CN204791681U - Simple pendulum method acceleration of gravity measuring device - Google Patents
Simple pendulum method acceleration of gravity measuring device Download PDFInfo
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- CN204791681U CN204791681U CN201520529540.9U CN201520529540U CN204791681U CN 204791681 U CN204791681 U CN 204791681U CN 201520529540 U CN201520529540 U CN 201520529540U CN 204791681 U CN204791681 U CN 204791681U
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Abstract
The utility model discloses a simple pendulum method acceleration of gravity measuring device relates to a physical experiment device, is especially to comprise base, bracing piece and simple pendulum, and integrated in the base have treater, upper surface to be equipped with touch panel, the bracing piece vertical fixation on the base, its top transversely is equipped with the motor, the power output shaft of motor and the pendulum of simple pendulum rope winding cooperation, the below of pendulum rope is fixed with pendulum ball made of iron, be equipped with magnetic field generator between pendulum ball and base, magnetic field generator is located pendulum ball below and is equipped with reflective photoelectric switch, the treater couples with touch panel, motor, magnetic field generator and reflective photoelectric switch circuit respectively. The utility model discloses earth acceleration of gravity can be enough measured and the simulation acceleration of gravity who utilizes the magnetic field stack to produce also can be measured to can design the multiunit control experiment according to the formula, let the student understand simple pendulum method acceleration of gravity's methods of measurement more, the impression is more deep, and its degree of automation is high, the principle is simple, the extensive popularization of being convenient for.
Description
Technical field
The utility model relates to a kind of physics facility, refers more particularly to a kind of single pendulum normal gravity acceleration measurement device.
Background technology
Single pendulum is senior middle school physics teaching content, its formula of reduction display period of single pendulum is relevant with pendulum length and acceleration of gravity, so using single pendulum method to measure acceleration of gravity is also an important learning content, current simple pendulum device is that a support is provided with single pendulum, no matter swing rope length adjustment or the measurement of hunting period is all need manually to carry out, and the sensation of people often exists error, and then the acceleration of gravity calculated is caused to depart from correct value.
Summary of the invention
The purpose of this utility model is exactly to overcome the problems referred to above, provides a kind of single pendulum normal gravity acceleration measurement device.
Single pendulum normal gravity acceleration measurement device of the present utility model, is be made up of base, support bar and single pendulum, is integrated with processor, upper surface is provided with contact panel in base; Support bar is vertically fixed on base, its top is laterally provided with motor; The power output shaft of motor is wound around with the swing rope of single pendulum and coordinates, and the below of swing rope is fixed with swing ball made of iron; Be provided with magnetic field generator between swing ball and base, magnetic field generator is positioned at below swing ball and is provided with reflective photoelectric switch; Processor connects with contact panel, motor, magnetic field generator and reflective photoelectric switch circuit respectively.
As further improvement of the utility model, supporting bar top is laterally provided with motor bin, and motor is fixed in motor bin.
As further improvement of the utility model, output shaft and the friction pulley of motor are fixed, and are provided with elongated aperture slots in the below of friction pulley, pass through after swing rope and friction pulley are wound around from elongated aperture slots.
As further improvement of the utility model, support bar there is length metering scale.
As further improvement of the utility model, below motor bin, be provided with angle gauge measuring device.
As further improvement of the utility model, contact panel is liquid crystal touch screen.
Single pendulum normal gravity acceleration measurement device of the present utility model, terrestrial gravitation acceleration can either be measured and also can measure the simulated gravity acceleration utilizing magnetic field superposition to produce, and can design according to formula and organize control experiment more, student is allowed more to understand the measuring method of single pendulum normal gravity acceleration, impression is more deep, its automaticity is high, principle simple, is convenient to large-scale promotion.
Accompanying drawing explanation
Fig. 1 is the structural drawing of single pendulum normal gravity acceleration measurement device of the present utility model;
Fig. 2 is the module map of single pendulum normal gravity acceleration measurement device of the present utility model.
Embodiment
Below in conjunction with accompanying drawing to single pendulum normal gravity acceleration measurement device of the present utility model, be described further:
Single pendulum normal gravity acceleration measurement device of the present utility model is made up of base 1, support bar 2 and single pendulum.
In base 1, be integrated with processor 4, its upper surface is also embedded with contact panel 5, and control panel 5 is touch display screen, is mainly used in obtaining measured value in device startup, closedown, parameters and display experimentation; Support bar 2 is vertically fixed on base 1, top is laterally provided with motor bin 11, motor 6 is fixed in motor bin 11, the power output shaft of motor 6 is fixed with a friction pulley 12, friction pulley 12 is wound around with the swing rope 7 of single pendulum, and swing rope 7 is passed through from elongated aperture slots 13 after being wound around with friction pulley 12, this elongated aperture slots 13 is located at the below of friction pulley 12, for limiting length and the hunting range of swing rope 7, prevent swing rope 7 swing time swing excessive or swing around friction pulley 12, the length of swing rope 7 in one-period is constantly changed, and impact records the degree of accuracy of result; The below of swing rope 7 is fixed with swing ball 8 made of iron, and swing ball 8 made of iron has Different Weight, can experimentally need to change.
Magnetic field generator 9 is provided with between swing ball 8 and base 1, and magnetic field generator 9 is positioned at below swing ball 8 and is provided with reflective photoelectric switch 10, when reflective photoelectric switch 10 should be located at swing rope 7 perpendicular to ground, the below of swing ball 8, reflect to allow and receive sensitiveer, swing ball 8 can paint chequered with black and white pattern.
As shown in Figure 2, in this device device, processor 4 connects with contact panel 5, motor 6, magnetic field generator 9 and reflective photoelectric switch 10 circuit respectively.
Support bar 2 there is length metering scale 15, for measuring the length of swing rope 7, its zero degree initial with elongated aperture slots 13 below be positioned on straight line, be provided with angle gauge measuring device 14 below motor bin 11, for measuring single pendulum pivot angle, electrolevel 3 also can be installed in order to regulate the level of this device.
Single pendulum normal gravity acceleration measurement device of the present utility model, its concrete using method is as follows:
Open after this device horizontal positioned, first when without the acceleration of gravity measuring the earth when magnetic field superposition, contact panel 5 can be utilized to control motor 6 to adjust the length of swing rope 7, the swing ball 8 of Different Weight can also be changed, both combine the period of single pendulum measuring different initial pivot angle, due to the position of reflective photoelectric switch 10, so when swing ball 8 is through reflective photoelectric switch 10 twice, it was 1/2nd cycles, reflective photoelectric switch 10 sends signal, processor 4 carries out counting and computation period is shown on control panel 5, obtain calculating acceleration of gravity according to formula after cycle metering after a while.
When opening magnetic field generator 9, contact panel 5 can be utilized to carry out the intensity of controlling magnetic field by adjustment size of current, because swing ball 8 is iron, it is also subject to the gravitation (ignoring with air friction) in magnetic field except under tension, gravity, now repeat above-mentioned experiment, the simulated gravity produced when magnetic field superposition can be calculated.
Claims (6)
1. arrangement acceleration of gravity measurement mechanism, is be made up of base (1), support bar (2) and single pendulum, it is characterized in that being integrated with processor (4) in base (1), upper surface is provided with contact panel (5); Support bar (2) is vertically fixed on base (1), its top is laterally provided with motor (6); The power output shaft of motor (6) is wound around with the swing rope (7) of single pendulum and coordinates, and the below of swing rope (7) is fixed with swing ball made of iron (8); Be provided with magnetic field generator (9) between swing ball (8) and base (1), magnetic field generator (9) is positioned at swing ball (8) below and is provided with reflective photoelectric switch (10); Processor (4) connects with contact panel (5), motor (6), magnetic field generator (9) and reflective photoelectric switch (10) circuit respectively.
2. single pendulum normal gravity acceleration measurement device according to claim 1, it is characterized in that support bar (2) top is laterally provided with motor bin (11), motor (6) is fixed in motor bin (11).
3. single pendulum normal gravity acceleration measurement device according to claim 1 and 2, it is characterized in that output shaft and the friction pulley (12) of motor (6) are fixed, be provided with elongated aperture slots (13) in the below of friction pulley (12), pass through from elongated aperture slots (13) after swing rope (7) and friction pulley (12) are wound around.
4. single pendulum normal gravity acceleration measurement device according to claim 1, is characterized in that support bar (2) has length metering scale (15).
5. single pendulum normal gravity acceleration measurement device according to claim 1 and 2, is characterized in that motor bin (11) below is provided with angle gauge measuring device (14).
6. single pendulum normal gravity acceleration measurement device according to claim 1, is characterized in that contact panel (5) is liquid crystal touch screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529540.9U CN204791681U (en) | 2015-07-21 | 2015-07-21 | Simple pendulum method acceleration of gravity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520529540.9U CN204791681U (en) | 2015-07-21 | 2015-07-21 | Simple pendulum method acceleration of gravity measuring device |
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| Publication Number | Publication Date |
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| CN204791681U true CN204791681U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520529540.9U Expired - Fee Related CN204791681U (en) | 2015-07-21 | 2015-07-21 | Simple pendulum method acceleration of gravity measuring device |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019396A (en) * | 2016-06-24 | 2016-10-12 | 南京信息工程大学 | Gravitational acceleration non-horizontal measurement system |
| JP6160019B1 (en) * | 2017-01-25 | 2017-07-12 | メディカルテック株式会社 | Twin pendulum tester |
| CN108461017A (en) * | 2018-05-08 | 2018-08-28 | 佛山拾念科技有限公司 | A kind of physics teaching simple pendulum device |
| CN108693563A (en) * | 2018-07-12 | 2018-10-23 | 湖南科众兄弟科技有限公司 | Resonant mode absolute gravity measurement device |
| CN110517564A (en) * | 2019-08-15 | 2019-11-29 | 诸暨市蓝了电子科技有限公司 | Simple pendulum device and experiment with simple pendulum method |
| CN111739389A (en) * | 2020-07-14 | 2020-10-02 | 杭州师范大学 | Multifunctional simple pendulum experimental device |
| CN113053213A (en) * | 2019-12-26 | 2021-06-29 | 安徽春月科教设备有限公司 | Simple pendulum ball presentation device for physical teaching |
| WO2022166834A1 (en) * | 2021-02-02 | 2022-08-11 | 中国人民解放军国防科技大学 | Remotely controllable gravitational acceleration physical experiment system |
-
2015
- 2015-07-21 CN CN201520529540.9U patent/CN204791681U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106019396A (en) * | 2016-06-24 | 2016-10-12 | 南京信息工程大学 | Gravitational acceleration non-horizontal measurement system |
| JP6160019B1 (en) * | 2017-01-25 | 2017-07-12 | メディカルテック株式会社 | Twin pendulum tester |
| CN108461017A (en) * | 2018-05-08 | 2018-08-28 | 佛山拾念科技有限公司 | A kind of physics teaching simple pendulum device |
| CN108693563A (en) * | 2018-07-12 | 2018-10-23 | 湖南科众兄弟科技有限公司 | Resonant mode absolute gravity measurement device |
| CN110517564A (en) * | 2019-08-15 | 2019-11-29 | 诸暨市蓝了电子科技有限公司 | Simple pendulum device and experiment with simple pendulum method |
| CN113053213A (en) * | 2019-12-26 | 2021-06-29 | 安徽春月科教设备有限公司 | Simple pendulum ball presentation device for physical teaching |
| CN111739389A (en) * | 2020-07-14 | 2020-10-02 | 杭州师范大学 | Multifunctional simple pendulum experimental device |
| WO2022166834A1 (en) * | 2021-02-02 | 2022-08-11 | 中国人民解放军国防科技大学 | Remotely controllable gravitational acceleration physical experiment system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20160721 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |