CN106153496B - The automatic rapid batch density measuring equipment of explosive compacted products and method - Google Patents
The automatic rapid batch density measuring equipment of explosive compacted products and method Download PDFInfo
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- CN106153496B CN106153496B CN201610481474.1A CN201610481474A CN106153496B CN 106153496 B CN106153496 B CN 106153496B CN 201610481474 A CN201610481474 A CN 201610481474A CN 106153496 B CN106153496 B CN 106153496B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/08—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring buoyant force of solid materials by weighing both in air and in a liquid
Abstract
The invention discloses a kind of automatic rapid batch density measuring equipment of explosive compacted products and methods, the device includes base plate, explosion-proof servo linear motor, objective table, buoyancy measuring cup, horizontal platform, electronic balance is placed on horizontal platform, the scale pan lower end of electronic balance connects buoyancy column, perforation of the buoyancy column in the middle part of horizontal platform across and be suspended on right above buoyancy measuring cup vertically, fill distilled water in buoyancy measuring cup；Electronic balance has objective table height adjustment module, bare weight measurement module, buoyant weight measurement module, temperature detection and the automatic computing module of density matching module, density and display module.The present invention measures sample buoyancy caused by buoyancy column with drainage, and the volume of each hair sample is obtained by conversion, and the weight of each hair sample is obtained using electronic balance, then calculates density.The structure of device of the present invention is simple, can calculate the density with measure batch solid matter such as explosive column automatically.
Description
Technical field
Embodiments of the present invention are related to solid density measuring field, more specifically, embodiments of the present invention are related to one
The automatic rapid batch density measuring equipment of kind explosive compacted products and method.
Background technique
Drainage is the main method for measuring density, is based on Archimedes principle, i.e. matter of the object in air and water
Amount difference shows as buoyancy, it corresponds to the quality for arranging androgynous ponding, but current sample suspension drainage is needed using superfine
Cotton rope binding or the very fine wires string bag hold, and be only capable of measuring the density of a hair sample every time, measuring process is cumbersome and imitates
Rate is very low, can not remove error caused by cotton rope or wire diameter.
Summary of the invention
The present invention overcomes the deficiencies in the prior art, provide a kind of automatic rapid batch density measure dress of explosive compacted products
It sets and method, solid density measuring low efficiency, the precision of density measure problem to be improved can solve with expectation.
In order to solve the above technical problems, an embodiment of the present invention adopts the following technical solutions:
A kind of automatic rapid batch density measuring equipment of explosive compacted products, it includes base plate, is fixed on base plate
Explosion-proof servo linear motor, the objective table by the control lifting of explosion-proof servo linear motor, the buoyancy amount that is placed on objective table
Cup, middle part have perforation and the horizontal platform parallel with base plate, and form a fixed connection relationship between the horizontal platform and base plate,
Place electronic balance on the horizontal platform, the scale pan lower end of the electronic balance connects buoyancy column, and the buoyancy column is from horizontal platform
The perforation at middle part across and be suspended on right above buoyancy measuring cup vertically, fill distilled water in the buoyancy measuring cup；The electronics day
It is flat to have a structure that
Objective table height adjustment module: according to the height of liquid level in the height of buoyancy measuring cup, buoyancy measuring cup and buoyancy column
Effective length calculates the height that objective table should be adjusted, and then control starts the height of explosion-proof servo linear motor adjustment objective table
Degree, makes the bottom end of buoyancy column not have upstream face or less；
Bare weight measurement module: mass measurement when being placed in air for sample, i.e., when every hair sample is successively placed to
When on the objective table of electronic balance, the weight M of every hair sample is recorded respectively1/M2/M3……/Mn；
Buoyant weight measurement module: for measuring equivalent mass caused by buoyancy suffered by buoyancy column when sample is placed in distilled water,
I.e. when every hair sample is successively placed in the buoyancy measuring cup for fill suitable quantity of water, often puts a hair sample and then remember into buoyancy measuring cup
The gross buoyancy that a buoyancy column is subject to is carried, until all samples are all put into buoyancy measuring cup, obtains buoyancy F1/F2/
F3……/Fn；According to buoyancy F1/F2/F3……/FnIt calculates every hair sample and causes the corresponding mass M of buoyancy suffered by buoyancy column1’/
M2’/M3’……/Mn'；
Temperature detection and density matching module: it is tied for detecting the real time temperature of the water in buoyancy measuring cup, and according to detection
The real-time density ρ of fruit acquisition waterWater；
The automatic computing module of density: being based on Archimedes principle, according to the bare weight M of every hair sample1/M2/M3……/Mn, it is floating
Weight M1’/M2’/M3’……/Mn' and the real-time density ρ that is lauched of measurement temperatureWaterAutomatically the density of every hair sample is calculated；
Display module: for showing the bare weight M of every hair sample when measuring the bare weight of every hair sample1/M2/M3……/Mn；
When measuring the buoyant weight of every hair sample, the buoyant weight M of every hair sample is shown1’/M2’/M3’……/Mn'；And it is calculated often automatic
Calculated result is shown after sending out the density of sample.
In the above-mentioned automatic rapid batch density measuring equipment of explosive compacted products, the buoyancy column is added using PVC material
Work at hollow circuit cylinder, the upper end passes through the scale pan detachable connection of screw rod and electronic balance.
The automatic rapid batch density measuring equipment of explosive compacted products according to claim 1, it is characterised in that institute
State the calculation formula of the buoyant weight of every hair sample are as follows: as n=1, Mn'=F1/g；As n >=2, Mn'=(Fn-Fn-1)/g, wherein
Mn' it is the n-th buoyant weight for sending out sample, Fn、Fn-1Gross buoyancy suffered by buoyancy column when respectively measurement n-th, n-1 send out the buoyant weight of sample.
In the above-mentioned automatic rapid batch density measuring equipment of explosive compacted products, the temperature detection and density matching module
Distilled water density meter is inside stored, and the module connect the temperature sensor with temperature sensor (111) and is vertically arranged in
Buoyancy measuring cup inner edge.
In the above-mentioned automatic rapid batch density measuring equipment of explosive compacted products, the density for calculating every hair sample automatically
Calculation formula be ρn=ρWaterMnd2/[Mn’(D2-d2-u2)], wherein ρnFor the density of the n-th hair sample, Mn、Mn' it is respectively the n-th hair
The bare weight and buoyant weight of sample, d are the cross-sectional diameter of buoyancy column, and D is the cross-sectional diameter of buoyancy measuring cup, and u is temperature sensor
Cross-sectional diameter.
In the above-mentioned automatic rapid batch density measuring equipment of explosive compacted products, the device be also provided with bare weight measurement by
Button, buoyant weight measurement button, density computed push-buttom, the ACK button terminated for confirming bare weight measurement or buoyant weight measurement process, with
And the reading button of equivalent mass is converted into for starting balance for buoyancy suffered by buoyancy column.
In the above-mentioned automatic rapid batch density measuring equipment of explosive compacted products, pass through between the horizontal platform and base plate
Stick pillar is connected and fixed, or setting side wall construction makes horizontal platform, base plate and side wall knot between horizontal platform and base plate
Sealing space is formed between structure, and active window is set in the side wall construction in order to pick and place article in sealing space.
The present invention also provides the automatic rapid batch density measuring methods of above-mentioned explosive compacted products, it uses above-mentioned dress
It sets, and the following steps are included:
(1) electronic balance power supply is opened, system reads the current water temperature of distilled water in buoyancy measuring cup automatically, and searches current
Water temperature corresponding density in distilled water density meter；Then in electronic balance system panel input buoyancy column diameter and effective length
Degree, temperature sensor diameter, beaker height, liquid level；The bottom end of the buoyancy column there is not upstream face or less；Then system carries out
Initialization, the initialization include that balance quality is reset and objective table height zero；
(2) sample to be tested, is successively placed in the bare weight measuring cup of electronic balance by starting bare weight measurement, measures weight respectively
Measure M1/M2/M3……/Mn, terminate bare weight measurement, then take out sample；Then starting buoyant weight measurement, sample to be tested is put into floating
In strength cup, after balance reading is stablized, reads sample and be put into the corresponding equivalent mass of buoyancy suffered by rear buoyancy column, do not take at this time
Upper hair sample to be tested out, continues to be put into next hair sample to be tested into buoyancy measuring cup, obtains equivalent matter in the same manner
Amount, gained equivalent mass is the buoyant weight of counter sample, and so on measure every hair sample buoyant weight M1’/M2’/M3’……/Mn',
Terminate buoyant weight measurement, then takes out sample；
(3) starting sample rate calculates, and system calculates the density of every hair sample automatically.
Technical solution of the present invention is further detailed below.
Buoyancy column of the present invention is made of hollow light weight waterproof material, for substitute tradition suspention sample cotton rope and
Metal net bag, directly bears sample and is put into buoyancy caused by fluctuation in stage after beaker to change, and then calculates the volume of sample.By
In saving using very thin plastic ties binding sample or hold what small sample and being not easy bundled using the stainless steel metal string bag
Sample can greatly improve sample using buoyancy rod structure and place efficiency, and can remove cord and hanging metal string bag metal
Buoyancy variation error caused by silk diameter, and then improve measurement accuracy.Further, since sample does not have to binding, therefore can be continuous
It is put into multiple samples to measure, and then realizes that sample rate batch calculates.
Basic principle
With Mn' represent the buoyant weight of the n-th hair sample, Fn、Fn-1Respectively represent measurement n-th, n-1 hair sample buoyant weight when buoyancy column
Suffered gross buoyancy, then:
F1=M1'g；
F2=M1’g+M2'g；
F3=M1’g+M2’g+M3'g；
……
Fn=M1’g+M2’g+M3’g+……+Mn'g；
It can be obtained by the conversion of some of the above column count formula:
As n=1, Mn'=F1/g；As n >=2, Mn'=(Fn-Fn-1)/g。
After the bare weight and buoyant weight of all samples are all measured, balance is calculated automatically, and Computing Principle is as follows:
If buoyancy column diameter is d, buoyancy measuring cup internal diameter is D, the cross-sectional diameter of temperature sensor is u, sample to be tested
Volume is V, then buoyancy cylindrical cross-section product S2=π d2/ 4, liquid level area is S in measuring cup1=π D2/4-πd2/4-πu2/4。
Buoyancy F=ρ suffered by buoyancy columnWatergV(S2/S1), the corresponding quality of buoyancy F is M ', then:
ρWatergV(S2/S1)=M ' g；
ρWaterV(S2/S1)=M '；
Enable ρWater(S2/S1)=k, then:
KV=M '；
If the volume of sample to be tested is followed successively by V1/V2/V3……/Vn, the buoyant weight of sample to be tested is followed successively by M1’/M2’/
M3’……/Mn', then have:
kV1=M1'；
kV2=M2'；
kV3=M3'；
……
kVn=Mn'；
The volume of every hair sample is obtained according to above-mentioned calculating formula:
V1=M1'/k；
V2=M2'/k；
V3=M3'/k；
……
Vn=Mn'/k；
According to the mass M of every hair sample1/M2/M3……/MnWith volume V1/V2/V3……/VnCalculate the close of every hair sample
Degree:
ρ1=M1/V1=M1k/M1'；
ρ2=M2/V2=M2k/M2'；
ρ3=M3/V3=M3k/M3'；
……
ρn=Mn/Vn=Mnk/Mn'；
That is ρn=(Mn/Mn’)·ρWater(S2/S1)=ρWater·(Mn/Mn’)·[(πd2/4)/(πD2/4-πd2/4-πu2/4)；
ρn=ρWaterMnd2/[Mn’(D2-d2-u2)]。
Above-mentioned calculating process has electronic balance system to be automatically performed.
Compared with prior art, beneficial effects of the present invention first is that: explosive compacted products of the present invention are automatically quick
The structure of batch density measuring equipment is simple, at low cost, can calculate automatically and measure batch solid matter such as explosive column
Density, it is high-efficient, precision is high and easy to operate.
Detailed description of the invention
Fig. 1 is the automatic rapid batch density measuring equipment bare weight measuring state schematic diagram of explosive compacted products of the present invention.
Fig. 2 is the automatic rapid batch density measuring equipment buoyant weight measuring state schematic diagram of explosive compacted products of the present invention.
Fig. 3 is buoyancy column front schematic view of the invention.
Fig. 4 is the A-A cross-sectional view of buoyancy column in Fig. 3.
Fig. 5 is the perspective view of buoyancy column shown in Fig. 3.
Fig. 6 is that the automatic rapid batch density measuring equipment objective table of explosive compacted products of the present invention adjusts height explanatory diagram.
Fig. 7 is the electronic balance of the automatic rapid batch density measuring equipment of explosive compacted products of one embodiment of the invention
Display screen schematic diagram.
Fig. 8 is the call graph of each module of electronic balance system.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
As shown in Fig. 1~2, the automatic rapid batch density measuring equipment of explosive compacted products of the present invention includes base plate
101, the explosion-proof servo linear motor 102 being fixed on base plate, the objective table gone up and down by the control of explosion-proof servo linear motor
103, it is placed on buoyancy measuring cup 104 on objective table, middle part has perforation and the horizontal platform 105 parallel with base plate, the water
Form a fixed connection relationship between platform and base plate, such as is connected between the horizontal platform and base plate by stick pillar 112
Fixation is connect, or side wall construction is arranged between horizontal platform and base plate to make to be formed between horizontal platform, base plate and side wall construction
Sealing space, setting active window in sealing space in order to picking and placing article in the side wall construction.Electricity is placed on the horizontal platform
Sub- balance 106, electronic balance 106 have cloche 113, the scale pan 107, contain sample 115 with bare weight measuring cup 114 when use and claim again
Weight.Its adjustable levelness of four pedestals of electronic balance.107 lower end of the scale pan of electronic balance connects buoyancy column 108, buoyancy
Perforation of the column 108 in the middle part of horizontal platform across and be suspended on right above buoyancy measuring cup 104 vertically, contained in the buoyancy measuring cup 104
There is distilled water 109.Temperature sensor 111 is set in the buoyancy measuring cup 104, which passes to electricity for real time temperature
Sub- balance is to obtain corresponding distillation water density.Under original state, 108 lower end of buoyancy column does not submerge the steaming in buoyancy measuring cup 104
In distilled water.The hollow circuit cylinder that buoyancy column 108 is preferably processed into using PVC material, the upper end can pass through screw rod 110 and electronics day
Flat 107 detachable connection of the scale pan.As seen in figures 3-5, buoyancy column includes cylinder upper end head and cylindrical hollow cylinder two
Point.Buoyancy column upper end head is threaded into cylindrical hollow cylinder, and is connect by connecting screw with electronic balance, this structure
The advantages of be buoyancy column hollow space it is easy to process and replacement.
The electronic balance that the present invention uses also has a structure that other than balance conventional structure and system
Objective table height adjustment module: according to the height of liquid level in the height of buoyancy measuring cup, buoyancy measuring cup and buoyancy column
Effective length calculates the height that objective table should be adjusted, and then control starts the height of explosion-proof servo linear motor adjustment objective table
Degree, makes the bottom end of buoyancy column not have upstream face or less；
Bare weight measurement module: mass measurement when being placed in air for sample, i.e., when every hair sample is successively placed to
When on the objective table of electronic balance, the weight M of every hair sample is recorded respectively1/M2/M3……/Mn；
Buoyant weight measurement module: for measuring equivalent mass caused by buoyancy suffered by buoyancy column when sample is placed in distilled water,
I.e. when every hair sample is successively placed in the buoyancy measuring cup for fill suitable quantity of water, often puts a hair sample and then remember into buoyancy measuring cup
The gross buoyancy that a buoyancy column is subject to is carried, until all samples are all put into buoyancy measuring cup, obtains buoyancy F1/F2/
F3……/Fn；According to buoyancy F1/F2/F3……/FnIt calculates every hair sample and causes the corresponding sample quality of buoyancy suffered by buoyancy column
M1’/M2’/M3’……/Mn'；The calculation formula of the buoyant weight of every hair sample are as follows: as n=1, Mn'=F1/g；As n >=2, Mn’
=(Fn-Fn-1)/g, wherein Mn' it is the n-th buoyant weight for sending out sample, Fn、Fn-1It is floated when respectively measurement n-th, n-1 send out the buoyant weight of sample
Gross buoyancy suffered by power column；
Temperature detection and density matching module: it is tied for detecting the real time temperature of the water in buoyancy measuring cup, and according to detection
The real-time density ρ of fruit acquisition waterWater；Distilled water density meter, and the mould are stored in the temperature detection and density matching module
Block connect the temperature sensor with temperature sensor 111 and is vertically arranged in buoyancy measuring cup inner edge；
The automatic computing module of density: being based on Archimedes principle, according to the bare weight M of every hair sample1/M2/M3……/Mn, it is floating
Weight M1’/M2’/M3’……/Mn' and the real-time density ρ that is lauched of measurement temperatureWaterAutomatically the density of every hair sample is calculated；It is automatic to calculate
The calculation formula of the density of every hair sample is ρn=ρWaterMnd2/[Mn’(D2-d2-u2)], wherein ρnFor the density of the n-th hair sample, Mn、
Mn' be respectively the n-th hair sample bare weight and buoyant weight, d be buoyancy column cross-sectional diameter, D be buoyancy measuring cup cross-sectional diameter,
U is the cross-sectional diameter of temperature sensor；
Display module: for showing the bare weight M of every hair sample when measuring the bare weight of every hair sample1/M2/M3……/Mn；
When measuring the buoyant weight of every hair sample, the buoyant weight M of every hair sample is shown1’/M2’/M3’……/Mn'；And it is calculated often automatic
Calculated result i.e. ρ is shown after sending out the density of sample1/ρ2/ρ3……ρn；Other than these data, current water temperature, close can be also shown
The parameter that degree and the parameter of some inputs such as input to realize objective table height adjustment, as shown in Figure 7.
Call relation between above-mentioned modules is as shown in figure 8, objective table height adjustment module, temperature detection and density
Matching module, bare weight measurement module, buoyant weight measurement module related data can all show on the display module, temperature detection
The automatic computing module of density is passed to density matching module, bare weight measurement module and the resulting data of buoyant weight measurement module, is passed through
The density for obtaining each hair sample after the module calculates automatically is crossed, and is shown on the display module.
For the ease of the use of above-mentioned apparatus, which is also provided with bare weight measurement button, buoyant weight measurement button, densitometer
The ACK button calculating button, terminating for confirming bare weight measurement or buoyant weight measurement process, and for starting balance for buoyancy column
Suffered buoyancy is converted into the reading button of equivalent mass.Clicking bare weight measurement button, buoyant weight measurement button, density computed push-buttom can
Bare weight measurement, buoyant weight measurement and density is respectively started to calculate automatically.
The objective table height adjustment module of device of the present invention can be such that objective table adjusts to matters height, finally make to float
The bottom end of power column there is not upstream face hereinafter, in the case where buoyancy column bottom end there is not upstream face state below, can carry out sample buoyant weight survey
Amount.In order to illustrate the principle that objective table is adjusted, we combine Fig. 6 and explain.As shown in fig. 6, H0 is that objective table is initially high
Degree, H1 is the distance between base plate and horizontal platform, and H2 is the height of buoyancy measuring cup, and H3 is liquid level in buoyancy measuring cup, H4
It is the effective length of buoyancy column, it refers to buoyancy column bottom end to the difference in height between horizontal platform；Assuming that now buoyancy column be suspended from it is floating
Right above strength cup, buoyancy column bottom end is not contacted with the water surface, then needing to make buoyancy column bottom end not have upstream face to objective table
Height be adjusted, using explosion-proof servo linear motor promote objective table increase Δ H, calculation formula are as follows:
The satisfaction when liquid level just contacts in buoyancy column low side face and buoyancy measuring cup:
H0+ Δ H+H3+H4=H1；
So Δ H=H1-H0-H3-H4；
Since beaker mouth cannot should also meet with horizontal platform lower end face contact:
H0+ Δ H+H2 < H1；
So Δ H < H1-H0-H2.
Using above-mentioned apparatus carry out batch density measure method the following steps are included:
(1) electronic balance power supply is opened, the temperature detection of system is read in buoyancy measuring cup automatically with density matching module steams
The current water temperature of distilled water, and search current water temperature corresponding density in distilled water density meter；Then in electronic balance system face
Plate inputs buoyancy column diameter and effective length, temperature sensor diameter, beaker height, liquid level；The highly automated tune of objective table
Section makes the bottom end of buoyancy column not have upstream face or less；Then system is initialized, and initialization includes the clearing of balance quality and loading
Platform height zero；
(2) cloche is opened, the starting bare weight measurement of aerial survety button is clicked, sample to be tested is successively placed on electronics day
In flat bare weight measuring cup, weight M is measured respectively1/M2/M3……/Mn, clicking ACK button terminates bare weight measurement, then takes out
Sample；Then buoyant weight measurement button starting buoyant weight measurement is clicked, a hair sample to be tested is put into buoyancy measuring cup, a hair is often put into
Powder column, the liquid level in measuring cup rise certain altitude, buoyancy value added suffered by standard buoyancy column will in the form of quality display in electricity
On sub- balance, after balance reading is stablized, reads sample and be put into the corresponding equivalent mass of buoyancy suffered by rear buoyancy column, do not take at this time
Upper hair sample to be tested out, continues to be put into next hair sample to be tested into buoyancy measuring cup, obtains equivalent matter in the same manner
Amount, gained equivalent mass is the buoyant weight of counter sample, and so on measure every hair sample buoyant weight M1’/M2’/M3’……/Mn',
Clicking ACK button terminates buoyant weight measurement, then takes out sample；
(3) it clicks density computed push-buttom starting sample rate to calculate, system calculates the density of every hair sample automatically.
The specific embodiment of measurement:
It is 25 DEG C that system, which reads current water temperature, first, and lookup distilled water corresponding density is 0.9968g/cm3；It is manually entered floating
Power column diameter 30mm and effective length are 80mm, temperature sensor diameter is 5mm, beaker diameter is 90mm, beaker height is
150mm, liquid level 80mm.Objective table automatic controlled height to buoyancy pole bottom end submerges underwater, and balance quality is reset
Bare weight and buoyant weight measurement can be carried out after being zeroed with objective table height.
Powder column sample 5 to be measured is sent out, and is measured the bare weight of each dispensing column first, be the results are shown in Table 1:
The bare weight of 15 dispensing column of table
Then the buoyant weight for measuring each dispensing column, the results are shown in Table 2:
The buoyant weight of 25 dispensing column of table
Electronic balance calculates the density of each dispensing column automatically, the results are shown in Table 3:
The density of 35 dispensing column of table
Only time-consuming 1min can more embody advantage of the invention when sample to be tested is more for above-mentioned test.
Although reference be made herein to invention has been described for explanatory embodiment of the invention, however, it is to be understood that ability
Field technique personnel can be designed that a lot of other modification and implementations, these modifications and implementations will fall in the application public affairs
Within the scope and spirit opened.It more specifically, can be to the group of theme combination layout in range disclosed in the present application
A variety of variations and modifications are carried out at component and/or layout.In addition to variations and improvements to the component parts and or layout,
To those skilled in the art, other purposes also will be apparent.
Claims (6)
1. a kind of automatic rapid batch density measuring equipment of explosive compacted products, it is characterised in that it includes base plate (101), Gu
Be scheduled on explosion-proof servo linear motor (102) on base plate, by the control lifting of explosion-proof servo linear motor objective table (103),
It is placed on buoyancy measuring cup (104) on objective table, middle part has perforation and the horizontal platform (105) parallel with base plate, the water
Form a fixed connection relationship between platform and base plate, places electronic balance (106) on the horizontal platform, the electronic balance
The scale pan (107) lower end connects buoyancy column (108), and the buoyancy column (108) is the hollow circuit cylinder being processed into using PVC material,
Upper end passes through the scale pan (107) detachable connection of screw rod (110) and electronic balance, and the buoyancy column (108) is from horizontal platform
The perforation in portion across and be suspended on right above buoyancy measuring cup (104) vertically, fill distilled water in the buoyancy measuring cup (104)
(109), directly all samples are put into one by one in buoyancy measuring cup when measuring sample buoyant weight；The electronic balance has following knot
Structure:
Objective table height adjustment module: according to the effective of the height of liquid level in the height of buoyancy measuring cup, buoyancy measuring cup and buoyancy column
Length calculates the height that objective table should be adjusted, and then control starts the height of explosion-proof servo linear motor adjustment objective table, makes
The bottom end of buoyancy column there is not upstream face or less；
Bare weight measurement module: mass measurement when being placed in air for sample, i.e., when every hair sample is successively placed to electronics
When on the objective table of balance, the weight M of every hair sample is recorded respectively1/M2/M3……/Mn；
Buoyant weight measurement module: for measuring equivalent mass caused by buoyancy suffered by buoyancy column when sample is placed in distilled water, that is, work as
When every hair sample is successively placed in the buoyancy measuring cup for fill suitable quantity of water, often puts a hair sample and then record one into buoyancy measuring cup
The gross buoyancy that secondary buoyancy column is subject to obtains buoyancy F until all samples are all put into buoyancy measuring cup1/F2/F3……/
Fn；According to buoyancy F1/F2/F3……/FnIt calculates every hair sample and causes the corresponding mass M of buoyancy suffered by buoyancy column1’/M2’/
M3’……/Mn'；
Temperature detection and density matching module: it is obtained for detecting the real time temperature of the water in buoyancy measuring cup, and according to testing result
Obtain the real-time density ρ of waterWater；
The automatic computing module of density: being based on Archimedes principle, according to the bare weight M of every hair sample1/M2/M3……/Mn, buoyant weight
M1’/M2’/M3’……/Mn' and the real-time density ρ that is lauched of measurement temperatureWaterAutomatically the density of every hair sample is calculated；
Display module: for showing the bare weight M of every hair sample when measuring the bare weight of every hair sample1/M2/M3……/Mn；It is surveying
When measuring the buoyant weight of every hair sample, the buoyant weight M of every hair sample is shown1’/M2’/M3’……/Mn'；And every hair sample is being calculated automatically
Calculated result is shown after the density of product.
2. the automatic rapid batch density measuring equipment of explosive compacted products according to claim 1, it is characterised in that described
The calculation formula of the buoyant weight of every hair sample are as follows: as n=1, Mn'=F1/g；As n >=2, Mn'=(Fn-Fn-1)/g, wherein Mn’
For the buoyant weight of the n-th hair sample, Fn、Fn-1Gross buoyancy suffered by buoyancy column when respectively measurement n-th, n-1 send out the buoyant weight of sample.
3. the automatic rapid batch density measuring equipment of explosive compacted products according to claim 1, it is characterised in that described
Distilled water density meter is stored in temperature detection and density matching module, and the module is connect with temperature sensor (111),
The temperature sensor is vertically arranged in buoyancy measuring cup inner edge.
4. the automatic rapid batch density measuring equipment of explosive compacted products according to claim 3, it is characterised in that described
Automatically the calculation formula for calculating the density of every hair sample is ρn=ρWaterMnd2/[Mn’(D2-d2-u2)], wherein ρnFor the n-th hair sample
Density, Mn、Mn' be respectively the n-th hair sample bare weight and buoyant weight, d be buoyancy column cross-sectional diameter, D be buoyancy measuring cup it is transversal
Face diameter, u are the cross-sectional diameter of temperature sensor.
5. the automatic rapid batch density measuring equipment of explosive compacted products according to claim 1, it is characterised in that the dress
Set be also provided with bare weight measurement button, buoyant weight measurement button, density computed push-buttom, for confirm bare weight measurement or buoyant weight measured
The ACK button that journey terminates, and it is converted into for starting balance for buoyancy suffered by buoyancy column the reading button of equivalent mass.
6. the automatic rapid batch density measuring equipment of explosive compacted products according to claim 1, it is characterised in that described
It is connected and fixed between horizontal platform and base plate by stick pillar, or side wall construction is arranged between horizontal platform and base plate to make
Sealing space is formed between horizontal platform, base plate and side wall construction, active window is set in the side wall construction in order to empty in sealing
Interior pick-and-place article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610481474.1A CN106153496B (en) | 2016-06-24 | 2016-06-24 | The automatic rapid batch density measuring equipment of explosive compacted products and method |
Applications Claiming Priority (1)
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| CN109883881B (en) * | 2019-04-02 | 2024-02-13 | 中国工程物理研究院化工材料研究所 | Weighing device, PBX explosive column automatic density tester and testing method thereof |
| CN114152542A (en) * | 2021-10-12 | 2022-03-08 | 中煤科工集团淮北爆破技术研究院有限公司 | Automatic quick batch density measuring device for explosive products |
| CN114486621B (en) * | 2021-12-15 | 2023-07-18 | 西安近代化学研究所 | Automatic measuring device and measuring method for bulk density of explosives and powders |
| CN114935526A (en) * | 2022-07-25 | 2022-08-23 | 苏州药明康德新药开发有限公司 | Device and method for measuring encapsulation density of dry granulation tablet |
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