CN2549457Y - Magnetofluid appearent density accompanying magnetic field change koniogravimeter - Google Patents
Magnetofluid appearent density accompanying magnetic field change koniogravimeter Download PDFInfo
- Publication number
- CN2549457Y CN2549457Y CN 02273670 CN02273670U CN2549457Y CN 2549457 Y CN2549457 Y CN 2549457Y CN 02273670 CN02273670 CN 02273670 CN 02273670 U CN02273670 U CN 02273670U CN 2549457 Y CN2549457 Y CN 2549457Y
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- magnetic field
- balance
- electromagnet
- magnetic
- apparent density
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- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
The utility model provides a magnetic fluid apparent density accompanying magnetic field change koniogravimeter, which is formed by an electromagnet and a single-pan balance. A case is internally provided with an electromagnet; the upper cover of the case is communicated with a change-over switch and is opened with a window corresponding with the electromagnet; wherein, the window is inserted with a magnetic fluid container. Moreover, the upper cover of the case is provided with a single-pan balance, the balance seat is provided with a screw rod and a nut, and the balance is provided with a position ruler; one side of the balance is provided with a plummet, and the other side of the balance is provided with a single pan; the plummet is hanged in the liquid in the container. By experiment, the student can master the characteristics of a new material. When in operation, when the external magnetic filed is zero, the density value of the liquid including the magnetic fluid when the magnetic filed is zero can be measured; when the external magnetic field is vertical magnetic field, through the reading value of the ammeter, the magnetic field can be recorded; and then by measuring, the series data corresponding with the apparent density can be obtained, and the influence on the magnetic fluid apparent density caused by the magnetic field is summarized, analyzed and researched; when the external field is not changed, the apparent density values of different liquid layers in the magnetic fluid are different. The utility model improves the practical capability of the students.
Description
(1) technical field:
The utility model relates to the instruments used for education that Physical Experiment is used, and refers in particular to the design and fabrication technology of new material performance instrument for measuring variation of apparent density of magnetofluid with magnetic field.
(2) background technology:
At present the density experiment in the university teaching material all is the measurements to solid, liquid medium, and the solid, liquid two-phase medium is in the measurement of density in the variation magnetic field, and is theoretical and experiment is all unique.The colloidal solution that the new material magnetic fluid is made up of nano level magnetic particle, surfactant and carrier fluid.Magnetic particle is done Brownian movement in carrier fluid, the end absorption magnetic particle of surfactant molecule, and the other end floats in carrier fluid, and surfactant forms barrier potential on the surface of magnetic particle, hinders the gathering of magnetic particle, keeps the stable of magnetic fluid.This new material has its intrinsic characteristic, does not have theory, sense organ understanding the teaching middle school student, is not easy to the student new material is researched and analysed the summary rule, cultivates student experimenting research ability.In addition, when teachers ' teaching, also have difficulties.
(3) summary of the invention:
The utility model solves the problem that the infrastest content of courses is outmoded, teaching method is single emphatically, and the characteristic that the student is supportted hold new material is analyzed and summed up rule, cultivates to start experimental ability.
The technical solution of the utility model is: be made of electromagnet and single pan of a steelyard balance, in casing, adorn electromagnet, box cover has the adjustable switch of connecting electromagnet, has the window of corresponding electromagnet on box cover, inserts the container that magnetic fluid is housed in the window, on box cover, adorn single pan of a steelyard balance, on single pan of a steelyard Libra screw rod, nut are arranged, on single pan of a steelyard balance the position scale is arranged, balance one side is a plummet, opposite side is single pan of a steelyard, and plummet is suspended in the vessel liquid.
The beneficial effects of the utility model are: the student can be supportted and hold the characteristic of new material magnetic fluid apparent density with changes of magnetic field by experiment.During operation, when external magnetic field is zero, but the various liquid of extended measurements comprise density value when magnetic fluid in magnetic field is zero.When external magnetic field is longitudinal magnetic field, by the size of reometer reading value recording magnetic field, get apparent density corresponding series data by weighing, analysis and summary research external magnetic field is to the influence of magnetic fluid apparent density.When external magnetic field is transverse magnetic field how about? inspiring the student to strengthen magnetic field is the understanding of vector notion.When external magnetic field was constant, the apparent density value of variant liquid layer was all different in the magnetic fluid.Make the student therefrom be familiar with the unevenness of solid liquid media density in magnetic field, increase understanding new material magnetic fluid characteristic.
(4) description of drawings:
Figure is the utility model structural representation.
(5) embodiment:
Instrument for measuring variation of apparent density of magnetofluid with magnetic field is made of electromagnet and single pan of a steelyard balance as shown in the figure, and a side is adorned vertical electromagnet 2 in casing 1, in casing opposite side dress transverse electric magnet 6 and yoke 7.The adjustable switch of connecting electromagnet is arranged on the box cover, and electromagnet changes with exciting current can change the magnetic field power.Have the window of corresponding electromagnet on the box cover, insert the container 5 that magnetic fluid is housed in the window.Single pan of a steelyard balance 10 is housed on box cover, screw rod 8, nut 9 are arranged on single pan of a steelyard Libra, on single pan of a steelyard balance position scale 11 is arranged.Balance one side is a plummet 3, and opposite side is single pan of a steelyard 12, and plummet is suspended in the container magnetic fluid 4, and the position can be changed with the requirement of measuring magnetic field in the position of plummet and single pan of a steelyard during experiment, satisfies the check weighing under the different magnetic field situation.Adopt the common machine electric processing method just can produce, can make the student improve the ability that uses one's hands and brains greatly.
Claims (3)
1, instrument for measuring variation of apparent density of magnetofluid with magnetic field, constitute by electromagnet and single pan of a steelyard balance, it is characterized in that: dress electromagnet [2] in casing [1], box cover has the adjustable switch of connecting electromagnet, has the window of corresponding electromagnet on box cover, inserts in the window container [5] of magnetic fluid [4] is housed, on box cover, adorn single pan of a steelyard balance [10], balance one side is plummet [3], and opposite side is single pan of a steelyard [12], and plummet is suspended in the vessel liquid.
2, instrument for measuring variation of apparent density of magnetofluid with magnetic field according to claim 1 is characterized in that: screw rod [8], nut [9] are arranged on single pan of a steelyard Libra, position scale [11] is arranged on single pan of a steelyard balance.
3, instrument for measuring variation of apparent density of magnetofluid with magnetic field according to claim 1 is characterized in that: a side is adorned vertical electromagnet [2] in casing [1], in casing opposite side dress transverse electric magnet [6] and yoke [7].
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273670 CN2549457Y (en) | 2002-06-07 | 2002-06-07 | Magnetofluid appearent density accompanying magnetic field change koniogravimeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02273670 CN2549457Y (en) | 2002-06-07 | 2002-06-07 | Magnetofluid appearent density accompanying magnetic field change koniogravimeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2549457Y true CN2549457Y (en) | 2003-05-07 |
Family
ID=33738100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02273670 Expired - Fee Related CN2549457Y (en) | 2002-06-07 | 2002-06-07 | Magnetofluid appearent density accompanying magnetic field change koniogravimeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2549457Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142290A (en) * | 2013-05-09 | 2014-11-12 | 中国石油化工股份有限公司 | Rock sample bulk volume and variable density determination apparatus and method thereof |
| CN111721661A (en) * | 2019-03-22 | 2020-09-29 | 中国石油化工股份有限公司 | Rock sample total volume measuring device and method |
| CN113109202A (en) * | 2021-03-25 | 2021-07-13 | 北京交通大学 | Device and method for measuring magnetic liquid evaporation capacity under magnetic field temperature field coupling effect |
-
2002
- 2002-06-07 CN CN 02273670 patent/CN2549457Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104142290A (en) * | 2013-05-09 | 2014-11-12 | 中国石油化工股份有限公司 | Rock sample bulk volume and variable density determination apparatus and method thereof |
| CN104142290B (en) * | 2013-05-09 | 2016-08-03 | 中国石油化工股份有限公司 | A kind of rock sample cumulative volume variable density determinator and method |
| CN111721661A (en) * | 2019-03-22 | 2020-09-29 | 中国石油化工股份有限公司 | Rock sample total volume measuring device and method |
| CN113109202A (en) * | 2021-03-25 | 2021-07-13 | 北京交通大学 | Device and method for measuring magnetic liquid evaporation capacity under magnetic field temperature field coupling effect |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |