fit end in the described connector thorax with the nailing pipe, its overall diameter is designed to can be free to slide-10 microns just with the interior diameter of connector cavity, and promptly error is negative 10 microns.
In the utility model device, described telescopic connector is with high temperature resistant age hardening type nickel-base alloy steel, or NiCrMoV-45 high-temperature alloy steel material.
In the utility model device, be to strengthen radial strength, prolong the serviceable life of connector, disk ring carriage one end that described telescopic connector is installed tested electric probe is used and is carried out the cylinder body sealing with connector with the year wheeled enhancing hot jacket of material and handle.
In the utility model device, the disk ring carriage of the tested electric probe of described installation is provided with the electric probe mounting hole.
In the utility model device, described tested electric probe disk ring carriage is made of high pressure polyethylene materials processing.
In the utility model device, the diameter of disk ring carriage is 36 millimeters of φ, embeds the steel loop of 8 millimeters of φ in the center of disk ring carriage.
The utility model compared with prior art has following characteristics:
1, the utility model device utilizes ail shooter to have the percussion principle of impulsive force generation instrument, successfully designs shock wave electric probe dynamic parameter pick-up unit.
2, the utility model shock wave electric probe dynamic parameter pick-up unit, simple in structure, volume is little, handling safety is reliable.
3, the utility model shock wave electric probe dynamic parameter pick-up unit, can measure the consistance and the reliability of detected electric probe by simulated experiment simulated crash device, the finished product shock wave electric probe is carried out the stochastic and dynamic sampling Detection, provides the reliable lower limit of shock wave electric probe dynamic parameter.
Description of drawings
Connector construction synoptic diagram in Fig. 1 the utility model device
The ail shooter structural representation of changing a social system in Fig. 2 the utility model device
Tested electric probe places the structural representation on the annulus carriage in Fig. 3 the utility model device
Photoemission in Fig. 4 the utility model device/receiving circuit figure
Photoelectric velocity measurement signal graph in Fig. 5 the utility model device
Tested electric probe time interval signal figure in Fig. 6 the utility model device
In the accompanying drawing, 1 taper shield, 2 years wheeled enhancing hot jackets, 3 disk ring carriages, 4 tested electric probes, 5 first pairs of photoemission diode sensors, 6 second pairs of photoelectric receiving diode sensors, 7 the first two pairs of vertical relief holes, 8 the second two pairs of vertical relief holes, 9 impingers, 10 telescopic connectors, 11 bolts, 12 blocking mechanisms, 13 nailing pipes, 14 pistons, 15 steel loops, 16 electric probe mounting holes, 17 steel core impingement areas, 18 cushion pads, 19 magazines, 20 nail shooting pills, 21 striker mechanism, 22 cocking mechanisms, 23 insurance institutions, 24 ail shooter handles.
Embodiment
Below in conjunction with accompanying drawing and with embodiment and the experiment testing process the utility model will be further described.
Among Fig. 1, the processing of taper shield 1 usefulness instrument steel matter, telescopic connector 10 adopts high temperature resistant age hardening type GH4033 nickel-base alloy steel processing and fabricating, wherein requires the degree of eccentricity in axial each hole in the connector to be not more than 1.5%, and connector thorax inside surface roughness Ra is not more than 1.6 microns.Connect the nailing pipe 13 of phase precision-fit with it in the thorax of connector 10 1 ends, the piston 14 that nailing pipe 13 built-in is promoted by nail shooting pill 20 reliably is connected and fixed connector 10 and nailing pipe 13 with bolt 11; The port that is connected the precision-fit end at connector with the nailing pipe is provided with an impinger 9 with tool steel processing, and the average quality of impinger 9 is 25.5 ± 0.1 grams, and the internal diameter of its overall diameter and telescopic connector can be free to slide just, and its error is negative 10 microns; Installing as first pair of photoemission diode 5 of sensor and the centre distance between 6, two pairs of photoelectric receiving diodes of second pair of photoelectric receiving diode on the cavity wall of connector two symmetries respectively is 10 millimeters, is used to measure the flying speed of impinger; For preventing that High Temperature High Pressure from advancing airflow influence connector, tested electric probe and photoelectric velocity measurement system, the first two pairs of vertical relief holes 7 also also are set, respectively on the cavity wall of connector two symmetries with the second two pairs of vertical relief holes 8; The disk ring carriage 3 of tested electric probe 4 is installed and is fixed at the connector other end; Be to strengthen radial strength, prolong the serviceable life of connector, connector is installed tested electric probe disk ring carriage one end and is used and carry out the cylinder body sealing with connector with the year wheeled enhancing hot jacket 2 of the high temperature resistant age hardening type GH4033 nickel-base alloy steel of material and handle; Also cooperate two outsides up and down of an end that blocking mechanism 12 is set respectively with the nailing pipe at connector, when nail shooting pill 20 loaded, blocking mechanism moved, and removed the safety effect of former ail shooter.
Among Fig. 3, the disk ring carriage 3 of tested electric probe 4 adopts the high pressure polyethylene processing and fabricating, its diameter is 36 millimeters of φ, the center embeds the steel loop 15 of 8 millimeters of φ, be to arrange 6 tested electric probe groups of self-short-circuit type coaxial by six five equilibriums on 16 millimeters the anchor ring in disk ring carriage 3 diameter phi, can arrange 13 self-short-circuit type coaxial electric probes at most.Tested electric probe group end face is calibrated with optical parallel, and it is 2 millimeters that its teat is told frame length.
Among Fig. 4, Vdd is the power supply of+5 volts of circuit, the signal that photoemission diode LED1 and LED2 send is received by photoelectric receiving diode D1 and D2, the signal that diode D1 and D2 receive is respectively after two 4001 amplifiers amplify, again respectively through resistance R 4 and R5 output negative pulse, resistance R 1, R2 and R3 are stake resistance.
Embodiment
Used device of present embodiment and instrument: 1, select the nail shooting pill of yellow J5.6 * 16 intermediate yields to test as the pressure-driven source; 2, broadband storage oscilloscope; 3,32 road time interval recorders; 4, before experiment, need carry out obtaining after the repeatedly self-correcting first passage and second channel average out in relative time delay-24.8 microsecond of optical trigger.
Be the specific operation process that the utility model shock wave electric probe dynamic parameter pick-up unit is used to test below:
Before the experiment, it is working properly to detect photoelectric sensing circuit, and impinger 9 is packed in the connector 10, is slidingly matched between them.The disk ring carriage 3 of tested electric probe will be installed then in advance, electric probe 4 is installed in the electric probe mounting hole 16, be fixed on the port of connector with 502 Instant cements, with pack into ail shooter magazine 19 after the repacking of a jaundice look nail shooting pill, blocking mechanism 12 of She Zhiing and insurance institution 23 make striker 21 be in firing position then; Use taper shield 1 in desirable place at last, all can as wall or ground supports.
During experiment, prop up the steel loop 15 of center of the disk ring carriage 3 of tested electric probe 4 securely with taper shield 1, like this can be in than the low speed collision experiment, cause measuring error for preventing to move behind the electric probe disk ring carriage.Consider from safety and two aspects of the enough high thrusts of generation, with the yellow intermediate yield nail shooting pill in J5.6 * 16 as the pressure-driven source, with Fig. 4 photoemission diode and photoelectric receiving diode sensor and cmos digital IC lower edge triggering shaping circuit, provided the time difference signal of high-speed motion impinger through 10 millimeters fixed length distances, impinger 9 flights trigger when blocking light path and provide this signal of signal by the demonstration of broadband storage oscilloscope, and record correspondent voltage waveform.When impinger and the collision of tested electric probe group, at first puncture the counting electric probe that opens the door that is provided with separately, also can in the electric probe array, choose, DC voltage 100 Fu Gaoyawangluoyuan are by forming the tested electric probe group discharge of short circuit then, produce the slightly variant count pulse of closing the door, these counting pulse signals carry out recording processing with 32 road time interval recorders.
Under the promotion of nailing pipe 13 inner carriers 14, impinger 9 can be realized normal impact with the electrical resistivity survey dial array on the tested electric probe 4 disk ring carriages 3, its key is that the design of impinger axial length should make piston rod after finishing whole kinetic energy conversions, be unlikely to damage the cushion rubber bumper 18 of ail shooter, the blocking mechanism 12 of connector 10 arranged outside, when nail shooting pill 20 loads, the blocking mechanism action, remove the safety effect of former ail shooter, so that operations such as adjustment positions.By transforming the trigger 22 of ail shooter, the insurance institution 23 of She Zhiing only cancels this insurance institution in addition, could carry out firing action.
Among Fig. 5, provide the photoelectric velocity measurement result of the lower edge triggering of the following jump pulse that produces when light path is blocked in impinger flight.Wherein trigger circuit second channel signal lag first passage 19.4 microseconds are tried to achieve easily in conjunction with the self-correcting data.Self-correcting is performed such: when not pulling the trigger, open the power supply of closing photoelectric sensor then simultaneously, simulation produces two synchronous jump pulses down.Owing to exist the distribution parameter of element and signal cable to make two signals certainly exist the mistiming when reaching counter.Lag behind so record the intrinsic time of circuit by self-correcting, deduct in actual measured results then that to be actual time poor; Second channel signal actual hysteretic first passage 19.4+24.8=44.2 microsecond, corresponding impinger movement velocity is 226.2 meter per seconds.The result shows, this device can produce subsonic speed-velocity of sound be 340 meter per seconds-impact velocity, can regulate impact velocity by the nail shooting pill of replacing different colours, this is the another characteristics of this device.
Among Fig. 6, the tested electric probe conducting state signal that records with 32 tunnel time instrument.Wherein, 1～No. 4 tested electric probe is normally punctured, although proofread and correct with optical parallel, ON time was distributed between 4～7 nanoseconds, and 5～No. 6 probes are triggered in advance, give the information that makes mistake.
Above-mentioned measured data result shows that when using J5.6 * 16 (yellow) intermediate yield nail shooting pill as the pressure-driven source, the flying speeds that record 5.5 ± 0.1 gram steel impingers are 226.2 meter per seconds; Though the impact velocity that this device provides is more much lower than (1～7,000 meter per second) of two-stage light gas gun, demarcate 4～13 needs simultaneously with batch electric probe group consistance and reliability but still can satisfy.For example, the reliability and the consistance of 1～No. 4 electric probe are satisfactory, 5～No. 6 then may be to exist flaw to cause test failure when making, but is not less than 66.67% with batch actual measurement reliability of 6 probes of sampling, and the consistance of representing with standard deviation is not more than 1.14%.Draw thus, the utility model is for realizing accurately quantizing detonation and the impact compress experimental result provides a kind of feasible dynamic parameter pick-up unit.
Claims (9)
1. shock wave electric probe dynamic parameter pick-up unit, it is characterized in that: comprise the ail shooter of changing system into the surge pressure generator, taper shield (1), telescopic connector (10), the nailing pipe (13) that connects ail shooter with matching in the thorax of telescopic connector one end, the piston (14) that nailing pipe built-in is promoted by nail shooting pill, the port that is connected abutting end in connector (10) thorax with nailing pipe (13) is provided with an impinger that can move freely (9), two pairs of photodiode sensors also are installed on the cavity wall of connector and four pairs of relief holes are set, the other end of connector is installed the disk ring carriage (3) of tested electric probe (4).
2. device according to claim 1, it is characterized in that: the photodiode sensor of installing on the cavity wall of described telescopic connector (10), be first pair of photo-electroluminescence diode (5) and the second pair of photoelectric receiving diode of on the symmetric cavity body wall, installing respectively (6).
3. device according to claim 1, it is characterized in that: four pairs of relief holes that are provided with on the cavity wall of described telescopic connector (10), be the first two pairs of vertical relief holes (7) that on the symmetric cavity body wall, are provided with respectively, with the second two pairs of vertical relief holes (8).
4. device according to claim 1 is characterized in that: be connected the impinger (9) of the port setting of abutting end in described telescopic connector (10) thorax with nailing pipe (13), its overall diameter is designed to can be free to slide just with the interior diameter of connector cavity
-10 microns.
5. device according to claim 1 is characterized in that: described telescopic connector (10) adopts high temperature resistant age hardening type nickel-base alloy steel to make, or NiCrMoV-45 high-temperature alloy steel material.
6. device according to claim 1 or 5 is characterized in that: the end that described telescopic connector (10) is installed the disk ring carriage (3) of tested electric probe is used and is carried out the cylinder body sealing with connector with the wheeled enhancing hot jacket of year (2) of material and handle.
7. device according to claim 1 is characterized in that: the disk ring carriage (3) of the tested electric probe of described installation (4) is provided with electric probe mounting hole (16).
8. device according to claim 1 is characterized in that: described tested electric probe disk ring carriage (3) is made of high pressure polyethylene materials processing.
9. according to claim 1 or 8 described devices, it is characterized in that: the diameter of disk ring carriage (3) is 36 millimeters of φ, and the center of disk ring carriage embeds the steel loop (15) of 8 millimeters of φ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034766 CN200941091Y (en) | 2006-06-29 | 2006-06-29 | Shock wave electric probe dynamic parameter detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620034766 CN200941091Y (en) | 2006-06-29 | 2006-06-29 | Shock wave electric probe dynamic parameter detection device |
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| Publication Number | Publication Date |
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| CN200941091Y true CN200941091Y (en) | 2007-08-29 |
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| CN 200620034766 Expired - Fee Related CN200941091Y (en) | 2006-06-29 | 2006-06-29 | Shock wave electric probe dynamic parameter detection device |
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| CN (1) | CN200941091Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620659A (en) * | 2012-04-16 | 2012-08-01 | 浙江荣鹏气动工具有限公司 | Nail gun test device and nail gun test method |
| CN111537055A (en) * | 2020-05-18 | 2020-08-14 | 商丘师范学院 | Experimental device and experimental method for arranging ultrahigh-pressure shock wave measurement probes |
| CN115655978A (en) * | 2022-12-09 | 2023-01-31 | 西南交通大学 | Experimental device and method for measuring wave front evolution of disturbance shock waves in material |
-
2006
- 2006-06-29 CN CN 200620034766 patent/CN200941091Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102620659A (en) * | 2012-04-16 | 2012-08-01 | 浙江荣鹏气动工具有限公司 | Nail gun test device and nail gun test method |
| CN102620659B (en) * | 2012-04-16 | 2014-05-07 | 浙江荣鹏气动工具有限公司 | Nail gun test device and nail gun test method |
| CN111537055A (en) * | 2020-05-18 | 2020-08-14 | 商丘师范学院 | Experimental device and experimental method for arranging ultrahigh-pressure shock wave measurement probes |
| CN115655978A (en) * | 2022-12-09 | 2023-01-31 | 西南交通大学 | Experimental device and method for measuring wave front evolution of disturbance shock waves in material |
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