CN103674772B - The temperature compensation of diesel oil density - Google Patents
The temperature compensation of diesel oil density Download PDFInfo
- Publication number
- CN103674772B CN103674772B CN201310625796.5A CN201310625796A CN103674772B CN 103674772 B CN103674772 B CN 103674772B CN 201310625796 A CN201310625796 A CN 201310625796A CN 103674772 B CN103674772 B CN 103674772B
- Authority
- CN
- China
- Prior art keywords
- density
- temperature
- temperature sensor
- diesel oil
- chip microcomputer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
A temperature compensation for diesel oil density, comprises, and can measure the temperature sensor acquisition module of diesel fuel temperature, and this temperature sensor acquisition module comprises temperature sensor, and described temperature sensor is for measuring diesel fuel temperature; Can receive temperature signal that temperature sensor acquisition module transmits to go forward side by side the single chip processing module of row operation, this single chip processing module mainly comprises a single-chip microcomputer, and for calculating diesel oil density, described temperature sensor is connected with microcontroller communication by unibus; Be connected with single chip processing module, and can export the communication module of result of calculation, the diesel oil density signal that single-chip microcomputer calculates by this communication module exports; The PC be connected by USB port communication with communication module, the density under the standard density calculated by single-chip microcomputer and Current Temperatures outputs to PC.Use the present invention, can in measure system based on MCU, carry out temperature compensation to density easily and obtain standard density, decrease storage space and table look-up and computing time.
Description
Technical field
The present invention relates to fuel measurement technical field, be specifically related to a kind of temperature compensation of diesel oil density.
Background technology
As can be seen from " beeliner fuel management way " that 5 days June nineteen ninety of the Ministry of Railways is issued, the sampling of locomotive fuel oil and density calculation are carried out according to " oil and liquid petroleum product ".In other words, locomotive fuel oil belongs to " oil and liquid petroleum product ".
According to National Standard of the People's Republic of China's " prtro-chemistry engineering " GB/T1885-1998, for " crude oil, lubricating oil and other liquid petroleum product ", first the pseudodensity at a certain temperature must be converted into standard density, again according to standard density, converse the volume-correction coefficient being adapted to standard volume, the locomotive fuel oil volume of different temperatures different densities could be converted into standard volume like this.
" beeliner fuel management way " the 16th article regulation: for reaching the accurately reasonable of fuel distribution density, set up density measurement system.Fuel metering person answers every day to providing the density measurement of oil tank once, charge to " fuel density detection book " (iron oil 10), and try to achieve the mean value of the fuel distribution density whole month, the reference foundation of density is provided as next month, also should consider that temperature Change and the trade mark of next month change factor, jointly density is determined by thermal technology personnel, person on duty, gauger, fill in " fuel distribution density adjustment advice note " (iron oil 11), forbid to adjust density to balance profit and loss.
This regulation shows that the economic benefit impact of fuel density on railway interests is very large, and due to the backwardness of detection means, can only to " every day be to providing the density measurement of oil tank once ", " and trying to achieve the mean value of the fuel distribution density whole month, the reference foundation as next month granting density ".The present invention can measure temperature and the density of each locomotive in real time, reaches the object of " forbidding to adjust density to balance profit and loss " by technological means.
If the patent No. is the patent of 201110173924.8, disclose a kind of can the Optical Fiber Vortex-Shedding Flowmeter of simultaneously measuring tempeature, density; The patent No. is 201110180191.0, discloses a kind of integrated fluid sensor based on measuring fluid density, pressure and temperature while MEMS technology; The patent No. is 201210240485.2 disclose a kind of high-precision liquid level, temperature, density multifunctional measuring system; The patent No. is 91216649.5 disclose a kind of temp. densimeter for liquid sampling; Obtained a result by these patent retrievals, do not reflect the mathematical relation that the density at the temperature and this temperature measured exists.
Summary of the invention
Technical matters to be solved by this invention is to provide one in measure system based on MCU, to carry out temperature compensation easily to density and obtain standard density, decreases storage space and tables look-up and the temperature compensation of diesel oil density of computing time.
Technical matters to be solved by this invention realizes by the following technical solutions:
A temperature compensation for diesel oil density, comprises,
The temperature sensor acquisition module of diesel fuel temperature can be measured, this temperature sensor acquisition module comprises temperature sensor, described temperature sensor is for measuring diesel fuel temperature, and described temperature sensor adopts sensor with data readout AD converter analog quantity to be converted to the sensor of digital quantity;
Temperature signal that temperature sensor acquisition module transmits can be received to go forward side by side the single chip processing module of row operation, this single chip processing module mainly comprises a single-chip microcomputer, for calculating diesel oil density, described temperature sensor is connected with microcontroller communication by data line or AD converter;
Be connected with single chip processing module, and can export the communication module of result of calculation, the diesel oil density signal that single-chip microcomputer calculates by this communication module exports.
Single-chip microcomputer calculates diesel oil density, wherein temperature unit by following computing method: DEG C; Density unit: kg/m
3):
Suppose, for 20 DEG C of density p
20(i.e. standard density) is at 807-881kg/m
3the diesel oil of scope, the density p (t) under temperature t (-20-60) scope describes with the available following formula of the relation of temperature t: compared with data 1, error≤1kg/m
3
ρ (t)=-0.69*t+ ρ
20+ 13.8 formula 1
Diesel oil density ρ (t) under known a certain temperature t (-20-60), then can calculate standard density ρ
20
ρ
20=ρ (t)+0.69*t – 13.8 formula 2
Known at t (-20≤t≤60) temperature, record density be ρ (t), then the density p (T) under arbitrary temperature T (-20≤T≤60) can be calculated as follows
ρ(T)＝-0.69T+ρ(t)+0.69t
=0.69 (t – T)+ρ (t) formula 3.
Data 1 is for " table standard of petroleum product density meter is calculated in petroleum products metering quickly " oil is static and lighter hydrocarbons measurement standard specified administrative department compiles, and China Standards Press publishes in September, 2005, and this is Primary Reference foundation of the present invention.
The invention has the beneficial effects as follows:
1) diesel oil density changes along with temperature variation, uses the present invention, can in measure system based on MCU, carry out temperature compensation easily to density and obtain standard density, decreases storage space and tables look-up and computing time.
2) in data 1, temperature range-20-60 DEG C, standard density is at 807-881kg/m
3the content of scope nearly 90 pages, if form is stored in the storer of single-chip microcomputer, at least needs 90K byte.And this table is not the bivariate table of a standard, Electronic saving and single-chip microcomputer are tabled look-up more complicated, and the present invention does not need to store table content.
3) even if store the form in data 1, also need interpolation calculation for the numerical value that can not directly find, the present invention only needs a simple computation just can.
Accompanying drawing explanation
Fig. 1 is present system block scheme;
Fig. 2 is single-chip microcomputer FB(flow block) of the present invention.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
A temperature compensation for diesel oil density, comprises,
The temperature sensor acquisition module of diesel fuel temperature can be measured, this temperature sensor acquisition module comprises temperature sensor, described temperature sensor is for measuring diesel fuel temperature, and described temperature sensor adopts sensor with data readout or by AD converter, analog quantity converted to the sensor of digital quantity;
Can receive temperature signal that temperature sensor acquisition module transmits to go forward side by side the single chip processing module of row operation, this single chip processing module mainly comprises a single-chip microcomputer, and for calculating diesel oil density, described temperature sensor is connected with microcontroller communication by unibus;
Be connected with single chip processing module, and can export the communication module of result of calculation, the diesel oil density signal that single-chip microcomputer calculates by this communication module exports;
The PC be connected by USB port communication with communication module, the density under the standard density calculated by single-chip microcomputer and Current Temperatures outputs to PC.
System connects according to Fig. 1, and DS18B20 selected by temperature sensor, and by unibus and microcontroller communication, Atmega8 selected by single-chip microcomputer, and communication module selects CH340T, and PC (computing machine) is by USB port communication.Fuel density ρ (t) of this fuel tank and relevant temperature t are by computer installation in single-chip microcomputer, and the density under standard density and Current Temperatures, according to the works of Fig. 2, is outputted to computing machine by single-chip microcomputer.
Described single-chip microcomputer calculates fuel density, wherein temperature unit by following computing method: DEG C; Density unit: kg/m
3):
Suppose, for 20 DEG C of density p
20(i.e. standard density) is at 807-881kg/m
3the diesel oil of scope, the density p (t) under temperature t (-20-60) scope describes with the available following formula of the relation of temperature t: (compared with data 1, error≤1kg/m
3)
ρ (t)=-0.69*t+ ρ
20+ 13.8 formula 1
Fuel density ρ (t) under known a certain temperature t (-20-60), then can calculate standard density ρ
20
ρ
20=ρ (t)+0.69*t – 13.8 formula 2
Known at t (-20≤t≤60) temperature, record density be ρ (t), then the density p (T) under arbitrary temperature T (-20≤T≤60) can be calculated as follows
ρ(T)＝-0.69T+ρ(t)+0.69t
=0.69 (t – T)+ρ (t) formula 3.
Data 1 is for " table standard of petroleum product density meter is calculated in petroleum products metering quickly " oil is static and lighter hydrocarbons measurement standard specified administrative department compiles, and China Standards Press publishes in September, 2005, and this is Primary Reference foundation of the present invention.
Citing checking:
Citing 1:
The density that diesel oil in known fuel tank records 20 DEG C time is 807kg/m
3, temperature sensor records Current Temperatures 6 DEG C, is 807kg/m according to data 1 standard pseudodensity when finding at 6 DEG C for the 177th page
3, corresponding density is 817kg/m
3, calculate ρ (6)=-0.69*6+807+13.8=816.66 according to formula 1, compared with tabling look-up, error 0.34kg/m
3.
Citing 2:
It is 901kg/m that diesel oil in known fuel tank records density at-10 DEG C
3, checking in standard density (namely 20 DEG C time density) according to data 1 at the 258th page is 880.8kg/m
3, checking in standard density 880.4 the pseudodensity of 60 DEG C at the 233rd page is 853, and standard density 882.4 is 855 the pseudodensity of 60 DEG C, carries out mathematic interpolation by the requirement of data 1, and to obtain standard density be 880.8 is 853.4 the pseudodensity of 60 DEG C.
According to formula 2, ρ
20=901+0.69* (-10) – 13.8=880.3, compared with tabling look-up, error 0.5kg/m
3.
According to formula 3, ρ (60)=0.69* (-10-60)+901=852.7, compared with tabling look-up, error 0.7kg/m
3.
More than show and describe ultimate principle of the present invention and principal character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and instructions just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (1)
1. a temperature compensation means for diesel oil density, is characterized in that: comprise, and can measure the temperature sensor acquisition module of diesel fuel temperature, and this temperature sensor acquisition module comprises temperature sensor, and described temperature sensor is for measuring diesel fuel temperature; And temperature signal that temperature sensor acquisition module transmits can be received to go forward side by side the single chip processing module of row operation, this single chip processing module mainly comprises a single-chip microcomputer, for calculating diesel oil density, described temperature sensor is connected with microcontroller communication by data line or AD converter; And be connected with single chip processing module, and the communication module of result of calculation can be exported, the diesel oil density signal that single-chip microcomputer calculates by this communication module exports; Compensation method is as follows:
Single-chip microcomputer calculates diesel oil density, wherein temperature unit by following computing method: DEG C; Density unit: kg/m
3:
Suppose, for 20 DEG C of density p
20, i.e. standard density, at 807-881kg/m
3the diesel oil of scope, the available following formula of relation of the density p (t) under the scope of temperature-20≤t≤60 and temperature t describes:
ρ (t)=-0.69*t+ ρ
20+ 13.8 formula 1
Diesel oil density ρ (t) under known a certain temperature-20≤t≤60, then can calculate standard density ρ
20
ρ
20=ρ (t)+0.69*t – 13.8 formula 2
Density p (T) then under arbitrary temperature T can be calculated as follows, wherein, and-20≤T≤60
ρ(T)＝-0.69T+ρ(t)+0.69t
=0.69 (t – T)+ρ (t) formula 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625796.5A CN103674772B (en) | 2013-11-27 | 2013-11-27 | The temperature compensation of diesel oil density |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310625796.5A CN103674772B (en) | 2013-11-27 | 2013-11-27 | The temperature compensation of diesel oil density |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103674772A CN103674772A (en) | 2014-03-26 |
| CN103674772B true CN103674772B (en) | 2015-10-28 |
Family
ID=50312990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310625796.5A Active CN103674772B (en) | 2013-11-27 | 2013-11-27 | The temperature compensation of diesel oil density |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103674772B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105675436A (en) * | 2016-01-07 | 2016-06-15 | 安徽华润金蟾药业股份有限公司 | Cinobufagin single-effect concentration process density detecting system and method |
| CN111380776A (en) * | 2018-12-27 | 2020-07-07 | 中国石油天然气股份有限公司 | Method and device for determining density of crude oil in stratum |
| CN110146411A (en) * | 2019-05-06 | 2019-08-20 | 湖北锂诺新能源科技有限公司 | A kind of method of on-line measurement lithium battery slurry viscosity |
| CN112525289A (en) * | 2019-09-19 | 2021-03-19 | 北京昊科航科技有限责任公司 | Liquid storage tank section measuring instrument |
| CN114689460B (en) * | 2022-06-01 | 2022-08-23 | 西北大学 | Crude oil density value correction method for online density automatic measurement |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447106A (en) * | 2003-04-21 | 2003-10-08 | 李兴伟 | Online portable multi-functional intellgence fluid density meters |
| CN203101217U (en) * | 2012-12-06 | 2013-07-31 | 长安大学 | Liquid density measurement device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2846590B2 (en) * | 1994-12-06 | 1999-01-13 | 京都電子工業株式会社 | Temperature compensation method for physical quantity of fluid |
-
2013
- 2013-11-27 CN CN201310625796.5A patent/CN103674772B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1447106A (en) * | 2003-04-21 | 2003-10-08 | 李兴伟 | Online portable multi-functional intellgence fluid density meters |
| CN203101217U (en) * | 2012-12-06 | 2013-07-31 | 长安大学 | Liquid density measurement device |
Non-Patent Citations (1)
| Title |
|---|
| 国家质量技术监督局.GB/T1885-1998 石油计量表.《GB/T1885-1998 石油计量表》.中国标准出版社,1998,1-14. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103674772A (en) | 2014-03-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103674772B (en) | The temperature compensation of diesel oil density | |
| CN104697497B (en) | A kind of digital obliquity sensor and its nonlinear temperature compensation method | |
| CN103335589B (en) | The scaling method of welded rail temperature stress sensing node | |
| CN201352236Y (en) | Harmonic power meter based on Kaiser window double-spectrum-line interpolation FFT | |
| CN103335682A (en) | Measuring method for gas flow of natural gas | |
| CN204881791U (en) | A capacity calibrating installation that is used for car tank wagon oil to exchange | |
| CN102650538A (en) | Combined measurement system for automobile fuel consumption and calibration method for oil tank liquid level sensor of | |
| CN104266703A (en) | Multifunctional instrument for measuring fuel consumption of diesel engine | |
| CN201476825U (en) | Electrical resistance tomography correcting electromagnetic flow meter | |
| CN103323067A (en) | Method for measuring locomotive fuel quantity capable of being converted into standard volume | |
| CN204461518U (en) | A kind of heating type turbine integral type flowmeter | |
| CN206974494U (en) | Civilian ultrasonic wave gas meter with accurate compensation temperature and pressure functional | |
| CN208887716U (en) | Tugboat is promoted mainly into engine fuel consumption metering device | |
| CN106597083A (en) | Parallel reactive power compensation device electricity saving quantity measurement uncertainty evaluation method | |
| CN208383172U (en) | A kind of tank capacity detection device | |
| CN2645064Y (en) | Out pushing type digital wellhead pressure meter | |
| CN205593523U (en) | Water conservancy project multifunctional measuring device | |
| CN105258884A (en) | Bridge alignment real-time monitoring system based on high-precision inclination angle sensors | |
| CN204214489U (en) | A kind of bucking-out system of ultrasonic flow meter peakvalue's checking | |
| CN104406641A (en) | Method and compensation system for detecting peak value of ultrasonic flow meter | |
| CN205539193U (en) | Diphase is examined phase place and is compared system based on homophase point | |
| CN205301428U (en) | Computer protection device of area measurement function | |
| CN204730893U (en) | A kind of integrated iteration flowmeter | |
| CN202757614U (en) | Intelligent clinometer based on Control Area Network Open (CanOpen) field bus | |
| CN201757277U (en) | Pipeline leakage detecting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190104 Address after: 225300 Pearl River Road, Yongan Town, Taizhou, Jiangsu Province, 108 Patentee after: Li Wenkang Address before: 102600 3 floor, 2 building, No. 4 Daxing District Garden Road, Beijing, 1 unit 317 Patentee before: BEIJING ZHITOUJIA INTELLECTUAL PROPERTY OPERATION CO.,LTD. Effective date of registration: 20190104 Address after: 102600 3 floor, 2 building, No. 4 Daxing District Garden Road, Beijing, 1 unit 317 Patentee after: BEIJING ZHITOUJIA INTELLECTUAL PROPERTY OPERATION CO.,LTD. Address before: 233000 4th Floor, Block C, Incubation Base Building, 7829 Huangshan Avenue, Bengbu City, Anhui Province Patentee before: Anhui Qiutian Electronics Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP02 | Change in the address of a patent holder |
Address after: 210000 No. 128 Shanxi Road, Gulou District, Nanjing City, Jiangsu Province Patentee after: Li Wenkang Address before: 225300 No. 108 Mingzhu Avenue, Yonganzhou Town, Gaogang District, Taizhou City, Jiangsu Province Patentee before: Li Wenkang |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: Room 102, unit 1, building 10, Wenjin garden, Huajin South Road, Yijiang District, Wuhu City, Anhui Province 241000 Patentee after: Li Wenkang Address before: 210000 No. 128 Shanxi Road, Gulou District, Nanjing City, Jiangsu Province Patentee before: Li Wenkang |
|
| CP02 | Change in the address of a patent holder |