CN105043634A - Method for measuring detonation pressure of explosive in blast hole - Google Patents

Method for measuring detonation pressure of explosive in blast hole Download PDF

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CN105043634A
CN105043634A CN201510401948.2A CN201510401948A CN105043634A CN 105043634 A CN105043634 A CN 105043634A CN 201510401948 A CN201510401948 A CN 201510401948A CN 105043634 A CN105043634 A CN 105043634A
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explosive
detonation pressure
contrast medium
lump
detonation
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CN105043634B (en
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李晓杰
王小红
闫鸿浩
王宇新
孙明
王亚鹏
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Dalian University of Technology
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Dalian University of Technology
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Abstract

The invention provides a method for measuring the detonation pressure of an explosive in a blast hole. The method is characterized in that a continuous resistance wire probe is adopted as a sensing element for measuring detonation waves and shock waves; a contrast medium and a resistance wire probe are adopted to form a lumped sensor for explosive detonation testing; transmission trajectories of detonation waves of the explosive and transmission trajectories of shock waves in the contrast medium are measured; and detonation pressure of the explosive is calculated according to an impedance matching method principle. The lumped sensor can be directly arranged in a blast hole of actual engineering blasting and can simultaneously measure the detonation velocity and the detonation pressure of the explosive; since the test method only needs one test loop, the method can be conveniently used in an engineering field, is more economical and practical, and is suitable for tests under extreme conditions such as underwater blasting and large-explosive quantity explosion. With the test method adopted, the decaying process of the shock waves in the contrast medium can be observed continuously, and linear segments of the shock waves in the impedance matching method are not needed to be theoretically estimated, and therefore, test results are more reliable.

Description

The measuring method of explosive detonation pressure in a kind of big gun hole
Technical field
The invention belongs to blasting technique field, relate to a kind of measuring method of explosive detonation pressure, refer in particular to a kind of method directly measuring explosive detonation pressure in actual big gun hole at demolition site.
Background technology
Explosive detonation pressure is called for short: detonation pressure is the important parameter in explosive, explosion effect research, blasting engineering.Up to now, people have developed the method for a lot of measurement explosive detonation pressure, are roughly divided into and directly measure and indirectly compare and measure two class methods.One of typical method that explosive detonation pressure is directly measured, the pressure drag method [Xiong Changyan directly burying copper-manganese sheet equal pressure sensor in explosive underground, electromagnetic method and pressure drag method measure the exploration [J] of detonation pressure simultaneously, explosion and shock, 1984,4 (3): 79-81.], by the resistance variations of circuit measuring pressure drag sheet and then measure explosive detonation pressure.The direct measuring method of another kind of detonation pressure is electromagnetic method [1]explosive is placed in the magnetic field of fixing field intensity, buries Laplace particle velocity meter wherein underground, move together with detonation gas at explosive detonation hourly velocity meter, velograph cutting magnetic line produces electric signal and records detonation gas movement velocity, can calculate explosive detonation pressure according to surveyed detonation gas velograph.Fiber grating laser interference is directly buried in addition underground to measure the research [Wei Lin, explosive detonation pressure test technical research [D], Northcentral University Master's thesis tutor: Wang Gao, 2012.] of detonation pressure in explosive.The advantage of above several method can directly measure to obtain detonation pressure, reliable test result.But the pressure drag sheet of pressure drag method is easy to by explosive damage, the local microjet especially in powder type explosive and grain powder and focus can destroy pressure drag sheet very soon, to such an extent as to pressure drag method is difficult to measure granular and powder type explosive detonation pressure.Electromagnetism rule must arrange fixing magnetic field outside explosive, and measurement mechanism is complicated, usually also just for the test of military explosive in laboratory.Although the test of fiber grating laser interference is the very promising method of one, technology is still immature at present.The method also having explosive detonation pressure in a kind of direct measurement big gun hole is in explosive, place the piezoeletric quartz sensor [Liao Xiankui etc. of tourmaline one class, in deep hole, moisture explosion velocity of explosive studies [J] with the on-the-spot test of relative detonation pressure, engineering explosion, 1999,5 (3): 6-10.], this method has two shortcomings, the validity of the measurement results of piezoeletric quartz sensor under the detonation pressure magnitude of 1.0 ~ 10.0GPa such as first tourmaline; It two is that each test all can be demolished and consumed expensive piezoeletric quartz sensor, and testing cost is very high.
The measuring method indirectly compared of explosive detonation pressure is a lot, its ultimate principle is all based on impedance match method, be placed in contrast medium by explosive and ignite, try to achieve explosive detonation pressure by particle velocity after measuring detonation and being passed to shock velocity in contrast medium or ripple.This method is often divided into by used contrast medium difference: organic glass method [Zeng Guiyu, tall and big unit etc., the detonation pressure [J] of organic glass method test nitrolite, war industry's journal, 2009, 30 (5): 541-545.], adopting water tank method [Xue Pengshou, Wang Shuping, large dose adopting water tank method measures the research [J] of explosive detonation pressure, explosive wastewater, 1992, (2): 10-19.], diiodomethane method [Yu Deyang, to a kind of new detonation pressure method of testing-diiodomethane method-research [J], explosion and shock, 1985, 5 (2): 69-72.], air method [Fu Zhirong, Chen Yongfu, air shock wave method is utilized to measure commercial explosive detonation pressure [J], mining metallurgical engineering, 1984, 4 (3): 1-8.] etc., velocity of wave, free face particle velocity and explosive and contrast medium interface speed is measured be divided into different from parameter by position measured in contrast medium, the means of testing adopted mostly is high-speed photography, light probe, laser interference test the speed, electric probe etc.As: organic glass method, adopting water tank method, diiodomethane method, the transparent mediums such as air method can use High frequency photographing measurement shock wave, equally also can use electric probe [Zheng Feng etc., the detonation pressure [J] of commercial explosive is measured by the water tank electrical resistivity survey skill of handling needles, mine safety, 2003, 34 (6): the 40-42. yellow third of the twelve Earthly Branches are raw, commercial explosive detonation pressure [J] is measured with sulphur block electric probe, explosive, 1994, 32 (6): 1-4.] or light probe measure [Yu Deyang, to a kind of new detonation pressure method of testing-diiodomethane method-research [J], explosion and shock, 1985, 5 (2): 69-72.] shock velocity.Also useful laser displacement interference rate meter DISAR measures the method [Huang Wenbin etc. of the determination detonation pressure of interface particle velocity, TA01 explosive Measurement of detonation pressure [C], energetic materials in 2014 and the academic Conference Papers collection of Desensitive ammunition technology, 2014:488-489.].Therefore impedance match method there is no too large restriction to adopted contrast medium, and the acoustic impedance of contrast medium is more close to explosive in theory, and measured detonation pressure is more accurate; Moreover, by adopted method of testing determine use the character of contrast medium, as: flash spotting DISAR, high-speed photography need adopt transparent medium etc.The advantage of impedance match method is applied widely, and adoptable means of testing is also more, but most test macro is all comparatively complicated, so current Measurement of detonation pressure technology is all almost for the explosive property research in laboratory.
As everyone knows, the detonation of a lot of explosive is at nonideality, especially industrial mixed explosive, even if after the explosive Fabrication parameters such as explosive component, mixing uniformity, granularity are determined, its detonation property is still subject to size of powder charge, loading density, humidity, temperature, environmental pressure, by the impact of the external environment conditions such as explosion properties very greatly, the detonation test result of the indoor small pit goaf of ground experiment is directly used in actual blasting engineering and often has very large error.And at present accurate blasting engineering design is badly in need of determining the detonation property of explosive under Practical Project service condition with quality control, for this reason, a kind of directly method of measurement explosive detonation pressure in hole, big gun hole at the scene of invention, to solve Practical Project demand.
Summary of the invention
The object of this invention is to provide a kind of method measuring explosive detonation pressure in actual big gun hole, to solve Practical Project demand.
Technical scheme of the present invention is, adopts continuous resistance silk probe as the sensing element measuring detonation wave and shock wave, measures the shock motion track in detonation wave and contrast medium by impedance match method principle simultaneously, and then calculates acquisition explosive detonation pressure.Namely lay one section of contrast medium on the top of big gun hole explosive, arrange a continuous resistance silk probe in the middle, make a part for this resistance wire probe be embedded in explosive, another part is embedded in contrast medium.When in big gun hole during explosive detonation from bottom to top, obtained the explosion velocity of explosive by the resistance wire probe portion measurement in explosive, the probe portion in contrast medium records shock wave track wherein; Then, calculated the detonation pressure of explosive by explosion velocity and shock velocity with impedance matching principle.
A measuring method for explosive detonation pressure in big gun hole, step is as follows:
Making lump explosive detonation pressure sensor 7, according to blasthole diameter system for loading the cylindrical shell container 1 of contrast medium and explosive, arranging dividing plate 2 in the middle part of cylindrical shell container 1, continuous resistance silk probe 3 is installed through dividing plate 2 in the axis along hydrostatic column 1; Contrast medium 4 is filled in the second half section cylindrical shell container 1 at continuous resistance silk probe 3 tail end place, continuous resistance silk probe 3 tail end is at lump explosive detonation pressure sensor 7 by probe tail end wiring 6, and the first half section cylindrical shell container 1 at continuous resistance silk probe 3 head end place is reserved dynamite charge district 5;
Fill explosive 8 by the dynamite charge district 5 of lump explosive detonation pressure sensor 7, connect measuring circuit, then lump explosive detonation pressure sensor 7 is equipped with in the big gun hole of explosive and detonator, and with the explosive close contact in big gun hole, finally filling big gun hole; Measuring circuit is connected with acquisition and recording instrument, and acquisition and recording instrument is arranged pre-trigger state, wait to be recorded;
After being detonated in big gun hole, the resistance change curve in time of acquisition and recording instrument record continuous resistance silk probe 3, the first half section of lump explosive detonation pressure sensor 7 is embedded with the continuous resistance silk probe 3 segment record explosive detonation wave propagation track in explosive; The continuous resistance silk probe 3 sections that the second half section of lump explosive detonation pressure sensor 7 is embedded in contrast medium 4 records the propagation trajectories of shock wave in contrast medium 4; Finally obtain detonation wave speed and shock velocity, calculate explosive detonation pressure by shock wave impedance matching principle.
Described cylindrical shell container 1 diameter is 0.8 ~ 0.95 times of aperture, big gun hole, and the case material of cylindrical shell container 1 is paper shell or anti-static plastic, below thickness of shell 6.0mm.
In described lump explosive detonation pressure sensor 7, in the second half section, the height of contrast medium 4 is 0.5 ~ 1.5 times of its diameter.
In described lump explosive detonation pressure sensor 7, in first half section, the height of dynamite charge is 1.0 ~ 4.0 times of its diameter.
Described contrast medium 4 is liquid or solid; Liquid comprises organic liquid, oil, water and regulates the various brine solutions of Media density with salt; Solid comprises various metal and nonmetallic inorganic body of powder, wax, resin, rubber, plastics, hypo, sal glauberi and low intensive cement, gypsum.
Described dividing plate 2 is duroplasts or organic glass, thickness 0.1 ~ 0.8mm; When contrast medium 4 is solid, dividing plate 2 is not set; When contrast medium 4 be liquid or non-sintered body powder time, lump explosive detonation pressure sensor 7 median septum 2 is duroplasts or organic glass, thickness 0.1 ~ 0.8mm.
Above-mentioned explosive Measurement of detonation pressure method also can deteriorate to the detonation pressure method of testing in ground experiment place or laboratory.When directly measuring explosive detonation pressure, as long as fill explosive 8 by the dynamite charge district 5 of lump explosive detonation pressure sensor 7, connecting measuring circuit, adopting plane wave generator full surface initiation explosive 8 at the tail end of lump explosive detonation pressure sensor 7; The shock velocity of the explosion velocity that the resistance wire probe 3 in lump explosive detonation pressure sensor 7 can record equally and contrast medium 4, and then explosive detonation pressure can be obtained.
According to impedance match method measuring principle, should be hard-corely require transparent medium unlike flash spotting to used contrast medium 4 material in above-mentioned measuring method, but need to record in advance the impact adiabatic equation of its data segment used or claim shock Hugoniot.In theory the impact impedance of contrast medium 4 and the impact impedance of explosive more close, the shock wave pressure in contrast medium is also more close to the detonation pressure of explosive, and Measurement of detonation pressure result precision is higher.For this reason, the contrast medium selected can liquid also can be solid, when using liquid, need only note the sealing of lump explosive detonation pressure sensor 7, prevent fluid seepage.Adoptable fluent material comprises various organic liquid, oil, water, and regulates the various brine solutions of Media density with salt, from safety and environmental protection angle, should adopt organic liquid and brine solution that toxicity is less; From being easy to, sealing angle, should not use the organic solution that dissolving power is stronger; From with the compatibility of Industrial Ammonium Nitrate Explosive, not recommendation nitrite and hypochlorite solutions.Adoptable solid material comprises various metal and nonmetallic inorganic body of powder, the superpolymer such as wax, resin, rubber, plastics, the low melting point such as hypo, sal glauberi salt, and low intensive cement, gypsum etc.; From preventing blasting flyrock angle, the not not breakable block materials such as recommendation metal, cement that intensity is higher, but when guaranteeing safe in test site or laboratory, also can adopt block materials.When using solid contrast's medium, in lump explosive detonation pressure sensor 7, preferably removing way-board 2, explosive is directly contacted with contrast medium, thoroughly eliminate the impact of way-board 2 shock wave.When using liquid, non-sintered body powder, in lump explosive detonation pressure sensor 7, way-board 2 uses the good closely knit thing of the rigidity such as duroplasts, organic glass to make, and thickness 0.1 ~ 0.8mm, to reduce the impact of way-board 2 shock wave.
When making lump explosive detonation pressure sensor 7, wherein cylindrical shell container 1 diameter is determined according to surveyed blasthole diameter, big gun hole is not easily loaded when the external diameter of cylindrical shell 1 is larger, external diameter is too small is unfavorable for that the side direction making full use of blasthole hole wall restriction shock wave and detonation wave is sparse, facts have proved, cylindrical shell container 1 diameter is 0.8 ~ 0.95 times of aperture, big gun hole is the best; The case material of cylindrical shell container 1 preferably makes paper using shell, anti-static plastic is made, so that compatible with explosive; Below thickness of shell 6.0mm, to utilize the side direction of blasthole hole wall restriction shock wave and detonation wave sparse.In lump explosive detonation pressure sensor 7, the height of contrast medium 4 sections is 0.5 ~ 1.5 times of the best of its diameter, the impact of side direction rarefaction wave is highly 0.5 times of diameter in theory, i.e. radius, but test in big gun hole, hole wall constraint can reduce the impact of side direction rarefaction wave, the section of being affected is postponed, facts have proved that shock wave straight-line segment can to 0.5 ~ 1.5 times of diameter.For ensureing explosive not by the impact of initiation ends, guarantee to reach steady detonation, in lump explosive detonation pressure sensor 7, the height of dynamite charge section 5 is 1.0 ~ 4.0 times of its diameter.Way-board 2 in lump explosive detonation pressure sensor 7 only play separation explosive and contrast medium, but the flatness of separation interface to be ensured, in case affect the flatness of shock wave, so the material that rigidity is larger should be selected; For ensureing that way-board 2 is less to the shock wave effect section entered in contrast medium 4, thinner closely knit thing should be adopted to make in theory, dividing plate influence time length is about about 3 times of the shock motion time in it, the closely knit thing velocity of sound is higher, travel-time is fast, so use duroplasts, organic glass better, thickness 0.1 ~ 0.8mm; When contrast medium 4 is solid, preferably remove way-board 2, thoroughly eliminate the impact of dividing plate shock wave.
Effect of the present invention and benefit are: 1) after taking into account the explosive load in detonation pressure lump sensor, and the present invention can test in production big gun hole, does not affect blasting engineering effect, so be a kind of method can tested in a large number in actual explosion.2) owing to using the test of continuous resistance silk, only need a test loop and an acquisition channel record, this not only uses more convenient at engineering site, also improves the fiduciary level of dynamic test, also practical more economically.3) measure explosion velocity of explosive and detonation pressure, once test can obtain more explosive detonation parameter simultaneously.4) compared with flash spotting, do not have transparent contrast medium to limit, be easier to the contrast medium selecting impact impedance close with explosive, be conducive to improving detonation pressure measuring accuracy.5) compared with break-make type sonde method, the test of continuous resistance silk can the attenuation process of shock wave in Continuous Observation to contrast medium, for the straight-line segment no longer Need Hierarchy Theory estimation of shock wave, so test result is more reliable.6) through carrying out water-proofing treatment to continuous resistance silk probe, measurement circuit, may be used for submarine blast test.7) due to simple when institute's inventive method uses in the wild, reliable, so be more suitable for the test of large dose, this is more meaningful to commercial explosive, the research of underwater ordnance non-ideal detonation explosive.
Accompanying drawing explanation
Fig. 1 is the sectional view measuring explosive detonation pressure lump sensor.
Fig. 2 is the schematic diagram of sensor mounting means when measuring explosive detonation pressure in big gun hole.
Fig. 3 is measured explosive detonation ripple and the geometric locus figure of contrast medium shock wave.
Fig. 4 is linear fit and the section of the fetching data figure of explosive detonation ripple, contrast medium shock wave.
In figure: 1 cylindrical shell container; 2 dividing plates; 3 continuous resistance silk probes; 4 contrast medium; 5 dynamite charge districts; 6 probe tail end wiring; 7 lump explosive detonation pressure sensors; 8 explosives; 9 detonators; 10 blast hole stemming sections; 11 rocks; 12 detonating cords or Nonel.
Embodiment
The specific embodiment of the present invention is described in detail below in conjunction with technical scheme, drawings and Examples.
Embodiment 1:
1. detonation pressure lump sensor 7 is prefabricated: cut-off footpath 110mm, the PVC plastic pipe of wall thickness 3.0mm is as cylindrical shell container 1, wherein powder charge segment length 200mm, contrast medium segment length 292mm, contrast medium 4 adopts paraffin, continuous resistance silk probe 3 total length 492.5mm, all-in resistance is 275 ohm, and the resistivity calculating resistance per unit length silk probe is 275 Ω/492.5mm=0.5584 Ω/mm.First adopt plastic sheet to be dividing plate 2, continuous resistance silk probe 3 is fixed on pvc pipe axis, then melted paraffin, cast in the reserved contrast medium 4 sections in pvc pipe probe tails 6 place, after paraffin, remove plastic septum 2, and to measure paraffin density be ρ w0=0.88g/cm 3, comparatively its solid density 0.917g/cm 3smaller.
2. engineering site detonation pressure test: on-the-spot at blasting engineering, loads 2.5m modified powdery ammonium nitrate fuel oil mixture, puts into detonating material and Nonel detonator, reinstall about 2.5m explosive stand-by by the big gun hole of diameter 115mm, the degree of depth 8 meters.Fill same modified powdery ammonium nitrate fuel oil mixture by the powder charge section 5 of detonation pressure lump sensor 7, and weightometer calculate load explosive charge be 1239g, with powder charge section 5 volume 1700cm 3, calculating charge density is ρ 0=0.729g/cm 3.Lump sensor 7 powder charge end plastic sheeting is covered tightly, and ties up solid.Line end 6 is connected instantaneous signal recorder line, and check errorless after, lump sensor 7 is slowly put into big gun hole, until with the explosive close contact that installed in big gun hole after, clogged big gun hole, the Nonel in this big gun hole linked in blasting network.Before detonating, open record instrument enters pre-trigger state; After explosion, close registering instrument, take off sensor line, read in computing machine by recorded, pending.
3. test data process and explosion velocity, detonation pressure calculate: the test data probe resistance per unit length rate imported in computing machine is processed into length x and time t relation, obtains the curve as Fig. 3.Have Fig. 3 visible, half section, a left side for curve is the detonation wave geometric locus of explosive in explosive cavity (5), and half section, the right side is the geometric locus of shock wave in contrast medium (4) paraffin.From half section, right side paraffin shock wave track, bend after shock motion 50 ~ 60mm, conform to about 0.5 times of diameter of theoretical value and radius.In addition, the initiating terminal of left half section of explosive detonation ripple geometric locus changes suddenly due to voltage, has some jiggly fluctuations.Therefore omit the fluctuation the initial segment of detonation wave recording curve, and the straight-line segment 50mm getting paraffin shock wave track is long, repaints into Fig. 4, and utilizes least square method to carry out fitting a straight line to detonation wave and shock wave respectively, obtain following straight-line equation:
Explosive detonation ripple: x=3.5519t+92.0882 coefficient of determination R 2=0.9990
Paraffin shock wave: x=3.5958t+94.1407 coefficient of determination R 2=0.9985
Obviously, above slope in linear equation be namely detonation wave speed and paraffin shock velocity, retain three decimals after radix point, can obtain:
Explosive detonation wave velocity: D=3.552mm/ μ s
Paraffin shock velocity: D w=3.596mm/ μ s
By density p w0=0.88g/cm 3the shock adiabatic curve of paraffin, i.e. Hugoniot relation scope of application u w=0.3 ~ 2.6mm/ μ s:
D W=-0.307u W 2+2.772u W+1.518
By paraffin shock velocity D wsubstitution solves One-place 2-th Order algebraic equation, obtains particle velocity u after paraffin shock wave wtwo separate 0.825 and 8.204, omit irrational 8.204, obtain shock wave particle velocity u w=0.825mm/ μ s.According to shock wave pressure computing formula:
P W=ρ W0D Wu W
Shock wave pressure P in paraffin w=0.88 × 3.596 × 0.825=2.611GPa.
Again according to the theoretical formula of impedance match method [8,9], explosive detonation pressure P can be calculated h:
P H=P W0D+ρ W0D W)/(2ρ W0D W)
P H=2.611×(0.729×3.552+0.88×3.596)/(2×0.88×3.596)= 2.374GPa
Can also according to detonation pressure formula P h0d 2/ (K+1), obtains explosive polytropic exponent K=2.874.Finally, the test result of explosive is arranged as following table:

Claims (10)

1. the measuring method of explosive detonation pressure in big gun hole, is characterized in that following steps:
Make lump explosive detonation pressure sensor (7), according to blasthole diameter system for loading the cylindrical shell container (1) of contrast medium and explosive, arrange dividing plate (2) at cylindrical shell container (1) middle part, continuous resistance silk probe (3) is installed through dividing plate (2) in the axis along hydrostatic column (1); Contrast medium (4) is filled in second half section cylindrical shell container (1) at continuous resistance silk probe (3) tail end place, continuous resistance silk probe (3) tail end is at lump explosive detonation pressure sensor (7) by probe tail end wiring (6), and first half section cylindrical shell container (1) at continuous resistance silk probe (3) head end place is reserved dynamite charge district (5);
Explosive (8) is filled by the dynamite charge district (5) of lump explosive detonation pressure sensor (7), connect measuring circuit, then lump explosive detonation pressure sensor (7) is equipped with in the big gun hole of explosive and detonator, and with the explosive close contact in big gun hole, finally clog big gun hole; Measuring circuit is connected with acquisition and recording instrument, and acquisition and recording instrument is arranged pre-trigger state, wait to be recorded;
After being detonated in big gun hole, the resistance change curve in time of acquisition and recording instrument record continuous resistance silk probe (3), the first half section of lump explosive detonation pressure sensor (7) is embedded with continuous resistance silk probe (3) the segment record explosive detonation wave propagation track in explosive; Second half section continuous resistance silk probe (3) section be embedded in contrast medium (4) of lump explosive detonation pressure sensor (7) records the shock wave track of explosive detonation; Finally obtain detonation wave speed and shock velocity, calculate explosive detonation pressure by shock wave impedance matching principle.
2. measuring method according to claim 1, it is characterized in that, described cylindrical shell container (1) diameter is 0.8 ~ 0.95 times of aperture, big gun hole, and the case material of cylindrical shell container (1) is paper shell or anti-static plastic, below thickness of shell 6.0mm.
3. measuring method according to claim 1 and 2, is characterized in that, in described lump explosive detonation pressure sensor (7), in the second half section, the height of contrast medium (4) is 0.5 ~ 1.5 times of its diameter.
4. measuring method according to claim 1 and 2, is characterized in that, in described lump explosive detonation pressure sensor (7), in first half section, the height of dynamite charge is 1.0 ~ 4.0 times of its diameter.
5. measuring method according to claim 1 and 2, is characterized in that, in described lump explosive detonation pressure sensor (7), in first half section, the height of dynamite charge is 1.0 ~ 4.0 times of its diameter.
6. the measuring method according to claim 1,2 or 5, is characterized in that, described contrast medium (4) is liquid or solid; Liquid comprises organic liquid, oil, water and regulates the various brine solutions of Media density with salt; Solid comprises various metal and nonmetallic inorganic body of powder, wax, resin, rubber, plastics, hypo, sal glauberi and low intensive cement, gypsum.
7. measuring method according to claim 3, is characterized in that, described contrast medium (4) is liquid or solid; Liquid comprises organic liquid, oil, water and regulates the various brine solutions of Media density with salt; Solid comprises various metal and nonmetallic inorganic body of powder, wax, resin, rubber, plastics, hypo, sal glauberi and low intensive cement, gypsum.
8. measuring method according to claim 4, is characterized in that, described contrast medium (4) is liquid or solid; Liquid comprises organic liquid, oil, water and regulates the various brine solutions of Media density with salt; Solid comprises various metal and nonmetallic inorganic body of powder, wax, resin, rubber, plastics, hypo, sal glauberi and low intensive cement, gypsum.
9. the measuring method according to claim 1,2,5,7 or 8, is characterized in that, described dividing plate (2) is duroplasts or organic glass, thickness 0.1 ~ 0.8mm; When contrast medium (4) is for solid, dividing plate (2) is not set; When contrast medium (4) is for liquid or non-sintered body powder, lump explosive detonation pressure sensor (7) median septum (2) is duroplasts or organic glass, thickness 0.1 ~ 0.8mm.
10. measuring method according to claim 6, is characterized in that, described dividing plate (2) is duroplasts or organic glass, thickness 0.1 ~ 0.8mm; When contrast medium (4) is for solid, dividing plate (2) is not set; When contrast medium (4) is for liquid or non-sintered body powder, lump explosive detonation pressure sensor (7) median septum (2) is duroplasts or organic glass, thickness 0.1 ~ 0.8mm.
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