CN202533344U - Liquid density measuring device - Google Patents
Liquid density measuring device Download PDFInfo
- Publication number
- CN202533344U CN202533344U CN2012201508879U CN201220150887U CN202533344U CN 202533344 U CN202533344 U CN 202533344U CN 2012201508879 U CN2012201508879 U CN 2012201508879U CN 201220150887 U CN201220150887 U CN 201220150887U CN 202533344 U CN202533344 U CN 202533344U
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- CN
- China
- Prior art keywords
- fixed
- laser ranging
- liquor box
- box
- liquid
- 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.)
- Expired - Fee Related
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- Level Indicators Using A Float (AREA)
Abstract
The utility model discloses a liquid density measuring device. A solution box is fixed on a lower base, the bottom of the solution box is connected with a drainage pump through a pipeline and a valve, and the middle of the solution box is connected with a valve and a fixed displacement pump through a pipeline. A floater is arranged in the solution box and extends to the outside of the solution box through a sliding hole formed in the upper plane of the solution box, and the upper end of the floater is connected with a reflection disk. The rear side of the solution box is connected with a support plate, of which the upper end is fixedly provided with a protection box, a microprocessor is fixed in the protection box and is electrically connected with a digital displayer fixed in the front of the protection box, the upper end of the support plate is fixedly provided with a laser ranging head through a support, and the laser ranging head is electrically connected with the microprocessor in the protection box. The laser ranging head is used to measure a distance between the laser ranging head and an upper end face of the floater, when liquid in a container is different in density, the floater is immersed in the liquid by different lengths, and the density of the liquid to be measured can be obtained according to the two-force balancing principle and the buoyancy principle. The measuring device is simple and convenient in adopted method and exquisite and visual in design, and has an application value in teaching and actual measuring.
Description
Technical field
The utility model relates to a kind of determinator, relates in particular to a kind of fluid density determinator, belongs to physics teaching teaching aid technical field.
Background technology
In physics teaching, the measurement of relevant fluid density is the important content of courses.Can measure through weighing method, hydrometer method etc.; But can not accurately measure owing in measurement, receive the restriction of accuracy of instrument; A kind of device that utilizes buoyancy to measure fluid density is provided here; The physics principle that both can learn wherein to relate to has remedied additive method again and has measured loaded down with trivial details, inaccurate weak point.
Summary of the invention
In order to address the above problem, the purpose of the utility model is to provide a kind of fluid density determinator.(density requirements of float material generally can be selected 0.25g/cm for use less than fluid to be measured density with certain known density
3) material processes the elongated float of certain-length; Record the distance with the float upper surface through the laser ranging head; Fluid density is not simultaneously in liquor box; The length that float immerses in the liquid is different, shows on device for digit-displaying through microprocessor, can obtain density of liquid according to balance between two forces and law of buoyancy.
The utility model solves the technical scheme that its technical matters adopted: the fluid density determinator, it is made up of following, support plate, liquor box, float, reflecting disc, laser ranging head, protective housing, microprocessor, device for digit-displaying, valve, fixed displacement pump, positive displacement pump.Liquor box is fixed on down on the seat, and the liquor box bottom is connected with positive displacement pump through pipeline, valve, and the liquor box middle part is connected with valve, fixed displacement pump through pipeline.Be built-in with float at liquor box, the sliding eye that float is provided with through plane on the liquor box stretches out outside the liquor box, and its upper end is connected with reflecting disc.Be connected with support plate at the liquor box rear side; The support plate upper end is fixed with protective housing; Microprocessor is fixed in the protective housing and with the device for digit-displaying that is fixed on the protective housing front and is electrically connected; Also be fixed with the laser ranging head through support in the support plate upper end, the laser ranging head microprocessor interior with being fixed on protective housing is electrically connected.
The beneficial effect of the utility model is: record the distance with the float upper surface through the laser ranging head; When liquid in container density not simultaneously; The length that float immerses in the liquid is different; Show on device for digit-displaying through microprocessor, can obtain the density of testing liquid according to balance between two forces and law of buoyancy.This determinator employing method is easy, deft design is directly perceived, and the student is of signal value, and in teaching and actual measurement, using value is arranged.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the structural representation of the utility model fluid density determinator.
Fig. 2 is the side-looking structural representation of Fig. 1.
Label among the figure
1, following 2, support plate 3, liquor box 4, float 5, reflecting disc
6, laser ranging 7, protective housing 8, microprocessor 9, device for digit-displaying 10, valve
11, fixed displacement pump 12, positive displacement pump.
Embodiment
See also Fig. 1, Fig. 2, the fluid density determinator, it is made up of following, support plate, liquor box, float, reflecting disc, laser ranging head, protective housing, microprocessor, device for digit-displaying, valve, fixed displacement pump, positive displacement pump.Liquor box 3 is fixed on down on the seat 1, and liquor box 3 bottoms are connected with positive displacement pump 12 through pipeline, valve 10, and liquor box 3 middle parts are connected with valve 10, fixed displacement pump 11 through pipeline.Be built-in with float 4 at liquor box 3, the sliding eye that float 4 is provided with through plane on the liquor box 3 stretches out outside the liquor box 3, and its upper end is connected with reflecting disc 5.Be connected with support plate 2 at liquor box 3 rear sides; Support plate 2 upper ends are fixed with protective housing 7; Microprocessor 8 is fixed in the protective housing 7 and with the device for digit-displaying 9 that is fixed on protective housing 7 fronts and is electrically connected; Also be fixed with laser ranging 6 through support in support plate 2 upper ends, laser ranging 6 is electrically connected with microprocessors 8 in being fixed on protective housing 7.
Method of testing and principle: the 200ml testing liquid is injected lower end liquor box 3 through fixed displacement pump 11, valve 10; Wherein float 4 will float and change the distance of float upper surface reflecting disc 5 and laser ranging 6; The light that utilizes reflection of light that laser ranging 6 is sent returns through reflecting disc 5; On device for digit-displaying 9, demonstrate float through microprocessor 8 processing calculating and be immersed in the length in the liquid; Can accurately record the density of testing liquid then (testing liquid density is for
according to
; The density of float is
; Float length is
, and the length that is immersed in float in the liquid is
).Can change the liquid in the liquor box 3 through positive displacement pump 12, reach the purpose of measuring different liquids.
Claims (1)
1. fluid density determinator, it is made up of following, support plate, liquor box, float, reflecting disc, laser ranging head, protective housing, microprocessor, device for digit-displaying, valve, fixed displacement pump, positive displacement pump; It is characterized in that: liquor box (3) is fixed on down on the seat (1), and liquor box (3) bottom is connected with positive displacement pump (12) through pipeline, valve (10), and liquor box (3) middle part is connected with valve (10), fixed displacement pump (11) through pipeline; Be built-in with float (4) at liquor box (3), float (4) stretches out outside the liquor box (3) through the sliding eye that the last plane of liquor box (3) is provided with, and its upper end is connected with reflecting disc (5); Be connected with support plate (2) at liquor box (3) rear side; Support plate (2) upper end is fixed with protective housing (7); Microprocessor (8) is fixed in the protective housing (7) and with the device for digit-displaying (9) that is fixed on protective housing (7) front and is electrically connected; Also be fixed with laser ranging head (6) through support in support plate (2) upper end, laser ranging head (6) microprocessor (8) interior with being fixed on protective housing (7) is electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201508879U CN202533344U (en) | 2012-04-11 | 2012-04-11 | Liquid density measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012201508879U CN202533344U (en) | 2012-04-11 | 2012-04-11 | Liquid density measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202533344U true CN202533344U (en) | 2012-11-14 |
Family
ID=47134520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012201508879U Expired - Fee Related CN202533344U (en) | 2012-04-11 | 2012-04-11 | Liquid density measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202533344U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372152A (en) * | 2015-12-09 | 2016-03-02 | 曲阜师范大学 | Alcohol specific gravity measuring device |
| CN113267422A (en) * | 2021-05-21 | 2021-08-17 | 广州丁海科技有限公司 | Seawater salinity online monitoring system and method |
-
2012
- 2012-04-11 CN CN2012201508879U patent/CN202533344U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372152A (en) * | 2015-12-09 | 2016-03-02 | 曲阜师范大学 | Alcohol specific gravity measuring device |
| CN105372152B (en) * | 2015-12-09 | 2019-03-05 | 曲阜师范大学 | A kind of alcohol specific gravity test instrument |
| CN113267422A (en) * | 2021-05-21 | 2021-08-17 | 广州丁海科技有限公司 | Seawater salinity online monitoring system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121114 Termination date: 20140411 |