CN207317906U - A kind of high-precision electronic scale - Google Patents
A kind of high-precision electronic scale Download PDFInfo
- Publication number
- CN207317906U CN207317906U CN201721091048.3U CN201721091048U CN207317906U CN 207317906 U CN207317906 U CN 207317906U CN 201721091048 U CN201721091048 U CN 201721091048U CN 207317906 U CN207317906 U CN 207317906U
- Authority
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- China
- Prior art keywords
- shell
- electronic scale
- placement plate
- precision electronic
- base
- 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
Links
- 238000005303 weighing Methods 0.000 claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims abstract description 11
- 230000003321 amplification Effects 0.000 claims description 15
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 15
- 238000006243 chemical reaction Methods 0.000 claims description 14
- 230000011664 signaling Effects 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000004078 waterproofing Methods 0.000 description 2
- 230000005483 Hooke's law Effects 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of high-precision electronic scale,Including base and shell,The shell is fixedly connected with base upper surface,Weighing device is provided with by fixed plate at the upper surface of outer cover center,The weighing device includes pressure sensor,Supporting rod,Placement plate and baffle,The placement plate bottom surface is provided with three supporting rods,Three supporting rod bottoms are provided with three pressure sensors,The placement plate surrounding is fixedly connected with baffle,The baffle top is threaded with protective cover,The protective cover upper surface is provided with handle at center,Control device is installed at the enclosure bottom center,Inner wall bottom is mounted on voice announcer at left and right sides of the shell,Display screen is installed in the middle part of the outer casing frontispiece,Button is installed on the right side of the display screen,Power supply is installed at the chassis interior bottom center,The high-precision electronic scale is easy to operate,Accuracy is high,With very strong practicality.
Description
Technical field
The utility model belongs to weighing-apparatus tool technical field of weighing, and in particular to a kind of high-precision electronic scale.
Background technology
With the application and development of microelectric technique, in order to change, traditional weighing utilities are existing in use to ask people
Topic, devises innovative electronic scale of all kinds.Electronic scale is not only the necessity in people's life, is also applied at the same time
In industrial production.Electronic scale, belongs to one kind of weighing apparatus, is to utilize Hooke's law or the lever balance theory of power measure mass of object
Instrument.Electronic scale is mainly by load bearing system (such as scale pan, scale body), power transmission converting system (such as lever transmission system, sensor)
Formed with indicating value system (such as dial, electronic display meter) 3 parts.Due to the continuous change of application environment, the essence of electronic scale
Degree requirement is also higher and higher, and traditional electronic scale is increasingly unsatisfactory for the demand of people.
Existing electronic scale generally weighs the weight of measured object, is all that directly measured object is placed on pallet to measure,
Sometimes measured object slant setting, the data detected by pressure sensor will have error, and precision is low, can not meet to be precisely weighed
Demand, therefore devise a kind of high-precision electronic scale, the high-precision electronic scale is easy to operate, and accuracy is high, has very strong
Practicality.
Utility model content
The purpose of this utility model is to provide a kind of high-precision electronic scale, to solve proposed in the above background technology ask
Topic.
To achieve the above object, the utility model provides following technical solution：A kind of high-precision electronic scale, including base and
Shell, the shell are fixedly connected with base upper surface, and dress of weighing is provided with by fixed plate at the upper surface of outer cover center
Put, the weighing device includes pressure sensor, supporting rod, placement plate and baffle, and the placement plate bottom surface is provided with three branch
Strut, three supporting rod bottoms are provided with three pressure sensors, and the placement plate surrounding is fixedly connected with baffle, described
Baffle top is threaded with protective cover, is provided with handle at the center of the protective cover upper surface, in the enclosure bottom surface
Control device is installed, the control device includes FPGA, signaling conversion circuit and signal amplification circuit, and the signal is put at the heart
Big circuit is electrically connected by conducting wire and pressure sensor, and the signal amplification circuit is electrical with signaling conversion circuit by conducting wire
Connection, the signaling conversion circuit are electrically connected by conducting wire and FPGA, and inner wall bottom is mounted at left and right sides of the shell
Voice announcer, the outer casing frontispiece middle part are provided with display screen, button, the chassis interior are provided with the right side of the display screen
Power supply is installed at bottom center.
Preferably, the base end face is provided with beam, and is provided with charging socket in power supply and base junction.
Preferably, the equal through connection in bottom has loudspeaker at left and right sides of the shell, and the loudspeaker are broadcast by conducting wire and voice
Device is reported to be electrically connected.
Preferably, three apexes of equilateral triangle, and three are inscribed installed in placement plate bottom surface in three supporting bar tops
A supporting rod is with upper surface of outer cover into 60 degree of angles.
Preferably, the signaling conversion circuit uses middling speed A/D converter, and the signal amplification circuit uses INA126 cores
Piece.
The technique effect and advantage of the utility model：The high-precision electronic scale, measurement process can be ensured by protective cover
In from external environment interference, measurement it is more accurate, equilateral triangle three is inscribed installed in placement plate bottom surface in supporting bar top
A apex, and three supporting rods are placed in placement plate with upper surface of outer cover into 60 degree of angles, measured object, placement plate stress is more
Uniformly, easy to the measurement of pressure sensor, measured object is detected by three pressure sensors, then control device logarithm
According to computing is carried out, the measurement of error smaller can be more accurate, and the high-precision electronic scale is easy to operate, and accuracy is high, has very strong
Practicality.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structure diagram of weighing device in the utility model；
Fig. 3 is the circuit modular structure figure of the utility model.
In figure：1 base, 2 shells, 3 weighing devices, 31 pressure sensors, 32 supporting rods, 33 placement plates, 34 baffles, 4 are prevented
Shield, 5 control devices, 51FPGA, 52 signaling conversion circuits, 53 signal amplification circuits, 6 voice announcers, 7 display screens, 8 are pressed
Key, 9 power supplys, 10 handles, 11 fixed plates.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, a kind of high-precision electronic scale provided by the utility model, including base 1 and shell 2, the base 1
Bottom surface is provided with beam, and the abrasion of base 1 can be reduced by rubber pad, and the shell 2 is fixed with 1 upper surface of base to be connected
Connect, weighing device 3 is provided with by fixed plate 11 at the 2 upper surface center of shell, 3 top of weighing device is threadedly coupled
There is protective cover 4, can be ensured in measurement process from the interference of external environment by protective cover 4, in 4 upper surface of protective cover
Handle 10 is installed at the heart, control device 5 is installed at the 2 inner bottom surface center of shell, the control device 5 includes
FPGA51, signaling conversion circuit 52 and signal amplification circuit 53, the signal amplification circuit 53 pass through conducting wire and pressure sensor
31 are electrically connected, and the signal amplification circuit 53 is electrically connected by conducting wire and signaling conversion circuit 52, the signal conversion electricity
Road 52 is electrically connected by conducting wire and FPGA51, and the signaling conversion circuit 52 uses middling speed A/D converter, the signal amplification
Circuit 53 uses INA126 chips, and 2 left and right sides inner wall bottom of shell is mounted on voice announcer 6, and the shell 2 is left
The right equal through connection in both sides bottom has loudspeaker, and the 2 positive Middle face of shell is provided with display screen 7, the right side of display screen 7 installation
There is button 8, the button 8 is noiseless button, and is bonded with waterproofing membrane outside button 8, be can be very good by waterproofing membrane
Protect button 8, can be also continuing with rainy day, power supply 9 is installed at the 1 inner bottom surface center of base, and power supply 9 with
1 junction of base is provided with charging socket.
Please refer to Fig.1 and structure diagram that Fig. 2, Fig. 2 are weighing device in the utility model, the weighing device 3 wraps
Pressure sensor 31, supporting rod 32, placement plate 33 and baffle 34 are included, 33 bottom surface of placement plate is provided with three supporting rods 32,
Three 32 bottoms of supporting rod are provided with three pressure sensors 31, and the pressure sensor 31 senses for resistance-strain type
Three apexes of equilateral triangle, and three supporting rods are inscribed installed in 33 bottom surface of placement plate in device, three 32 tops of supporting rod
32 are placed in placement plate 33 with 2 upper surface of shell into 60 degree of angles, measured object, and placement plate 33 is more uniformly stressed, easy to pressure
The measurement of sensor 31, is detected measured object by three pressure sensors 31, and the measurement of error smaller can more accurate, institute
State 33 surrounding of placement plate and be fixedly connected with baffle 34.
Please refer to Fig.1 and Fig. 3, the circuit modular structure schematic diagram of the utility model, including pressure sensor 31, control fill
5, voice announcer 6, display screen 7, button 8 and power supply 9 are put, the power supply 9 is electrically connected by conducting wire and control device 5, institute
Control device 5 is stated to be electrically connected by conducting wire and pressure sensor 31, voice announcer 6 and display screen 7, and pressure sensor
3rd, voice announcer 6 and display screen 7 are electrically connected by conducting wire and power supply 9, and the power supply 9 is electrical by conducting wire and button 8
Connection, the button 8 are electrically connected by conducting wire and display screen 7, and when object is placed on weighing device 3, pressure is transmitted to pressure
Sensor 31, which deforms upon, so that impedance changes, while is changed using driving voltage,
The analog signal of one change of output, the signal are output to signaling conversion circuit 52 through the amplification of signal amplification circuit 53, are converted into
FPGA51 is output to easy to the digital signal of processing, is passed to by computing and then data on display screen 7, and use voice announcer
6 broadcast, and a deep step computing can also be carried out by button 8.
Operation principle：Operation program is input in FPGA51 first, protective cover 4 is opened by handle 10, measured object
It is placed in placement plate 33, pressure is transmitted to pressure sensor 31, which deforms upon, so that impedance becomes
Change, while changed using driving voltage, export the analog signal of a change, which amplifies through signal amplification circuit 53
Signaling conversion circuit 52 is output to, is converted into being output to FPGA51 easy to the digital signal of processing, by computing and then data
Pass on display screen 7, and broadcasted with voice announcer 6, computing can also be carried out by button 8.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic
Equivalent substitution is carried out, where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (5)
1. a kind of high-precision electronic scale, including base (1) and shell (2), it is characterised in that：On the shell (2) and base (1)
Surface is fixedly connected, and weighing device (3) is provided with by fixed plate (11) at shell (2) the upper surface center, described to weigh
Device (3) includes pressure sensor (31), supporting rod (32), placement plate (33) and baffle (34), placement plate (33) bottom surface
Three supporting rods (32) are installed, three supporting rod (32) bottoms are provided with three pressure sensors (31), the placement
Plate (33) surrounding is fixedly connected with baffle (34), and baffle (34) top is threaded with protective cover (4), the protective cover
(4) handle (10) is installed at the center of upper surface, control device (5) is installed at shell (2) the inner bottom surface center, it is described
Control device (5) includes FPGA (51), signaling conversion circuit (52) and signal amplification circuit (53), the signal amplification circuit
(53) it is electrically connected by conducting wire and pressure sensor (31), the signal amplification circuit (53) changes electricity by conducting wire and signal
Road (52) is electrically connected, and the signaling conversion circuit (52) is electrically connected by conducting wire and FPGA (51), shell (2) left and right
Both sides inner wall bottom is mounted on voice announcer (6), and the positive Middle face of the shell (2) is provided with display screen (7), the display
Button (8) is installed on the right side of screen (7), power supply (9) is installed at base (1) the inner bottom surface center.
2. high-precision electronic scale according to claim 1, it is characterised in that：Base (1) bottom surface is provided with beam,
And charging socket is installed in power supply (9) and base (1) junction.
3. high-precision electronic scale according to claim 1, it is characterised in that：Bottom is passed through at left and right sides of the shell (2)
Lead to and be connected to loudspeaker, the loudspeaker are electrically connected by conducting wire and voice announcer (6).
4. high-precision electronic scale according to claim 1, it is characterised in that：Three supporting rod (32) tops are installed on
Three apexes of equilateral triangle are inscribed in placement plate (33) bottom surface, and three supporting rods (32) and shell (2) upper surface are into 60 degree
Angle.
5. high-precision electronic scale according to claim 1, it is characterised in that：The signaling conversion circuit (52) uses middling speed
A/D converter, the signal amplification circuit (53) use INA126 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091048.3U CN207317906U (en) | 2017-08-29 | 2017-08-29 | A kind of high-precision electronic scale |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721091048.3U CN207317906U (en) | 2017-08-29 | 2017-08-29 | A kind of high-precision electronic scale |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207317906U true CN207317906U (en) | 2018-05-04 |
Family
ID=62432356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721091048.3U Expired - Fee Related CN207317906U (en) | 2017-08-29 | 2017-08-29 | A kind of high-precision electronic scale |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207317906U (en) |
-
2017
- 2017-08-29 CN CN201721091048.3U patent/CN207317906U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180504 |