CN203325303U - Digital multipurpose electricity meter for demonstration - Google Patents
Digital multipurpose electricity meter for demonstration Download PDFInfo
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- CN203325303U CN203325303U CN201320445181XU CN201320445181U CN203325303U CN 203325303 U CN203325303 U CN 203325303U CN 201320445181X U CN201320445181X U CN 201320445181XU CN 201320445181 U CN201320445181 U CN 201320445181U CN 203325303 U CN203325303 U CN 203325303U
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- 230000005611 electricity Effects 0.000 title abstract 7
- 238000012360 testing method Methods 0.000 claims abstract description 10
- 239000000523 sample Substances 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 4
- 239000012141 concentrate Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 3
- 239000012467 final product Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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Abstract
The objective of the utility model is to provide a digital multipurpose electricity meter for demonstration. The digital multipurpose electricity meter is applied to classroom teaching, and demonstration can be performed to students when a teacher operates so that conversion is not needed and thus the digital multipurpose electricity meter for demonstration is quite convenient. In order to realize the mentioned objective, the digital multipurpose electricity meter for demonstration comprises a vertical meter body. The reverse surface of the meter body is an indication surface used by the teacher, and the front surface of the meter body is an observation surface used by the students. The indication surface used by the teacher and the observation surface used by the students both comprise numerical value display parts, measurement unit display parts and measurement range display parts which are arranged on the upper ends, multiple test function keys which are arranged on the middle parts, and probe interfaces which are arranged on the bottom parts. With the mentioned arrangement, when one surface of the digital multipurpose electricity meter for demonstration is operated, the other surface is also visible. When the teacher demonstrates, the teacher does not need to rotate the meter body and the students can see test results at first time. Similarly, when the students operate the meter, the teacher can observe on the other end that whether operation of the students is correct so that the digital multipurpose electricity meter for demonstration is quite convenient.
Description
Technical field
The utility model relates to a kind of teaching aid, relates in particular to a kind of demonstration digital versatile ammeter.
Background technology
Multimeter is a kind of common experimental apparatus, is the indispensable measurement instruments of department such as power electronics, generally take measuring voltage, electric current and resistance as fundamental purpose.Multimeter is divided into pointer multimeter and digital multimeter by display mode.It is a kind of multi-functional, multiple range measurement instrument, general multimeter can be measured DC current, DC voltage, alternating current, alternating voltage, resistance and audio-frequency electric equality, all right test cross stream electric current, electric capacity, inductance value and more semi-conductive parameters etc. of having.Therefore in teaching process, how the student of church correctly uses multimeter is also very important.
But the multimeter small volume, teacher can't take each student under platform into account while operating on classroom, and iff multimeter is amplified, teacher needs ceaselessly behaviour, to do to switch in two actions of ?demonstration, still arduous in the extreme.
The utility model content
The purpose of this utility model is to provide demonstration to use the digital versatile ammeter, for classroom instruction, can in teacher's operation, demonstrate to the student, does not need conversion, very convenient.
In order to realize described purpose, the utility model demonstration digital versatile ammeter, upright table body, index plane is used for the teacher in the described table body back side, described table body front is the observation of students face, and described teacher includes numerical value display part, measuring unit's display part and the range display part that is positioned at upper end with index plane and observation of students face; Be positioned at a plurality of test function keys at middle part and the probe interface of bottom.
Preferably, the numerical value display part of described observation of students face, measuring unit's display part and range display part concentrate in 16 * 16LED dot matrix screen.16 * 16LED dot matrix screen volume is larger, therefore can make the student in whole classroom all observe and obtain.
Preferably, the LED digital indicator that described teacher is four and 1/2nd with the numerical value display part of index plane, range shows and measuring unit shows and adopts band LED lamp to indicate.The part that the teacher uses only needs oneself to observe get final product, and therefore the less LED digital indicator of employing is indicated range and measuring unit by the mode of simple LED light simultaneously, cost-saving.
Preferably, described teacher is with also being provided with the outrange warning light on index plane.Because the teacher adopts LED light indication range with index plane, once therefore surpass range the outrange warning light can light and gives the alarm.
Preferably, described test function key comprises DC voltage, DC current, resistance, alternating voltage, alternating current, diode/break-make, temperature, data maintenance, triode, electric capacity, frequency, these buttons of inductance.These function buttons have been contained the content that students in middle and primary schools need to be grasped.
By such setting, the utility model demonstration simultaneously operates with the digital versatile ammeter, and another side also can be seen.The teacher does not need the stem body just can make the student very first time see test result when demonstration.Same, when the student operates ammeter, whether the operation that teacher just can observe the student at the other end is correct, very convenient.
The accompanying drawing explanation
Fig. 1 is the observation of students face structural representation of the utility model demonstration with the digital versatile ammeter.
Fig. 2 is that the utility model demonstration is used the index plane structural representation with the teacher of digital versatile ammeter.
Embodiment
As shown in Figure 1 and Figure 2: demonstration digital versatile ammeter, demonstration digital versatile ammeter, it is characterized in that, upright table body 1, index plane is used for the teacher in described table body 1 back side, described table body 1 front is the observation of students face, and described teacher includes numerical value display part, measuring unit's display part and the range display part that is positioned at upper end with index plane and observation of students face; Be positioned at a plurality of test function keys 2 at middle part and the probe interface 3 of bottom.The numerical value display part of described observation of students face, measuring unit's display part and range display part concentrate in 16 * 16LED dot matrix screen 4.The LED digital indicator 5 that described teacher is four and 1/2nd with the numerical value display part of index plane, range shows and measuring unit shows and adopts band LED lamp 6 to indicate.Described teacher is with also being provided with outrange warning light 7 on index plane.Described test function key 2 comprises DC voltage, DC current, resistance, alternating voltage, alternating current, diode break-make, temperature, data maintenance, triode, electric capacity, frequency, these buttons of inductance.
The utility model is used very simple, and the overall work principle of digital versatile ammeter is the same with multimeter.When but upper class hour teacher uses the index plane normal running the teacher, the process that the student can demonstrate the clear teacher of seeing of observation of students face one side at once.Student's observation just can not interrupt teacher's operation like this.On the other hand, the student also can be at observation of students face operation practice.Now its operating process can be seen that exemplary role is arranged by other students, and whether the teacher still can wrong with index plane observation student operation the teacher.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the scope of the claims of the present utility model.
Claims (5)
1. demonstrate and use the digital versatile ammeter, it is characterized in that, upright table body (1), index plane is used for the teacher in described table body (1) back side, described table body (1) front is the observation of students face, and described teacher includes numerical value display part, measuring unit's display part and the range display part that is positioned at upper end with index plane and observation of students face; Be positioned at a plurality of test function keys (2) at middle part and the probe interface (3) of bottom.
2. demonstrate and use the digital versatile ammeter according to claim 1, it is characterized in that, the numerical value display part of described observation of students face, measuring unit's display part and range display part concentrate in 16 * 16LED dot matrix screen (4).
3. demonstrate and use the digital versatile ammeter according to claim 1, it is characterized in that, the LED digital indicator (5) that described teacher is four and 1/2nd with the numerical value display part of index plane, range shows and measuring unit shows and adopts band LED lamp (6) to indicate.
4. demonstrate and use the digital versatile ammeter according to claim 1, it is characterized in that, described teacher is with also being provided with outrange warning light (7) on index plane.
5. demonstrate and use the digital versatile ammeter according to claim 1, it is characterized in that, described test function key (2) comprises DC voltage, DC current, resistance, alternating voltage, alternating current, diode break-make, temperature, data maintenance, triode, electric capacity, frequency, these buttons of inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445181XU CN203325303U (en) | 2013-07-23 | 2013-07-23 | Digital multipurpose electricity meter for demonstration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320445181XU CN203325303U (en) | 2013-07-23 | 2013-07-23 | Digital multipurpose electricity meter for demonstration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203325303U true CN203325303U (en) | 2013-12-04 |
Family
ID=49664620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320445181XU Expired - Fee Related CN203325303U (en) | 2013-07-23 | 2013-07-23 | Digital multipurpose electricity meter for demonstration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203325303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390363A (en) * | 2013-07-23 | 2013-11-13 | 湖州文思必得科教仪器有限公司 | Digital multi-purpose electric meter for demonstration |
-
2013
- 2013-07-23 CN CN201320445181XU patent/CN203325303U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103390363A (en) * | 2013-07-23 | 2013-11-13 | 湖州文思必得科教仪器有限公司 | Digital multi-purpose electric meter for demonstration |
| CN103390363B (en) * | 2013-07-23 | 2016-03-23 | 湖州文思必得科教仪器有限公司 | Demonstration digital multi-purpose electric meter |
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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: 20131204 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |