CN201229284Y

CN201229284Y - Novel density measurement device

Info

Publication number: CN201229284Y
Application number: CNU2008200601484U
Authority: CN
Inventors: 吴群
Original assignee: Shanghai Sunny Hengping Scientific Instrument Co Ltd
Current assignee: Shanghai Sunny Hengping Scientific Instrument Co Ltd
Priority date: 2008-06-24
Filing date: 2008-06-24
Publication date: 2009-04-29
Anticipated expiration: 2018-06-24

Abstract

The utility model discloses a novel density measuring device, which comprises an electronic balance and a liquid containing container, wherein one end portion of a C-shaped frame is vertically connected with a scale pan core of the electronic balance, the upside surface of the other end portion of the C-shaped frame is provided with an A scale pan, a B scale pan is suspended on the underside surface, a working platform is placed on the center of a base of a weighing cavity of the electronic balance, the liquid containing container is placed on the working platform, and B scale pan is suspended on the liquid containing container. The density measuring device which is designed through the technical scheme of the utility model has the advantages of simple structure, convenient assembly and simple operation, and one set of devices can realize solid density and liquid density measurement simultaneously.

Description

A kind of novel density measuring equipment

Technical field

The utility model relates to a kind of measurement mechanism, is specially a kind of high-accuracy density measuring equipment.

Background technology

Density measure relates to fields such as oil, chemical industry, metallurgy, building materials, light industry, uses very extensive.It is related to the management of control, detection and the production run of semi-manufacture and product quantity and quality.General measuring method is volume/mass computing method or glass density meter method.Mostly the former generally is the method for the solid measurement, measures the quality of solid on balance, then solid is immersed in the water, measurement arranges the volume of water, thereby calculates, but the limitation of this metering system is bigger, can only be applicable to the solid measurement, and inaccurate.The latter also can only be applicable to the measurement of liquid object, and process more complicated, sampling time are long, reading error is bigger.

The utility model content

Goal of the invention of the present utility model is for a kind of novel density measuring equipment is provided, but the combined high precision electronic balance is realized solid and the density of liquid substance and the device of cubing.

The purpose of this utility model can be achieved through the following technical solutions.

A kind of novel density measuring equipment comprises electronic balance and liquid container, vertically is connected on an end of a C type frame and the scale pan core of described electronic balance; The other end upper side of C type frame is provided with the A scale pan, and downside is hung with the B scale pan; One worktable is placed in the base central authorities in electronic balance weighing chamber, and a liquid container is positioned on the worktable, and the B scale pan hangs on the liquid container top.

Described C type frame can rotate around scale pan core.

The scale pan core of described worktable, C type frame and electronic balance is concentric.

Described worktable is a circumference trisection worktable, and the worktable inboard is provided with angle, can make conveniently that the scale pan core that guarantees worktable, C type frame and balance when installing is concentric.

Described liquid container is a glass container.

The measuring principle of this device is based on Newton second law and Archimedes' principle.According to Newton's law: the quality that the weight of material equals material multiply by acceleration of gravity (G=mg).And high-precision electronic balance just in time can carry out the precision measurement of substance weight, can be obtained the quality of material again by the formula of front.According to Archimedes' principle: be immersed in the size of making a concerted effort that object in the inactive liquid is subjected to liquid effects, equal the weight of the liquid that object arranges, this makes a concerted effort to be called buoyancy, F _Floating=ρ _LiquidVg.Use device and electronic balance are measured the buoyancy that measured object is subjected in normal fluid.The density of standard substance is known, is easy to also can draw the volume of measured object according to the buoyancy formula.The quality of object and volume obtain the back according to density formula ρ=m/v, utilize the automatic computing of microprocessor of electronic balance directly to obtain the density of measured object.

By the density measuring equipment that technical solutions of the utility model design, have advantage simple and reasonable, easy to assembly and simple to operate, a covering device can be realized the measurement of density of solid and fluid density simultaneously.

Description of drawings

Fig. 1 is a structural representation of the present utility model;

Among the figure: 1, electronic balance 2, worktable 3, C type frame

4, the A scale pan 5, the B scale pan 6, liquid container

Embodiment

Further set forth design feature of the present utility model below in conjunction with specific embodiments and the drawings.

A kind of novel density measuring equipment as shown in Figure 1 comprises electronic balance 1 and liquid container 6, vertically is connected on an end of C type frame 3 and the scale pan core of described electronic balance 1; The other end upper side of C type frame 3 is provided with the A scale pan 4, and downside is hung with the B scale pan 5; Worktable 2 is placed in the base central authorities in electronic balance 1 weighing chamber; Liquid container 6 is positioned on the worktable 2, and the B scale pan 5 hangs on liquid container 6 tops.

The installation steps of said apparatus are:

1) C type frame 3 is installed to the scale pan core of electronic balance 1; 2) worktable 2 is placed on the base of electronic balance 1; 3) in liquid container 6, add an amount of titer or test solution, then liquid container 6 is placed on the worktable 2; 4) the A scale pan 4 and the B scale pan 5 are put on the C type frame 3.

Embodiment:

Rock sugar is dissolved in water, but is insoluble to gasoline, alcohol, therefore when measuring the density of rock sugar or volume, just can choice criteria medium gasoline or alcohol measure, recording data does not need the manual conversion yet, can directly read volume or density value.

Its measuring process is:

1) by installation method density measuring equipment is installed, selecting gasoline or alcohol is current standard media, then gasoline or alcohol is injected glass cylinder; 2) rock sugar is placed on the A scale pan, records Solid-1 and (show reading: 10.817), press " affirmation " (i.e. " zero setting " key on day surface plate);

3) rock sugar is put into (rock sugar is immersed in gasoline or the alcohol fully) on the B scale pan, records Solid-2 and (show reading :-5.080), press " affirmation ";

4) after the inner computing fast of balance, show Solid-3 (show reading: 1.491), i.e. the density of rock sugar.

Claims

1, a kind of novel density measuring equipment comprises electronic balance (1) and liquid container (6), it is characterized in that: vertically be connected on the scale pan core of an end of C type frame (3) and described electronic balance (1); The other end upper side of C type frame (3) is provided with the A scale pan (4), and downside is hung with the B scale pan (5); One worktable (2) is placed in the base central authorities in electronic balance (1) weighing chamber; Liquid container (6) is positioned on the worktable (2), and the B scale pan (5) hangs on liquid container (6) top.

2, a kind of novel density measuring equipment according to claim 1 is characterized in that: the scale pan core of described worktable (2), C type frame (3) and electronic balance (1) is concentric.

3, a kind of novel density measuring equipment according to claim 1, it is characterized in that: described worktable (2) is a circumference trisection worktable (2), and worktable (2) inboard is provided with angle.

4, a kind of novel density measuring equipment according to claim 1 is characterized in that: described liquid container (6) is a glass container.