CN110501258A - A kind of solid and fluid density general measuring instrument and density measuring method - Google Patents
A kind of solid and fluid density general measuring instrument and density measuring method Download PDFInfo
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- CN110501258A CN110501258A CN201910926828.2A CN201910926828A CN110501258A CN 110501258 A CN110501258 A CN 110501258A CN 201910926828 A CN201910926828 A CN 201910926828A CN 110501258 A CN110501258 A CN 110501258A
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- 239000007787 solid Substances 0.000 title claims abstract description 64
- 239000012530 fluid Substances 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 69
- 238000001514 detection method Methods 0.000 claims abstract description 27
- 239000000523 sample Substances 0.000 claims abstract description 22
- 230000033001 locomotion Effects 0.000 claims abstract description 12
- 238000009434 installation Methods 0.000 claims abstract description 8
- 238000002834 transmittance Methods 0.000 claims abstract description 8
- 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 6
- 239000000126 substance Substances 0.000 claims abstract description 4
- 238000004891 communication Methods 0.000 claims description 10
- 230000000694 effects Effects 0.000 claims description 9
- 238000000691 measurement method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 230000007423 decrease Effects 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000725 suspension Substances 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 241001269238 Data Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/59—Transmissivity
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/06—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a liquid
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
- G01N9/04—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of fluids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N9/00—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
- G01N9/02—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume
- G01N2009/022—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of solids
- G01N2009/026—Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring weight of a known volume of solids the volume being determined by amount of fluid displaced
Abstract
The invention discloses a kind of solid and fluid density general measuring instrument and density measuring methods, density general measuring instrument includes the detection structure being set on the base and measuring cup, the bascule that installation settings there are Vertical movements is gone back on the pedestal, the bascule drives to form vertical reciprocating motion by stepper motor, installation settings has slide arm on the bascule, is used to hang solid detectable substance and probe on the slide arm.Density measuring method includes the adjustment of instrument and the Density Detection of solid and liquid.The present invention can quickly detect the density of liquid, and observation is simple, while can also detect the light transmittance and conductivity of liquid to be detected；And it is easy for the Density Detection of solid, and very, can use arbitrary liquid cooperation control solid gradually submerges in liquid with quick detection density, and same structure can flexibly detect solid and fluid density, easy to use and flexible.
Description
Technical field
The present invention relates to Density Detection technical field, specifically a kind of solid and fluid density general measuring instrument and density are surveyed
Amount method.
Background technique
Electronic scale and a container and the density formula for utilizing ρ=m/v, can calculate the density of object.Density is big
Object density detection in 1 is very simple, and water filling, which can cooperate, in a reservoir detects.
Density Detection principle in the prior art is the same, but a bit relative complex when manual operation, is not easy to
It is rapidly performed by the Density Detection of liquid and solid.
Summary of the invention
The purpose of the present invention is to provide a kind of solids and fluid density general measuring instrument, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the invention provides the following technical scheme:
A kind of solid and fluid density general measuring instrument, including the detection structure being set on the base and measuring cup, the bottom
Also installation settings has the bascules of Vertical movements on seat, the bascule driven by stepper motor to be formed it is vertical reciprocal
It moves, installation settings has slide arm on the bascule, is used to hang solid detectable substance and probe on the slide arm.
Further, the pedestal includes bottom plate and the bracket for being fixed on bottom plate upper end side, bottom plate lower end two
Side is connected with adjusting heelpiece by being threadedly engaged, and also inlays on the bottom plate and is provided with level meter；The bracket side connects
It connects and is provided with bascule and the stepper motor for driving bascule.
Further, the bottom plate upper end, which is fixedly connected, is provided with detection structure, and the detection structure includes that fixation is set
The electronic scale on bottom plate and the light-detecting structure positioned at electronic scale two sides are set, the detection structure further includes being located on slide arm
Probe, with control structure electrical communication, the electronic scale upper end is horizontal positioned for the electronic scale, light-detecting structure and probe
There is measuring cup, there is graduation mark on the measuring cup.
Further, the control structure includes single-chip microcontroller and liquid crystal display, and the single-chip microcontroller passes through drive module and step
Into motor electrical communication, the single-chip microcontroller is by constant pressure electric bridge and probe electrical communication, and the single-chip microcontroller is also respectively and electronic scale
And light-detecting structure electrical communication, the electronic scale include pressure sensor and A/D module, the light-detecting structure includes swashing
Optical transmitting set and photosensitive reception circuit.
Further, the bascule includes being fixed on the sliding slot of bracket side and being slidably connected cooperation on the chute
Sliding block, the sliding slot end, which is fixedly connected, is provided with limit backing plate, and rotation connection is provided with drive rod on the limit backing plate,
The drive rod is threaded rod, the drive rod by being threadedly engaged activity through sliding block, and one end far from limit backing plate and
The output end of stepper motor connects transmission；Sliding block side horizontal connection is fixed with slide arm.
A kind of measurement method of density, based on above-mentioned solid and fluid density general measuring instrument, comprising the following steps:
1) by detecting whether bottom plate is horizontal by level meter, and the activity adjustment by adjusting heelpiece realizes level；
2) measuring cup is placed on electronic scale, and to middle investment liquid to be detected, records the liquid scale of measuring cup, as liquid
Body volume；Record the weight difference of liquid investment front and back, as liquid weight；
3) start light-detecting structure, pass through laser emitter and the photosensitive detection for receiving circuit realization to liquid light transmittance；
4) starting stepper motor rotates band movable slider vertical sliding motion on the chute, so that slide arm is driven to move down, probe decline
And when contacting with liquid in measuring cup, the conductivity of liquid is detected by probe；
5) according to the weight and volume data of liquid, the density of liquid is calculated.
Further, the solid of density to be detected is suspended below slide arm, solid progresses into liquid, do not have completely
The volume for entering to know according to the scale of measuring cup after liquid solid continues to move down slide arm and is placed on solid is fully relaxed
Bottom in measuring cup, the weight data fed back according to electronic scale calculate the density of solid according to density formula.
Compared with prior art, the beneficial effects of the present invention are: the density of liquid can quickly be detected, according to measuring cup
Intuitive volume markings cooperate electronic scale sense weight, and observation is simple, while can also detect the light transmittance and electricity of liquid to be detected
Conductance；And it is easy for the Density Detection of solid, and very, control driving stepper motor rotation band movable slider hangs down on the chute
Straight sliding first detects weight, the volume markings of liquid in measuring cup by the fixed solid to be detected of suspension on slide arm, then by
Gradually slide arm is moved down, progresses into solid in liquid, can know solid according to the scale of measuring cup after submerging liquid completely
Volume, continue to move down slide arm and by solid it is fully relaxed be placed on bottom in measuring cup, the weight fed back according to electronic scale
Data can calculate the density of solid according to density formula, easy to detect quick；Oneself of data may be implemented by control structure
It is dynamic to calculate, to intuitively quickly can directly feed back density data as needed, improve detection efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of a kind of solid and fluid density general measuring instrument.
Fig. 2 is a kind of solid and fluid density general measuring instrument for structural schematic diagram when detecting density of solid.
Fig. 3 is a kind of solid and fluid density general measuring instrument for detecting circuit control schematic diagram when fluid density.
Fig. 4 is a kind of solid and fluid density general measuring instrument for detecting circuit control schematic diagram when density of solid.
In figure: 1- bottom plate, 2- bracket, 3- sliding slot, 4- sliding block, 5- limit backing plate, 6- drive rod, 7- stepper motor, 8- are sliding
Arm, 9- level meter, 10- electronic scale, 11- measuring cup, 12- light-detecting structure, 13- probe.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
Please refer to Fig. 1 and 3, in the embodiment of the present invention, a kind of solid and fluid density general measuring instrument, including be arranged the bottom of at
Detection structure and measuring cup 11 on seat, the also installation settings bascule that has Vertical movements on the pedestal, the bascule
Vertical reciprocating motion is formed by the driving of stepper motor 7, installation settings has a slide arm 8 on the bascule, on the slide arm 8
For hanging solid detectable substance and probe 13.
The pedestal includes bottom plate 1 and the bracket 2 for being fixed on 1 upper end side of bottom plate, and the 1 lower end two sides of bottom plate pass through
It is threadedly engaged and is connected with adjusting heelpiece, also inlayed on the bottom plate 1 and be provided with level meter 9, by level meter 9 convenient for detection
Whether bottom plate 1 is horizontal, and the activity adjustment by adjusting heelpiece realizes level；2 side of bracket is connected with movable knot
Structure and stepper motor 7 for driving bascule.
1 upper end of bottom plate, which is fixedly connected, is provided with detection structure, and the detection structure includes to be fixed at bottom plate 1
On electronic scale 10 and light-detecting structure 12 positioned at 10 two sides of electronic scale, the detection structure further include being located on slide arm 8
Probe 13, the electronic scale 10, light-detecting structure 12 and probe 13 and control structure electrical communication, on the electronic scale 10
End is horizontal positioned measuring cup 11, has graduation mark on the measuring cup 11.
The control structure includes single-chip microcontroller and liquid crystal display, and the single-chip microcontroller passes through 7 electricity of drive module and stepper motor
Property connection, the single-chip microcontroller by 13 electrical communication of constant pressure electric bridge and probe, the single-chip microcontroller also respectively with electronic scale 10 and
12 electrical communication of light-detecting structure, the electronic scale 10 include pressure sensor and A/D module, and the light-detecting structure 12 includes
Laser emitter and photosensitive reception circuit can be placed in liquid to be detected in measuring cup 11, be passed through by said structure design
Electronic scale 10 incudes and measures weight, then can detecte the light transmittance of place's liquid, the measuring cup 11 by light-detecting structure 12
On graduation mark can intuitively embody liquid volume, to calculate the density of liquid by density formula.
A kind of measurement method of density, based on above-mentioned solid and fluid density general measuring instrument, comprising the following steps:
1) by detecting whether bottom plate 1 is horizontal by level meter 9, and the realization of the activity adjustment by adjusting heelpiece is horizontal；
2) measuring cup 11 is placed on electronic scale 10, and to liquid to be detected is put into 11, the liquid of record measuring cup 11 is carved
Degree, as liquid volume；Record the weight difference of liquid investment front and back, as liquid weight；
3) start light-detecting structure 12, pass through laser emitter and the photosensitive inspection for receiving circuit realization to liquid light transmittance
It surveys；
4) according to the weight and volume data of liquid, the density of liquid is calculated.
Embodiment 2
Please refer to Fig. 2 and 4, in the embodiment of the present invention, a kind of solid and fluid density general measuring instrument, in embodiment 1
On the basis of, the bascule includes being fixed on the sliding slot 3 of 2 side of bracket and sliding block 4 of the cooperation on sliding slot 3 that be slidably connected,
3 end of sliding slot, which is fixedly connected, is provided with limit backing plate 5, and rotation connection is provided with drive rod 6 on the limit backing plate 5,
The drive rod 6 is threaded rod, and the drive rod 6 runs through sliding block 4, and one far from limit backing plate 5 by being threadedly engaged activity
End connects transmission with the output end of stepper motor 7；The 4 side horizontal connection of sliding block is fixed with slide arm 8.Drive can be passed through in this way
Dynamic stepper motor 7 rotates the band vertical sliding motion on sliding slot 3 of movable slider 4, and the probe 13 and measuring cup 11 installed on slide arm 8 are opposite to be set
Set, when probe 13 by slide arm 8 be gradually reduced and and measuring cup 11 in liquid contact when, liquid can be detected by probe 13
Conductivity by the fixed solid to be detected of suspension on slide arm 8, first detect measuring cup and if it is the density detection of solid
The weight, volume markings of liquid in 11, then gradually move down slide arm 8, it progresses into solid in liquid, submerges liquid completely
The volume that can know solid according to the scale of measuring cup 11 afterwards continues to move down slide arm 8 and the amount of being placed on that solid is fully relaxed
Bottom in cup 11 can calculate the density of solid according to the weight data that electronic scale 10 is fed back according to density formula.
A kind of measurement method of density, based on above-mentioned solid and fluid density general measuring instrument, comprising the following steps:
1) by detecting whether bottom plate 1 is horizontal by level meter 9, and the realization of the activity adjustment by adjusting heelpiece is horizontal；
2) measuring cup 11 is placed on electronic scale 10, and to liquid to be detected is put into 11, the liquid of record measuring cup 11 is carved
Degree, as liquid volume；Record the weight difference of liquid investment front and back, as liquid weight；
3) start light-detecting structure 12, pass through laser emitter and the photosensitive inspection for receiving circuit realization to liquid light transmittance
It surveys；
4) starting stepper motor 7 rotation band movable slider 4 vertical sliding motion on sliding slot 3 so that slide arm 8 be driven to move down works as spy
Needle 13 by slide arm 8 be gradually reduced and and measuring cup 11 in liquid contact when, the conduction of liquid can be detected by probe 13
Rate；Solid progresses into liquid, and the volume of solid can be known according to the scale of measuring cup 11 by being submerged after liquid completely, continues
Move down slide arm 8 and by solid it is fully relaxed be placed on bottom in measuring cup 11, can according to the weight data that electronic scale 10 is fed back
To calculate the density of solid according to density formula；
5) according to the weight and volume data of liquid, the density of liquid is calculated.
The working principle of the invention is: the structure of the application can quickly detect the density of liquid, according to measuring cup 11
Intuitive volume markings cooperate 10 sense weight of electronic scale, and observation is simple, at the same can also detect liquid to be detected light transmittance and
Conductivity；And it is easy for the Density Detection of solid, and very, the control driving rotation band movable slider 4 of stepper motor 7 is in sliding slot
Vertical sliding motion on 3, by the fixed solid to be detected of suspension on slide arm 8, the weight, volume for first detecting liquid in measuring cup 11 are carved
Degree, then gradually moves down slide arm 8, progresses into solid in liquid, and being submerged after liquid completely can be according to the quarter of measuring cup 11
Degree knows the volume of solid, continue to move down slide arm 8 and by solid it is fully relaxed be placed on bottom in measuring cup 11, according to electronic scale
10 weight datas fed back can calculate the density of solid according to density formula, easy to detect quick.
The standardized element that the present invention uses can commercially, and shaped piece is according to specification and attached drawing note
Load can carry out customized, and the specific connection type of each part is all made of in the prior art mature bolt, rivet, welding etc.
Conventional means, mechanical, part and equipment are all made of in the prior art, conventional model, in addition circuit connection uses the prior art
Middle conventional connection type, this will not be detailed here.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of solid and fluid density general measuring instrument, special including the detection structure being set on the base and measuring cup (11)
Sign is, the bascule that installation settings has Vertical movements is gone back on the pedestal, and the bascule passes through stepper motor (7) and drives
Dynamic to form vertical reciprocating motion, there is slide arm (8) installation settings on the bascule, solid for hanging on the slide arm (8)
Body detectable substance and probe (13).
2. a kind of solid according to claim 1 and fluid density general measuring instrument, which is characterized in that the pedestal includes
Bottom plate (1) and the bracket (2) for being fixed on bottom plate (1) upper end side, the bottom plate (1) lower end two sides are by being threadedly engaged activity
It is connected with adjusting heelpiece, is also inlayed on the bottom plate (1) and is provided with level meter (9)；Bracket (2) side is connected with work
Dynamic structure and the stepper motor (7) for driving bascule.
3. a kind of solid according to claim 2 and fluid density general measuring instrument, which is characterized in that the bascule
Including being fixed on the sliding slot (3) of bracket (2) side and sliding block (4) of the cooperation on sliding slot (3) that be slidably connected, the sliding slot (3)
End, which is fixedly connected, is provided with limit backing plate (5), and rotation connection is provided with drive rod (6) on the limit backing plate (5), described
Drive rod (6) is threaded rod, and the drive rod (6) runs through sliding block (4) by being threadedly engaged activity, and far from limit backing plate (5)
One end connect transmission with the output end of stepper motor (7)；Sliding block (4) the side horizontal connection is fixed with slide arm (8).
4. a kind of solid according to claim 2 and fluid density general measuring instrument, which is characterized in that the bottom plate (1)
Upper end, which is fixedly connected, is provided with detection structure, and the detection structure includes the electronic scale (10) being fixed on bottom plate (1)
And it is located at the light-detecting structure (12) of electronic scale (10) two sides, the detection structure further includes the probe on slide arm (8)
(13), the electronic scale (10), light-detecting structure (12) and probe (13) and control structure electrical communication, the electronic scale
(10) upper end is horizontal positioned has measuring cup (11), has graduation mark on the measuring cup (11).
5. a kind of solid according to claim 1 and fluid density general measuring instrument, which is characterized in that the control structure
Including single-chip microcontroller and liquid crystal display, for the single-chip microcontroller by drive module and stepper motor (7) electrical communication, the single-chip microcontroller is logical
Constant pressure electric bridge and probe (13) electrical communication are crossed, the single-chip microcontroller is also electric with electronic scale (10) and light-detecting structure (12) respectively
Property connection, the electronic scale (10) includes pressure sensor and A/D module, and the light-detecting structure (12) includes laser emitter
With photosensitive reception circuit.
6. a kind of measurement method of density, based on the solid and fluid density composite measurement as described in Claims 1 to 5 is any
Instrument, comprising the following steps:
1) whether horizontal by detecting bottom plate (1) by level meter (9), and the activity adjustment by adjusting heelpiece realizes level；
2) measuring cup (11) is placed on electronic scale (10), and to middle investment liquid to be detected, the liquid for recording measuring cup (11) is carved
Degree, as liquid volume；Record the weight difference of liquid investment front and back, as liquid weight；
3) start light-detecting structure (12), pass through laser emitter and the photosensitive detection for receiving circuit realization to liquid light transmittance；
4) starting stepper motor (7) rotation band movable slider (4) vertical sliding motion on sliding slot (3), so that slide arm (8) is driven to move down,
When probe (13) decline is simultaneously and measuring cup (11) interior liquid contacts, the conductivity of liquid is detected by probe (13)；
5) according to the weight and volume data of liquid, the density of liquid is calculated.
7. a kind of measurement method of density according to claim 6, which is characterized in that hang the solid of density to be detected
Below slide arm, solid is progressed into liquid, and the body of solid can be known according to the scale of measuring cup by being submerged after liquid completely
Product, continue to move down slide arm and by solid it is fully relaxed be placed on bottom in measuring cup, the weight data fed back according to electronic scale,
The density of solid is calculated according to density formula.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910926828.2A CN110501258A (en) | 2019-09-27 | 2019-09-27 | A kind of solid and fluid density general measuring instrument and density measuring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910926828.2A CN110501258A (en) | 2019-09-27 | 2019-09-27 | A kind of solid and fluid density general measuring instrument and density measuring method |
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| CN201910926828.2A Pending CN110501258A (en) | 2019-09-27 | 2019-09-27 | A kind of solid and fluid density general measuring instrument and density measuring method |
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|---|---|---|---|---|
| CN110954439A (en) * | 2019-12-11 | 2020-04-03 | 乐山师范学院 | Multifunctional density measuring instrument for laboratory |
| CN111650091A (en) * | 2020-06-29 | 2020-09-11 | 薛红帅 | Rayleigh scale |
| CN111650091B (en) * | 2020-06-29 | 2023-01-17 | 薛红帅 | Rayleigh scale |
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