CN202003548U - Compound pendulum instrument - Google Patents
Compound pendulum instrument Download PDFInfo
- Publication number
- CN202003548U CN202003548U CN2010206944470U CN201020694447U CN202003548U CN 202003548 U CN202003548 U CN 202003548U CN 2010206944470 U CN2010206944470 U CN 2010206944470U CN 201020694447 U CN201020694447 U CN 201020694447U CN 202003548 U CN202003548 U CN 202003548U
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- China
- Prior art keywords
- screw
- column
- base
- photogate
- rotating shaft
- 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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Abstract
The utility model provides a compound pendulum instrument. A scaled column bottom is provided with a pedestal fixed by a fixing screw, under the pedestal are arranged two supporting screws, the top of a supporting screw at one side of the pedestal is provided with an adjusting screw, the bottom of the supporting screw at one side of the pedestal is provided with an adjusting wheel, the middle of the pedestal upside is provided with a level meter, the top of the column is provided with a fixing seat with the fixing screw, one side of the fixing seat is provided with a rotating shaft with a bearing and is fixed with a protractor, a swing rod with even location holes is hung on the rotating shaft, the bottom of the column is provided with a rod photoelectric gate slide carriage with a spring, one side of the photoelectric gate slide carriage is provided with a photoelectric gate, and one side of the photoelectric gate is provided with a photoelectric timer connected with a wire. The compound pendulum instrument is convenient in operation and usage, and can improve experiment accuracy and reduce experiment error.
Description
Technical field
The physical pendulum instrument that the utility model relates to measuring period in a kind of laboratory.
Background technology
At present, the physical pendulum that each universities and colleges uses mostly is J2LD23 type physical pendulum, though the product of some other models is also arranged, but its structure is all similar, use and find that there is deficiency in design in these physical pendulums, for example: do not have the balance indicating device on the former instrument, instrument whether leveling will carefully observe the circular hole on the fork and the gap of the edge of a knife just know, and is very inconvenient.
Summary of the invention
In order to overcome the in-problem deficiency of prior art, the utility model provides a kind of novel high precision physical pendulum instrument, the physical pendulum instrument after this improvement, and it is not only easy for operation, has also improved the accuracy of experiment simultaneously, has reduced experimental error.
The technical scheme that its technical matters that solves the utility model adopts is: the physical pendulum instrument, the fixing base of the useful fixed screw in bottom of the column of band scale, the supporting screw that two band cushion blocks are arranged below the base, adjusting screw is arranged at base supporting screw top on one side, regulating wheel is arranged at the bottom, and level meter is arranged in the middle of the top of base.The holder of band fixing screw is arranged at the top of column, and pillar cover is arranged above it, one side the rotating shaft that has tape spool to hold of holder and is fixed with protractor, hangs with the fork with even pilot hole in the rotating shaft, fork adjusting screw arranged up and down.The photogate slide of the bar of band spring is arranged at the column bottom, Yi Bian photogate is arranged, one side the phototimer that company's electric wire is arranged of photogate.
The base of physical pendulum instrument is by 2 supportings, and each support foot all is placed on the base cushion block, and supporting screw outside in right side also is with regulating wheel, can carry out horizontal adjustment to instrument, and set screw adopts fine thread, regulates accurately.So just having overcome does not have cushion block to be easy to generate slip below the balance adjustment screw of former instrument, damages desktop easily, regulates defectives such as difficulty.On the base of physical pendulum instrument level meter has been installed, the convenient base balance of regulating.The physical pendulum instrument is at column front calibrate, and evenly the bar shaped fork bores a pilot hole every 1cm, and pilot hole is hung in the rotating shaft, cooperates by parts such as column and photogate slides.The minimum interval of moving with photogate of moving that can guarantee fork all is 1cm accurately, improves the period measurement precision.Physical pendulum adopts high-quality ultralight bearing to come the support for lightweight rotating shaft, to reduce friction.Simultaneously do an elastic opening at the front end of axle, both made things convenient for fork to hang, guarantee that again the hole on the fork closely cooperates with axle formation, do not influence the measurement of hunting period, the physical pendulum instrument has increased protractor on the seat of honour, observe the pivot angle of physical pendulum swing.
The suspension of the fork of physical pendulum instrument is to cooperate with the rotating shaft at the instrument seat of honour by the circular hole on the fork to hang fork up work less than 5 ° swing, and instrument utilizes phototimer to measure the cycle when being in the light; By changing physical pendulum in the position of rotating shaft, can measure physical pendulum around cycle of different revolving shaftes swings and revolving shaft to the distance of center of gravity, draw the data mapping, thereby reflect physical pendulum hunting period and revolving shaft relation intuitively to centroidal distance.
The beneficial effects of the utility model are, this physical pendulum instrument is not only easy for operation, and can heighten the accuracy of experiment, reduce experimental error.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a physical pendulum instrument front view.
1. protractors among the figure, 3. rotating shaft, 4. fork, 6. photogate, 7. electric wire, 8. phototimer, 9. adjusting screw, 10. cushion block, 11. supporting screws, 12. regulating wheels, 13. level meters, 14. fixed screws, 17. base, 18. photogate slides, 19. columns, 20. holders, 22. pillar covers.
Embodiment
In Fig. 1, physical pendulum instrument, the base 17 that the useful fixed screw 14 in the bottom of the column 19 of band scale is fixed, the supporting screw 11 that two band cushion blocks 10 are arranged below the base, there is adjusting screw 9 base supporting screw top on one side, and there is regulating wheel 12 in bottom, and level meter 13 is arranged in the middle of the top of base.The holder 20 of band fixing screw is arranged at the top of column, and pillar cover 22 is arranged above it.The rotating shaft 3 that one side of holder has tape spool to hold, and be fixed with protractor 1 hangs with the fork 4 with even pilot hole in the rotating shaft, fork adjusting screw 9 arranged up and down.The photogate slide 18 of the bar of band spring is arranged at the column bottom, Yi Bian photogate 6 is arranged, one side the phototimer 8 that company's electric wire 7 is arranged of photogate.
Claims (4)
1. physical pendulum instrument, by protractor, adjusting screw, rotating shaft, fork, photogate, electric wire, phototimer, cushion block, supporting screw, regulating wheel, level meter, fixed screw, base, the photogate slide, column, holder, pillar cover is formed, it is characterized in that: the fixing base (17) of the useful fixed screw in bottom (14) of the column (19) of band scale, two supporting screws (11) are arranged below the base, level meter (13) is arranged in the middle of the top of base, the holder (20) of band fixing screw is arranged at the top of column, the rotating shaft (3) that one side of holder has tape spool to hold, and be fixed with protractor (1), hang with fork (4) in the rotating shaft with even pilot hole, the photogate slide (18) of the bar of band spring is arranged at the column bottom, Yi Bian photogate (6) is arranged.
2. physical pendulum instrument according to claim 1 is characterized in that: one side photogate has a phototimer (8).
3. physical pendulum instrument according to claim 1 is characterized in that: adjusting screw (9) is arranged at base supporting screw top on one side.
4. physical pendulum instrument according to claim 1 is characterized in that: regulating wheel (12) is arranged at base supporting screw bottom on one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206944470U CN202003548U (en) | 2010-12-31 | 2010-12-31 | Compound pendulum instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206944470U CN202003548U (en) | 2010-12-31 | 2010-12-31 | Compound pendulum instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202003548U true CN202003548U (en) | 2011-10-05 |
Family
ID=44706281
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206944470U Expired - Fee Related CN202003548U (en) | 2010-12-31 | 2010-12-31 | Compound pendulum instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202003548U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723023A (en) * | 2012-06-04 | 2012-10-10 | 四川大学 | Clamped type compound pendulum with graduated scale |
| CN104157187A (en) * | 2014-09-10 | 2014-11-19 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Manufacturing process of compound pendulum rotating shaft with automatic deflection correcting function |
| CN104157185A (en) * | 2014-09-10 | 2014-11-19 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Manufacturing process of hidden line contact type compound pendulum |
| CN108981974A (en) * | 2018-07-10 | 2018-12-11 | 南京航空航天大学 | A kind of superhigh precision micro-force measuring apparatus and measurement method based on gravity physical pendulum |
-
2010
- 2010-12-31 CN CN2010206944470U patent/CN202003548U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102723023A (en) * | 2012-06-04 | 2012-10-10 | 四川大学 | Clamped type compound pendulum with graduated scale |
| CN102723023B (en) * | 2012-06-04 | 2013-12-04 | 四川大学 | Clamped type compound pendulum with graduated scale |
| CN104157187A (en) * | 2014-09-10 | 2014-11-19 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Manufacturing process of compound pendulum rotating shaft with automatic deflection correcting function |
| CN104157185A (en) * | 2014-09-10 | 2014-11-19 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Manufacturing process of hidden line contact type compound pendulum |
| CN104157185B (en) * | 2014-09-10 | 2016-09-07 | 宁波市鄞州青林医疗器械技术咨询有限公司 | Stealthy line contact type physical pendulum manufacture craft |
| CN104157187B (en) * | 2014-09-10 | 2016-09-07 | 宁波市鄞州青林医疗器械技术咨询有限公司 | There is the physical pendulum rotating shaft manufacture craft of automatic deviation rectifying function |
| CN108981974A (en) * | 2018-07-10 | 2018-12-11 | 南京航空航天大学 | A kind of superhigh precision micro-force measuring apparatus and measurement method based on gravity physical pendulum |
| CN108981974B (en) * | 2018-07-10 | 2020-08-07 | 南京航空航天大学 | Ultra-high-precision micro-force measuring device and method based on gravity compound pendulum |
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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: 20111005 Termination date: 20111231 |