CN110160612A - A kind of loss of weight scale - Google Patents
A kind of loss of weight scale Download PDFInfo
- Publication number
- CN110160612A CN110160612A CN201910423673.0A CN201910423673A CN110160612A CN 110160612 A CN110160612 A CN 110160612A CN 201910423673 A CN201910423673 A CN 201910423673A CN 110160612 A CN110160612 A CN 110160612A
- Authority
- CN
- China
- Prior art keywords
- crossbeam
- box
- weight
- side arm
- loss
- 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.)
- Granted
Links
- 208000020442 loss of weight Diseases 0.000 title claims abstract description 14
- 239000011888 foil Substances 0.000 claims abstract description 24
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005452 bending Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 6
- 230000009897 systematic effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 229910001006 Constantan Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000004323 axial length Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G1/00—Weighing apparatus involving the use of a counterweight or other counterbalancing mass
- G01G1/18—Balances involving the use of a pivoted beam, i.e. beam balances
- G01G1/20—Beam balances having the pans carried below the beam, and for use with separate counterweights
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Motorcycle And Bicycle Frame (AREA)
- Testing Of Balance (AREA)
Abstract
A kind of loss of weight scale, including pedestal, control system is provided in pedestal, motor is installed on the pedestal, crossbeam is installed on the motor output shaft, the crossbeam left and right ends are symmetrical with respect to motor output shaft, the crossbeam left and right ends are formed by bending two side arms vertically downward, wherein a side arm bottom end is equipped with object box, and testee is placed in the object box, is equipped with compensation codes on the side arm above the object box；The bottom end of another side arm is equipped with Weight box, and counterweight is placed in the Weight box, is equipped with rider on the side arm above the Weight box；Foil gauge balanced bridge is installed, the foil gauge balanced bridge is connected by route with the control system at the crossbeam center.The present invention can strain crossbeam bend by comparing centrifugal force is generated in counterweight and object rotary course, measure mass of object；Using crossbeam, foil gauge bridge balance measurement quality, no moving parts eliminates systematic error existing for crossbeam machinery structural failure and both sides.
Description
Technical field
The present invention relates to mass of object field of measuring technique, in particular to a kind of loss of weight scale.
Background technique
Because gravitation is not present in space, general utility balance is not capable of measuring mass of object.Currently, the simplest measurement matter of space
The method straightforward procedure of amount is using Newton's second law, and mass of object is inversely proportional with acceleration, draws one with a fixed power
Then a object measures the acceleration of object, so that it may calculate the quality of object.But this method also has very big in fact
Limitation.Firstly, the measurement of acceleration will be very inaccurate if range is too short, error can be very big.If secondly object is too
Greatly, it is difficult to implement the power of a fixed size.In addition, movement is it needs to be determined that object of reference, the selection of object of reference also can be great
Influence the accuracy of measurement.
Summary of the invention
The present invention provides a kind of loss of weight scale, curved to crossbeam by comparing centrifugal force is generated in counterweight and object rotary course
Curved strain measures mass of object.
In order to achieve the above objectives, the technical solution adopted by the present invention are as follows:
A kind of loss of weight scale, including pedestal are provided with control system in pedestal, motor are equipped on the pedestal, described
Crossbeam, the output axial symmetry of the relatively described motor in crossbeam left and right ends, the crossbeam left side are installed on the output shaft of motor
Right both ends are formed by bending two side arms vertically downward, wherein a side arm bottom end is equipped with object box, place in the object box tested
Object is equipped with compensation codes on the side arm above the object box；The bottom end of another side arm is equipped with Weight box, the Weight box
Interior placement counterweight is equipped with rider on the side arm above the Weight box；
Foil gauge balanced bridge is installed, the foil gauge balanced bridge passes through route and the control at the crossbeam center
System processed is connected.
Further, the foil gauge balanced bridge includes the foil gauge of four identical characteristics, is respectively symmetrically pasted onto cross
Upper left surface, right upper, lower-left surface and the lower right surface of beam center two sides.
Further, described be equipped on the side arm of rider is carved with quality scale.
Preferably, the crossbeam and two side arms are same rectangular section metal plate.
Preferably, the Weight box and object box are deformable, and counterweight mass center and object in Weight box are made by adjusting shape
Testee height of center of mass in body box is identical and is symmetrical with crossbeam center.
Preferably, slip ring is installed, the inner ring of the slip ring has the output shaft to fix, institute on the output shaft of the motor
The outer ring and the motor housing for stating slip ring are fixed.
The invention has the advantages that: the present invention can be by comparing generation centrifugal force in counterweight and object rotary course to crossbeam
Bending strain measures mass of object；Using crossbeam strain measurement quality, no moving parts eliminates crossbeam machinery structural failure；It adopts
With foil gauge bridge balance measurement quality, systematic error existing for crossbeam both sides is eliminated.
Detailed description of the invention
Fig. 1 is loss of weight scale structural schematic diagram of the present invention；
Fig. 2 is strain gauge bridge schematic diagram；
In figure: 1 foil gauge balanced bridge, 2 crossbeams, 3 riders, 4 motors, 5 slip rings, 6 compensation codes, 7 object boxes, 8 Weight boxes,
9 counterweights, 10 control systems, 11 pedestals, 12 testees.
Specific embodiment
In order to better understand the above technical scheme, in conjunction with appended figures and specific embodiments to upper
Technical solution is stated to be described in detail.
In conjunction with attached drawing 1,2, a kind of loss of weight scale, including pedestal 11, it is preferable that the pedestal 11 is cast iron quality production,
Control system 10 is provided in the pedestal 11, it is preferable that the control system 10 has analog-to-digital conversion using single-chip microcontroller as core
Module, stepper motor drive module, display module, zeroing module and start stop switch, the control system 10 connect power supply.It is described
Motor 4 is installed, the motor 4 is vertically mounted on the pedestal 11, and the preferably described motor 4 is using 12V's on pedestal 11
42 serial stepper motors, model: 42BYGH34 torque 0.28N.M.The output shaft of the motor 4 is upward, it is preferable that the output
The axial length 25mm of axis, diameter of axle 5mm.Slip ring 5 is installed, it is preferable that the slip ring is 4 road slip rings, 4 tunnel on the output shaft
Slip ring internal diameter 5mm, outer diameter 22mm, length 15mm, the slip ring pass through the output shaft, and inner ring is fixed with output shaft, outside
Ring is fixed with 4 cover top portion of motor.
Crossbeam 2, relatively described 4 output shaft pair of motor in 2 left and right ends of crossbeam are installed on 4 output shaft of motor
Claim, 2 left and right ends of crossbeam are formed by bending two side arms vertically downward.Preferably, the crossbeam 2 is the rectangular section 10mm*3mm
Metal stainless steel plate, steel plate overall length 120mm, the two sides arm lengths that the crossbeam both ends are formed by bending vertically downward are 30mm.Its
In a side arm bottom end object box 7 is installed, testee 12 is placed in the object box 7, on the side arm of 7 top of object box
Compensation codes 6 are installed；The bottom end of another side arm is equipped with Weight box 8, places counterweight 9, the Weight box 8 in the Weight box 8
Rider 3 is installed on the side arm of top；Quality scale is carved on the side arm for being equipped with rider 3, it is preferable that the quality mark
The scale of ruler is positive 0.5 to minus 0.5 gram from bottom to top, and point 10 lattice, every compartment is every 1mm.Preferably, the object box 7 and counterweight
Box 8 is the production of 0.5mm thickness stainless steel, and front and back is unimpeded, and two sidewalls curve inwardly and have certain elasticity, leans on flexible bending
Testee 12 and counterweight 9 can be clamped in center by two sidewalls, and the testee 12 and 9 upper and lower position of counterweight can
It adjusts so that the mass center of the counterweight 9 is identical with the height of center of mass of testee 12 and be symmetrical with crossbeam center.
Foil gauge balanced bridge 1 is installed at 2 center of crossbeam, it is preferable that the foil gauge balanced bridge 1 is by four
1000 ohm of high-precision foil gauges of identical characteristic form, and foil gauge size of foundation base is 7mm*4mm, and strain wire material is constantan,
Foil gauge is respectively symmetrically pasted onto crossbeam center upper left surface, right upper, lower-left surface and lower right surface, foil gauge center away from
From crossbeam center 10mm.The foil gauge balanced bridge 1 is connected with the control system 10, and specific wiring diagram is as shown in Fig. 2.
Working principle: adjusting the zeroing circuit of the control system 10 first, so that 1 output voltage of balanced bridge is zero.
Start motor 4, rotate 4 output shaft of motor at the uniform velocity with 1 turn of speed per second, counterweight 9, rider 3 and testee 12 generate from
Mental and physical efforts form bending strain to 2 two sides of crossbeam, and control system 10 powers to foil gauge balanced bridge 1 and shows foil gauge balance electricity
1 voltage of bridge, when 1 voltage of foil gauge balanced bridge is to be not zero, 2 two sides of crossbeam form bending strain difference, stop motor 4 simultaneously
3 position of rider is adjusted, above step is repeated, when display 1 output voltage of foil gauge balanced bridge is zero, then 2 two sides of crossbeam are formed
Bending strain is identical, and the quality of testee 12 is equal to 9 mass of counterweight and rider 3 indicates quality sum.
It should be understood that the specific features and numberical range in the above embodiment of the present invention and embodiment are only the present invention
A kind of optimum embodiment, rather than the restriction to range claimed by technical scheme, the protection scope of the application are answered
It is subject to claims limited range, those skilled in the art should understand that, it can be to technology of the invention
Scheme is modified or replaced equivalently, and without departing from the spirit and scope of the technical solution of the present invention, should all be covered in this hair
In bright scope of the claims.
Claims (6)
1. a kind of loss of weight scale, it is characterised in that: including pedestal, control system is provided in pedestal, is equipped on the pedestal
Motor is equipped with crossbeam, the output axial symmetry of the relatively described motor in crossbeam left and right ends, institute on the output shaft of the motor
It states crossbeam left and right ends and is formed by bending two side arms vertically downward, wherein a side arm bottom end is equipped with object box, in the object box
Testee is placed, compensation codes are installed on the side arm above the object box；The bottom end of another side arm is equipped with Weight box, institute
It states and places counterweight in Weight box, rider is installed on the side arm above the Weight box；
Foil gauge balanced bridge is installed, the foil gauge balanced bridge is by route and the control at the crossbeam center
System is connected.
2. a kind of loss of weight scale according to claim 1, it is characterised in that: the foil gauge balanced bridge includes four phases
With the foil gauge of characteristic, it is respectively symmetrically pasted onto upper left surface, right upper, lower-left surface and the bottom right table of crossbeam center two sides
Face.
3. a kind of loss of weight scale according to claim 1, it is characterised in that: described be equipped on the side arm of rider is carved with matter
Measure scale.
4. a kind of loss of weight scale according to claim 1, it is characterised in that: the crossbeam and two side arms are cut for same rectangle
Face metal plate.
5. a kind of loss of weight scale according to claim 1, it is characterised in that: the Weight box and object box are deformable, lead to
Crossing adjustment shape keeps the counterweight mass center in Weight box identical with the testee height of center of mass in object box and is symmetrical in crossbeam
The heart.
6. a kind of loss of weight scale according to claim 1, it is characterised in that: be equipped with cunning on the output shaft of the motor
Ring, the inner ring of the slip ring have the output shaft to fix, and the outer ring of the slip ring is fixed with the motor housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423673.0A CN110160612B (en) | 2019-05-21 | 2019-05-21 | Weightless balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910423673.0A CN110160612B (en) | 2019-05-21 | 2019-05-21 | Weightless balance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110160612A true CN110160612A (en) | 2019-08-23 |
| CN110160612B CN110160612B (en) | 2024-09-17 |
Family
ID=67631786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910423673.0A Active CN110160612B (en) | 2019-05-21 | 2019-05-21 | Weightless balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110160612B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0545204A (en) * | 1991-08-16 | 1993-02-23 | Fujitsu Ltd | Mass measuring device |
| DE19645773A1 (en) * | 1996-11-07 | 1998-05-14 | Manfred Alexander Gregor | Ultramicro balance unit used as sensitive suspension scales |
| RU2148799C1 (en) * | 1998-03-06 | 2000-05-10 | Каратеев Павел Андрианович | Device determining quantity of mass under zero gravity ( versions ) |
| US20020189360A1 (en) * | 2000-11-22 | 2002-12-19 | Shuichi Kawasaki | Vibration absorbing system of micro gravity rotating apparatus |
| WO2008029648A1 (en) * | 2006-09-05 | 2008-03-13 | Ishida Co., Ltd. | Load cell unit, weight checker, electronic weighting instrument, and weighting instrument |
| CN103625655A (en) * | 2013-12-23 | 2014-03-12 | 中国航天空气动力技术研究院 | Strain balance temperature influence calibration system |
| CN106248179A (en) * | 2016-08-29 | 2016-12-21 | 上海交通大学 | Centrifugal quality meters and using method thereof |
| CN206362428U (en) * | 2016-11-17 | 2017-07-28 | 于小云 | Rotary balance |
| CN109489896A (en) * | 2018-12-03 | 2019-03-19 | 江西洪都航空工业集团有限责任公司 | The small horizontal pressure metering device of force value dynamometer |
| CN209841144U (en) * | 2019-05-21 | 2019-12-24 | 江汉大学 | Weightless balance |
-
2019
- 2019-05-21 CN CN201910423673.0A patent/CN110160612B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0545204A (en) * | 1991-08-16 | 1993-02-23 | Fujitsu Ltd | Mass measuring device |
| DE19645773A1 (en) * | 1996-11-07 | 1998-05-14 | Manfred Alexander Gregor | Ultramicro balance unit used as sensitive suspension scales |
| RU2148799C1 (en) * | 1998-03-06 | 2000-05-10 | Каратеев Павел Андрианович | Device determining quantity of mass under zero gravity ( versions ) |
| US20020189360A1 (en) * | 2000-11-22 | 2002-12-19 | Shuichi Kawasaki | Vibration absorbing system of micro gravity rotating apparatus |
| WO2008029648A1 (en) * | 2006-09-05 | 2008-03-13 | Ishida Co., Ltd. | Load cell unit, weight checker, electronic weighting instrument, and weighting instrument |
| CN103625655A (en) * | 2013-12-23 | 2014-03-12 | 中国航天空气动力技术研究院 | Strain balance temperature influence calibration system |
| CN106248179A (en) * | 2016-08-29 | 2016-12-21 | 上海交通大学 | Centrifugal quality meters and using method thereof |
| CN206362428U (en) * | 2016-11-17 | 2017-07-28 | 于小云 | Rotary balance |
| CN109489896A (en) * | 2018-12-03 | 2019-03-19 | 江西洪都航空工业集团有限责任公司 | The small horizontal pressure metering device of force value dynamometer |
| CN209841144U (en) * | 2019-05-21 | 2019-12-24 | 江汉大学 | Weightless balance |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110160612B (en) | 2024-09-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103278229B (en) | Helicopter weighing measurement device and helicopter center of gravity measurement method | |
| CN107393599B (en) | Integrate the quick deflection platform of two dimension and method of sensing unit and confinement element | |
| CN108801548B (en) | Vehicle mass center measuring tool and measuring method | |
| CN103528752A (en) | Force and moment lever and force and torque standard device | |
| CN106514720B (en) | Embedded torque sensor and sensing device for joint module | |
| CN102269634A (en) | Attached resistance strain transducer | |
| CN107290085B (en) | Micro torque calibration measuring device based on elastic hanging | |
| CN201045587Y (en) | Device for improving weighing precision of weightless balance | |
| CN203615997U (en) | Tray balance | |
| CN110160612A (en) | A kind of loss of weight scale | |
| CN201288635Y (en) | Counterweight apparatus for wind power generating fin | |
| CN109696262A (en) | A kind of ultrathin type strain force sensor | |
| CN209841144U (en) | Weightless balance | |
| CN202974560U (en) | Direct loading type force sensor dynamic calibration device | |
| CN201615808U (en) | Micro dynamometric device | |
| CN102980719B (en) | Direct loading type force sensor dynamic calibration device | |
| CN202938849U (en) | Testing instrument for synchronously testing polished rod load and reducer casing torque of pumping unit | |
| CN202166394U (en) | Jig for measuring flexibility of shafts | |
| CN206848298U (en) | Strain gauge acceleration transducer | |
| CN216207181U (en) | Coriolis scale torque sensor device | |
| CN206920051U (en) | Pressure sensor device | |
| CN206410763U (en) | A kind of online belted electronic balance structure without cantilever | |
| CN206311254U (en) | Magnetic suspension bearing dynamic torque sensor | |
| CN215811152U (en) | Combined weighing device for pipes | |
| CN204903051U (en) | Heavy load singly divides level sensor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |