CN108088594A - A kind of wide-range force snesor combination measurement method - Google Patents
A kind of wide-range force snesor combination measurement method Download PDFInfo
- Publication number
- CN108088594A CN108088594A CN201711100836.9A CN201711100836A CN108088594A CN 108088594 A CN108088594 A CN 108088594A CN 201711100836 A CN201711100836 A CN 201711100836A CN 108088594 A CN108088594 A CN 108088594A
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- range
- force
- force snesor
- wide
- sensor
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/26—Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload
Abstract
The invention discloses a kind of wide-range force snesor combination measurement methods, it is combined applied to the force snesor to various different ranges, range extension scope, belong to Force measure field, the present invention uses the combination of two or two or more force snesors, the force snesor range of 10%~100% traditional range is made to be expanded to 1%~100% range or higher, the combination of a force snesor completes the function of more force snesors, substantially reduces the production cost of user；Existing laboratory will possess the force snesor of 10 specifications, combination that is of the invention then using 2 force snesors.
Description
Technical field：
The present invention relates to a kind of wide-range force snesor combination measurement method, applied to the force snesor group to various different ranges
It closes, range extension scope belongs to Force measure field.
Background technology：
When force snesor is used for dynameter, the measurement range for being limited to force snesor (is usually the 10%- of full scale
100%), equipment range also can only be corresponding with the range of force snesor, and needing to change different power more than Force sensor measuring scope passes
Sensor, and the force snesor of more exchange device will increase manufacture cost and human cost, and influence equipment precision.
As a laboratory need 100kN, 200kN, 300kN, 400kN, 500kN, 600kN, 700kN, 800kN,
The detectability of 900kN, 1000kN standard dynamometer is needed by the vertification regulation of standard dynamometer by 10 points of detections（10%-
100% is 10 points uniformly distributed）, and continuous detection is needed during detection, due to being applied to the single proof force transducer range model of detection device
Enclose also for 10%-100%, for meet needs at least configure 100kN, 200kN, 300kN, 400kN, 500kN, 600kN, 700kN,
The standard force snesor of 10 specifications such as 800kN, 900kN, 1000kN.
The content of the invention：
It is an object of the invention to provide a kind of range ability is very big, the low wide-range force snesor measurement in a closed series side of production cost
Method.
The technical solution that the present invention takes to achieve the above object is as follows：
A kind of wide-range force snesor combination measurement method, which is characterized in that carried out using wide-range force snesor combined mechanism
Measurement：
The wide-range force snesor combined mechanism includes：Large range stress sensor, sensor connecting plate, small-range power sensing
Device, limit base, force value eliminator, large range stress sensor are connected with the upper surface of sensor connecting plate, sensor connecting plate
Lower face is connected with the upper surface of small-measuring range force transducer, the bottom surface of small-measuring range force transducer and the upper surface phase of force value eliminator
Even, the lower face of force value eliminator is connected with limit base；
During measurement, when force snesor combined mechanism stress is no more than setting force value, sensor connecting plate is not contacted with limit base,
The power F that large range stress sensor is subject to be equal to small-measuring range force transducer stress F1, at this time force snesor combined mechanism stress with
Subject to the output of small-measuring range force transducer；When force snesor combined mechanism stress be more than setting force value when, sensor connecting plate with
Limit base contacts, and generates the directed force F 2 to limit base, and since machinery is placed restrictions on, F1 is kept relative constant at this time, and the size of F1 is not
More than the full scale force value of small-measuring range force transducer, the power more than F1 is born by limit base, at this time force snesor combined mechanism by
Power is subject to the output of large range stress sensor.
Further setting is as follows：
Described sets the range upper limit of the force value as small-measuring range force transducer.
When the stress of force snesor combined mechanism is no more than setting force value, sensor connecting plate is not contacted with limit base,
When force snesor combined mechanism stress is more than setting force value, sensor connecting plate is contacted with limit base.
The equipping rules of the force snesor are：The Lower Range of large range stress sensor is not more than small-measuring range force transducer
The range upper limit,
The sensor connecting plate and limit base should keep enough rigidity, can be protected after sensor connecting plate is contacted with limit base
It is relative constant to hold stress.
Under original state, sensor connecting plate keeps certain gap H, gap H to be sensed for small-range power with limit base
The deflection of force value eliminator during tolerance journey upper limit value.
Force value eliminator is a kind of stress and the relevant mechanism of deformation, and when the force value that it is set, deflection is equal to
The gap H that the outside of original state lower sensor connecting plate and limit base is kept.
The force value eliminator uses any one of spring structure, air cylinder structure, cylinder structure.
The large and small range sensors are single-sensor or multiple sensor combinations.
The force value eliminator uses air cylinder structure, including：Cylinder piston, cylinder block, check valve, inflation mechanism, cylinder
Piston, cylinder body form the cavity of a sealing, and inert gas has been filled in cavity.
Force value eliminator is used using cylinder structure, including：Piston, oil cylinder, accumulator, check valve, repairing mechanism, piston
The cavity of a sealing is formed with oil cylinder, oil cylinder is connected with after accumulator parallel connection with the oil outlet of check valve, the oil inlet of check valve
Mouth is connected with the oil outlet of repairing mechanism, repairing mechanism precharge pressure oil-filled to accumulator and reaching setting by check valve,
The pressure for making to keep constant between piston, oil cylinder by accumulator.
The present invention has the advantages that：
1st, the present invention uses the combination of two or two or more force snesors, makes the force snesor of 10%~100% traditional range
Range is expanded to 1%~100% range or higher, and the combination of a force snesor is completed the function of more force snesors, dropped significantly
The production cost of low user.Laboratory as the aforementioned will possess the force snesor of 10 specifications, and 2 power are then used using the present invention
The combination of sensor.
2nd, the configuration of the present invention is simple, production cost is low, applied widely, it is easy to accomplish mass production manufactures.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Description of the drawings：
The structure diagram of Fig. 1 force snesor combined mechanisms of the present invention（Small-range working condition）；
Another operating diagram of Fig. 2 force snesor combined mechanisms of the present invention（Wide range working condition）；
Fig. 3 inventions use the operating diagram of spring structure embodiment（Small-range working condition）；
Fig. 4 inventions use another operating diagram of spring structure embodiment（Wide range working condition）；
Fig. 5 present invention uses the operating diagram of air cylinder structure embodiment（Small-range working condition）；
Fig. 6 present invention uses another operating diagram of air cylinder structure embodiment（Wide range working condition）；
Fig. 7 present invention uses the operating diagram of cylinder structure embodiment（Small-range working condition）；
Fig. 8 present invention uses another operating diagram of cylinder structure embodiment（Wide range working condition）.
Figure label：Sensors of large measurement range 1, sensor connecting plate 2, small-range sensor 3, limit base 4, force value eliminator
5, cylinder piston 5.11, cylinder block 5.12, check valve 5.13, inflation mechanism 5.14, piston 5.1, oil cylinder 5.2, accumulator 5.3,
Check valve 5.4, repairing mechanism 5.5.
Specific embodiment：
As Figure 1-Figure 2, a kind of wide-range force snesor combined mechanism of the invention, including：Large range stress sensor 1 passes
Sensor connecting plate 2, small-measuring range force transducer 3, limit base 4, force value eliminator 5, large range stress sensor 1 and sensor connecting plate
2 upper surface is connected, and with the upper surface of small-measuring range force transducer 3 with being connected, small-range power passes for the lower face of sensor connecting plate 2
The bottom surface of sensor 3 is connected with the upper surface of force value eliminator 5, and the lower face of force value eliminator 5 is connected with the lower part of limit base 4.
A kind of wide-range force snesor combination measurement method of the present invention, step are as follows：
When the stress of force snesor combined mechanism is no more than setting force value（The range upper limit of small-measuring range force transducer 3）When, sensing
Device connecting plate 2 is not contacted with limit base 4, and the power F that large range stress sensor 1 is subject to is equal to the stress F1 of small-measuring range force transducer 3,
Force snesor combined mechanism stress is subject to the output of small-measuring range force transducer 3 at this time；When force snesor combined mechanism stress is big
In setting force value（The range upper limit of small-measuring range force transducer 3）When, sensor connecting plate 2 is contacted with limit base 4, is generated to /V
The directed force F 2 of seat 4, since machinery is placed restrictions on, F1 is kept relative constant at this time, and the size of F1 is no more than small-measuring range force transducer 3
Full scale force value, the power more than F1 are born by limit base 4, and force snesor combined mechanism stress is with large range stress sensor 1 at this time
Output subject to.
The equipping rules of force snesor are：The Lower Range of large range stress sensor 1 is no more than small-measuring range force transducer 3
The range upper limit.
Sensor connecting plate 2 and limit base 4 should keep enough rigidity, in sensor connecting plate 2 and 4 outer side joint of limit base
F1 can be kept to keep relative constant after touch.
Under original state, sensor connecting plate 2 keeps certain gap H, gap H to be passed for small-range power with limit base 4
The deflection of force value eliminator 5 during 3 range upper limit value of sensor.
Force value eliminator 5 is a kind of stress and the relevant mechanism of deformation, in the present solution, the force value set when it
When, deflection is equal to original state lower sensor connecting plate 2 and the gap H of the outside holding of limit base 4.According to different uses
It is required that spring structure, air cylinder structure, cylinder structure etc. may be employed.
Fig. 3-Fig. 4 is the force snesor combining structure using spring structure：
Force value eliminator is spring, the relation of sensor connecting plate and the gap H on the outside of limit base and setting force value F0 during design
By Hooke's law（F=Ks）It calculates.This structure is suitable for small-range Combined structure of sensor.
Fig. 5-Fig. 6 present invention uses the force snesor combining structure of air cylinder structure：
Force value eliminator includes：Cylinder piston 5.11, cylinder block 5.12, check valve 5.13, inflation mechanism 5.14, cylinder piston
5.11, cylinder block 5.12 forms the cavity of a sealing.It is characterized in that：The inert gas of equivalent pressure, gas are filled in cavity
Size, the blowing pressure of cylinder are calculated and determined according to setting force value F0 and its tolerance, operating ambient temperature.
Fig. 7-Fig. 8 present invention uses the force snesor combining structure of cylinder structure：
Force value eliminator includes：Piston 5.1, oil cylinder 5.2, accumulator 5.3, check valve 5.4, repairing mechanism 5.5,5.1 He of piston
Oil cylinder 5.2 forms the cavity of a sealing, and oil cylinder 5.2 is connected with after 5.3 parallel connection of accumulator with the oil outlet of check valve 5.4, single
It is connected to the oil inlet of valve 5.4 with the oil outlet of repairing mechanism 5.5.Repairing mechanism 5.5 can be by check valve 5.4 to accumulator
5.3 precharge pressures that are oil-filled and reaching setting.Piston 5.1, the pressure kept constant between oil cylinder 5.2 are made by accumulator.Oil cylinder
Size, the size of accumulator, precharge pressure according to setting force value F0 and its tolerance calculate determine.
Claims (10)
1. a kind of wide-range force snesor combination measurement method, which is characterized in that using wide-range force snesor combined mechanism into
Row measurement：
The wide-range force snesor combined mechanism includes：Large range stress sensor, sensor connecting plate, small-range power sensing
Device, limit base, force value eliminator, large range stress sensor are connected with the upper surface of sensor connecting plate, sensor connecting plate
Lower face is connected with the upper surface of small-measuring range force transducer, the bottom surface of small-measuring range force transducer and the upper surface phase of force value eliminator
Even, the lower face of force value eliminator is connected with limit base；
During measurement, when force snesor combined mechanism stress is no more than setting force value, sensor connecting plate is not contacted with limit base,
The power F that large range stress sensor is subject to be equal to small-measuring range force transducer stress F1, at this time force snesor combined mechanism stress with
Subject to the output of small-measuring range force transducer；When force snesor combined mechanism stress be more than setting force value when, sensor connecting plate with
Limit base contacts, and generates the directed force F 2 to limit base, and since machinery is placed restrictions on, F1 is kept relative constant at this time, and the size of F1 is not
More than the full scale force value of small-measuring range force transducer, the power more than F1 is born by limit base, at this time force snesor combined mechanism by
Power is subject to the output of large range stress sensor.
2. a kind of wide-range force snesor combination measurement method according to claim 1, it is characterised in that：The setting
Force value is the range upper limit of small-measuring range force transducer.
3. a kind of wide-range force snesor combination measurement method according to claim 1, it is characterised in that：Work as force snesor
When the stress of combined mechanism is no more than setting force value, sensor connecting plate is not contacted with limit base, when force snesor combined mechanism
When stress is more than setting force value, sensor connecting plate is contacted with limit base.
4. a kind of wide-range force snesor combination measurement method according to claim 1, it is characterised in that：The power sensing
The equipping rules of device are：The Lower Range of large range stress sensor is not more than the range upper limit of small-measuring range force transducer.
5. a kind of wide-range force snesor combination measurement method according to claim 1, it is characterised in that：The sensor
Connecting plate and limit base should keep enough rigidity, after sensor connecting plate is contacted with limit base stress can be kept relatively permanent
It is fixed.
6. a kind of wide-range force snesor combination measurement method according to claim 1, it is characterised in that：Original state
Under, sensor connecting plate keeps certain gap H, power when gap H is small-measuring range force transducer range upper limit value with limit base
It is worth the deflection of eliminator.
7. a kind of wide-range force snesor combination measurement method according to claim 1, it is characterised in that：The force value limit
Only device uses any one of spring structure, air cylinder structure, cylinder structure.
8. a kind of wide-range force snesor combination measurement method according to claim 1, it is characterised in that：It is described it is big,
Small-range sensor is single-sensor or multiple sensor combinations.
9. a kind of wide-range force snesor combination measurement method according to claim 1, it is characterised in that：The force value limit
Only device uses air cylinder structure, including：Cylinder piston, cylinder block, check valve, inflation mechanism, cylinder piston, cylinder body composition one are close
The cavity of envelope has been filled with inert gas in cavity.
10. a kind of wide-range force snesor combination measurement method according to claim 1, it is characterised in that：The force value
Eliminator is used using cylinder structure, including：Piston, oil cylinder, accumulator, check valve, repairing mechanism, piston and oil cylinder composition one
The cavity of a sealing, oil cylinder are connected with after accumulator parallel connection with the oil outlet of check valve, oil inlet and the repairing mechanism of check valve
Oil outlet connection, repairing mechanism precharge pressure oil-filled to accumulator and reaching setting by check valve made by accumulator
The pressure kept constant between piston, oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711100836.9A CN108088594A (en) | 2017-11-10 | 2017-11-10 | A kind of wide-range force snesor combination measurement method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711100836.9A CN108088594A (en) | 2017-11-10 | 2017-11-10 | A kind of wide-range force snesor combination measurement method |
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| CN108088594A true CN108088594A (en) | 2018-05-29 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060236A (en) * | 2018-10-17 | 2020-04-24 | 北京自动化控制设备研究所 | Silicon piezoresistive pressure sensor packaging assembly structure |
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| DE3309524A1 (en) * | 1983-03-17 | 1984-09-20 | Fichtel & Sachs Ag, 8720 Schweinfurt | Force transducer for a measuring machine |
| CN2177937Y (en) * | 1993-10-26 | 1994-09-21 | 范春起 | Composite sensor for measuring force |
| CN2783297Y (en) * | 2005-03-24 | 2006-05-24 | 中国矿业大学 | Tension tester for belt conveyer |
| CN102564557A (en) * | 2011-12-31 | 2012-07-11 | 李雪尔 | Build-up force standard machine with wide range, |
| CN103017943A (en) * | 2012-12-10 | 2013-04-03 | 大连博控科技股份有限公司 | Double-range pressure sensing mechanism |
| CN203587262U (en) * | 2013-10-26 | 2014-05-07 | 内蒙古工业大学 | Pressure sensor with pretightening force |
| JP2015224957A (en) * | 2014-05-28 | 2015-12-14 | エスペック株式会社 | Load measurement device |
| CN204881966U (en) * | 2015-06-19 | 2015-12-16 | 内蒙古工业大学 | Adjustable combination formula pressure sensor of pretightning force |
| CN204964109U (en) * | 2015-05-18 | 2016-01-13 | 昆山市创新科技检测仪器有限公司 | Electronic jar and pneumatic cylinder combination loading stack formula force standard machine |
| CN205015108U (en) * | 2015-08-25 | 2016-02-03 | 吉林大学 | A range / resolution ratio auto -change over device for big or small range series connection pressure sensor |
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2017
- 2017-11-10 CN CN201711100836.9A patent/CN108088594A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3309524A1 (en) * | 1983-03-17 | 1984-09-20 | Fichtel & Sachs Ag, 8720 Schweinfurt | Force transducer for a measuring machine |
| CN2177937Y (en) * | 1993-10-26 | 1994-09-21 | 范春起 | Composite sensor for measuring force |
| CN2783297Y (en) * | 2005-03-24 | 2006-05-24 | 中国矿业大学 | Tension tester for belt conveyer |
| CN102564557A (en) * | 2011-12-31 | 2012-07-11 | 李雪尔 | Build-up force standard machine with wide range, |
| CN103017943A (en) * | 2012-12-10 | 2013-04-03 | 大连博控科技股份有限公司 | Double-range pressure sensing mechanism |
| CN203587262U (en) * | 2013-10-26 | 2014-05-07 | 内蒙古工业大学 | Pressure sensor with pretightening force |
| JP2015224957A (en) * | 2014-05-28 | 2015-12-14 | エスペック株式会社 | Load measurement device |
| CN204964109U (en) * | 2015-05-18 | 2016-01-13 | 昆山市创新科技检测仪器有限公司 | Electronic jar and pneumatic cylinder combination loading stack formula force standard machine |
| CN204881966U (en) * | 2015-06-19 | 2015-12-16 | 内蒙古工业大学 | Adjustable combination formula pressure sensor of pretightning force |
| CN205015108U (en) * | 2015-08-25 | 2016-02-03 | 吉林大学 | A range / resolution ratio auto -change over device for big or small range series connection pressure sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111060236A (en) * | 2018-10-17 | 2020-04-24 | 北京自动化控制设备研究所 | Silicon piezoresistive pressure sensor packaging assembly structure |
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Application publication date: 20180529 |