CN106768501B - The embedded device for measuring force of strain sensor - Google Patents
The embedded device for measuring force of strain sensor Download PDFInfo
- Publication number
- CN106768501B CN106768501B CN201710154570.XA CN201710154570A CN106768501B CN 106768501 B CN106768501 B CN 106768501B CN 201710154570 A CN201710154570 A CN 201710154570A CN 106768501 B CN106768501 B CN 106768501B
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- CN
- China
- Prior art keywords
- sensing element
- mounting hole
- strain sensor
- outer silk
- top plate
- 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.)
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Links
- 239000010453 quartz Substances 0.000 claims description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 5
- 239000004744 fabric Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 5
- 238000005259 measurement Methods 0.000 description 8
- 230000005611 electricity Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009510 drug design Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- G01L1/04—Measuring force or stress, in general by measuring elastic deformation of gauges, e.g. of springs
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
A kind of embedded device for measuring force of strain sensor of stress field of measuring technique, including top plate, column, bottom plate, outer silk fixed body, stress deformation body, strain sensor, the top of four columns links together with four corners of top plate respectively, the bottom of four columns links together with four corners of bottom plate respectively, two wiring grooves are arranged on the top top plate of column, threaded hole array is arranged in the both ends of wiring groove, sensing element mounting hole is arranged in the top of column, outer silk fixed body, stress deformation body, strain transducer forms core measuring part together and is mounted in sensor mounting hole.In the present invention, when top plate stress, column, stress deformation body, strain sensor can synchronize stress and deform, and sensing element experiences deformation quantity, the corresponding charge transport of its deflection to control unit, to calculate the stress size of top plate；This process, which needs to first pass through calibration in advance, to be obtained.
Description
Technical field
The present invention relates to a kind of device for measuring force, it is characterized in that a kind of strain sensor using synchronous deformation measurement is embedded
Device for measuring force.
Background technique
It is very universal for the measurement and control application of power in the various production activities of the mankind.For power measurement
There are many device type, and have following 2 kinds using most in the market by its transfer principle: strain transducer, it is by external force
After effect, the foil gauge for being pasted onto elastomer generates deformation therewith and causes resistance variations, and resistance variations make the wheatstone electricity of composition
Bridge disequilibrium exports the electricity electric signal of one with the variation of external force linear proportional；The advantages of this kind of load cell, is static special
Property good, linear, sensitivity and sluggish all preferable, resolution ratio changes with range and is changed, and range is bigger, and resolution ratio is lower；Disadvantage
Be dynamic characteristic response frequency it is relatively low, range is not adjustable, and causes the absolute precision of wide range lower, a sensor
Measurement range it is relatively narrow.Piezoelectric transducer: static characteristic is relatively poor, and side sensor is answered in the linear and sluggish comparison of same range
Want poor, advantage is: high rigidity, high dynamic characteristic and intrinsic frequency, it is small in size, while accomplishing that sensors of large measurement range passes through rear end electricity
The adjusting of lotus amplifier measures small power, and precision is kept not subtract, and the use range ability of power is widened significantly, the disadvantage is that: due to knot
Structure is relatively small, cannot be by excessive bending torque and shearing force；Cost is usually high.
Summary of the invention
The present invention in view of the above shortcomings of the prior art, provides a kind of embedded device for measuring force of strain sensor, can
To utilize stress change principle characteristic, it is easy and flexibly changes 4 column of sensing element fixing body；It is different size of to reach different measurements
Power；Since quartz element is very sensitive, very small strain can be experienced, be thus able to maintain all spies of quartz transducer
Point, precision as being also able to maintain the power that 300 tons of device for measuring force can measure 3 tons and linearly (is put by the charge of rear end
Big device is adjusted), the plate profile structure of device can solve the usual moment of flexure of piezoelectric transducer and the shearing lower defect of stress, simultaneously
It can also keep the stress of more convenient great (volume is big, and range ability is wide) component of measurement；Bigger advantage is: in range
Cost is less expensive under purposes equal conditions.
The present invention is achieved through technology, the present invention include top plate, wiring groove, threaded hole, column, bottom plate,
Sensing element mounting hole, outer silk fixed body, stress deformation body, strain sensor, harness, measuring part are placed on top plate,
The top of four columns links together with four corners of top plate respectively, the bottom of four columns respectively with four sides of bottom plate
Angle links together, and two wiring grooves are arranged on the top top plate of column, and two wiring grooves are arranged symmetrically, threaded hole battle array
Column is arranged in the both ends of wiring groove, and sensing element mounting hole is arranged in the top of column, and the top of sensing element mounting hole is
Wiring groove, outer silk fixed body, stress deformation body, strain transducer form core measuring part together and are mounted on sensing element peace
It fills in hole, outer silk fixed body, stress deformation body link together, and stress deformation body is located at the lower part of outer silk fixed body, strain quick
Sensing unit is arranged in the inside of stress deformation body, and the outside wall surface of outer silk fixed body has outer silk, the inner wall of sensing element mounting hole
Face has internal thread, and the internal thread of the outer silk and sensing element mounting hole of outer silk fixed body matches, and strain sensor passes through harness
It is connected with measure-controlling unit.
Further, in the present invention, strain sensor is quartz, and the cross section of top plate and bottom plate is rectangle, is stood
Column, sensing element mounting hole cross section be circle, the both ends of wiring groove and intermediate position are cylindrical hole, stress deformation body
Lower bands have hollow circular groove.
The beneficial effects of the present invention are: the present invention has rational design, structure is simple；Measurement accuracy is high, is quick on the draw；Dismounting side
Just, changeable；Leakproofness is preferable, is not easily susceptible to other signals and foreign substances interference.
Detailed description of the invention
Fig. 1 is the real schematic perspective view of the present invention；
Fig. 2 is top view of the invention；
Fig. 3 is the structural schematic diagram of A-A section in Fig. 2；
Fig. 4 is the structural schematic diagram of core measuring part in the present invention；
Label in attached drawing is respectively as follows: 1, top plate, 2, wiring groove, 3, threaded hole, 4, column, 5, bottom plate, 6, sensing element
Mounting hole, 7, outer silk fixed body, 8, stress deformation body, 9, strain sensor, 10, harness.
Specific embodiment
It elaborates with reference to the accompanying drawing to the embodiment of the present invention, before the present embodiment is with technical solution of the present invention
It mentions, the detailed implementation method and specific operation process are given, but protection scope of the present invention is not limited to following embodiments.
Embodiment
The embodiment of the present invention is as shown in Figures 1 to 4, and the present invention includes top plate 1, wiring groove 2, threaded hole 3, column 4, bottom
Plate 5, sensing element mounting hole 6, outer silk fixed body 7, stress deformation body 8, strain sensor 9, harness 10, measuring part are placed
On top plate 1, the top of four columns 4 links together with four corners of top plate 1 respectively, the bottom difference of four columns 4
It links together with four corners of bottom plate 5, two wiring grooves 2 are arranged on the top top plate 1 of column 4, two wirings
Slot 2 is arranged symmetrically, and 3 array of threaded hole is arranged in the both ends of wiring groove 2, and sensing element mounting hole 6 is arranged in the top of column 4
The top in portion, sensing element mounting hole 6 is wiring groove 2, and outer silk fixed body 7, stress deformation body 8, strain transducer 9 form together
Core measuring part is simultaneously mounted in sensing element mounting hole 6, and outer silk fixed body 7, stress deformation body 8 link together, stress
Deformable body 8 is located at the lower part of outer silk fixed body 7, and strain sensor 9 is arranged in the inside of stress deformation body 8, outer silk fixed body 7
Outside wall surface have outer silk, the inner wall of sensing element mounting hole 6 has internal thread, the outer silk and sensing element of outer silk fixed body 7
The internal thread of mounting hole 6 matches, and strain sensor 9 is connected by harness 10 with measure-controlling unit；Strain sensor 9
For quartz, top plate 1, bottom plate 5 cross section be rectangle, column 4, sensing element mounting hole 6 cross section be circle, wiring
The both ends of slot 2 and intermediate position are cylindrical hole, and the lower bands of stress deformation body 8 have hollow circular groove.
In the implementation of the present invention, it first corresponds to change sensing element 9 to be demarcated, linearly be analyzed, it
The corresponding relationship of deformation size and stress size is stored in measure-controlling unit.Then outer silk fixed body 7, stress deformation body
8, strain sensor 9 forms core measuring part and is arranged in sensing element mounting hole 6, and is made by tightening outer silk fixed body 7
The bottom of stress deformation body 8 and the bottom of sensing element mounting hole 6 are combined closely.When strong (or weight) is pressed in the top of top plate 1
When portion, column 4, stress deformation body 8, strain sensor 9 can be synchronized and be deformed, at this time by having nominal data
Calculate the stress size of top plate 1.
Claims (1)
1. a kind of embedded device for measuring force of strain sensor, including top plate (1), wiring groove (2), threaded hole (3) are measured portion
Part is placed on top plate (1), which is characterized in that further includes that column (4), bottom plate (5), sensing element mounting hole (6), outer silk are fixed
Body (7), stress deformation body (8), strain sensor (9), harness (10), the top of four columns (4) respectively with top plate (1)
Four corners link together, and the bottom of four columns (4) links together with four corners of bottom plate (5) respectively, two cloth
Wire casing (2) is arranged on the top top plate (1) of column (4), and two wiring grooves (2) are arranged symmetrically, threaded hole (3) array
The both ends of wiring groove (2) are arranged in, sensing element mounting hole (6) is arranged in the top of column (4), sensing element mounting hole (6)
Top be wiring groove (2), outer silk fixed body (7), stress deformation body (8), strain sensor (9) form together core measure
Component is simultaneously mounted in sensing element mounting hole (6), and outer silk fixed body (7), stress deformation body (8) link together, and stress becomes
Body (8) is located at the lower part of outer silk fixed body (7), and strain sensor (9) is arranged in the inside of stress deformation body (8), outer silk
The outside wall surface of fixed body (7) has an outer silk, and the inner wall of sensing element mounting hole (6) has an internal thread, outer silk fixed body (7) it is outer
The internal thread of silk and sensing element mounting hole (6) matches, and strain sensor (9) passes through harness (10) and measure-controlling unit phase
Connection；Strain sensor (9) be quartz, top plate (1), bottom plate (5) cross section be rectangle, column (4), sensing element
The cross section of mounting hole (6) is circle, and the both ends of wiring groove (2) and intermediate position are cylindrical hole, under stress deformation body (8)
Portion has hollow circular groove；Make bottom and the sensing element mounting hole (6) of stress deformation body (8) by tightening outer silk fixed body (7)
Bottom combine closely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710154570.XA CN106768501B (en) | 2017-03-15 | 2017-03-15 | The embedded device for measuring force of strain sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710154570.XA CN106768501B (en) | 2017-03-15 | 2017-03-15 | The embedded device for measuring force of strain sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106768501A CN106768501A (en) | 2017-05-31 |
| CN106768501B true CN106768501B (en) | 2019-06-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710154570.XA Expired - Fee Related CN106768501B (en) | 2017-03-15 | 2017-03-15 | The embedded device for measuring force of strain sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106768501B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288334A (en) * | 2011-07-28 | 2011-12-21 | 济南大学 | Parallel piezoelectric six-dimensional large force sensor |
| CN103196594A (en) * | 2013-04-10 | 2013-07-10 | 济南大学 | Spoke type parallel piezoelectricity six-dimensional force sensor and measuring method |
| CN104502004A (en) * | 2014-12-31 | 2015-04-08 | 太原重工股份有限公司 | Force sensor and force measuring method |
| CN105092116A (en) * | 2015-08-18 | 2015-11-25 | 吉林大学 | Road load distribution multipoint cascading piezoelectric detection network |
| CN204988569U (en) * | 2015-10-09 | 2016-01-20 | 辽宁工业大学 | Survey based on piezoelectric force transducer and draw pressure device |
| CN105973455A (en) * | 2016-06-27 | 2016-09-28 | 北京空间飞行器总体设计部 | Combined piezoelectric strain vibration measurement device |
-
2017
- 2017-03-15 CN CN201710154570.XA patent/CN106768501B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102288334A (en) * | 2011-07-28 | 2011-12-21 | 济南大学 | Parallel piezoelectric six-dimensional large force sensor |
| CN103196594A (en) * | 2013-04-10 | 2013-07-10 | 济南大学 | Spoke type parallel piezoelectricity six-dimensional force sensor and measuring method |
| CN104502004A (en) * | 2014-12-31 | 2015-04-08 | 太原重工股份有限公司 | Force sensor and force measuring method |
| CN105092116A (en) * | 2015-08-18 | 2015-11-25 | 吉林大学 | Road load distribution multipoint cascading piezoelectric detection network |
| CN204988569U (en) * | 2015-10-09 | 2016-01-20 | 辽宁工业大学 | Survey based on piezoelectric force transducer and draw pressure device |
| CN105973455A (en) * | 2016-06-27 | 2016-09-28 | 北京空间飞行器总体设计部 | Combined piezoelectric strain vibration measurement device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106768501A (en) | 2017-05-31 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20190618 |