CN110426113A - A kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor - Google Patents
A kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor Download PDFInfo
- Publication number
- CN110426113A CN110426113A CN201910665540.4A CN201910665540A CN110426113A CN 110426113 A CN110426113 A CN 110426113A CN 201910665540 A CN201910665540 A CN 201910665540A CN 110426113 A CN110426113 A CN 110426113A
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- Prior art keywords
- triode
- resistance
- capacitor
- diode
- emitter
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- 238000005303 weighing Methods 0.000 title claims abstract description 18
- 230000003321 amplification Effects 0.000 title claims abstract description 14
- 238000003199 nucleic acid amplification method Methods 0.000 title claims abstract description 14
- 239000003990 capacitor Substances 0.000 claims abstract description 30
- 229910000691 Re alloy Inorganic materials 0.000 claims abstract description 6
- DECCZIUVGMLHKQ-UHFFFAOYSA-N rhenium tungsten Chemical compound [W].[Re] DECCZIUVGMLHKQ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 230000005611 electricity Effects 0.000 claims 1
- 230000010355 oscillation Effects 0.000 abstract description 9
- 230000005540 biological transmission Effects 0.000 abstract description 5
- QJVKUMXDEUEQLH-UHFFFAOYSA-N [B].[Fe].[Nd] Chemical compound [B].[Fe].[Nd] QJVKUMXDEUEQLH-UHFFFAOYSA-N 0.000 abstract description 3
- 238000005520 cutting process Methods 0.000 abstract description 3
- 230000006698 induction Effects 0.000 abstract description 3
- 229910001172 neodymium magnet Inorganic materials 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 2
- 238000013016 damping Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000010365 information processing Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
- G01G19/02—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles
- G01G19/021—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing wheeled or rolling bodies, e.g. vehicles having electrical weight-sensitive devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/04—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements with semiconductor devices only
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
The invention discloses a kind of pre-amplification circuits of lorry weighing apparatus frequency modulated information processor, it is related to equalizer technology field, including multiple resistance, capacitor, diode, triode and slide rheostat, vibratory string, permanent magnet, the present invention can reduce the output impedance of preamplifier by the emitter output of triode, enhance remote transmittability, using neodymium iron boron high intensity permanent magnet, magnetic induction intensity in magnetic gap is set to become larger, the diameter that is applied is small, the high tungsten rhenium alloy wire of tensile strength does vibratory string, in vibratory string normal oscillation, the potential difference at its both ends can reach a millivolt magnitude, consequently facilitating subsequent amplification and transmission, the electric signal that the present invention can also be such that vibratory string generates when cutting magnetic force maintains self-sustained oscillation state and gets rid of the generation of high-frequency self-excitation oscillation.
Description
Technical field
The present invention relates to equalizer technology field, specially a kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor.
Background technique
Electronic scale is for chemical industry, commerical ready-mixed concrete, logistics, harbour, harbour, factories and miness, businessman etc. for bulk supply tariff
The main weighing-appliance of metering, common truck scale is usually to utilize the purely mechanic structure of lever principle before the twentieth century eighties
The mechanical automobile weighing apparatus made, also referred to as mechanical weighbridge, and present electronic scale is by digital weighing sensor and digital
The information processing system for lorry weighing apparatus of the all-electronin modularization truck scale of Weighing display device Combination Design, the prior art is main
It is the resistance strain gauge of Shanghai City production, it is pressed big Loop Carrier bandpass filter by Wheatstone bridge imbalance bridge and is adjusted back
Road, display composition, the indicating value of this deformeter easily generate error because of the impedance of transmission line and the variation of ambient temperature and humidity,
It is unsuitable for carrying out data processing to outdoor weighing apparatus, in addition to this, the signal of the anti-Wheatstone bridge formula lorry weighing apparatus output of traditional resistor
Amplitude it is related to lorry weight, be amplitude modulation shape electric wave, therefore its signal because transmission range, ambient temperature and humidity, noise influence due to
Distortion leads to the reduction of measuring system entirety confidence level.
Summary of the invention
In order to solve the above technical problems, the object of the present invention is to provide a kind of preceding storings of lorry weighing apparatus frequency modulated information processor
Big circuit.
The purpose of the present invention is be achieved through the following technical solutions: a kind of preceding storing of lorry weighing apparatus frequency modulated information processor
Big circuit, including first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6,
7th resistance R7, the 8th resistance R8, slide rheostat R, first capacitor C1, the second capacitor C2, third capacitor C3, the 4th capacitor
C4, the first triode T1, the second triode T2, third transistor T3, first diode D1, the second diode D2, output port
Out, power output end Vc, vibratory string 1, permanent magnet 2；
The power output end Vc is connected with the anode of the second diode D2, the cathode of the second diode D2 according to
The secondary collector with the third transistor T3, one end of the 5th resistance R5, one end of the 4th resistance R4, first resistor R1 one
End is connected, and the emitter of the third transistor T3 is connected by the 8th resistance R8 with the output port out, and the described 3rd 3
The emitter of pole pipe T3 is grounded by the 7th resistance R7, the other end and the third transistor T3 of the 5th resistance R5
Base stage be connected, by the 6th resistance R6 ground connection, the 4th resistance R4's is another for the base stage of the third transistor T3
End connect with the collector of the second triode T2, the collector of the second triode T2 pass through the 4th capacitor C4 and
The base stage of the third transistor T3 is connected, and the emitter of the second triode T2 is grounded by the 3rd resistor R3, institute
The other end for stating first resistor R1 is connected with the base stage of the collector of the first triode T1 and the second triode T2, institute
The emitter for stating the first triode T1 is connected by the slide rheostat R with one end of the third capacitor C3, the third
The other end of capacitor C3 is connected with the emitter of the second triode T2, the emitter of the first triode T1 and the vibration
One end of string 1 connects, and the other end of the vibratory string 1 passes through magnetic gap and the ground connection of the permanent magnet 2, first triode
The collector of T1 is connected by the first capacitor C1 with the base stage of the first triode T1, the base of the first triode T1
Pole is connected by the second resistance R2 with the emitter of the second triode T2, and the base stage of the first triode T1 passes through
Second capacitor C2 ground connection, the base stage of the first triode T1 are connected with the cathode of the first diode D1, and described the
The plus earth of one diode D1.
In preferred embodiments, the permanent magnet 2 is ndfeb magnet, and the permanent magnet 2 includes the pole N, S
Pole, magnetic gap ground connection of the vibratory string 1 across the pole N, the pole S.
In preferred embodiments, the vibratory string 1 uses tungsten rhenium alloy wire.
In preferred embodiments, the model 2CK20 of the first diode D1, the second diode D2.
The invention has the benefit that
The present invention makes vibratory string that the damping in damping and mechanics electrically be overcome to exist by the design to pre-amplification circuit
The electric signal generated when cutting magnetic force maintains self-sustained oscillation state, and can get rid of the generation of high-frequency self-excitation oscillation；
The present invention uses neodymium iron boron high intensity permanent magnet, so that magnetic induction intensity in magnetic gap is become larger, be applied diameter
Tungsten-rhenium alloy small, that tensile strength is high does vibratory string, and in vibratory string normal oscillation, the potential difference at both ends can reach a millivolt magnitude,
Consequently facilitating subsequent amplification and transmission；
The present invention is exported using the emitter of triode, can reduce the output impedance of preamplifier, to make instrument
Under engineering site and field condition, it is ensured that even if transfer wire reaches one kilometer, can also work normally.
Detailed description of the invention
Below according to attached drawing, invention is further described in detail.
Fig. 1 is that a kind of circuit of the pre-amplification circuit of the weighing apparatus frequency modulated information processor of lorry described in the embodiment of the present invention shows
It is intended to；
In figure:
1, vibratory string；2, permanent magnet.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.Therefore, below to the reality of the invention provided in the accompanying drawings
The detailed description for applying example is not intended to limit the range of claimed invention, but is merely representative of selected implementation of the invention
Example.Based on the embodiments of the present invention, obtained by those of ordinary skill in the art without making creative efforts
Every other embodiment, shall fall within the protection scope of the present invention.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The present invention is further illustrated with specific embodiment below with reference to accompanying drawings.
As shown in Figure 1, a kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor of the embodiment of the present invention, including the
One resistance R1, second resistance R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7,
Eight resistance R8, slide rheostat R, first capacitor C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4, the first triode
T1, the second triode T2, third transistor T3, first diode D1, the second diode D2, output port out, power output end
Vc, vibratory string 1, permanent magnet 2；
Power output end Vc is connected with the anode of the second diode D2, the cathode of the second diode D2 successively with the three or three pole
The collector of pipe T3, one end of the 5th resistance R5, one end of the 4th resistance R4, one end of first resistor R1 are connected, the three or three pole
The emitter of pipe T3 is connected by the 8th resistance R8 with output port out, and the emitter of third transistor T3 passes through the described 7th
Resistance R7 ground connection, the other end of the 5th resistance R5 are connected with the base stage of third transistor T3, and the base stage of third transistor T3 passes through
6th resistance R6 ground connection, the other end of the 4th resistance R4 are connect with the collector of the second triode T2, the collection of the second triode T2
Electrode is connected by the 4th capacitor C4 with the base stage of third transistor T3, and the emitter of the second triode T2 passes through 3rd resistor R3
Ground connection, the other end of first resistor R1 are connected with the base stage of the collector of the first triode T1 and the second triode T2, and the one or three
The emitter of pole pipe T1 is connected by slide rheostat R with one end of third capacitor C3, the other end and second of third capacitor C3
The emitter of triode T2 is connected, and the emitter of the first triode T1 is connect with one end of vibratory string 1, and the other end of vibratory string 1 passes through
The magnetic gap and ground connection, the collector of the first triode T1 of permanent magnet 2 pass through the base of first capacitor C1 and the first triode T1
Extremely it is connected, the base stage of the first triode T1 is connected by second resistance R2 with the emitter of the second triode T2, the first triode
The base stage of T1 is grounded by the second capacitor C2, and the base stage of the first triode T1 is connected with the cathode of first diode D1, and the one or two
The plus earth of pole pipe D1.
In specific embodiment, the permanent magnet 2 is ndfeb magnet, and the permanent magnet 2 includes the pole N, the pole S, N
Pole, the pole S are the pole tips made of permanent magnet and pure iron, and magnetic gap of the vibratory string 1 across the pole N, the pole S connects
Ground.
In specific embodiment, the vibratory string 1 uses tungsten rhenium alloy wire.
In specific embodiment, the model 2CK20 of the first diode D1, the second diode D2.
Working principle:
The 3rd resistor that the present invention connects the emitter of the second triode T2 by slide rheostat R, third capacitor C3
The voltage of R3 does positive feedback to the vibratory string connected below the emitter of the first triode T1, and vibratory string is enable to overcome resistance electrically
The electric signal generated when cutting magnetic force is maintained self-sustained oscillation state by the damping on Buddhist nun and mechanics；
The collector of first triode T1 is connect with base stage by first capacitor C1 by the present invention, and with second resistance R2 handle
The emitter of second triode T2 is connected with the base stage of the first triode T1, to reach the mesh getting rid of high-frequency self-excitation oscillation and occurring
's；
The present invention uses neodymium iron boron high intensity permanent magnet, so that magnetic induction intensity in magnetic gap is become larger, be applied diameter
Small, the high tungsten rhenium alloy wire of tensile strength does vibratory string, and when making vibratory string normal oscillation, the potential difference at both ends can reach millivolt amount
Grade, consequently facilitating subsequent amplification and transmission；
The present invention is exported using the emitter of third transistor T3, can reduce the output impedance of preamplifier, thus
Make instrument under engineering site and field condition, it is ensured that even if transfer wire reaches one kilometer, can also work normally.
Finally, it should be noted that above-described embodiments are merely to illustrate the technical scheme, rather than to it
Limitation；Although the present invention is described in detail referring to the foregoing embodiments, those skilled in the art should understand that:
It can still modify to technical solution documented by previous embodiment, or to part of or all technical features into
Row equivalent replacement；And these modifications or substitutions, it does not separate the essence of the corresponding technical solution various embodiments of the present invention technical side
The range of case.
Claims (4)
1. a kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor, it is characterised in that: including first resistor R1, the second electricity
Hinder R2,3rd resistor R3, the 4th resistance R4, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, sliding change
Hinder device R, first capacitor C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4, the first triode T1, the second triode T2,
It is third transistor T3, first diode D1, the second diode D2, output port out, power output end Vc, vibratory string (1), permanent
Magnet (2)；
The power output end Vc is connected with the anode of the second diode D2, the cathode of the second diode D2 successively with
The collector of the third transistor T3, one end of the 5th resistance R5, one end of the 4th resistance R4, first resistor R1 one end phase
Even, the emitter of the third transistor T3 is connected by the 8th resistance R8 with the output port out, the third transistor
The emitter of T3 is grounded by the 7th resistance R7, the other end of the 5th resistance R5 and the base of the third transistor T3
Extremely be connected, the base stage of the third transistor T3 is grounded by the 6th resistance R6, the other end of the 4th resistance R4 and
The collector of the second triode T2 connects, the collector of the second triode T2 by the 4th capacitor C4 with it is described
The base stage of third transistor T3 is connected, and the emitter of the second triode T2 is grounded by the 3rd resistor R3, and described the
The other end of one resistance R1 is connected with the base stage of the collector of the first triode T1 and the second triode T2, and described
The emitter of one triode T1 is connected by the slide rheostat R with one end of the third capacitor C3, the third capacitor
The other end of C3 is connected with the emitter of the second triode T2, the emitter and the vibratory string of the first triode T1
(1) one end connection, magnetic gap and ground connection of the other end of the vibratory string (1) across the permanent magnet (2), the described 1st
The collector of pole pipe T1 is connected by the first capacitor C1 with the base stage of the first triode T1, the first triode T1
Base stage be connected by the second resistance R2 with the emitter of the second triode T2, the base stage of the first triode T1
It is grounded by the second capacitor C2, the base stage of the first triode T1 is connected with the cathode of the first diode D1, institute
State the plus earth of first diode D1.
2. a kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor according to claim 1, it is characterised in that: institute
Stating permanent magnet (2) is ndfeb magnet, and the permanent magnet (2) includes the pole N, the pole S, and the vibratory string (1) passes through the pole N, S
Magnetic gap ground connection between pole.
3. a kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor according to claim 2, it is characterised in that: institute
Vibratory string (1) is stated using tungsten rhenium alloy wire.
4. a kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor according to claim 1, it is characterised in that: institute
State the model 2CK20 of first diode D1, the second diode D2.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210156090.8A CN114459584B (en) | 2019-07-23 | 2019-07-23 | Front amplifying circuit of truck scale frequency modulation information processor |
| CN201910665540.4A CN110426113A (en) | 2019-07-23 | 2019-07-23 | A kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910665540.4A CN110426113A (en) | 2019-07-23 | 2019-07-23 | A kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210156090.8A Division CN114459584B (en) | 2019-07-23 | 2019-07-23 | Front amplifying circuit of truck scale frequency modulation information processor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110426113A true CN110426113A (en) | 2019-11-08 |
Family
ID=68411900
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910665540.4A Withdrawn CN110426113A (en) | 2019-07-23 | 2019-07-23 | A kind of pre-amplification circuit of lorry weighing apparatus frequency modulated information processor |
| CN202210156090.8A Active CN114459584B (en) | 2019-07-23 | 2019-07-23 | Front amplifying circuit of truck scale frequency modulation information processor |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210156090.8A Active CN114459584B (en) | 2019-07-23 | 2019-07-23 | Front amplifying circuit of truck scale frequency modulation information processor |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN110426113A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1144841A (en) * | 1966-08-18 | 1969-03-12 | Gen Precision Systems Inc | Tuning fork digital accelerometer |
| CN87205821U (en) * | 1987-04-04 | 1988-02-03 | 北京建筑工程学院 | Frequency modulating shear force meter of fluid on surface |
| CN2129411Y (en) * | 1992-08-29 | 1993-04-07 | 孙厚钧 | Frequency modulation fluid densimeter |
| CN2134645Y (en) * | 1992-08-25 | 1993-05-26 | 孙厚钧 | Fm pressure meter |
| CN200941242Y (en) * | 2006-12-29 | 2007-08-29 | 刘仁峰 | Radio remote mining yield detector |
| CN202614368U (en) * | 2012-07-02 | 2012-12-19 | 李小萍 | Vibration control device |
| CN205334085U (en) * | 2015-08-31 | 2016-06-22 | 成都科创城科技有限公司 | Adopt intelligent house ecosystem of wireless response bracelet collection instruction |
| CN106370288A (en) * | 2016-08-17 | 2017-02-01 | 上海热带鱼电子科技有限公司 | Freight vibration sensing system and method |
| CN207050747U (en) * | 2017-07-21 | 2018-02-27 | 水利部交通运输部国家能源局南京水利科学研究院 | Type vibration wire readout instrument control system and the type vibration wire readout instrument for including it |
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| US5594169A (en) * | 1994-11-04 | 1997-01-14 | Gyration,Inc. | Optically sensed wire gyroscope apparatus and system, and methods for manufacture and cursor control |
| JP2003273670A (en) * | 2002-03-13 | 2003-09-26 | Mobile Communications Tokyo Inc | Bias control circuit |
| CN102353442B (en) * | 2011-06-15 | 2013-06-19 | 基康仪器(北京)有限公司 | Excitation method and apparatus thereof of vibrating wire instrument |
-
2019
- 2019-07-23 CN CN201910665540.4A patent/CN110426113A/en not_active Withdrawn
- 2019-07-23 CN CN202210156090.8A patent/CN114459584B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1144841A (en) * | 1966-08-18 | 1969-03-12 | Gen Precision Systems Inc | Tuning fork digital accelerometer |
| CN87205821U (en) * | 1987-04-04 | 1988-02-03 | 北京建筑工程学院 | Frequency modulating shear force meter of fluid on surface |
| CN2134645Y (en) * | 1992-08-25 | 1993-05-26 | 孙厚钧 | Fm pressure meter |
| CN2129411Y (en) * | 1992-08-29 | 1993-04-07 | 孙厚钧 | Frequency modulation fluid densimeter |
| CN200941242Y (en) * | 2006-12-29 | 2007-08-29 | 刘仁峰 | Radio remote mining yield detector |
| CN202614368U (en) * | 2012-07-02 | 2012-12-19 | 李小萍 | Vibration control device |
| CN205334085U (en) * | 2015-08-31 | 2016-06-22 | 成都科创城科技有限公司 | Adopt intelligent house ecosystem of wireless response bracelet collection instruction |
| CN106370288A (en) * | 2016-08-17 | 2017-02-01 | 上海热带鱼电子科技有限公司 | Freight vibration sensing system and method |
| CN207050747U (en) * | 2017-07-21 | 2018-02-27 | 水利部交通运输部国家能源局南京水利科学研究院 | Type vibration wire readout instrument control system and the type vibration wire readout instrument for including it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114459584B (en) | 2023-07-18 |
| CN114459584A (en) | 2022-05-10 |
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Application publication date: 20191108 |