CN107462493A - A kind of plastic products apparent density assay method - Google Patents
A kind of plastic products apparent density assay method Download PDFInfo
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- CN107462493A CN107462493A CN201710756664.4A CN201710756664A CN107462493A CN 107462493 A CN107462493 A CN 107462493A CN 201710756664 A CN201710756664 A CN 201710756664A CN 107462493 A CN107462493 A CN 107462493A
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- plastic products
- density
- quality
- assay method
- apparent density
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Classifications
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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
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
-
- 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
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
- G01N2009/022—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of solids
Abstract
The invention discloses a kind of plastic products apparent density assay method, comprise the following steps:Pass through the length, width and height of dimensional measurement platform measuring plastic products；The volume v of plastic products is calculated by computer data processing system；The quality m of plastic products is drawn by quality weighing platform；The volume v and quality m that are drawn using above-mentioned steps calculate the apparent density of plastic products.The present invention carries out automatic data acquisition to dimensional measurement platform and quality weighing platform using computer data processing system, the apparent density of plastic products is drawn according to apparent density formula by the principle of high-precision laser range-finding sensor.
Description
Technical field
The present invention relates to building energy conservation monitor field, it is more particularly to a kind of using infrared survey plastic products apparent density
Assay method.
Background technology
With the energy conservation plan of " 13 ", energy-saving heat preserving is developed rapidly, and the insulation of building trade warming plate serves
Very big effect.For guarantee construction quality, the detection to insulation material is particularly important.Outside according to current specifications measure plastic products
The measuring method that size mainly uses slide measure is seen, current methods, should be step by step by slide measure when measuring various materials
It is pre-adjusted to less size, and by its measuring surface registration coupon, when the measuring surface of slide measure touches sample table just
Face and when not compressing or damaging sample, regulation is completed, and writes down now reading.This measuring method shortcoming is apparent：It is existing
Measuring method operation is difficult to avoid not compressing or damaging sample, while cannot guarantee that slide measure is vertical in measurement process
Sample is measured, measurement result can cause specimen size bigger than normal.Secondly there are wasting manpower and material resources, be inconvenient to believe in existing measuring method
The shortcomings of breathization manages.
The content of the invention
For prior art detection error it is excessive the drawbacks of, the present invention provide it is a kind of convenient, flexibly, precisely, efficiently, can
Capable plastic products apparent density assay method.
In order to solve the above-mentioned technical problem, the present invention uses following technical scheme：
A kind of plastic products apparent density assay method, comprises the following steps:
1）, pass through the length, width and height of dimensional measurement platform measuring plastic products；
2）, pass through computer data processing system calculate plastic products volume v；
3）, draw by quality weighing platform the quality m of plastic products；
4）, the volume v and quality m that are drawn using above-mentioned steps pass through formula（1）Calculate the apparent density of plastic products
……………………（1）
In formula：
--- apparent density（Apparent gross density or apparent core density）, unit is kilogram every cubic metre（）；
The quality of m --- sample, unit are gram（）；
--- the volume of sample, unit are cubic millimeter（）.
Further, in above-mentioned steps 4）In, for the plastic products of low-density closed-cell materials, its apparent density passes through public affairs
Formula（2）It is calculated
……………………（2）
In formula：
--- apparent density（Apparent gross density or apparent core density）, unit is kilogram every cubic metre（）；
The quality of m --- sample, unit are gram（）；
--- the quality of discharge air, unit are gram（）；
--- the volume of sample, unit are cubic millimeter（）.
Further, the low-density closed-cell materials refer to that density is less than 15kg/m3Material.
Further, the dimensional measurement platform is cube structure, and surrounding is Double-layered transparent enclosed structure, adjacent plane
It is mutually perpendicular to, the Double-layered transparent enclosed structure intermediate course is placed with some high-precision laser range-finding sensors.
Further, the platform being made up of four pillars is placed with inside the cube structure, flat edge of table has
Two orthogonal and prominent angle bar, so as to be measured at plastic products thickness half and side high-precision laser range-finding
Sensor is in approximately the same plane.
Further, all high-precision laser range-finding sensors utilize data wire and the computer data processing system phase
Even.
Further, the quality weighing platform mainly includes electronic balance, and the electronic balance passes through data wire and institute
Computer data processing system is stated to be connected.
Further, data of the dimensional measurement platform of the computer data processing system automatic data collection and described
Quality weighing platform data, the apparent density of plastic products is drawn according to apparent density formula.
Further, when the plastic products are smooth, the data of upper and lower surface collection take five all as data are calculated
Height of the average value of individual data as plastic products；When the surface of plastic products is fluted, give up minimum two of thickness
Numerical value, take height of the average value of remaining three numbers as plastic products.
By adopting the above-described technical solution, the beneficial effects of the invention are as follows：
A kind of plastic products apparent density assay method of the present invention passes through the principle of high-precision laser range-finding sensor, main profit
The apparent size of plastic products is asked for range difference.This measuring system mainly includes 12 high accuracy that all around side is placed
Laser range sensor, the long width of plastic products is drawn using dimension difference principle, places five laser measurement probes up and down,
The height of plastic products is drawn using dimension difference.All laser micrometers are connected using data wire with computer, using advance
The program finished be calculated the volume of plastic products.The quality of product is calculated by quality weighing platform again, so as to
Data and the quality weighing platform data by the dimensional measurement platform of computer data processing system automatic data collection,
The apparent density of plastic products is drawn according to apparent density formula.
Brief description of the drawings
In order to illustrate the technical solution of the embodiments of the present invention more clearly, the accompanying drawing of embodiment will be briefly described below, it is right
For those of ordinary skill in the art, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings
His accompanying drawing.
Fig. 1 is the dimensional measurement platform schematic diagram of the present invention.
Fig. 2 is the schematic layout pattern of the high-precision laser range-finding sensor of the present invention.
Fig. 3 is the schematic diagram of the plastic products apparent density measurement system of the present invention.
Embodiment
As Figure 1-3, according to the plastic products apparent density assay method of the present invention, first by the good plastics system of advance comprising
Product are placed on the platform top among enclosed structure by reserved window above dimensional measurement platform, straight by one of plastic products
The arm of angle protrudes angle bar with platform and is close to, and this operation purpose is that four faces of the edge and enclosed structure for making plastic products are put down
OK, the accuracy of dimensional measurement is ensured.After plastic products are placed, using computer data processing system to dimensional measurement
Platform carries out automatic data acquisition.Pass through the length, width and height of dimensional measurement platform measuring plastic products.
As shown in figure 3, a kind of plastic products apparent density measurement system, mainly includes dimensional measurement platform, quality weighing
Platform, computer data processing system.
As Figure 1-3, plastic products dimensional measurement platform is cube structure, and surrounding is Double-layered transparent enclosed structure,
Respectively A faces, a faces, B faces, b faces, adjacent plane are mutually perpendicular to, and Double-layered transparent enclosed structure intermediate course places high-precision laser
Distance measuring sensor, A faces include three high-precision laser range-finding sensors, respectively high-precision laser range-finding sensor 1 ', high-precision
Spend laser range sensor 2 ', high-precision laser range-finding sensor 3 '；Corresponding a faces sense including high-precision laser range-finding
Device 1, high-precision laser range-finding sensor 2, high-precision laser range-finding sensor 3.
B faces include three high-precision laser range-finding sensors, and respectively high-precision laser range-finding sensor 4 ', high accuracy swashs
Ligh-ranging sensor 5 ', high-precision laser range-finding sensor 6 '；Corresponding b faces include high-precision laser range-finding sensor 4,
High-precision laser range-finding sensor 5, high-precision laser range-finding sensor 6.
C faces are located at directly over cube structure, and C faces are supported by four pillars, and the purpose that C faces are supported by four pillars is
Can be to place plastic products to have enough operating spaces.C faces are with c faces parallel and perpendicular to A faces, a faces, B faces, b faces.C bread
Include five high-precision laser range-finding sensors, respectively high-precision laser range-finding sensor 7 ', high-precision laser range-finding sensor
8 ', high-precision laser range-finding sensor 9 ', high-precision laser range-finding sensor 10 ', high-precision laser range-finding sensor 11 '；With
Corresponding to c faces include high-precision laser range-finding sensor 7, high-precision laser range-finding sensor 8, high-precision laser range-finding sensing
Device 9, high-precision laser range-finding sensor 10, high-precision laser range-finding sensor 11.The generally upper following table of sample
The face length of side is 100mm × 100mm, as illustrated, the cornerwise intersection point in upper surface is respectively O, the diagonal four of upper surface/
One Along ent is respectively M, N, P, Q point.High-precision laser range-finding sensor 11 ', high-precision laser range-finding sensor 11 and O points exist
On same straight line, high-precision laser range-finding sensor 7 ', high-precision laser range-finding sensor 7 and Q points are on the same line, high
On the same line, high-precision laser range-finding passes for precision laser distance measuring sensor 8 ', high-precision laser range-finding sensor 8 and M points
Sensor 9 ', high-precision laser range-finding sensor 9 and N points on the same line, high-precision laser range-finding sensor 10 ', high accuracy
On the same line, high-precision laser range-finding sensor 11 ', high-precision laser range-finding sense for laser range sensor 10 and P points
Device 11 and Q points are on the same line.
High-precision laser range-finding sensor 2 ', high-precision laser range-finding sensor 2 lean on the surface pair into A faces with plastic products
Linea angulata intersection point is on the same axis.High-precision laser range-finding sensor 5 ', high-precision laser range-finding sensor 5 lean on plastic products
Enter the surface diagonal intersection point in B faces on the same axis.The high-precision laser range-finding sensor of other reference numerals similarly, does not exist
Repeat one by one.A faces, a faces, B faces, the sensor neighbor distance on b faces are 25mm.It is A faces, a faces, B faces, all high-precision on b faces
Laser range sensor is spent in sustained height plane.
Place a platform being made up of four pillars inside cube structure, flat edge of table have two it is orthogonal and
Prominent 5mm angle bar, add and put this angle bar and be easy to four survey faces of plastic products to be respectively parallel to AaBb faces.Additionally, due to plastic products
Gauge thickness it is different, existing standby flat board, podium level can be adjusted, ensure to be measured at plastic products thickness half
With side high-precision laser range-finding sensor in approximately the same plane.
All high-precision laser range-finding sensors are connected using data wire with computer.High-precision laser range-finding as shown in the figure
Sensor 1 ', 2 ', 3 ', 1,2,3 connect computer data processing system, other high-precision laser range-finding sensors by data wire
It is connected with computer data processing system and is not embodying one by one.Computer data processing system can each high accuracy of automatic data collection swash
The measurement distance of ligh-ranging sensor.
Quality weighing platform mainly includes an electronic balance, and electronic balance passes through data wire and computer digital animation system
System is connected.Computer data processing system being capable of automatic data collection electronic balance weighing data.
Computer data processing system can be carried out the dimensional measurement platform data of automatic data collection and quality weighing platform
Data processing, the apparent density of plastic products is drawn according to apparent density formula.Between with the presence of frosting groove, this meter
Calculation machine data handling system is divided into two kinds of programs：When plastic products are smooth, the data of upper and lower surface collection are all as calculating number
According to taking the average value of five data as the height of plastic products；When surface of plastic products is reeded, give up the two of thickness minimum
Individual numerical value, height of the average value of remaining three numbers as plastic products is taken, and computer possesses rejecting data function manually, inspection
Survey personnel can be handled data according to plastic products superficial appearance.
The principle of this high-precision laser range-finding sensor mainly asks for the apparent size of plastic products using range difference.This
Measuring system mainly includes 12 high-precision laser range-finding sensors that all around side is placed, and is drawn using dimension difference principle
The long width of plastic products, five laser measurement probes are placed up and down, the height of plastic products is drawn using dimension difference.It is all
Laser micrometer is connected using data wire with computer, is calculated using the program finished in advance.
As the improvement of above-described embodiment, above-mentioned high-precision laser range-finding sensor accuracy can be adjusted according to measurement demand
It is whole.
As the improvement of above-described embodiment, above-mentioned high-precision laser range-finding number of sensors is not limited to quantity described in text,
It can be added or reduce as needed.
As the improvement of above-described embodiment, above-mentioned plastic products dimensional measurement platform can be carried out more according to actually detected demand
Change.
As the improvement of above-described embodiment, above-mentioned prominent 5mm angle bar is not limited to 5mm, can be according to being actually needed carry out chi
Very little adjustment.
As the improvement of above-described embodiment, high-precision laser range-finding sensor neighbor distance on above-mentioned same surface not office
It is limited to 25mm, row distance adjustment can be entered according to the actual requirements.
Now with A faces laser range finder 1, and laser range finder 1 on a faces explains explanation.Vertical range of the A faces to a faces
For L, A faces laser range finder 1, the distance for measuring plastic products is l1, a faces laser range finder 1 measure plastic products away from
From for l2, then the dimensions length of plastic products is L- l1- l2.Other size dimensions measure similarly.Length, width and height are in display screen
After upper display, plastic products size is measured by computer, plastic products volume V is drawn according to cubature formula.Then by plastics
Product takes out from dimensional measurement platform, is placed into quality weighing platform, it is m to obtain plastic products quality.
By formula（1）Apparent density is calculated, takes its average value, and be accurate to 0.1
……………………（1）
In formula：
--- apparent density（Apparent gross density or apparent core density）, unit is kilogram every cubic metre（）；
--- the quality of sample, unit are gram（）；
--- the volume of sample, unit are cubic millimeter（）.
For some low-density closed-cell materials（As density is less than 15Material）, aerostatic buoyancy may result in survey
Measure result and produce error, in this case apparent density applying equation（2）Calculate：
……………………（2）
In formula：
--- apparent density（Apparent gross density or apparent core density）, unit is kilogram every cubic metre（）；
--- the quality of sample, unit are gram（）；
--- the quality of discharge air, unit are gram（）；
--- the volume of sample, unit are cubic millimeter（）.
Note：Refer to the atmospheric density in normal pressure and certain temperature（）It is multiplied by volume of sample（）.Work as temperature
For 23 DEG C, atmospheric pressure 101325Pa（760mm mercury column）When, atmospheric density is 1.220 × 10-6 ；When temperature is 27
DEG C, atmospheric pressure 101325Pa（760mm mercury column）When, atmospheric density is 1.1955 × 10-6 。
Finally illustrate, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to compared with
The present invention is described in detail good embodiment, it will be understood by those within the art that, can be to the skill of the present invention
Art scheme is modified or equivalent substitution, and without departing from the objective and scope of technical solution of the present invention, it all should cover at this
Among the right of invention.
Claims (9)
1. a kind of plastic products apparent density assay method, comprises the following steps:
1）, pass through the length, width and height of dimensional measurement platform measuring plastic products；
2）, pass through computer data processing system calculate plastic products volume v；
3）, draw by quality weighing platform the quality m of plastic products；
4）, the volume v and quality m that are drawn using above-mentioned steps pass through formula（1）Calculate the apparent density of plastic products
……………………（1）
In formula：
--- apparent density（Apparent gross density or apparent core density）, unit is kilogram every cubic metre（）；
--- the quality of sample, unit are gram（）；
--- the volume of sample, unit are cubic millimeter（）.
2. assay method according to claim 1, in above-mentioned steps 4）In, for the plastics system of low-density closed-cell materials
Product, its apparent density pass through formula（2）It is calculated
……………………（2）
In formula：
--- apparent density（Apparent gross density or apparent core density）, unit is kilogram every cubic metre（）；
--- the quality of sample, unit are gram（）；
--- the quality of discharge air, unit are gram（）；
--- the volume of sample, unit are cubic millimeter（）.
3. assay method according to claim 2, the low-density closed-cell materials refer to that density is less than 15kg/m3Material.
4. assay method according to claim 3, the dimensional measurement platform is cube structure, and surrounding is Double-layered transparent
Enclosed structure, adjacent plane are mutually perpendicular to, and the Double-layered transparent enclosed structure intermediate course is placed with some high-precision lasers and surveyed
Away from sensor.
5. assay method according to claim 4, the cube structure the inside is placed with is put down by what four pillars formed
Platform, flat edge of table have two orthogonal and prominent angle bar so that be measured at plastic products thickness half and
Side high-precision laser range-finding sensor is in approximately the same plane.
6. assay method according to claim 4, all high-precision laser range-finding sensors utilize data wire and the meter
Calculation machine data handling system is connected.
7. assay method according to claim 6, the quality weighing platform mainly includes electronic balance, the electronics day
It is flat to be connected by data wire with the computer data processing system.
8. assay method according to claim 7, the size of the computer data processing system automatic data collection is surveyed
The data of platform and the quality weighing platform data are measured, the apparent density of plastic products is drawn according to apparent density formula.
9. assay method according to claim 8, when the plastic products are smooth, the data of upper and lower surface collection are whole
As data are calculated, the average value of five data is taken as the height of plastic products；When the surface of plastic products is fluted, house
The minimum two values of thickness are abandoned, take height of the average value of remaining three numbers as plastic products.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870386A (en) * | 2019-04-03 | 2019-06-11 | 浙江省工程物探勘察院 | Geotechnical investigation test specimen density measurement system |
| CN110376094A (en) * | 2019-07-05 | 2019-10-25 | 江苏省镔鑫钢铁集团有限公司 | A kind of bundled scrap specific weight measurer and measurement method |
| CN110726643A (en) * | 2019-11-18 | 2020-01-24 | 辽宁机电职业技术学院 | Laser detection system and detection method for diamond density test |
| CN113109217A (en) * | 2021-04-19 | 2021-07-13 | 厦门厦钨新能源材料股份有限公司 | Analysis method for apparent density of powder material |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2208120A1 (en) * | 2002-11-29 | 2004-06-01 | Agustin Poyatos Mora | Equipment for determining bulk density, particularly for determining density of piece, has combination of digitizing device in three dimension by laser beam and weighing device is provided for supporting control piece |
| CN201852762U (en) * | 2010-10-21 | 2011-06-01 | 常熟理工学院 | Wood material density quick measuring instrument |
| CN103994701A (en) * | 2014-05-12 | 2014-08-20 | 南通市建筑科学研究院有限公司 | Caliper for detecting apparent density of foamed plastics |
| CN103645118B (en) * | 2013-12-30 | 2015-09-02 | 中核建中核燃料元件有限公司 | A kind of cylindrical pellet density measuring equipment and measuring method thereof |
| CN105424552A (en) * | 2015-12-30 | 2016-03-23 | 重庆精榜高分子材料有限公司 | Polymer material density testing equipment |
| CN105571983A (en) * | 2016-01-15 | 2016-05-11 | 重庆大学 | Method and system for measuring geometric density of nuclear fuel pellet |
| CN105954145A (en) * | 2016-06-25 | 2016-09-21 | 袁林 | Gold density measurement instrument and method for measuring density of object by virtue of gold density measurement instrument |
-
2017
- 2017-08-29 CN CN201710756664.4A patent/CN107462493A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2208120A1 (en) * | 2002-11-29 | 2004-06-01 | Agustin Poyatos Mora | Equipment for determining bulk density, particularly for determining density of piece, has combination of digitizing device in three dimension by laser beam and weighing device is provided for supporting control piece |
| CN201852762U (en) * | 2010-10-21 | 2011-06-01 | 常熟理工学院 | Wood material density quick measuring instrument |
| CN103645118B (en) * | 2013-12-30 | 2015-09-02 | 中核建中核燃料元件有限公司 | A kind of cylindrical pellet density measuring equipment and measuring method thereof |
| CN103994701A (en) * | 2014-05-12 | 2014-08-20 | 南通市建筑科学研究院有限公司 | Caliper for detecting apparent density of foamed plastics |
| CN105424552A (en) * | 2015-12-30 | 2016-03-23 | 重庆精榜高分子材料有限公司 | Polymer material density testing equipment |
| CN105571983A (en) * | 2016-01-15 | 2016-05-11 | 重庆大学 | Method and system for measuring geometric density of nuclear fuel pellet |
| CN105954145A (en) * | 2016-06-25 | 2016-09-21 | 袁林 | Gold density measurement instrument and method for measuring density of object by virtue of gold density measurement instrument |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109870386A (en) * | 2019-04-03 | 2019-06-11 | 浙江省工程物探勘察院 | Geotechnical investigation test specimen density measurement system |
| CN110376094A (en) * | 2019-07-05 | 2019-10-25 | 江苏省镔鑫钢铁集团有限公司 | A kind of bundled scrap specific weight measurer and measurement method |
| CN110726643A (en) * | 2019-11-18 | 2020-01-24 | 辽宁机电职业技术学院 | Laser detection system and detection method for diamond density test |
| CN113109217A (en) * | 2021-04-19 | 2021-07-13 | 厦门厦钨新能源材料股份有限公司 | Analysis method for apparent density of powder material |
| CN113109217B (en) * | 2021-04-19 | 2024-03-01 | 厦门厦钨新能源材料股份有限公司 | Analysis method for apparent density of powder material |
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