CN206807410U - A kind of analog signal processing machine - Google Patents
A kind of analog signal processing machine Download PDFInfo
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- CN206807410U CN206807410U CN201720472875.0U CN201720472875U CN206807410U CN 206807410 U CN206807410 U CN 206807410U CN 201720472875 U CN201720472875 U CN 201720472875U CN 206807410 U CN206807410 U CN 206807410U
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- analog signal
- processing machine
- amplifying circuit
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Abstract
A kind of analog signal processing machine is the utility model is related to, including the signal processing circuit and power supply encapsulated in Metal shielding shell, Metal shielding shell, the signal processing circuit include 26 tunnel identical passages, each passage includes three-level circuit：First order circuit is preposition high-pass filtering amplifying circuit, and the preposition high-pass filtering amplifying circuit includes low noise in-phase amplifier and the unlimited gain multiple feedback type high-pass filter of 4 ranks；Second level circuit is programme-controlled gain amplifying circuit, and the programme-controlled gain amplifying circuit is the gain stepping amplifying circuit of parallel DA controls；Tertiary circuit is frequency band tunable band-pass filter circuit, and the frequency band tunable band-pass filter circuit is the frequency band variable band-pass filter that 8 rank switching capacity high-pass filters and 8 rank switching capacity low pass filters form.The utility model can cooperate with the processing faint analog signal in 26 roads, and circuit gain and filter bandwidht can be adjusted as needed, to meet the processing requirement of different amplitudes and frequency signal.
Description
Technical field
It the utility model is related to electronic signal technology, more particularly to a kind of analog signal processing machine.
Background technology
It is increasingly urgent to the processing requirement of analog signal of all kinds with the progress of electronic information technology.At present, it is known
Analog signal processing circuit be all wave filter and amplifier etc. that frequency band is fixed, the frequency range of process signal is limited, especially
It is poor to low-frequency signal processing effect, and can not effectively changes when target acoustical feature to be measured changes or is interfered
Frequency conversion band carries out frequency-conversion processing, thus practical value is not high., accordingly, it is desirable to provide a kind of traffic filter frequency band of changing
Analog signal processing machine.
Utility model content
The defects of the technical problems to be solved in the utility model is to be directed in the prior art, there is provided at a kind of analog signal
Reason machine.
Technical scheme is used by the utility model solves its technical problem：A kind of analog signal processing machine, including gold
The signal processing circuit of encapsulation and power supply, the signal processing circuit include 26 tunnel phases in category shielding shell, Metal shielding shell
Same passage, each passage include three-level circuit：First order circuit is preposition high-pass filtering amplifying circuit, the preposition high pass filter
Ripple amplifying circuit includes low noise in-phase amplifier and the unlimited gain multiple feedback type high-pass filter of 4 ranks；Second level circuit is
Programme-controlled gain amplifying circuit, the programme-controlled gain amplifying circuit are the gain stepping amplifying circuit of parallel DA controls；Third level electricity
Road is frequency band tunable band-pass filter circuit, and the frequency band tunable band-pass filter circuit is 8 rank switching capacity high-pass filters and 8 ranks
The frequency band variable band-pass filter of switching capacity low pass filter composition.
By such scheme, the preposition high-pass filtering amplifying circuit also includes the high-velocity electrons for switched amplifier gain
Switch.
By such scheme, the analog signal processing machine also includes frequency generating circuit, and the frequency generating circuit is used for
Two-way Transistor-Transistor Logic level is produced, the frequency generating circuit is connected with frequency band tunable band-pass filter circuit.
By such scheme, the analog signal processing machine also includes photoisolator, and the programme-controlled gain amplifying circuit leads to
Cross the control signal that photoisolator receives external digital signal processor.
By such scheme, the power supply is one or more LDO power supplys.
The device work principle be：GQM analog signal processings machine receives 26 road signal inputs, is sequentially completed micro- to 26 tunnels
Preposition high-pass filtering amplification, programming amplifying and the variable bandpass filtering of frequency band of weak signal etc. are managed, so that it becomes can be outside
The big signal of high s/n ratio of teaching machine processing, by the big signal output of high s/n ratio to digital signal processor, second level circuit is again
Gain step-by-step adjustment is carried out according to the feedback signal of digital signal processor, tertiary circuit can be according to digital signal processor
Feedback signal carries out frequency band step-by-step adjustment, until the big signal of high s/n ratio for making final output meets the specification the amplification of requirement
The indexs such as multiple, filtering characteristic, phase characteristic, output amplitude.
Beneficial effect is caused by the utility model：The utility model device can cooperate with the faint simulation letter in 26 roads of processing
Number, and circuit gain and filter bandwidht can be adjusted as needed, to meet the processing of different amplitudes and frequency signal
It is required that.
Brief description of the drawings
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing：
Fig. 1 is the structural representation of the utility model embodiment.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining that this practicality is new
Type, it is not used to limit the utility model.
As shown in figure 1, a kind of analog signal processing machine, including the mould encapsulated in Metal shielding shell, Metal shielding shell
Intend signal processing circuit and power supply, power supply is used to power to analog signal processing circuit, and power supply is one or more LDO power supplys,
The analog signal processing circuit includes 26 tunnel identical passages, and each passage includes three-level circuit：First order circuit is preposition
High-pass filtering amplifying circuit, the preposition high-pass filtering amplifying circuit add 4 ranks infinitely to increase using low noise in-phase amplifier
Beneficial multiple feedback type high-pass filter；Second level circuit is programme-controlled gain amplifying circuit, and the programme-controlled gain amplifying circuit uses
The gain stepping amplifying circuit of parallel DA controls；Tertiary circuit is frequency band tunable band-pass filter circuit, the frequency band adjustable band
The frequency band that bandpass filter circuit collectively forms using 8 rank switching capacity high-pass filters and 8 rank switching capacity low pass filters
Variable band-pass filter.Analog signal processing machine also includes photoisolator, the programme-controlled gain amplifying circuit by photoelectricity every
From the control signal that device receives external digital signal processor.Frequency generating circuit provides two TTL numerical frequencies control band logicals
The high low-end cut-off frequency of wave filter.
The utility model device can cooperate with the processing faint analog signal in 26 roads, and can be as needed to circuit gain and filter
Ripple device bandwidth is adjusted, to meet the processing requirement of different amplitudes and frequency signal.
It should be appreciated that for those of ordinary skills, can according to the above description be improved or converted,
And all these modifications and variations should all belong to the protection domain of the appended claims for the utility model.
Claims (5)
1. a kind of analog signal processing machine, it is characterised in that including the signal encapsulated in Metal shielding shell, Metal shielding shell
Process circuit and power supply, the signal processing circuit include 26 tunnel identical passages, and each passage includes three-level circuit：The first order
Circuit is preposition high-pass filtering amplifying circuit, and the preposition high-pass filtering amplifying circuit includes low noise in-phase amplifier and 4 ranks
Unlimited gain multiple feedback type high-pass filter；Second level circuit is programme-controlled gain amplifying circuit, the programme-controlled gain amplification electricity
Road is the gain stepping amplifying circuit of parallel DA controls；Tertiary circuit is frequency band tunable band-pass filter circuit, and the frequency band can
It is the frequency band adjustable band that 8 rank switching capacity high-pass filters and 8 rank switching capacity low pass filters form to adjust bandwidth-limited circuit
Bandpass filter.
2. analog signal processing machine according to claim 1, it is characterised in that the preposition high-pass filtering amplifying circuit is also
Including the high speed electronic switch for switched amplifier gain.
3. analog signal processing machine according to claim 1, it is characterised in that the analog signal processing machine also includes frequency
Rate generation circuit, the frequency generating circuit are used for producing two-way Transistor-Transistor Logic level, the frequency generating circuit and frequency band tunable band-pass
Filter circuit connects.
4. analog signal processing machine according to claim 1, it is characterised in that the analog signal processing machine also includes light
Electric isolator, the programme-controlled gain amplifying circuit receive the control signal of external digital signal processor by photoisolator.
5. analog signal processing machine according to claim 1, it is characterised in that the power supply is one or more LDO electricity
Source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720472875.0U CN206807410U (en) | 2017-05-02 | 2017-05-02 | A kind of analog signal processing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720472875.0U CN206807410U (en) | 2017-05-02 | 2017-05-02 | A kind of analog signal processing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206807410U true CN206807410U (en) | 2017-12-26 |
Family
ID=60738384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720472875.0U Active CN206807410U (en) | 2017-05-02 | 2017-05-02 | A kind of analog signal processing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN206807410U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471000A (en) * | 2019-09-20 | 2019-11-19 | 深圳市新威尔电子有限公司 | Battery noise test device |
| CN114966400A (en) * | 2022-06-24 | 2022-08-30 | 安徽高谐智能科技有限公司 | Motor health condition intelligent diagnosis system based on harmonic diagnosis technology |
-
2017
- 2017-05-02 CN CN201720472875.0U patent/CN206807410U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110471000A (en) * | 2019-09-20 | 2019-11-19 | 深圳市新威尔电子有限公司 | Battery noise test device |
| CN114966400A (en) * | 2022-06-24 | 2022-08-30 | 安徽高谐智能科技有限公司 | Motor health condition intelligent diagnosis system based on harmonic diagnosis technology |
| CN114966400B (en) * | 2022-06-24 | 2024-07-02 | 安徽高谐智能科技有限公司 | Motor health condition intelligent diagnosis system based on harmonic diagnosis technology |
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