CN108507904A - A kind of solid density measuring platform based on spring scale - Google Patents

A kind of solid density measuring platform based on spring scale Download PDF

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Publication number
CN108507904A
CN108507904A CN201710127235.0A CN201710127235A CN108507904A CN 108507904 A CN108507904 A CN 108507904A CN 201710127235 A CN201710127235 A CN 201710127235A CN 108507904 A CN108507904 A CN 108507904A
Authority
CN
China
Prior art keywords
solid
spring scale
fixing device
density
liquid container
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.)
Pending
Application number
CN201710127235.0A
Other languages
Chinese (zh)
Inventor
傅隆生
冯亚利
谢洪起
彭俊
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Northwest A&F University
Original Assignee
Northwest A&F University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Northwest A&F University filed Critical Northwest A&F University
Priority to CN201710127235.0A priority Critical patent/CN108507904A/en
Publication of CN108507904A publication Critical patent/CN108507904A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N9/00Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity
    • G01N9/08Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity by measuring buoyant force of solid materials by weighing both in air and in a liquid

Abstract

The close measuring table of solid based on spring scale, the density of solid can be accurately measured with Archimedes buoyancy principle.Platform is made of pedestal, liquid container, solid fixing device, spring scale, spring scale fixing device, cradling piece.Liquid container is mounted on the underface of spring scale, and it can be moved up and down along holder is dry, solid fixing device is that the sphere that can be opened and closed is used for holding tested solid, spring scale and the flexible connection of spring scale fixing device, so that with the spring scale for changing different ranges, fixing device can be moved up and down along cradling piece.Measurement method is simple, the first step, and first tested solid is put into solid fixing device, measures the aerial mass M of solid1, tested solid is put into equipped with known density (ρ by second step2) liquid liquid container in, measure the mass M of solid in a liquid2, then density of solid obtained by Archimedes principle.

Description

A kind of solid density measuring platform based on spring scale
Technical field
This patent is related to solid density measuring field, close more particularly to a kind of irregular shape solid based on spring scale The measuring table of degree.
Background technology
Currently, existing solid density measuring method is essentially divided into two kinds, one is direct computing methods, for regular shape Solid can obtain volume according to size, then then its quality of scale obtains density of solid by density calculation formula, for not The solid of regular shape cannot obtain volume according to size, and volume can only be measured by drainage so as to cause cubing error Larger, final density of solid error is very big;Another kind is to measure density, this density of solid based on Archimedes buoyancy principle Measurement method is divided into two steps, and the first step measures the mass M for being tested solid in air1;Second step, then tested solid is put into Known density ρ2Liquid in measure be tested solid mass M2, then density of solid is calculated by formula, the method uses electricity More complicated when sub- balance measurement solid masses, efficiency is low.
Invention content
For solid density measuring, this patent proposes a kind of close measuring table of the solid based on spring scale.
Realize the measuring table of above-mentioned technical proposal, by pedestal 1, liquid container 2, solid fixing device 3, spring scale 4, bullet Spring scale fixing device 5, cradling piece 6 form.It is characterized in that:Liquid container 2 is mounted on the underface of spring scale 4, and can be along Holder dry 6 moves up and down, and solid fixing device 3 is that the sphere that can be opened and closed is used for holding tested solid, spring scale 4 and spring scale Fixing device 5 is flexibly connected, so that with the spring scale for changing different ranges, fixing device 5 can be moved up and down along cradling piece 6.
The advantages of this patent:Measuring table is simple in structure, and measuring device can be processed voluntarily, and measurement method is easy.
Description of the drawings
This patent is further illustrated with embodiment below in conjunction with the accompanying drawings.
Fig. 1 measuring table structure charts;
Wherein, 1. pedestal, 2. liquid containers, 3. solid fixing devices, 4. spring scales, 5. spring scale fixing devices, 6. Hack lever.
Specific implementation mode
Measuring table can accurately measure the density of solid with Archimedes buoyancy principle.When measuring density, the Tested solid is first put into solid fixing device 3 by one step, measures the aerial mass M of solid1, second step, by liquid Known density (ρ is packed into container 22) liquid, then liquid container 2 is moved upwardly so that solid is totally immersed into liquid, at this time The mass M of solid in a liquid is measured again2, finally by calculation formula ρ=ρ2·M1/(M1-M2) density of solid is calculated, usually Known liquid is pure water or alcohol.

Claims (1)

1. kind of the solid density measuring platform based on spring scale, by pedestal 1, liquid container 2, solid fixing device 3, spring scale 4, Spring scale fixing device 5, cradling piece 6 form.It is characterized in that:Liquid container 2 is mounted on the underface of spring scale 4, and can edge It holder dry 6 to move up and down, solid fixing device 3 is that the sphere that can be opened and closed is used for holding tested solid, spring scale 4 and spring Scale fixing device 5 is flexibly connected, so that with the spring scale for changing different ranges, fixing device 5 can move down on cradling piece 6 It is dynamic.
CN201710127235.0A 2017-02-27 2017-02-27 A kind of solid density measuring platform based on spring scale Pending CN108507904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710127235.0A CN108507904A (en) 2017-02-27 2017-02-27 A kind of solid density measuring platform based on spring scale

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710127235.0A CN108507904A (en) 2017-02-27 2017-02-27 A kind of solid density measuring platform based on spring scale

Publications (1)

Publication Number Publication Date
CN108507904A true CN108507904A (en) 2018-09-07

Family

ID=63374204

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710127235.0A Pending CN108507904A (en) 2017-02-27 2017-02-27 A kind of solid density measuring platform based on spring scale

Country Status (1)

Country Link
CN (1) CN108507904A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110608967A (en) * 2019-09-20 2019-12-24 黔南民族师范学院 Method for measuring ceramic expansion and contraction rate

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110608967A (en) * 2019-09-20 2019-12-24 黔南民族师范学院 Method for measuring ceramic expansion and contraction rate

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Legal Events

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PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20180907

WD01 Invention patent application deemed withdrawn after publication