CN104748813A - Rigid object volume measuring instrument and method based on ideal gas state equation - Google Patents
Rigid object volume measuring instrument and method based on ideal gas state equation Download PDFInfo
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- CN104748813A CN104748813A CN201510141302.5A CN201510141302A CN104748813A CN 104748813 A CN104748813 A CN 104748813A CN 201510141302 A CN201510141302 A CN 201510141302A CN 104748813 A CN104748813 A CN 104748813A
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- volume
- measuring vessel
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Abstract
The invention discloses a rigid object volume measuring instrument and method based on an ideal gas state equation. The rigid object volume measuring instrument comprises a closeable measuring container, a power drive stepping motor, a pressurized container, a single chip microcomputer, a display terminal, a data processing unit, a pressure intensity sensor and a sealing part. The pressure intensity sensor collects the pressure intensity P1 in the closeable measuring container, the data processing unit converts the pressure intensity P1 into a volume V, and V=V0-P1*V1/(P1-P0). The rigid object volume measuring instrument has the advantages that the structure is simple, processing and manufacturing are facilitated, investment is small, benefits are large, measurement is precise, environmental protection is achieved, no injury is caused to human bodies, operation is simple and convenient, and the technical requirements for operators are not high. The measuring result is displayed in real time, and precision can reach more than 95%. The rigid object volume measuring instrument and method have vitally important application value in the industries such as mining, manufacturing and jewelry appraisal.
Description
Technical field
The present invention relates to the Ideal-Gas Equation, is applied to any volume workpiece, especially to a kind of method that contact medium has the object volume of requirement and density to measure, and realizes the instrument of this measuring method.
Background introduction
Object volume density measuring technique can be widely used in each field.Measure the density of irregular material, particularly the density measure of the irregularly shaped object such as ore, dust is an a kind of difficult problem always, and this density measure judges to have very important effect for the true and false of the material such as jewels and jade, redwood of some preciousnesses especially.The core volume measuring method of such as domestic use is with a measuring media filling and placing unit, get appropriate measuring media and fill this unit, then measuring media is poured out, the core will measuring its volume is put into wherein, then the measuring media poured out is reinstalled, after filling unit, a part of measuring media must be left, the quality of this part measuring media is left with electronic balance weighing, if the quality claimed is M, the apparent density of measuring media is Q, then the volume of tested core is: Q=M/V.
In formula: the unit of M is the unit of g, Q is g/cm
3, the unit of V is cm
3.
And advanced measurement core volume method sticks the thin soluble high-molecular film of one deck in its surface in the world, core is put in a reservoir, use domestic similar method to measure the volume of core.Afterwards domestic also have improvement after measuring technique: use metal powder to be measured by similar principle as measuring media.
There is distinct disadvantage in above method:
1. the healthy generation harmful effect of couple staff.
2. mercury infiltration enters rock interior, and make to measure core volume less than normal, owing to infiltrating through mercury in space, liquid pollutes testee to some degree, affects follow-up experiment.
3. although foreign method compensate for the defect of 2 to a certain extent, pad pasting requires high, and a series of costs that pad pasting brings raise, and also need a series of numerous and diverse steps such as vacuumizing after pad pasting completes, and this adds its complexity measured undoubtedly.
4. measurement result is indirect consequence, also needs the volume being calculated core by density conversion.
5. no matter be in the measuring process of metal powder or various liquid, must exist and adhere to thus cause measurement result out of true, the bulkiness both increasing this instrument is deposited and transported to these measuring media in addition.
Summary of the invention
The object of the invention is for the deficiencies in the prior art, provide a kind of rigid objects cubing instrument based on the Ideal-Gas Equation and method.Instrument of the present invention and method have jumped out measurement volumes to be needed to use the principle framework getting rid of mass of object conversion volume, uses the Boyle-boyle's law in the Ideal-Gas Equation, removes with brand-new thought angle the volume measuring irregularly shaped object.
The object of the invention is to be achieved through the following technical solutions: a kind of rigid objects cubing instrument based on the Ideal-Gas Equation, described instrument comprises: can airtight measuring vessel, power drive stepper motor, pressurized container, single-chip microcomputer, display terminal, data processing unit, pressure transducer, seal; Pressurized container is arranged on can above airtight measuring vessel; Seal is connected with power drive stepper motor, and seal is arranged in pressurized container, pressurized container is divided into live part and inactive portion, live part with can communicate by airtight measuring vessel; Pressure transducer is arranged on can in airtight measuring vessel; Single-chip microcomputer, display terminal, data processing unit are installed in can on airtight measuring vessel; Single-chip microcomputer is connected with power drive stepper motor, and Micro Controller Unit (MCU) driving power drive stepper motor moves up and down; Pressure transducer is connected with data processing unit respectively with display terminal; Pressure transducer collection can pressure P in airtight measuring vessel
1, data processing unit is by pressure P
1be converted to volume V, V=V
0-P
1v
1/ (P
1-P
0), wherein, V
0for can volume, the V of airtight measuring vessel
1for volume, the P of live part
0for can pressure in airtight measuring vessel under original state.
Further, described instrument also comprises scale pan objective table, and scale pan objective table is connected with data processing unit, and scale pan objective table gathers the quality of object under test, and data processing unit, according to quality and volume, calculates the density of object under test.
Based on a rigid objects volume measuring method for the Ideal-Gas Equation, the method realizes on above-mentioned instrument, and the method comprises the following steps:
(1) initial position is moved to by single-chip microcomputer by power drive step motor control seal, i.e. the volume V of live part
1position when being 0;
(2) pressure transducer gathers under original state, can pressure P in airtight measuring vessel
0;
(3) being put into by object under test can in airtight measuring vessel, and airtight can airtight measuring vessel;
(4) power drive step motor control seal upwards any distance h is passed through by single-chip microcomputer, now, the volume V of live part
1=Sh, wherein S is the base area of pressurized container; Meanwhile, pressure transducer collection now can pressure P in airtight measuring vessel
1;
(5) data processing unit calculates the volume V of object under test, V=V
0-P
1v
1/ (P
1-P
0).
Beneficial effect of the present invention is: the surveying instrument designed by the present invention is using gas as measuring media, if environment sensitive is touched in object to be measured docking, particular measurement gas can be selected to measure, and therefore its compatibility is high.Not only experimenter is not injured, pollution-free to object in measuring process; Simple to operate, the light portable of instrument, can carry out safety for all kinds of material, pollution-free, convenient and swift measurement.
Accompanying drawing explanation
The structural representation of Fig. 1 surveying instrument of the present invention;
In figure, can airtight measuring vessel 1, power drive stepper motor 2, pressurized container 3, single-chip microcomputer 4, display terminal 5, data processing unit 6, pressure transducer 7, scale pan objective table 8, seal 9.
Embodiment
Boyle-boyle's law according in the Ideal-Gas Equation: under quantitative constant temperature, volume and the pressure of ideal gas are inversely proportional to, and equation expression is PV=C, and wherein P represents pressure, V represents volume, C represents a constant, certainly this constant and temperature correlation, because we measure and environment temperature UNICOM, therefore we think that temperature impact is very little, if measuring accuracy is higher, can consider to add temperature control system, hereafter principle describes part consideration is in constant temperature system.
Based on above principle, a kind of rigid objects cubing instrument based on the Ideal-Gas Equation of the present invention, comprising: can airtight measuring vessel 1, power drive stepper motor 2, pressurized container 3, single-chip microcomputer 4, display terminal 5, data processing unit 6, pressure transducer 7, seal 9; Pressurized container 3 is arranged on can above airtight measuring vessel 1; Seal 9 is connected with power drive stepper motor 2, and seal 9 is arranged in pressurized container 3, and pressurized container 3 is divided into live part and inactive portion, live part with can communicate by airtight measuring vessel 1; Pressure transducer 7 is arranged on can in airtight measuring vessel 1; Single-chip microcomputer 4, display terminal 5, data processing unit 6 are installed in can on airtight measuring vessel 1; Single-chip microcomputer 4 is connected with power drive stepper motor 2, and single-chip microcomputer 4 drives power drive stepper motor 2 to move up and down; Pressure transducer 7 is connected with data processing unit 6 respectively with display terminal 5; Pressure transducer 7 collection can pressure P in airtight measuring vessel 1
1, data processing unit 6 is by pressure P
1be converted to volume V, V=V
0-P
1v
1/ (P
1-P
0), wherein, V
0for can volume, the V of airtight measuring vessel 1
1for volume, the P of live part
0for can pressure in airtight measuring vessel 1 under original state.
The derivation of above-mentioned formula is as follows:
First workpiece is put into measuring vessel, by container closure.Survey atmospheric pressure sensor real-time Transmission now in this container goes out pressure data.Now we gather a pressure data and are designated as P
0.And volume data now should to be whole volume of a container known is V
0deduct the volume V of workpiece for measurement, therefore we are according to Boyle-boyle's law, and we can obtain this equation:
P
0*(V
0-V)＝C (1)
Have a telescopic piston to be stretched by step motor control in container, the stroke utilizing single-chip microcomputer to carry out control step motor can obtain compression volume.Therefore Single-chip Controlling stepper motor is utilized to compress certain volume V
1, now pressure transducer real-time Transmission can go out compression volume V
1after pressure be P
1, then can equation be obtained by Boyle-boyle's law:
P
1*(V
0-V
1-V)＝C (2)
Simultaneous equations (1) (2), can obtain: P
1* (V
0-V
1-V)=P
0* (V
0-V).Wherein P
0, P
1, V
0, V
1be all known quantity, therefore can calculate the size of workpiece for measurement volume V:
V＝V
0-P
1V
1/(P
1-P
0)。
Further, described instrument also comprises scale pan objective table 8, and scale pan objective table 8 is connected with data processing unit 6, and the qualitative data M obtained by the scale pan carries out computing with the workpiece volume V calculated, and can obtain comparatively accurately density size according to equation ρ=M/V.
Above-mentioned display terminal 5 can adopt 12864 display screens.
Power drive stepper motor 2 can adopt JK42HM34-1334.
Single-chip microcomputer 4 can adopt 51 single-chip microcomputers.
Data processing unit 6 can adopt ARM single-chip microcomputer.
Sensor 7 can adopt GY-63MS5611-01BA03 gas pressure sensor module.
Not having under particular/special requirement, can the gas in airtight measuring vessel 1 can be air.
The method of the volume of above-mentioned apparatus measures object is as follows:
(1) first by container closure, single-chip microcomputer 4 controls seal 9 by power drive stepper motor 2 and moves to initial position, i.e. the volume V of live part
1position when being 0;
(2) under pressure transducer 7 gathers original state, can pressure P in airtight measuring vessel 1
0;
(3) being put into by object under test can in airtight measuring vessel 1, and airtight can airtight measuring vessel 1;
(4) seal 9 upwards any distance h is controlled by single-chip microcomputer 4 by power drive stepper motor 2, now, the volume V of live part
1=Sh, wherein S is the base area of pressurized container 3; Meanwhile, gather now can pressure P in airtight measuring vessel 1 for pressure transducer 7
1;
(5) data processing unit 6 calculates the volume V of object under test, V=V
0-P
1v
1/ (P
1-P
0).
Claims (3)
1. the rigid objects cubing instrument based on the Ideal-Gas Equation, it is characterized in that, described instrument comprises: can airtight measuring vessel (1), power drive stepper motor (2), pressurized container (3), single-chip microcomputer (4), display terminal (5), data processing unit (6), pressure transducer (7), seal (9) etc.; Pressurized container (3) be arranged on can airtight measuring vessel (1) top; Seal (9) is connected with power drive stepper motor (2), seal (9) is arranged in pressurized container (3), pressurized container (3) is divided into live part and inactive portion, live part with can communicate by airtight measuring vessel (1); Pressure transducer (7) is arranged on can in airtight measuring vessel (1); Single-chip microcomputer (4), display terminal (5), data processing unit (6) are installed in can on airtight measuring vessel (1); Single-chip microcomputer (4) is connected with power drive stepper motor (2), and single-chip microcomputer (4) drives power drive stepper motor (2) to move up and down; Pressure transducer (7) is connected with data processing unit (6) respectively with display terminal (5); Pressure transducer (7) collection can pressure P in airtight measuring vessel (1)
1, data processing unit (6) is by pressure P
1be converted to volume V, V=V
0-P
1v
1/ (P
1-P
0), wherein, V
0for can volume, the V of airtight measuring vessel (1)
1for volume, the P of live part
0for can pressure in airtight measuring vessel (1) under original state.
2. surveying instrument according to claim 1, it is characterized in that, described instrument can also comprise scale pan objective table (8), scale pan objective table (8) is connected with data processing unit (6), scale pan objective table (8) gathers the quality of object under test, data processing unit (6), according to quality and volume, calculates the density of object under test.
3. based on a rigid objects volume measuring method for the Ideal-Gas Equation, it is characterized in that, the method realizes on instrument according to claim 1, and the method comprises the following steps:
(1) control seal (9) by single-chip microcomputer (4) by power drive stepper motor (2) and move to initial position, i.e. the volume V of live part
1position when being 0.
(2) pressure transducer (7) gathers under original state, can pressure P in airtight measuring vessel (1)
0.
(3) being put into by object under test can in airtight measuring vessel (1), and airtight can airtight measuring vessel (1).
(4) seal (9) upwards any distance h is controlled by single-chip microcomputer (4) by power drive stepper motor (2), now, the volume V of live part
1=Sh, wherein S is the base area of pressurized container (3); Meanwhile, gather now can pressure P in airtight measuring vessel (1) for pressure transducer (7)
1.
(5) data processing unit (6) calculates the volume V of object under test, V=V
0-P
1v
1/ (P
1-P
0).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141302.5A CN104748813A (en) | 2015-03-27 | 2015-03-27 | Rigid object volume measuring instrument and method based on ideal gas state equation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510141302.5A CN104748813A (en) | 2015-03-27 | 2015-03-27 | Rigid object volume measuring instrument and method based on ideal gas state equation |
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| CN104748813A true CN104748813A (en) | 2015-07-01 |
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ID=53588842
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|---|---|---|---|
| CN201510141302.5A Pending CN104748813A (en) | 2015-03-27 | 2015-03-27 | Rigid object volume measuring instrument and method based on ideal gas state equation |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108955809A (en) * | 2018-08-02 | 2018-12-07 | 四川大学 | A kind of device and method measuring irregularly shaped object volume |
| CN109405919A (en) * | 2018-11-27 | 2019-03-01 | 成都师范学院 | Liquor fermentation grain unstrained spirits volume measurement device and its application method |
| CN109856007A (en) * | 2018-12-28 | 2019-06-07 | 吉林大学 | Portable specific gravity instrument and specific gravity test method based on air pressure measurement |
| CN110440867A (en) * | 2019-08-21 | 2019-11-12 | 许昌学院 | Irregular solid particle air pressure co-volume and density measuring equipment and its application method |
| CN111721669A (en) * | 2020-07-06 | 2020-09-29 | 北京中建建筑科学研究院有限公司 | Method for measuring apparent density and gas content of material |
| CN111811401A (en) * | 2020-06-30 | 2020-10-23 | 大连优联智能装备股份有限公司 | Volume measuring device and method of use thereof |
| CN111855973A (en) * | 2020-05-20 | 2020-10-30 | 北京中建建筑科学研究院有限公司 | Semi-pneumatic method steel bar sleeve grouting fullness detection device and detection method |
| CN111965313A (en) * | 2020-08-24 | 2020-11-20 | 中检集团公信安全科技有限公司 | Food specific volume measuring instrument and detection method thereof |
| CN112051186A (en) * | 2020-07-23 | 2020-12-08 | 山东天岳先进材料科技有限公司 | Method and device for measuring volume density of graphite crucible without pollution |
| CN113373037A (en) * | 2020-09-28 | 2021-09-10 | 苏州海路生物技术有限公司 | Method and instrument for detecting components of intestinal flora fermentation gas |
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| CN2735332Y (en) * | 2004-05-14 | 2005-10-19 | 周郑 | Liquid-free density and volume meter |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108955809A (en) * | 2018-08-02 | 2018-12-07 | 四川大学 | A kind of device and method measuring irregularly shaped object volume |
| CN109405919A (en) * | 2018-11-27 | 2019-03-01 | 成都师范学院 | Liquor fermentation grain unstrained spirits volume measurement device and its application method |
| CN109856007A (en) * | 2018-12-28 | 2019-06-07 | 吉林大学 | Portable specific gravity instrument and specific gravity test method based on air pressure measurement |
| CN110440867A (en) * | 2019-08-21 | 2019-11-12 | 许昌学院 | Irregular solid particle air pressure co-volume and density measuring equipment and its application method |
| CN111855973A (en) * | 2020-05-20 | 2020-10-30 | 北京中建建筑科学研究院有限公司 | Semi-pneumatic method steel bar sleeve grouting fullness detection device and detection method |
| CN111811401A (en) * | 2020-06-30 | 2020-10-23 | 大连优联智能装备股份有限公司 | Volume measuring device and method of use thereof |
| CN111721669A (en) * | 2020-07-06 | 2020-09-29 | 北京中建建筑科学研究院有限公司 | Method for measuring apparent density and gas content of material |
| CN112051186A (en) * | 2020-07-23 | 2020-12-08 | 山东天岳先进材料科技有限公司 | Method and device for measuring volume density of graphite crucible without pollution |
| CN111965313A (en) * | 2020-08-24 | 2020-11-20 | 中检集团公信安全科技有限公司 | Food specific volume measuring instrument and detection method thereof |
| CN111965313B (en) * | 2020-08-24 | 2021-04-16 | 中检集团公信安全科技有限公司 | Food specific volume measuring instrument and detection method thereof |
| CN113373037A (en) * | 2020-09-28 | 2021-09-10 | 苏州海路生物技术有限公司 | Method and instrument for detecting components of intestinal flora fermentation gas |
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Application publication date: 20150701 |