CN101672684B - Method for measuring dead weight of piston pressure gauge with ball bearing - Google Patents
Method for measuring dead weight of piston pressure gauge with ball bearing Download PDFInfo
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- CN101672684B CN101672684B CN2009101805115A CN200910180511A CN101672684B CN 101672684 B CN101672684 B CN 101672684B CN 2009101805115 A CN2009101805115 A CN 2009101805115A CN 200910180511 A CN200910180511 A CN 200910180511A CN 101672684 B CN101672684 B CN 101672684B
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- piston
- ball bearing
- pressure gauge
- manometer
- band ball
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Abstract
The invention provides a method for measuring dead weight of a piston pressure gauge with a ball bearing, comprising the following steps: adopting a high-precision electronic balance to measure the mass m01 of a simple piston pressure gauge; connecting the piston pressure gauge with the ball bearing and the simple piston pressure gauge and adding a weight with mass of m1 and a weight with mass of m2 to the simple piston pressure gauge and the piston pressure gauge with the ball bearing respectively to balance the simple piston pressure gauge and the piston pressure gauge with the ball bearing; and figuring out the dead weight of the piston pressure gauge with the ball bearing in the working condition by adopting the principle of hydrostatic balance based on the effective area s1 of the simple piston pressure gauge and the effective area s2 of the piston pressure gauge with the ball bearing.
Description
Technical field
The present invention relates to detection range, in particular to a kind of measuring method with the ball bearing dead weight of piston pressure gauge.
Background technology
What pin-point accuracy digital pressure gauge and pressure transducer were examined and determine is force value, according to Pascal's theorem
G
0Be the deadweight of piston gage, G is a counterweight weight.That is, can know that the generation of normal pressure is relevant with specific weight weight with the piston deadweight from formula.Specific weight weight can be passed through corresponding electronic balance weighing.
A kind of definite method of piston deadweight is provided: take out piston rod and piston plate directly with the electronic balance weighing that adapts to, and confirm the piston deadweight in the correlation technique.
Because piston is immersed in rotation continuously in the actuating medium in working order down; Deadweight under its duty receives the influence of many other reasonses; As: the viscosity of actuating medium is to the influence of its weight, and the friction force that piston rod produces in rotary course is to the influence of its deadweight.Therefore, the deadweight under the pistons work state and be not equal to the deadweight under its stationary state.
The inventor find the measuring method in the correlation technique measured be the piston deadweight under the stationary state; It is the force value that its piston deadweight produces; Can not truly reflect the force value that piston is conducted oneself with dignity and produced down in working order, cause the accuracy of the measured force value of pressure gauge lower.
Summary of the invention
The present invention aims to provide a kind of measuring method with the ball bearing dead weight of piston pressure gauge; Can solve measuring method in the correlation technique measured be the piston deadweight under the stationary state; It is the force value that its piston deadweight produces; Can not truly reflect the force value that piston is conducted oneself with dignity and produced down in working order, cause the lower problem of accuracy of the measured force value of pressure gauge.
In an embodiment of the present invention, a kind of measuring method with the ball bearing dead weight of piston pressure gauge is provided, has may further comprise the steps:
Adopt the quality m of the manometric piston of high-precision electronic balance measurement simple piston
01
To be with the ball bearing piston manometer to link to each other with the simple piston pressure gauge, on simple piston pressure gauge and band ball bearing piston manometer, adding quality respectively is m
1, m
2Counterweight, make simple piston pressure gauge and band ball bearing piston manometer balance;
According to the manometric useful area s of simple piston
1Useful area s with band ball bearing piston manometer
2, utilize the hydrostatic equilibrium principle to calculate the own wt of band ball bearing piston manometer under the duty.
In the above-described embodiments, through the manometric quality of simple piston is measured, and it is linked to each other with band ball bearing piston manometer, the simple piston pressure gauge be with that to add quality respectively on the ball bearing piston manometer be m
1, m
2Counterweight, make simple piston pressure gauge and band ball bearing piston manometer balance, thus according to the manometric useful area s of simple piston
1Useful area s with band ball bearing piston manometer
2Utilize the hydrostatic equilibrium principle to calculate the metering system of the own wt of band ball bearing piston manometer under the duty; Thereby the force value that the deadweight that in measuring process, can obtain the duty lower piston produces; Make the calibration of pressure gauge and pressure transducer comparatively accurate, thus overcome the measuring method in the correlation technique measured be the piston deadweight under the stationary state, i.e. the force value that its piston deadweight produces; Can not truly reflect the force value that piston is conducted oneself with dignity and produced down in working order, cause the lower problem of accuracy of the measured force value of pressure gauge.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present invention, constitutes the application's a part, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 shows the process flow diagram of the measuring method of band ball bearing dead weight of piston pressure gauge according to an embodiment of the invention.
Embodiment
Below with reference to accompanying drawing and combine embodiment, specify the present invention.
Relate to two kinds of piston structures in the measurement, a kind of is that measurement range (0.1～6) MPa piston manometer is simple piston, in working order with static state in sole mass identical basically, another kind is measurement range (1～60MPa) a band ball bearing piston.The simple piston structure is exactly that therefore available direct weighing method obtains by piston rod and piston plate combination, and promptly the electronic balance with high accuracy carries out weighing; And band ball bearing structure of piston is complicated, and the weight of its piston rod and piston plate (static state) adopts balancing method that it is measured with the weight of (dynamical state) is different because the rotation of piston will produce friction down in working order.
Fig. 1 shows the process flow diagram of the measuring method of band ball bearing dead weight of piston pressure gauge according to an embodiment of the invention, may further comprise the steps:
S102, the quality m of the manometric piston of employing high-precision electronic balance measurement simple piston
01
S104 will be with the ball bearing piston manometer to link to each other with the simple piston pressure gauge, and on simple piston pressure gauge and band ball bearing piston manometer, adding quality respectively is m
1, m
2Counterweight, make simple piston pressure gauge and band ball bearing piston manometer balance;
S106 is according to the manometric useful area s of simple piston
1Useful area s with band ball bearing piston manometer
2, utilize the hydrostatic equilibrium principle to calculate the own wt of band ball bearing piston manometer under the duty.
In the present embodiment, through the manometric quality of simple piston is measured, and it is linked to each other with band ball bearing piston manometer, the simple piston pressure gauge be with that to add quality respectively on the ball bearing piston manometer be m
1, m
2Counterweight, make simple piston pressure gauge and band ball bearing piston manometer balance, thus according to the manometric useful area s of simple piston
1Useful area s with band ball bearing piston manometer
2Utilize the hydrostatic equilibrium principle to calculate the metering system of the own wt of band ball bearing piston manometer under the duty; Thereby the force value that the deadweight that in measuring process, can obtain the duty lower piston produces; Make the calibration of pressure gauge and pressure transducer comparatively accurate, thus overcome the measuring method in the correlation technique measured be the piston deadweight under the stationary state, i.e. the force value that its piston deadweight produces; Can not truly reflect the force value that piston is conducted oneself with dignity and produced down in working order, cause the lower problem of accuracy of the measured force value of pressure gauge.Through adopting the measuring method of embodiments of the invention, the pressure gauge that measures deadweight is more identical with the piston manometer deadweight under the duty, thereby measuring error is reduced.
Preferably, in above-mentioned measuring method, according to the manometric useful area s of simple piston
1Useful area s with band ball bearing piston manometer
2, the own wt that utilizes the hydrostatic equilibrium principle to calculate band ball bearing piston manometer under the duty is specially: according to formula
Calculate the quality m of its piston under the band ball bearing piston manometer duty
02* g; Wherein, s
1, s
2Be respectively the useful area of simple piston pressure gauge and band ball bearing piston manometer, m
1, m
2Be respectively the simple piston pressure gauge and be with the counterweight quality of adding on the ball bearing piston manometer, m
01Be the quality of the manometric piston of simple piston, m
02Be the quality of its piston under the band ball bearing piston manometer duty, g is an acceleration of gravity.
Preferably, in above-mentioned measuring method, further comprising the steps of: multimetering obtains the quality m of its piston under a plurality of band ball bearing piston manometer duties
02* g; Quality m to a plurality of pistons
02* g averages as the deadweight under the band ball bearing piston manometer duty.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the measuring method with the ball bearing dead weight of piston pressure gauge is characterized in that, may further comprise the steps:
Adopt the quality m of the manometric piston of high-precision electronic balance measurement simple piston
01
To be with the ball bearing piston manometer to link to each other with said simple piston pressure gauge, on said simple piston pressure gauge and said band ball bearing piston manometer, adding quality respectively is m
1, m
2Counterweight, make said simple piston pressure gauge and said band ball bearing piston manometer balance;
According to the manometric useful area s of said simple piston
1Useful area s with said band ball bearing piston manometer
2, utilize the hydrostatic equilibrium principle to calculate the own wt of said band ball bearing piston manometer under the duty.
2. measuring method according to claim 1 is characterized in that, according to the manometric useful area s of said simple piston
1Useful area s with said band ball bearing piston manometer
2, the own wt that utilizes the hydrostatic equilibrium principle to calculate said band ball bearing piston manometer under the duty is specially:
According to formula
Calculate the quality m of its piston under the said band ball bearing piston manometer duty
02 *G; Wherein, s
1, s
2Be respectively the useful area of said simple piston pressure gauge and said band ball bearing piston manometer, m
1, m
2Be respectively the counterweight quality of adding on said simple piston pressure gauge and the said band ball bearing piston manometer, m
01Be the quality of the manometric piston of said simple piston, m
02Be the quality of its piston under the said band ball bearing piston manometer duty, g is an acceleration of gravity.
3. measuring method according to claim 2 is characterized in that, and is further comprising the steps of:
Multimetering obtains the quality m of its piston under a plurality of said band ball bearing piston manometer duties
02 *G;
To a plurality of said deadweight m
02 *G averages as the quality of its piston under the said band ball bearing piston manometer duty.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101805115A CN101672684B (en) | 2009-10-19 | 2009-10-19 | Method for measuring dead weight of piston pressure gauge with ball bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101805115A CN101672684B (en) | 2009-10-19 | 2009-10-19 | Method for measuring dead weight of piston pressure gauge with ball bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101672684A CN101672684A (en) | 2010-03-17 |
| CN101672684B true CN101672684B (en) | 2012-01-11 |
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ID=42020007
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101805115A Active CN101672684B (en) | 2009-10-19 | 2009-10-19 | Method for measuring dead weight of piston pressure gauge with ball bearing |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105466631B (en) * | 2015-12-09 | 2018-06-22 | 湖南省计量检测研究院 | A kind of calibration method and calibrating installation of piston gage piston effective area |
| CN110050181B (en) * | 2016-09-23 | 2021-02-09 | 斯派克塔震动科技与声学德累斯顿有限公司 | Apparatus and method for dynamically calibrating pressure sensor |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2035078U (en) * | 1988-05-24 | 1989-03-29 | 姚绪秋 | Hydraulic balance |
| CN1125844A (en) * | 1994-12-30 | 1996-07-03 | 张兆祥 | Method of hydraulic metering |
| CN2238427Y (en) * | 1995-11-08 | 1996-10-23 | 钟世强 | Hydraulic balance weighing apparatus |
| CN2371548Y (en) * | 1999-04-30 | 2000-03-29 | 宋吉成 | Hydraulic jack capable of weighing and testing force |
| DE10012747A1 (en) * | 2000-03-16 | 2002-02-14 | Volkswagen Ag | Hydraulic device for detecting the weight category of a vehicle passenger sitting on a vehicle seat prior to airbag release, uses a hydraulic cylinder to activate a power sensor with two electric magnetically sensitive switches |
-
2009
- 2009-10-19 CN CN2009101805115A patent/CN101672684B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2035078U (en) * | 1988-05-24 | 1989-03-29 | 姚绪秋 | Hydraulic balance |
| CN1125844A (en) * | 1994-12-30 | 1996-07-03 | 张兆祥 | Method of hydraulic metering |
| CN2238427Y (en) * | 1995-11-08 | 1996-10-23 | 钟世强 | Hydraulic balance weighing apparatus |
| CN2371548Y (en) * | 1999-04-30 | 2000-03-29 | 宋吉成 | Hydraulic jack capable of weighing and testing force |
| DE10012747A1 (en) * | 2000-03-16 | 2002-02-14 | Volkswagen Ag | Hydraulic device for detecting the weight category of a vehicle passenger sitting on a vehicle seat prior to airbag release, uses a hydraulic cylinder to activate a power sensor with two electric magnetically sensitive switches |
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| Publication number | Publication date |
|---|---|
| CN101672684A (en) | 2010-03-17 |
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Address after: 412002 Dong Jia Duan, Lusong District, Zhuzhou City, Hunan Province Patentee after: China Hangfa South Industrial Co. Ltd. Address before: 412002 Dong Jia Duan, Lusong District, Zhuzhou City, Hunan Province Patentee before: China Southern Airlines Industry (Group) Co., Ltd. |
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