CN205670170U - A kind of voltage measuring apparatus - Google Patents
A kind of voltage measuring apparatus Download PDFInfo
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- CN205670170U CN205670170U CN201620525632.4U CN201620525632U CN205670170U CN 205670170 U CN205670170 U CN 205670170U CN 201620525632 U CN201620525632 U CN 201620525632U CN 205670170 U CN205670170 U CN 205670170U
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- test pencil
- red test
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- acquisition module
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Abstract
This utility model provides a kind of voltage measuring apparatus, including voltmeter body and measurement assembly；Measure assembly and include black meter pen, the first red test pencil and the second red test pencil；The outer surface of voltmeter body is provided with the first display screen, second display screen, shift knob, black meter pen jack, the first red test pencil jack and the second red test pencil jack；The inside of voltmeter body includes the first data acquisition module, the second data acquisition module and the single-chip microcomputer being connected with the first data acquisition module and the second data acquisition module；Single-chip microcomputer is connected with the first display screen, second display screen and shift knob respectively；First red test pencil jack and the first data acquisition module connect, and the second red test pencil jack and the second data acquisition module connect, and black meter pen jack and the first data acquisition module and the second data acquisition module connect.This utility model is by forming, at voltmeter body, the measurement loop that two sets are independent, and user can measure the upper/lower terminal voltage of testee simultaneously, improves and measures efficiency.
Description
Technical field
This utility model relates to power equipment fields of measurement, in particular to a kind of voltage measuring apparatus.
Background technology
Traditional needle dc voltmeter is all that the magnetic effect principle according to electric current is made, and electric current is the biggest, produced magnetic force
The biggest, the phenomenon that shows be exactly on voltmeter the amplitude of oscillation of pointer the biggest.The most also there is a kind of digital voltmeter, can be voltage
Table measurement to magnitude of voltage show in digital form.But both the above voltmeter is in use, as measured one
During the voltage-to-ground of two zoness of different of block protection pressing plate, it is required for measuring respectively the electricity over the ground in each region of protection pressing plate
Pressure, brings inconvenience to user, and service efficiency is relatively low.
Utility model content
The purpose of this utility model is to provide a kind of voltage measuring apparatus, and it can measure same testee two simultaneously
The voltage in individual region, improves the measurement efficiency of user.
This utility model embodiment provides a kind of voltage measuring apparatus, and it includes voltmeter body and measures assembly.Survey
Amount assembly includes black meter pen, the first red test pencil and the second red test pencil；The outer surface of above-mentioned voltmeter body is provided with the first display
Screen, second display screen, shift knob, black meter pen jack, the first red test pencil jack and the second red test pencil jack；Above-mentioned voltmeter is originally
The inside of body includes the first data acquisition module, the second data acquisition module and single-chip microcomputer, single-chip microcomputer and the first data acquisition
Module and the electrical connection of the second data acquisition module；Additionally, the outfan of single-chip microcomputer respectively with the first display screen and second display screen
Electrical connection, the first red test pencil jack and the electrical connection of the first data acquisition module, the second red test pencil jack and the second data acquisition module
Block electrically connects, black meter pen jack and the first data acquisition module and the electrical connection of the second data acquisition module.When the first red test pencil
Being inserted in the first red test pencil jack, the second red test pencil is inserted in the second red test pencil jack, when black meter pen is inserted in black meter pen jack,
First red test pencil, black meter pen, the first data acquisition module, single-chip microcomputer and the first display screen define the first measurement loop, the
Two red test pencils, black meter pen, the second data acquisition module, single-chip microcomputer and second display screen define the second measurement loop, and first
Measure loop and the second measurement loop separate.By the measurement loop that above-mentioned two sets are independent so that user can be simultaneously
Measure the voltage of zones of different on same equipment, improve the measurement efficiency of user.
In this utility model preferred embodiment, described black meter pen includes Handheld Division and measurement portion, described measurement portion
Being shaped as crocodile clip, the measurement portion of described crocodile clip is for being provided with sawtooth with Measuring Object contact surface.
In this utility model preferred embodiment, described first red test pencil and described second red test pencil include hand-held respectively
Portion and measurement portion, described measurement portion is shaped as crescent.
In this utility model preferred embodiment, the Handheld Division of described first red test pencil and described second red test pencil is respectively
It is provided with the screwed hole that position is corresponding, described first red test pencil and described second red test pencil to be connected by described screwed hole coupling.
In this utility model preferred embodiment, described first red test pencil and described second red test pencil include hand-held respectively
Portion and measurement portion, described measurement portion is shaped as crocodile clip, and the measurement portion of described crocodile clip is for contacting with Measuring Object
Face is provided with sawtooth.
In this utility model preferred embodiment, described voltmeter body outer surface is provided with sound play device, described
Sound play device electrically connects with the outfan of described single-chip microcomputer.
In this utility model preferred embodiment, described voltmeter body outer surface is provided with to press and can produce level change
Self-inspection button, described self-inspection button electrically connects with described single-chip microcomputer, so that detecting that described level changes when described single-chip microcomputer
After, make described first display screen and described second display screen enable, simultaneously drive described sound play device and send sound.
In this utility model preferred embodiment, described voltmeter body outer surface is provided with switch indication light, described in open
Close display lamp to electrically connect with described single-chip microcomputer.
In this utility model preferred embodiment, described first data acquisition module includes input, partial pressure unit, electricity
Pressure follows unit, voltage amplification unit and outfan；Connect with described input in described partial pressure unit one end, the other end and institute
Stating the series connection of voltage follow unit, connecting with described voltage follow unit in described voltage amplification unit one end, the other end is defeated with described
Go out end series connection.
In this utility model preferred embodiment, single-chip microcomputer is STM8 series.
This utility model embodiment provides the benefit that: the voltmeter body outer surface at described voltage measuring apparatus is arranged
There are the first display screen, second display screen, shift knob, black meter pen jack, the first red test pencil jack and the second red test pencil jack；On
The inside stating voltmeter body is provided with the first data acquisition module, the second data acquisition module and single-chip microcomputer, single-chip microcomputer and
One data acquisition module and the electrical connection of the second data acquisition module；Additionally, the outfan of single-chip microcomputer respectively with the first display screen and
Second display screen electrically connects, the first red test pencil jack and the electrical connection of the first data acquisition module, the second red test pencil jack and second
Data acquisition module electrically connects, black meter pen jack and the first data acquisition module and the electrical connection of the second data acquisition module.Work as handle
First red test pencil is inserted in the first red test pencil jack, and the second red test pencil is inserted in the second red test pencil jack, and black meter pen is inserted in black table
Time in penholder hole, the first red test pencil, black meter pen, the first data acquisition module, single-chip microcomputer and the first display screen define first
Measuring loop, the second red test pencil, black meter pen, the second data acquisition module, single-chip microcomputer and second display screen define the second survey
Amount loop, it is separate that loop is measured in the first measurement loop and second.By above-mentioned two sets independent measurement loop so that use
Person can measure the voltage of the zones of different on same equipment simultaneously, improves the measurement efficiency of user.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of this utility model embodiment, will use required in embodiment below
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiment of the present utility model, the most should be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, also may be used
To obtain other relevant accompanying drawings according to these accompanying drawings.
Fig. 1 is the structural representation of the voltmeter body of this utility model embodiment voltage measuring apparatus；
Fig. 2 is the structured flowchart of the circuit of the voltmeter body of this utility model embodiment voltage measuring apparatus；
Fig. 3 is the circuit diagram of the first data acquisition module of this utility model embodiment voltage measuring apparatus；
Fig. 4 is the black meter pen structural representation measuring assembly of this utility model embodiment voltage measuring apparatus；
Fig. 5 is the broached-tooth design figure of the black meter pen measuring assembly of this utility model embodiment voltage measuring apparatus
Fig. 6 is the first red test pencil structural representation measuring assembly of this utility model embodiment voltage measuring apparatus；
Fig. 7 be this utility model embodiment voltage measuring apparatus measure the first red test pencil of assembly and the second red test pencil is another
A kind of structural representation of embodiment；
Fig. 8 is the structural representation of the voltmeter body another embodiment of this utility model embodiment voltage measuring apparatus
Figure；
Fig. 9 is the knot of the circuit of the voltmeter body another embodiment of this utility model embodiment voltage measuring apparatus
Structure block diagram.
In figure:
Voltmeter body 200；
First display screen 201；Second display screen 202；Shift knob 203；Black meter pen jack 204；First red test pencil jack
205；Second red test pencil jack 206；First data acquisition module 207；Voltage follow unit 2071；Partial pressure unit 2072；Geometric ratio
Amplifying unit 2073；Second data acquisition module 208；Single-chip microcomputer 209；Sound play device 210；Self-inspection button 211；Switch refers to
Show lamp 212；
Black meter pen 310；Handheld Division 311；Measurement portion 312；Sawtooth 313；First red test pencil 320；First red test pencil Handheld Division
321；First red test pencil measurement portion 322；Second red test pencil 330；Two-in-one red test pencil 340；Two-in-one red test pencil twisting point 341.
Detailed description of the invention
For making the purpose of this utility model embodiment, technical scheme and advantage clearer, new below in conjunction with this practicality
Accompanying drawing in type embodiment, is clearly and completely described the technical scheme in this utility model embodiment, it is clear that retouched
The embodiment stated is a part of embodiment of this utility model rather than whole embodiments.Generally described in the accompanying drawing herein and
The assembly of this utility model embodiment illustrated can be arranged with various different configurations and design.
Therefore, below the detailed description of the embodiment of the present utility model provided in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in this utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, all
Belong to the scope of this utility model protection.
It should also be noted that similar label and letter represent similar terms, therefore, the most a certain Xiang Yi in following accompanying drawing
Individual accompanying drawing is defined, then need not it be defined further and explains in accompanying drawing subsequently.
In description of the present utility model, it should be noted that term " on ", D score, " level ", " interior ", " outward " etc. refer to
The orientation shown or position relationship are for based on orientation shown in the drawings or position relationship or used when this utility model product uses
The orientation often put or position relationship, be for only for ease of description this utility model and simplify description rather than instruction or hint
The device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to this
The restriction of utility model.Describe additionally, term " first ", " second " etc. are only used for distinguishing, and it is not intended that indicate or hint
Relative importance.
Additionally, the term such as term " level ", " vertically ", " pendency " is not offered as requiring parts abswolute level or pendency, and
It is to be slightly tilted.As " level " only refers to for its direction relatively " vertically " more level, it it is not this structure of expression
Must be perfectly level, but can be slightly tilted.
In description of the present utility model, in addition it is also necessary to explanation, unless otherwise clearly defined and limited, term " sets
Put ", should be interpreted broadly " installation ", " being connected ", " connection ", connect for example, it may be fixing, it is also possible to be to removably connect,
Or be integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to pass through intermediary
It is indirectly connected to, can be the connection of two element internals.For the ordinary skill in the art, can manage with concrete condition
Solve above-mentioned term concrete meaning in this utility model.
As it is shown in figure 1, this utility model embodiment provides a kind of voltage measuring apparatus, it includes voltmeter body 200 He
Measure assembly.Wherein, measuring assembly and be mainly used in gathering voltage signal, voltmeter body 200 is mainly for the treatment of measuring assembly
Carry out data again after two signals of telecommunication gathered to show.
Voltmeter body 200 includes being arranged on the first display screen 201 of voltmeter body 200 outer surface, second display screen
202, shift knob 203, black meter pen jack the 204, first red test pencil jack 205 and the second red test pencil jack 206.As in figure 2 it is shown,
Voltmeter body 200 is internally provided with the first data acquisition module the 207, second data acquisition module 208 and single-chip microcomputer 209.
Wherein, the first data acquisition module 207 is electric with black meter pen jack the 204, first red test pencil jack 205 and single-chip microcomputer 209 respectively
Connecting, the second data acquisition module 208 is electric with black meter pen jack the 204, second red test pencil jack 206 and single-chip microcomputer 209 respectively
Connect；Additionally, single-chip microcomputer 209 electrically connects with the first display screen 201 and second display screen 202 the most respectively.
Wherein, the first data acquisition module 207 is similar with the structure of the second data acquisition module 208, below with the first number
According to as a example by acquisition module 207, the two module is introduced.Refer to Fig. 3, the first data acquisition module 207 includes input
V+ and V-, voltage follow unit 2071, partial pressure unit 2072, geometric ratio amplifying unit 2073 and outfan OUT.Partial pressure unit
2072 one end electrically connect with input V+ and V-, and the other end is connected with voltage follow unit 2071, voltage amplification unit 2,073 1
End is connected with voltage follow unit 2071, and the other end is connected with outfan OUT.It is solid that voltage follow unit 2071 can produce 1.65V
Determine voltage；Partial pressure unit 2072 is connected by resistance R3 with R4 and is formed, and the resistance value ratio of R3/R4 is 1/152.When the first red test pencil
220 and the voltage (scope is-250V～+250V) that collects of black meter pen 210 input the first number through input V-and V+ two ends
After acquisition module 207, the voltage collected through partial pressure unit 2072 by dividing potential drop to-1.65V～+1.65V, the electricity after dividing potential drop
Laminated, plus the voltage amplification unit 2073 that 1.65V input amplification is 1, exports through outfan OUT.I.e. by input V-
Exported by outfan OUT by Scaling to 0～3.3V with-250V～the+250V voltage of the input of V+ two ends.
Single-chip microcomputer is a kind of IC chip, is to use very large scale integration technology having data-handling capacity
Central processing unit (CPU), random access memory (RAM), read only memory (ROM), multiple I/O mouth and interrupt system, intervalometer/
The functions such as enumerator (may also include the electricity such as display driver circuit, pulse-width modulation circuit, analog multiplexer, A/D converter
Road) it is integrated on one piece of silicon chip the little and perfect microcomputer system constituted, it is widely used in industrial control field.
In the present embodiment, the first data acquisition module 207 electrically connects with single-chip microcomputer 209.As a kind of mode, Ke Yizhi
Connected wire the OUT terminal mouth of the first data acquisition module 207 and the A/D thief hatch of single-chip microcomputer 209 to be connected.By above-mentioned electricity
Connecting, the analog voltage signal collected can be transferred to single-chip microcomputer 209 and carry out A/D conversion by the first data acquisition module 207,
It is ultimately converted to digital voltage signal.
As a kind of embodiment, this utility model embodiment single-chip microcomputer 209 is preferably the single-chip microcomputer of STM8 series.STM8
Series monolithic has 12 A/D translation interfaces, and therefore, single-chip microcomputer 209 can be by the 0-3.3V's that collects by A/D sampling
Analog voltage signal is converted to 0-4096 sampled point, and i.e. 1 sampled point represents 0.8mV voltage.According to the sampling number obtained,
Single-chip microcomputer 209 can be calculated the digital voltage value that the first data acquisition module 207 collects, and i.e. gathers voltage=(sampled point
Number * (3.3/4096)-1.65) * 152V.
After single-chip microcomputer 209 electrically connects with the first display screen 201 and second display screen 202 respectively, single-chip microcomputer 209 is to mould
Intend voltage signal and carry out sampling and being converted to the digital voltage value of correspondence, then the digital voltage value obtained is exported respectively to first
Display screen 201 and second display screen 202, make the first display screen 201 and second display screen 202 demonstrate corresponding digital voltage
Value.
Measure assembly in the present embodiment and include black meter pen the 310, first red test pencil 320 and the second red test pencil 330.When
During measuring voltage, black meter pen 310 is electrically connected with voltmeter body 200 by the black meter pen jack 204 in Fig. 1, and first
Red test pencil 320 is electrically connected with voltmeter body 200 by the first red test pencil jack 205 in Fig. 1, and the second red test pencil 330 passes through
The second red test pencil jack 206 in Fig. 1 electrically connects with voltmeter body 200.
Refer to Fig. 4, black meter pen 310 includes Handheld Division 311 and measurement portion 312.As a kind of embodiment, measurement portion
The shape of 312 can be alligator clamp formula, and the measurement portion 312 of crocodile clip is for being provided with sawtooth 313 with Measuring Object contact surface.Please
Show in terms of the A of Fig. 4 to the visual angle figure of sawtooth 313 with reference to Fig. 5, Fig. 5.When user manipulates black meter pen the 310, first red test pencil
320 and during the second red test pencil 330 Measuring Object voltage, sawtooth 313 is for contacting with object being measured, so that black meter pen 310
Measurement portion 312 can be fixed on object being measured, it is to avoid user needs to be fixed by black meter pen by the way of hand-held
On object being measured, so that user can concentrate at operation the first red test pencil 320 and the second red test pencil 330
On, simplify operating process.
Refer to Fig. 6, the first red test pencil 320 includes the first red test pencil Handheld Division 321 and the first red test pencil measurement portion 322,
As a kind of embodiment, the shape in the first red test pencil measurement portion 322 can be crescent.As another embodiment, the
The shape in one red test pencil measurement portion 322 is also designed to crocodile clip as shown in Figure 4, when the shape in the first red test pencil measurement portion 322
When shape can also be designed to crocodile clip as shown in Figure 4, the first red test pencil measurement portion 322 of crocodile clip is used for and measures thing
Contact level can also be provided with sawtooth.
Owing to the first red test pencil 320 is similar to shape with the structure of the second red test pencil 330, herein to the second red test pencil 330
Structure the most no longer make and too much repeating.
Refer to Fig. 7, as a kind of embodiment, the first red test pencil 320 and the second red test pencil 330 can be made into one
Two-in-one red test pencil 340, as a kind of embodiment, the Handheld Division of the first red test pencil 320 and the second red test pencil 330 is respectively provided with
There are the screwed hole that position is corresponding, the first red test pencil 320 and the second red test pencil 330 to be connected by described screwed hole coupling and form one
Two-in-one red test pencil 340, two-in-one red test pencil 340 has twisting point 341, and the most two-in-one test pencil is similar compasses structure, can lead to
Cross twisting point 341 to regulate the extent of opening of two-in-one test pencil, to meet the voltage measurement of multi-form object being measured.It is worth
Illustrate, although the profile of two-in-one red test pencil 340 can be unified, but the first red test pencil 320 being included therein and
The internal wiring of two red test pencils 330 is all to isolate each other and shield well.
When during measuring, the first red test pencil 320 can be inserted in the first red test pencil jack 205, the second red test pencil
330 are inserted in the second red test pencil jack 206, and black meter pen 310 is inserted in black meter pen jack 204.First red test pencil 320, black meter pen
310, the first data acquisition module 207, single-chip microcomputer 209 and the first display screen 201 define the first measurement loop.Second red table
Pen 330, black meter pen the 310, second data acquisition module 208, single-chip microcomputer 209 and second display screen 202 define the second measurement
Loop, it is separate that loop is measured in the first measurement loop and second.
Refer to Fig. 8, as a kind of embodiment, voltmeter body 200 outer surface is also provided with sound and plays dress
Putting 210, refer to Fig. 9, sound play device 210 electrically connects with the outfan of single-chip microcomputer 209, and single-chip microcomputer 209 can drive sound
Sound playing device 210 reports voice.The setting of sound play device 210 makes voltage measuring apparatus have voice broadcast function,
Digital voltage value on voice broadcast the first display screen 201 and second display screen 202, survey crew can be play according to sound
The voice broadcast of device 210, from the magnitude of voltage numerical value that acoustically perception voltage measuring apparatus is measured, reduces and misreads probability.
When after arranging sound play device 210, as a kind of embodiment, described single-chip microcomputer 209, it is also possible to for right
The first magnitude of voltage collected than the first red test pencil 320 and black meter pen 310 and the second red test pencil 330 and black meter pen 310 gather
The second magnitude of voltage arrived, obtains voltage difference；When judging that described voltage difference, not in predeterminated voltage difference value range, drives described
Sound play device 210 sends alarm.
Refer to Fig. 8, as a kind of embodiment, voltmeter body 200 outer surface is additionally provided with presses generation level change
Self-inspection button 211.Self-inspection button 211 electrically connects with the single-chip microcomputer 209 being arranged within voltmeter body 200, so that when single
After sheet machine 209 detects the level change of the port electrically connected with described self-inspection button 211, make the first display screen 201 and second
Display screen 202 enables, and simultaneously drives sound play device 210 and sends sound.First display screen 201 and second display screen 202 make
Can show as, after pressing self-inspection button 211, each of the first display screen 201 and second display screen 202 all starts to take turns aobvious numeral
" 8 ", meanwhile, the outfan of single-chip microcomputer controls sound play device 210 output such as voices such as " self-inspection complete ".Thus, it is possible to inspection
The function surveying the first display screen 201, second display screen 202 and sound play device 210 is the most normal.
Refer to Fig. 8, as a kind of embodiment, voltmeter body 200 outer surface is additionally provided with switch indication light 212.Please
Referring to Fig. 9, switch indication light 212 electrically connects with the single-chip microcomputer 209 being arranged within voltmeter body 200.When open switch by
After button 203, single-chip microcomputer 209 is in power-up state, and lights switch indication light 212, facilitates user to know voltage measuring apparatus
The most in running order.
In sum, the measurement assembly that this utility model embodiment provides includes voltmeter body 200 and measures assembly, surveys
Amount assembly includes black meter pen the 310, first red test pencil 320 and the second red test pencil 330；Voltmeter body 200 includes being arranged on voltage
First display screen 201 of table body 200 outer surface, second display screen 202, shift knob 203, black meter pen jack 204, first are red
Test pencil jack 205 and the second red test pencil jack 206 and be arranged on the first data acquisition module within voltmeter body 200
207, the second data acquisition module 208 and single-chip microcomputer 209.Wherein, first data acquisition module 207 one end connection black meter pen is inserted
Hole 204 and the first red test pencil jack 205, the other end and single-chip microcomputer 209 electrically connect, and second data acquisition module 208 one end connects
Black meter pen jack 204 and the second red test pencil jack 206, the other end and single-chip microcomputer 209 electrically connect；Additionally, single-chip microcomputer 209 is also distinguished
Electrically connect with the first display screen 201 and second display screen 202.When the first red test pencil 320 is inserted in the first red test pencil jack 205
In, the second red test pencil 330 is inserted in the second red test pencil jack 206, and when black meter pen 310 is inserted in black meter pen jack 204, first is red
Test pencil 320, black meter pen the 310, first data acquisition module 207, single-chip microcomputer 209 and the first display screen 201 define the first survey
Amount loop, the second red test pencil 330, black meter pen the 310, second data acquisition module 208, single-chip microcomputer 209 and second display screen 202
Defining the second measurement loop, it is separate that loop is measured in the first measurement loop and second.By the survey that two above-mentioned sets are independent
Amount loop so that user can measure the voltage of the zones of different on same equipment simultaneously, improves the measurement effect of user
Rate.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for this
For the technical staff in field, this utility model can have various modifications and variations.All in spirit of the present utility model and principle
Within, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (10)
1. a voltage measuring apparatus, it is characterised in that include voltmeter body and measure assembly；Described measurement assembly includes black
Test pencil, the first red test pencil and the second red test pencil；The outer surface of described voltmeter body is provided with the first display screen, the second display
Screen, shift knob, black meter pen jack, the first red test pencil jack and the second red test pencil jack；The inside bag of described voltmeter body
Include the first data acquisition module, the second data acquisition module and with described first data acquisition module and described second data acquisition
The single-chip microcomputer of collection module electrical connection；Described single-chip microcomputer respectively with described first display screen, described second display screen and described in open
Pass button electrical connection, described first red test pencil jack electrically connects with described first data acquisition module, and described second red test pencil is inserted
Hole electrically connects with described second data acquisition module, described black meter pen jack and described first data acquisition module and described second
Data acquisition module electrically connects.
Voltage measuring apparatus the most according to claim 1, it is characterised in that described black meter pen includes Handheld Division and measurement
Portion, described measurement portion is shaped as crocodile clip, and the measurement portion of described crocodile clip is for being provided with saw with Measuring Object contact surface
Tooth.
Voltage measuring apparatus the most according to claim 1, it is characterised in that described first red test pencil and described second red table
Pen includes Handheld Division and measurement portion respectively, and described measurement portion is shaped as crescent.
Voltage measuring apparatus the most according to claim 3, it is characterised in that described first red test pencil and described second red table
The Handheld Division of pen is respectively arranged with the screwed hole that position is corresponding, described first red test pencil and described second red test pencil by described spiral shell
Pit coupling connects.
Voltage measuring apparatus the most according to claim 1, it is characterised in that described first red test pencil and described second red table
Pen includes Handheld Division and measurement portion respectively, and described measurement portion is shaped as crocodile clip, and the measurement portion of described crocodile clip is used for
It is provided with sawtooth with Measuring Object contact surface.
Voltage measuring apparatus the most according to claim 1, it is characterised in that described voltmeter body outer surface is provided with sound
Playing device, described sound play device electrically connects with the outfan of described single-chip microcomputer.
Voltage measuring apparatus the most according to claim 6, it is characterised in that described voltmeter body outer surface be provided with by
Can produce down the self-inspection button of level change, described self-inspection button electrically connects with described single-chip microcomputer, so that when described monolithic machine examination
After measuring the change of described level, make described first display screen and described second display screen enable, simultaneously drive described sound and play
Device sends sound.
Voltage measuring apparatus the most according to claim 7, it is characterised in that described voltmeter body outer surface is provided with switch
Display lamp, described switch indication light electrically connects with described single-chip microcomputer.
Voltage measuring apparatus the most according to claim 1, it is characterised in that described first data acquisition module includes input
End, partial pressure unit, voltage follow unit, voltage amplification unit and outfan；Described partial pressure unit one end and described input
Connecting, the other end is connected with described voltage follow unit, connects with described voltage follow unit in described voltage amplification unit one end,
The other end is connected with described outfan.
Voltage measuring apparatus the most according to claim 1, it is characterised in that described single-chip microcomputer is STM8 series.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620525632.4U CN205670170U (en) | 2016-06-02 | 2016-06-02 | A kind of voltage measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620525632.4U CN205670170U (en) | 2016-06-02 | 2016-06-02 | A kind of voltage measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205670170U true CN205670170U (en) | 2016-11-02 |
Family
ID=57193406
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620525632.4U Active CN205670170U (en) | 2016-06-02 | 2016-06-02 | A kind of voltage measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205670170U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974186A (en) * | 2016-06-02 | 2016-09-28 | 中国南方电网有限责任公司超高压输电公司昆明局 | Voltage measuring device |
| CN113534651A (en) * | 2021-07-28 | 2021-10-22 | 广东电网有限责任公司东莞供电局 | Intelligent watch for measuring voltage |
-
2016
- 2016-06-02 CN CN201620525632.4U patent/CN205670170U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974186A (en) * | 2016-06-02 | 2016-09-28 | 中国南方电网有限责任公司超高压输电公司昆明局 | Voltage measuring device |
| CN113534651A (en) * | 2021-07-28 | 2021-10-22 | 广东电网有限责任公司东莞供电局 | Intelligent watch for measuring voltage |
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