CN106950410A - Oscillograph based on triple amplifying circuits - Google Patents
Oscillograph based on triple amplifying circuits Download PDFInfo
- Publication number
- CN106950410A CN106950410A CN201710094278.3A CN201710094278A CN106950410A CN 106950410 A CN106950410 A CN 106950410A CN 201710094278 A CN201710094278 A CN 201710094278A CN 106950410 A CN106950410 A CN 106950410A
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- Prior art keywords
- resistance
- electric capacity
- signal
- attenuator
- data buffer
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
- G01R13/0218—Circuits therefor
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/02—Arrangements for displaying electric variables or waveforms for displaying measured electric variables in digital form
- G01R13/0218—Circuits therefor
- G01R13/0272—Circuits therefor for sampling
Abstract
The invention discloses a kind of oscillograph based on triple amplifying circuits, including attenuator, voltage follower, amplifier, AD sample circuits, controller, triggers circuit, clock module, data buffer, display；Wherein attenuator, voltage follower, amplifier, AD sample circuits, data buffer, display are sequentially connected, and AD sample circuits are also connected with clock module, triggers circuit respectively；The trigger is connected with data buffer, controller respectively；The present invention adds attenuator and amplifier in signal receiving front-end, front-end processing is carried out to the signal of entrance, reduce the entrance of interference signal, the signal to noise ratio of signal is kept, the accuracy of signal is improved, while operation of the display with touch function when more convenient to use, improve operating efficiency, inside sets more hommization, novel in design, is worthy to be popularized.
Description
Technical field
The invention discloses a kind of oscillograph based on triple amplifying circuits, belong to signal handling equipment technical field.
Background technology
Oscillograph is a kind of quite varied electronic measuring instrument of purposes.It can invisible converting electrical signal into
Observable image, is easy to people to study the change procedure of various electrical phenomenas.Oscillograph using it is narrow, be made up of high-velocity electrons
Electron beam, beat on the panel for scribbling fluorescent material, so that it may produce tiny luminous point, this is the work of traditional analog oscilloscope
Make principle.In the presence of measured signal, electron beam just looks like the nib of one-pen, and measured signal can be depicted on panel
Instantaneous value change curve.The wavy curve that various unlike signal amplitudes are changed over time can be observed using oscillograph, may be used also
To test a variety of electricity, such as voltage, electric current, frequency, phase difference, modulation with it.
Oscillograph is the characteristic using electronics oscilloscope tube, and the alternate electrical signal that human eye can not be observed directly is converted into figure
Picture, is shown on fluorescent screen so as to the electronic measuring instrument of measurement.It is observation digital circuit experiment phenomenon, analyzed in experiment
The essential important instrument of problem, measurement experiment result.
With the development of electronic technology, the progress of signal processing technology, existing equipment and tester are to oscillograph
It is required that how more and more higher, improve the signal transacting precision and accuracy of oscillograph, it has also become the problem of needing most solution at present.
Patent No. 201210577495.5, patent name is a kind of oscillograph, and the patent is for problem in the prior art
The problem of proposing solution, but the patent is to describe the means for realizing oscillograph existing capability, does not propose to improve
Mode.
Patent No. 201210509747.0, patent name is a kind of oscillograph, and the patent indicates prior art oscillography
The problem of device is present, the patent also simply propose from shell solve the problem of, do not provide and how to be solved the problems, such as from internal
Mode, solves DeGrain.
Meanwhile, there is the place required further improvement on the concrete structure of amplifier circuit in the prior art, with reality
Circuit power consumption is now reduced, the effect of amplification effect is improved.
The content of the invention
The technical problems to be solved by the invention are：Defect for prior art is electric based on triple amplifications there is provided one kind
The oscillograph on road, attenuator and amplifier are added in signal receiving front-end, are carried out front-end processing to the signal of entrance, are reduced interference
The entrance of signal.
The present invention uses following technical scheme to solve above-mentioned technical problem：A kind of oscillography based on triple amplifying circuits
Device, including attenuator, voltage follower, amplifier, AD sample circuits, controller, triggers circuit, clock module, data buffer storage
Device, display；Wherein attenuator, voltage follower, amplifier, AD sample circuits, data buffer, display are sequentially connected,
AD sample circuits are also connected with clock module, triggers circuit respectively；The triggers circuit respectively with data buffer, controller phase
Even；Input signal enters attenuator, and the amplitude of signal and gain are decayed via attenuator, and the signal after decay enters
Enter amplifier after voltage follower and carry out signal gain amplification, the signal after amplification enters AD sample circuits, AD samplings
Circuit is sampled to signal, the signal deposit data buffer after being sampled, and is shown by display；When described
Clock module provides sampling clock for AD sample circuits, and controller control triggers circuit starts AD sample circuits and data buffer；
The display is that operation interface is provided with touch-screen, controller, is shown by display screen, for operating.
The particular circuit configurations of the amplifier include the first to the 11st resistance, the first to the 9th electric capacity, first to the
Three triodes, wherein, the base stage phase of the first electric capacity respectively with one end, one end of the 4th electric capacity, the first diode of the 3rd electric capacity
Connection, the other end of the 4th electric capacity is connected with one end of second resistance, the other end of second resistance respectively with the 6th resistance
One end, one end of 3rd resistor, one end of the 9th electric capacity, one end of the 5th resistance, one end of the 7th resistance are connected, the 3rd electricity
The other end of appearance one end respectively with first resistor, one end of the tenth resistance are connected, the other end of first resistor and the 6th electricity
The other end of resistance is connected, the other end of the tenth resistance respectively with one end of the 9th resistance, the colelctor electrode of the 3rd triode, the 7th
One end of electric capacity is connected, the other end of the 7th electric capacity ground connection, the other end of the 9th resistance one end respectively with the 6th electric capacity, the
One end of 11 resistance is connected, the other end of the 6th electric capacity one end respectively with the 8th resistance, the emitter stage of the 3rd triode
Be connected, the other end of the 11st resistance respectively with the base stage of the 3rd triode, the emitter stage of the second triode, the 8th electric capacity
One end is connected, and the other end of the 8th resistance one end respectively with the second electric capacity, one end of the 4th resistance are connected, the second electric capacity
The other end and the emitter stage of the first diode be connected, the colelctor electrode of the first diode other end respectively with 3rd resistor,
One end of 5th electric capacity is connected, and the other end of the 5th electric capacity and the base stage of the second triode are connected, the collection of the second triode
The other end of electrode and the 5th resistance is connected, and the other end of the 8th electric capacity and the other end of the 7th resistance are connected.
As the further prioritization scheme of the present invention, the chip model that the attenuator is used is HMC274.
As the further prioritization scheme of the present invention, the chip model of the voltage follower is LM358.
As the further prioritization scheme of the present invention, the controller uses single-chip microcomputer, the model of the single-chip microcomputer
STC90C51。
As the further prioritization scheme of the present invention, the chip that the clock module is used is DS1302.
As the further prioritization scheme of the present invention, also including keyboard, the keyboard is connected with controller.
As the present invention further prioritization scheme, also including wave filter, the wave filter be arranged at voltage follower and
Between amplifier, the signal exported via voltage follower is amplified after the filtering of device into amplifier after filtering.
The present invention uses above technical scheme compared with prior art, with following technique effect：The present invention connects in signal
Receive front end and add attenuator and amplifier, front-end processing is carried out to the signal of entrance, the entrance of interference signal is reduced, signal is kept
Signal to noise ratio, improve signal accuracy, while display with touch function it is more convenient to use when operation, improve operation
Efficiency, inside sets more hommization, novel in design, is worthy to be popularized.Meanwhile, the design for triple triodes that the present invention is used,
The power output of amplifier is improved, the specific power consumption of circuit is reduced.
Brief description of the drawings
Fig. 1 is the circuit module connection diagram of the present invention.
Fig. 2 is the amplifier circuit schematic diagram of the present invention,
Wherein：R1 to R11 is respectively the first to the 11st resistance, and C1 to C9 is respectively the first to the 9th electric capacity, D1 to D3 difference
For the first to the 3rd triode.
Embodiment
Embodiments of the present invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element or element with same or like function are represented to same or similar label eventually.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Those skilled in the art of the present technique are it is understood that the correlation module and its function of realization that are related in the present invention
It is that computer software programs conventional in the prior art are carried in device, device or the system of hardware after improvement and its composition
It is not that computer software programs of the prior art or relevant agreement are improved or relevant agreement is achieved that.For example,
Computer hardware system after improvement still can realize the spy of the hardware system by loading existing operation system of software
Determine function.It is understood, therefore, that the innovation of the present invention is the improvement to hardware module in the prior art and its company
Syntagmatic is connect, rather than is only the improvement to realizing the software carried about function or agreement in hardware module.
Those skilled in the art of the present technique are it is understood that the correlation module mentioned in the present invention is performed for the application
Described in one or more of hardware device in step in operation, method, flow, measure, scheme.The hardware device can
Purpose needed for thinking and specially design and manufacture, or can also use known device in all-purpose computer or it is known its
His hardware device.The all-purpose computer is activated or reconstructed with having the procedure selection being stored in it.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " one " used herein, " one
It is individual ", " described " and "the" may also comprise plural form.It is to be further understood that what is used in the specification of the present invention arranges
Diction " comprising " refer to there is the feature, integer, step, operation, element and/or component, but it is not excluded that in the presence of or addition
Other one or more features, integer, step, operation, element, component and/or their group.It should be understood that when we claim member
Part is " connected " or during " coupled " to another element, and it can be directly connected or coupled to other elements, or can also exist
Intermediary element.In addition, " connection " used herein or " coupling " can include wireless connection or coupling.Wording used herein
"and/or" includes one or more associated any cells for listing item and all combined.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein（Including technology art
Language and scientific terminology）With the general understanding identical meaning with the those of ordinary skill in art of the present invention.Should also
Understand, those terms defined in such as general dictionary, which should be understood that, to be had and the meaning in the context of prior art
The consistent meaning of justice, and unless defined as here, will not be explained with idealization or excessively formal implication.
Technical scheme is described in further detail below in conjunction with the accompanying drawings：The circuit module connection of the present invention
Schematic diagram is as shown in figure 1, a kind of oscillograph based on triple amplifying circuits, including attenuator, voltage follower, amplifier, AD
Sample circuit, controller, triggers circuit, clock module, data buffer, display；Wherein attenuator, voltage follower, put
Big device, AD sample circuits, data buffer, display are sequentially connected, AD sample circuits also respectively with clock module, triggers circuit
It is connected；The trigger is connected with data buffer, controller respectively；Input signal enters attenuator, via attenuator to letter
Number amplitude and gain decayed, the signal after decay enter voltage follower after enter amplifier carry out signal gain puts
Greatly, the signal after amplification enters AD sample circuits, and AD sample circuits are sampled to signal, and the signal after being sampled is deposited
Enter data buffer, and shown by display；The clock module provides sampling clock, controller for AD sample circuits
Triggers circuit is controlled to start AD sample circuits and data buffer；The display is provided with operation circle in touch-screen, controller
Face, is shown by display screen, for operating.
Wave filter also can be set between the voltage follower and amplifier, signal is filtered, filtering clutter it is dry
Disturb, while also can concurrently or separately set wave filter after amplifier, noise signal is mixed into the signal after amplification, wave filter
It is more accurate that filter range to be set.
The present invention amplifier circuit schematic diagram as shown in Fig. 2 the amplifier particular circuit configurations include first to
11st resistance, the first to the 9th electric capacity, the first to the 3rd triode, wherein, the first electric capacity one end respectively with the 3rd electric capacity,
One end of 4th electric capacity, the base stage of the first diode are connected, and the other end of the 4th electric capacity is connected with one end of second resistance,
The other end of second resistance respectively with one end of the 6th resistance, one end of 3rd resistor, one end of the 9th electric capacity, the 5th resistance
One end, one end of the 7th resistance are connected, the other end of the 3rd electric capacity one end respectively with first resistor, one end of the tenth resistance
It is connected, the other end of the other end of first resistor and the 6th resistance is connected, the other end of the tenth resistance is electric with the 9th respectively
One end of resistance, the colelctor electrode of the 3rd triode, one end of the 7th electric capacity are connected, the other end ground connection of the 7th electric capacity, the 9th electricity
The other end of resistance one end respectively with the 6th electric capacity, one end of the 11st resistance are connected, the other end of the 6th electric capacity respectively and
One end of 8th resistance, the emitter stage of the 3rd triode are connected, the other end of the 11st resistance respectively with the 3rd triode
Base stage, the emitter stage of the second triode, one end of the 8th electric capacity are connected, the other end of the 8th resistance respectively with the second electric capacity
One end, one end of the 4th resistance are connected, and the emitter stage of the other end of the second electric capacity and the first diode is connected, the one or two pole
The colelctor electrode of the pipe other end respectively with 3rd resistor, one end of the 5th electric capacity are connected, the other end and second of the 5th electric capacity
The base stage of triode is connected, and the other end of the colelctor electrode of the second triode and the 5th resistance is connected, the 8th electric capacity it is another
End is connected with the other end of the 7th resistance.
As the further prioritization scheme of the present invention, the chip model that the attenuator is used can also use for HMC274
The attenuator that resistance is set up, specifically according to the size of circuit board or can be realized the requirement of precision and selected using which kind of mode
Select.
As the further prioritization scheme of the present invention, the chip model of the voltage follower is LM358, voltage follow
Device, is to realize that output voltage follows an electron-like element of the change of input voltage as its name suggests.That is, voltage follow
The voltage amplification factor perseverance of device is less than and close to 1.The distinguishing feature of voltage follower is exactly that input impedance is high, and output impedance
It is low, the load capacity of rear end is improved, the carrying capacity of circuit is improved.
As the further prioritization scheme of the present invention, the controller uses single-chip microcomputer, the model of the single-chip microcomputer
STC90C51。
As the further prioritization scheme of the present invention, the chip that the clock module is used is DS1302, and the chip can be straight
Connect and be connected with single-chip microcomputer, realize clock, it is to avoid be conventional the problem of being separately provided clock inside single-chip microcomputer, go wrong just
In lookup.
As the further prioritization scheme of the present invention, also including keyboard, the keyboard is connected with controller, in the present invention
Display has contact action function, adds both cooperatings after keyboard, more facilitates when using, operating efficiency is improved, one
When side goes wrong, there is alternative.
Embodiments of the present invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned implementation
Mode, can also be on the premise of present inventive concept not be departed from the knowledge that those of ordinary skill in the art possess
Make a variety of changes.The above, is only presently preferred embodiments of the present invention, not makees any formal limit to the present invention
System, although the present invention is disclosed above with preferred embodiment, but is not limited to the present invention, any to be familiar with this professional skill
Art personnel, without departing from the scope of the present invention, when the technology contents using the disclosure above make it is a little change or
The Equivalent embodiments of equivalent variations are modified to, as long as being that, without departing from technical solution of the present invention content, the technology according to the present invention is real
Matter, within the spirit and principles in the present invention, any simple modification, equivalent and the improvement made to above example
Deng still falling within the protection domain of technical solution of the present invention.
Claims (1)
1. a kind of oscillograph based on triple amplifying circuits, it is characterised in that：Including attenuator, voltage follower, amplifier, AD
Sample circuit, controller, triggers circuit, clock module, data buffer, display；Wherein attenuator, voltage follower, put
Big device, AD sample circuits, data buffer, display are sequentially connected, AD sample circuits also respectively with clock module, triggers circuit
It is connected；The triggers circuit is connected with data buffer, controller respectively；Input signal enters attenuator, via attenuator pair
The amplitude of signal and gain are decayed, and the signal after decay, which enters after voltage follower, enters amplifier progress signal gain
Amplification, the signal after amplification enters AD sample circuits, and AD sample circuits are sampled to signal, the signal after being sampled
Data buffer is stored in, and is shown by display；The clock module provides sampling clock for AD sample circuits, control
Device control triggers circuit starts AD sample circuits and data buffer；The display is provided with operation in touch-screen, controller
Interface, is shown by display screen, for operating；
The particular circuit configurations of the amplifier include the first to the 11st resistance, the first to the 9th electric capacity, first to the 3rd 3
Pole pipe, wherein, base stage of first electric capacity respectively with one end, one end of the 4th electric capacity, the first diode of the 3rd electric capacity is connected,
The other end of 4th electric capacity is connected with one end of second resistance, the other end of second resistance one end respectively with the 6th resistance,
One end of 3rd resistor, one end of the 9th electric capacity, one end of the 5th resistance, one end of the 7th resistance are connected, the 3rd electric capacity
Other end one end respectively with first resistor, one end of the tenth resistance are connected, the other end of first resistor and the 6th resistance
The other end is connected, the other end of the tenth resistance respectively with one end of the 9th resistance, the colelctor electrode of the 3rd triode, the 7th electric capacity
One end be connected, the other end of the 7th electric capacity ground connection, the other end of the 9th resistance one end respectively with the 6th electric capacity, the 11st
One end of resistance is connected, and the other end of the 6th electric capacity one end respectively with the 8th resistance, the emitter stage of the 3rd triode are connected
Connect, the other end of the 11st resistance respectively with the base stage of the 3rd triode, the emitter stage of the second triode, the 8th electric capacity one end
Be connected, the other end of the 8th resistance one end respectively with the second electric capacity, one end of the 4th resistance are connected, the second electric capacity it is another
One end is connected with the emitter stage of the first diode, the colelctor electrode of the first diode other end respectively with 3rd resistor, the 5th
One end of electric capacity is connected, and the other end of the 5th electric capacity and the base stage of the second triode are connected, the colelctor electrode of the second triode
It is connected with the other end of the 5th resistance, the other end of the 8th electric capacity and the other end of the 7th resistance are connected；
The chip model that the attenuator is used is HMC274；The chip model of the voltage follower is LM358；The control
Device uses single-chip microcomputer, the model STC90C51 of the single-chip microcomputer；The chip that the clock module is used is DS1302.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710094278.3A CN106950410A (en) | 2014-11-25 | 2014-11-25 | Oscillograph based on triple amplifying circuits |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410679574.6A CN104391151B (en) | 2014-11-25 | 2014-11-25 | A kind of oscillograph based on triple amplifying circuits |
| CN201710094278.3A CN106950410A (en) | 2014-11-25 | 2014-11-25 | Oscillograph based on triple amplifying circuits |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410679574.6A Division CN104391151B (en) | 2014-11-25 | 2014-11-25 | A kind of oscillograph based on triple amplifying circuits |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106950410A true CN106950410A (en) | 2017-07-14 |
Family
ID=52609076
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710094297.6A Pending CN106771458A (en) | 2014-11-25 | 2014-11-25 | Oscillograph |
| CN201410679574.6A Active CN104391151B (en) | 2014-11-25 | 2014-11-25 | A kind of oscillograph based on triple amplifying circuits |
| CN201710094298.0A Withdrawn CN106908644A (en) | 2014-11-25 | 2014-11-25 | A kind of oscillograph based on triple amplifying circuits |
| CN201710094278.3A Withdrawn CN106950410A (en) | 2014-11-25 | 2014-11-25 | Oscillograph based on triple amplifying circuits |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710094297.6A Pending CN106771458A (en) | 2014-11-25 | 2014-11-25 | Oscillograph |
| CN201410679574.6A Active CN104391151B (en) | 2014-11-25 | 2014-11-25 | A kind of oscillograph based on triple amplifying circuits |
| CN201710094298.0A Withdrawn CN106908644A (en) | 2014-11-25 | 2014-11-25 | A kind of oscillograph based on triple amplifying circuits |
Country Status (1)
| Country | Link |
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| CN (4) | CN106771458A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08162859A (en) * | 1994-11-29 | 1996-06-21 | Hitachi Ltd | Multi-stage amplifier |
| CN103257259A (en) * | 2012-02-15 | 2013-08-21 | 安捷伦科技有限公司 | Digital oscilloscope comprising multiple data acquisition pathways |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10282152A (en) * | 1997-04-02 | 1998-10-23 | Kokusai Electric Co Ltd | Oscilloscope, facsimile transmission system, and communication system |
| JP3406493B2 (en) * | 1997-10-22 | 2003-05-12 | 安藤電気株式会社 | Signal processing circuit of electro-optic probe |
| US6473701B1 (en) * | 1999-11-22 | 2002-10-29 | Tektronix, Inc. | Alternate triggering in digital oscilloscopes |
| US7986591B2 (en) * | 2009-08-14 | 2011-07-26 | Taiwan Semiconductor Manufacturing Company, Ltd. | Ultra high resolution timing measurement |
| CN201540323U (en) * | 2009-11-02 | 2010-08-04 | 北京普源精电科技有限公司 | Digital oscilloscope with equivalent sampling function |
| CN102053172B (en) * | 2009-11-10 | 2012-11-14 | 北京普源精电科技有限公司 | High-resistance broadband attenuation circuit and oscilloscope using same |
| CN103185821B (en) * | 2011-12-29 | 2017-04-19 | 北京普源精电科技有限公司 | Digital oscilloscope with front end attenuation function |
| CN103884889B (en) * | 2012-12-21 | 2018-04-24 | 北京普源精电科技有限公司 | Oscillograph with improved front-end circuit |
| CN103116053B (en) * | 2013-01-31 | 2015-11-04 | 福建利利普光电科技有限公司 | A kind of automatic range measuring method for measuring digital storage oscilloscope |
| CN203465330U (en) * | 2013-07-08 | 2014-03-05 | 东莞市路晨电子科技有限公司 | Oscilloscope front-end processing circuit |
| CN203551628U (en) * | 2013-08-29 | 2014-04-16 | 江西渝州科技职业学院 | Digital oscilloscope for measuring power supply |
-
2014
- 2014-11-25 CN CN201710094297.6A patent/CN106771458A/en active Pending
- 2014-11-25 CN CN201410679574.6A patent/CN104391151B/en active Active
- 2014-11-25 CN CN201710094298.0A patent/CN106908644A/en not_active Withdrawn
- 2014-11-25 CN CN201710094278.3A patent/CN106950410A/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08162859A (en) * | 1994-11-29 | 1996-06-21 | Hitachi Ltd | Multi-stage amplifier |
| CN103257259A (en) * | 2012-02-15 | 2013-08-21 | 安捷伦科技有限公司 | Digital oscilloscope comprising multiple data acquisition pathways |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104391151A (en) | 2015-03-04 |
| CN106771458A (en) | 2017-05-31 |
| CN104391151B (en) | 2017-03-15 |
| CN106908644A (en) | 2017-06-30 |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170714 |
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