CN2710077Y - Basic teaching plate of electronic dynameter - Google Patents
Basic teaching plate of electronic dynameter Download PDFInfo
- Publication number
- CN2710077Y CN2710077Y CN 200420060022 CN200420060022U CN2710077Y CN 2710077 Y CN2710077 Y CN 2710077Y CN 200420060022 CN200420060022 CN 200420060022 CN 200420060022 U CN200420060022 U CN 200420060022U CN 2710077 Y CN2710077 Y CN 2710077Y
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- bzq
- rheostat
- dyb
- spring
- electronic
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Abstract
A basic teaching plate of electronic dynameter demonstrating the principle of sensor is characterized in that one end of a spring TH is fixed to the teaching board, the other end of the spring is connected with a weight FM, one end of a voltmeter DYB and the contact slider of a rheostat BZQ; one end of a switch KG is connected with one end of the rheostat BZQ by a battery DC, and the other end of the switch KG is connected with the other end of the rheostat BZQ and one end of the voltmeter DYB.
Description
Technical field
The utility model relates to a kind of physics teaching aid, particularly a kind of electronic dynamometer principle demonstrator of demonstrating Fundamentals of Sensors.
Background technology
The application of sensor is deep into people's culture, life, the every field of work, the particularly electronic sensor in development in Hi-Tech field are used, and be very extensive especially very early widely.As fields such as electronics, instrument, machinery, transportation, carrier rocket, cosmic communications, all be unable to do without electronic sensor undoubtedly, it is the basis and the core component in these fields.So State Education Commission in the fresh course teaching material of high school physics, has increased the principle of sensors course in time.But the imagery teaching aid of Fundamentals of Sensors and making lacks very much.How to allow the student can learn and understand Fundamentals of Sensors more intuitively, relevant demonstrator has very big help certainly to the student.
Summary of the invention
The purpose of this utility model is to disclose the sub-dynamometer principle of a kind of teaching consuming energy demonstrator.
For reaching the foregoing invention purpose, the technical scheme that the utility model adopted is
The end of spring TH is fixed on the teaching board, the spring other end is connected with counterweight FM, voltage table DYB one end, rheostat BZQ sliding contact, the end of K switch G is connected with rheostat BZQ one end by battery DC, and the other end of K switch G is connected with the rheostat BZQ other end, voltage table DYB one end.As shown in Figure 1.Its principle of work is
Under the action of gravity of spring TH when counterweight hook FMG has counterweight, during by downward tensile deformation, the sliding contact that is fixedly connected with rheostat BZQ also moves simultaneously, and with moving the resistance that has changed rheostat BZQ.Because rheostat BZQ, battery DC, K switch G and voltage table DYB have formed a circuit loop, when rheostat BZQ sliding contact moves and the change in resistance that produces, the current/voltage that makes in the loop to be passed through also changes thereupon.Consequently: counterweight FM, spring TH, voltage table DYB, rheostat BZQ are varied to direct ratio.Be the size of counterweight FM, directly influence the variation size of spring TH, rheostat BZQ, voltage table DYB.And its changing value can be directly reads out from the amplitude of variation of voltage table DYB pointer, thereby demonstrates the gravity of tested counterweight.
After advantage of the present utility model is the demonstration of student by above-mentioned principle, the student is understood at a glance, bright once saying, can learn very clear, expressly and understand its principle.
Description of drawings
Fig. 1 is the utility model electronic dynamometer circuit theory teaching schematic diagram.
Wherein: TH, spring; FM, counterweight; DYB, voltage table; BZQ, slider of rheostat; KG, switch; DC, battery.
Embodiment
As shown in Figure 1.The end of spring TH is fixed on the teaching board, the spring other end is connected with counterweight FM, voltage table DYB one end, rheostat BZQ sliding contact, the end of K switch G is connected with rheostat BZQ one end by battery DC, and the other end of K switch G is connected with the rheostat BZQ other end, voltage table DYB one end.
Claims (1)
1, a kind of electronic dynamometer principle demonstrator of demonstrating Fundamentals of Sensors, it is characterized in that: an end of spring (TH) is fixed on the teaching board, the spring other end is connected with counterweight (FM), voltage table (DYB) end, rheostat (BZQ) sliding contact, one end of switch (KG) is connected with rheostat (BZQ) end by battery (DC), and the other end of switch (KG) is connected with rheostat (BZQ) other end, voltage table (DYB) end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060022 CN2710077Y (en) | 2004-06-28 | 2004-06-28 | Basic teaching plate of electronic dynameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420060022 CN2710077Y (en) | 2004-06-28 | 2004-06-28 | Basic teaching plate of electronic dynameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2710077Y true CN2710077Y (en) | 2005-07-13 |
Family
ID=34851969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420060022 Expired - Fee Related CN2710077Y (en) | 2004-06-28 | 2004-06-28 | Basic teaching plate of electronic dynameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2710077Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460723A (en) * | 2014-10-10 | 2015-03-25 | 哈尔滨师范大学 | Rope actuator system for controlling flexile space structural vibration |
| CN107984461A (en) * | 2017-12-06 | 2018-05-04 | 哈尔滨工业大学 | Towards the pneumatic upper limb assistance exoskeleton robot for carrying work |
-
2004
- 2004-06-28 CN CN 200420060022 patent/CN2710077Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104460723A (en) * | 2014-10-10 | 2015-03-25 | 哈尔滨师范大学 | Rope actuator system for controlling flexile space structural vibration |
| CN107984461A (en) * | 2017-12-06 | 2018-05-04 | 哈尔滨工业大学 | Towards the pneumatic upper limb assistance exoskeleton robot for carrying work |
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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 |