CN103344523A - Liquid density real-time measurement method - Google Patents
Liquid density real-time measurement method Download PDFInfo
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- CN103344523A CN103344523A CN2013102711516A CN201310271151A CN103344523A CN 103344523 A CN103344523 A CN 103344523A CN 2013102711516 A CN2013102711516 A CN 2013102711516A CN 201310271151 A CN201310271151 A CN 201310271151A CN 103344523 A CN103344523 A CN 103344523A
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Abstract
The invention discloses a liquid density real-time measurement method, which can be used for accurately and rapidly measuring the density of various liquids and carrying out remote real-time measurement and transmission. The liquid density real-time measurement method comprises the following steps of: 1, preparing a solid which is insoluble in a liquid to be measured and has the density larger than that of the liquid to be measured; 2, tying the solid by one end of a thin wire, fixing the other end of the thin wire on a force sensor, and immersing the solid into the liquid with rho 0 as the known density without contacting a vessel used for containing the liquid; 3, amplifying an electric signal output by the force sensor by virtue of an amplifier, carrying out reading by virtue of a secondary meter or directly carrying out A/D conversion on the electric signal, collecting and displaying data by a microcomputer, and regulating the amplification factor of the amplifier to enable the meter to directly display the rho 0 value as the known density; and 4, immersing the solid into the liquid to be measured without contacting the vessel used for containing the liquid, so that the meter directly displays a rho x value as the density of the liquid to be measured.
Description
Affiliated technical field
The present invention relates to a kind of fluid density method for real-time measurement, be mainly used in big, the experimental teaching of special secondary school universities and colleges.
Background technology
Density is a physical parameter of material, common liquid density measurement method has: conventional method, density bottle method, densimeter method, buoyancy method, buoyancy aid method etc., all there is the shortcoming that measuring accuracy is not high, measurement is numerous and diverse in these methods, especially can not carry out telemeasurement and transmission.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the invention provides a kind of fluid density method for real-time measurement, it can measure various density of liquid accurately and rapidly, and can carry out remote the measurement in real time and transmission.
The technical solution adopted for the present invention to solve the technical problems is step 1: to prepare a volume be ν, be insoluble to testing liquid, its density is the solid of m greater than testing liquid density, quality; Step 2: it is that ν, quality are the solid of m that an end of fine rule hitches volume, and the other end of fine rule is fixed on the force-sensing sensor, and with this solid immersion in a known density is
ρ 0Liquid in, but do not contact with the container of holding liquid, according to Archimedes principle, be immersed in known density and be
ρ 0Solid in the liquid, its suffered buoyancy equals the weight of the liquid of its equal volume that arranges, that is:
, wherein
vBe the volume of solid, obviously, the tension force of the fine rule of hanging object is:
, therefore, the variation of fluid density will cause the variation of tension force in the fine rule; Step 3: the electric signal of force-sensing sensor output is amplified by amplifier, by the secondary instrument reading or directly change by A/D, carry out data acquisition and demonstration by microcomputer, therefore, testing liquid density can directly show by instrument, the resonance-amplifier enlargement factor makes instrument directly be shown as known density
ρ 0Value; Step 4: solid immersion in testing liquid, but is not contacted with the container of holding liquid, and then instrument directly shows the density of testing liquid
ρ xValue.
The invention has the beneficial effects as follows: an end of fine rule hitches one and is insoluble to testing liquid, its density greater than the solid of testing liquid density, and the other end of fine rule is fixed on the force-sensing sensor, with this solid immersion in a known density is earlier
ρ 0Liquid in, the electric signal of force-sensing sensor output is amplified by amplifier, the resonance-amplifier enlargement factor makes instrument directly be shown as known density
ρ 0Value, again with this solid immersion in testing liquid, but do not contact with the container of holding liquid, then instrument directly shows the density of testing liquid
ρ xValue, this inventive method simply, easily and fast, the measuring accuracy height, and can carry out remote the measurement in real time and transmission.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
The embodiment of the invention 1 step:
A, prepare one and be insoluble to testing liquid, its density greater than the solid of testing liquid density;
One end of b, fine rule hitches above-mentioned solid, the other end of fine rule is fixed on the force-sensing sensor, and with this solid immersion in water, but do not contact with the container that is filled with water, the electric signal of force-sensing sensor output is amplified by amplifier, the resonance-amplifier enlargement factor makes instrument directly be shown as the density of water
ρ 0Value;
One end of c, fine rule hitches above-mentioned solid, and the other end of fine rule is fixed on the force-sensing sensor, and with this solid immersion in testing liquid, but do not contact with the container of holding liquid, the value that instrument directly shows is the density of testing liquid
ρ xValue.
The embodiment of the invention 2 steps:
A, prepare one and be insoluble to testing liquid, its density greater than the solid of testing liquid density;
One end of b, fine rule hitches above-mentioned solid, the other end of fine rule is fixed on the force-sensing sensor, and with this solid immersion in water, but do not contact with the container that is filled with water, the electric signal of force-sensing sensor output is changed by A/D, carried out the density of data acquisition and demonstration water by microcomputer
ρ 0Value;
One end of c, fine rule hitches above-mentioned solid, the other end of fine rule is fixed on the force-sensing sensor, and with this solid immersion in testing liquid, but do not contact with the container of holding liquid, the electric signal of force-sensing sensor output is changed by A/D, carried out the density of data acquisition and demonstration testing liquid by microcomputer
ρ xValue.
Claims (1)
1. fluid density method for real-time measurement is characterized in that adopting following technical scheme, step 1: prepare one and be insoluble to testing liquid, its density greater than the solid of testing liquid density; Step 2: an end of fine rule hitches this solid, and the other end of fine rule is fixed on the force-sensing sensor, and with this solid immersion in a known density is
ρ 0Liquid in, but do not contact with the container of holding liquid; Step 3: the electric signal of force-sensing sensor output is amplified by amplifier, by the secondary instrument reading or directly by the A/D conversion, carry out data acquisition and demonstration by microcomputer, the resonance-amplifier enlargement factor makes instrument directly be shown as known density
ρ 0Value; Step 4: solid immersion in testing liquid, but is not contacted with the container of holding liquid, and then instrument directly shows the density of testing liquid
ρ xValue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102711516A CN103344523A (en) | 2013-07-01 | 2013-07-01 | Liquid density real-time measurement method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102711516A CN103344523A (en) | 2013-07-01 | 2013-07-01 | Liquid density real-time measurement method |
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| CN103344523A true CN103344523A (en) | 2013-10-09 |
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| CN2013102711516A Pending CN103344523A (en) | 2013-07-01 | 2013-07-01 | Liquid density real-time measurement method |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067481A (en) * | 2015-07-09 | 2015-11-18 | 浙江蓝箭称重技术有限公司 | Digital mud specific gravity tester and testing method |
| CN105588784A (en) * | 2014-10-23 | 2016-05-18 | 北京纳米能源与系统研究所 | A continuous measurement device for liquid densities |
| CN105606459A (en) * | 2016-02-04 | 2016-05-25 | 香港城市大学深圳研究院 | In-situ torque testing device for micro-nano scale materials and observing device |
| CN107036934A (en) * | 2017-04-27 | 2017-08-11 | 华电电力科学研究院 | A kind of oil product air release value determines device and method |
| CN108627422A (en) * | 2018-06-05 | 2018-10-09 | 江苏海基新能源股份有限公司 | A kind of multi-functional density measurement device and application |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2080175U (en) * | 1990-09-22 | 1991-07-03 | 冶金工业部钢铁研究总院 | Subsidiary device of electronic scale density measuring |
| CN2216247Y (en) * | 1992-09-10 | 1995-12-27 | 杜安棣 | Liquid specific gravity real time measurer |
| JPH08271398A (en) * | 1995-03-30 | 1996-10-18 | Kosei Koki:Kk | Specific gravity measuring method for liquid material using load cell |
| CN2325772Y (en) * | 1997-04-25 | 1999-06-23 | 赵万山 | Digital displaying type instrument for investigating density |
-
2013
- 2013-07-01 CN CN2013102711516A patent/CN103344523A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2080175U (en) * | 1990-09-22 | 1991-07-03 | 冶金工业部钢铁研究总院 | Subsidiary device of electronic scale density measuring |
| CN2216247Y (en) * | 1992-09-10 | 1995-12-27 | 杜安棣 | Liquid specific gravity real time measurer |
| JPH08271398A (en) * | 1995-03-30 | 1996-10-18 | Kosei Koki:Kk | Specific gravity measuring method for liquid material using load cell |
| CN2325772Y (en) * | 1997-04-25 | 1999-06-23 | 赵万山 | Digital displaying type instrument for investigating density |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105588784A (en) * | 2014-10-23 | 2016-05-18 | 北京纳米能源与系统研究所 | A continuous measurement device for liquid densities |
| CN105067481A (en) * | 2015-07-09 | 2015-11-18 | 浙江蓝箭称重技术有限公司 | Digital mud specific gravity tester and testing method |
| CN105067481B (en) * | 2015-07-09 | 2017-12-29 | 浙江蓝箭称重技术有限公司 | Digital mud balance tester and method of testing |
| CN105606459A (en) * | 2016-02-04 | 2016-05-25 | 香港城市大学深圳研究院 | In-situ torque testing device for micro-nano scale materials and observing device |
| CN105606459B (en) * | 2016-02-04 | 2018-07-13 | 香港城市大学深圳研究院 | Torsion-testing apparatus in situ and observation device for micro/nano-scale material |
| CN107036934A (en) * | 2017-04-27 | 2017-08-11 | 华电电力科学研究院 | A kind of oil product air release value determines device and method |
| CN108627422A (en) * | 2018-06-05 | 2018-10-09 | 江苏海基新能源股份有限公司 | A kind of multi-functional density measurement device and application |
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Application publication date: 20131009 |
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