CN106370209A - Input and output multichannel signal conditioning device - Google Patents
Input and output multichannel signal conditioning device Download PDFInfo
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- CN106370209A CN106370209A CN201611008260.9A CN201611008260A CN106370209A CN 106370209 A CN106370209 A CN 106370209A CN 201611008260 A CN201611008260 A CN 201611008260A CN 106370209 A CN106370209 A CN 106370209A
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- input
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
- G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
- G01D3/032—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure affecting incoming signal, e.g. by averaging; gating undesired signals
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Abstract
The invention provides an input and output multichannel signal conditioning device which comprises a mainboard and a plurality of independent daughter boards, and a 44 core socket is arranged on each daughter board; a plurality of input aviation sockets, a plurality of filter switches and a plurality of output aviation sockets are arranged on the mainboard; the mainboard is connected with the 44 core socket via one input aviation socket, one filter switch and one output aviation socket, and therefore an independent transmission loop circuit; each daughter board comprises an input isolation signal conditioning unit and an output isolation signal conditioning unit; the input isolation signal conditioning unit is used for wave filtering, suppressing, amplitude limiting and high gain amplifying of weak signals; the output isolation signal conditioning unit is used for shaping output signals of the input isolation signal conditioning unit and then outputting TTL signals. The beneficial effects of the input and output multichannel signal conditioning device are that the input and output multichannel signal conditioning device can be used for wave filtering, suppressing, amplitude limiting and high gain amplifying of input weak signals; a whole detection circuit is enabled to be high in anti-interference capability, and accuracy of detection can be guaranteed.
Description
Technical field
The invention belongs to non-electrical sensor signal processing technology field, especially relate to a kind of input and output multichannel letter
Number conditioner.
Background technology
In the detection field of non electrical quantity, it is frequently present of the situation that non electrical quantity is converted to ultra-weak electronic signal, and this electricity must
Must through corresponding circuit conversion become can reflect original physics flow characteristic can be through the signal of computer disposal.This circuit is
Can achieve this effective conversion.
Content of the invention
In view of this, it is contemplated that proposing a kind of input and output multi channel signals conditioner, for the faint letter of input
Number, there is filtering, suppression, amplitude limit and automatic gain ability so that whole testing circuit has very strong capacity of resisting disturbance, this letter
Number conditioner is applicable to non electrical quantity and detects occasion it can be ensured that the accuracy of detection, greatly improves the reliability of detection work
Property.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of input and output multi channel signals conditioner, including mainboard and multiple independent daughter board, each described daughter board
On be provided with 44 core sockets, described mainboard is provided with multiple input aviation sockets, multiple filter switch and multiple output boat
Dummy receptacle, described mainboard passes through a described input aviation socket, a filter switch and an output aviation socket, with institute
The described 44 core sockets stating daughter board connect, and form independent transmission loop, and include input isolation signals conditioning on described daughter board
Unit and output isolation signals conditioning unit, described input isolation signals conditioning unit enters to the small-signal of non-electrical sensor
Row filtering, the amplification of suppression, amplitude limit and high-gain；Described output isolation signals conditioning unit is adjusted to described input isolation signals
The output signal of reason unit carries out shaping, exports ttl signal.
Further, described input isolation signals conditioning unit includes first instrument amplifier n1 and second instrument amplifier
N2, input differential signal accesses input 2 foot and 3 feet of described first instrument amplifier n1 by low-pass filtering module, described
It is serially connected with the resistance r6 for adjusting gain amplifier, described first instrument amplifies between 1 foot of first instrument amplifier n1 and 4 feet
The 5 foot outputs of device n1 connect described second instrument amplifier n2, and 6 feet of described first instrument amplifier n1 export single-ended signals,
Wherein said first instrument amplifier n1 and described second instrument amplifier n2 is connected to source of stable pressure, and is provided with multiple ground connection
End.
Further, described low-pass filtering module includes resistance r1, resistance r2, electric capacity c1, electric capacity c2, inductance l1, inductance
L2, inductance l3, electric capacity c3, electric capacity c4 and electric capacity c5, described resistance r1 and described inductance l1 are connected into a branch road, described resistance r2
It is connected into another branch road with described inductance l2, above-mentioned two branch roads are parallel and input differential signal is respectively connected to two parallel branch, institute
State electric capacity c1 and described electric capacity c2 series connection, the upper end of described electric capacity c1 is connected between described resistance r1 and described inductance l1, institute
The lower end stating electric capacity c2 is connected between described resistance r2 and described inductance l2, described electric capacity c3 and electric capacity c4 series connection, described electricity
The upper end holding c3 is connected to the rear end of described inductance l1, and the lower end of described electric capacity c2 is connected to the rear end of described inductance l2.
Further, described output isolation signals conditioning unit includes shaping integrated circuit n6a, shaping integrated circuit n6b
Follow process circuit n8 with photoelectric coupling, the output signal of described input isolation signals conditioning unit accesses difference after division module
Access described shaping integrated circuit n6a and described shaping integrated circuit n6b, sine wave signal is shaped to square-wave signal, output
Follow process circuit n8 to described photoelectric coupling, follow as ttl output through photoelectric coupling, described photoelectric coupling follows process electricity
Road n8 is powered by one group of independent power supply guarantees that output signal is isolated, and described shaping integrated circuit n6a, the integrated electricity of described shaping
Road n6b and described photoelectric coupling are followed process circuit n8 and are provided with independent grounding point.
Further, described division module includes resistance r48, resistance r49, resistance r50 and resistance r51, described resistance
R48, described resistance r49, described resistance r50 and described resistance r51 are sequentially connected in series, described input isolation signals conditioning unit defeated
Go out signal to access between described resistance r49 and described resistance r50.
With respect to prior art, input and output multi channel signals conditioner of the present invention has the advantage that
Signal transmission passage between the mainboard of the present invention and daughter board, completely isolated between passage, stable output signal
Good, strong antijamming capability, reasonable in design, the circuit such as filtering, suppression, amplitude limit and automatic gain are organically combined so that
Whole testing circuit has very strong capacity of resisting disturbance, for the small-signal of input, can carry out the amplification of high-gain to it,
And the big signal for input, then carry out suppression decay, gain is automatically adjusted, there is wider area detection signal.
This testing circuit is applied to non electrical quantity and detects occasion it can be ensured that the accuracy of detection, greatly improve the reliability of detection work
Property.
Brief description
The accompanying drawing constituting the part of the present invention is used for providing a further understanding of the present invention, the schematic reality of the present invention
Apply example and its illustrate, for explaining the present invention, not constituting inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the attachment structure schematic diagram of the mainboard described in the embodiment of the present invention and daughter board；
Fig. 2 is the input isolation signals conditioning unit schematic diagram described in the embodiment of the present invention；
Fig. 3 is the output isolation signals conditioning unit schematic diagram described in the embodiment of the present invention.
Specific embodiment
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can phases
Mutually combine.
In describing the invention it is to be understood that term " " center ", " longitudinal ", " horizontal ", " on ", D score,
The orientation of instruction such as "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outward " or position relationship are
Based on orientation shown in the drawings or position relationship, it is for only for ease of the description present invention and simplifies description, rather than instruction or dark
Show the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right
The restriction of the present invention.Additionally, term " first ", " second " etc. are only used for describing purpose, and it is not intended that indicating or hint phase
To importance or the implicit quantity indicating indicated technical characteristic.Thus, the feature defining " first ", " second " etc. can
To express or to implicitly include one or more this feature.In describing the invention, unless otherwise stated, " multiple "
It is meant that two or more.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or is integrally connected；Can
To be to be mechanically connected or electrical connection；Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood by concrete condition
Concrete meaning in the present invention.
To describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
As shown in figure 1, the present invention provides a kind of input and output multi channel signals conditioner, including mainboard and multiple independence
Daughter board, each described daughter board is provided with 44 core sockets, described mainboard is provided with multiple input aviation sockets, multiple filtering
Device switch and multiple output aviation sockets, described mainboard passes through described input aviation socket, a filter switch and
Individual output aviation socket, is connected with the described 44 core sockets of described daughter board, forms independent transmission loop, and wraps on described daughter board
Include input isolation signals conditioning unit and output isolation signals conditioning unit, described input isolation signals conditioning unit is to non electrical quantity
The small-signal of sensor is filtered, suppresses, the amplification of amplitude limit and high-gain；Described output isolation signals conditioning unit pair
The output signal of described input isolation signals conditioning unit carries out shaping, exports ttl signal.
As shown in Fig. 2 described input isolation signals conditioning unit includes first instrument amplifier n1 and second instrument amplifies
Device n2, input differential signal accesses input 2 foot and 3 feet of described first instrument amplifier n1, institute by low-pass filtering module
State the resistance r6 being serially connected between 1 foot of first instrument amplifier n1 and 4 feet for adjusting gain amplifier, described first instrument is put
The 5 foot outputs of big device n1 connect described second instrument amplifier n2, and 6 feet of described first instrument amplifier n1 export single-ended letter
Number, wherein said first instrument amplifier n1 and described second instrument amplifier n2 is connected to source of stable pressure, and is provided with multiple
Earth terminal.
Described low-pass filtering module include resistance r1, resistance r2, electric capacity c1, electric capacity c2, inductance l1, inductance l2, inductance l3,
Electric capacity c3, electric capacity c4 and electric capacity c5, described resistance r1 and described inductance l1 are connected into a branch road, described resistance r2 and described inductance
L2 is connected into another branch road, and above-mentioned two branch roads are parallel and input differential signal is respectively connected to two parallel branch, described electric capacity c1 and
Described electric capacity c2 series connection, the upper end of described electric capacity c1 is connected between described resistance r1 and described inductance l1, described electric capacity c2's
Lower end is connected between described resistance r2 and described inductance l2, described electric capacity c3 and electric capacity c4 series connection, the upper end of described electric capacity c3
It is connected to the rear end of described inductance l1, the lower end of described electric capacity c2 is connected to the rear end of described inductance l2.
As shown in figure 3, described output isolation signals conditioning unit includes shaping integrated circuit n6a, shaping integrated circuit n6b
Follow process circuit n8 with photoelectric coupling, the output signal of described input isolation signals conditioning unit accesses difference after division module
Access described shaping integrated circuit n6a and described shaping integrated circuit n6b, sine wave signal is shaped to square-wave signal, output
Follow process circuit n8 to described photoelectric coupling, follow as ttl output through photoelectric coupling, described photoelectric coupling follows process electricity
Road n8 is powered by one group of independent power supply guarantees that output signal is isolated, and described shaping integrated circuit n6a, the integrated electricity of described shaping
Road n6b and described photoelectric coupling are followed process circuit n8 and are provided with independent grounding point.
Described division module includes resistance r48, resistance r49, resistance r50 and resistance r51, described resistance r48, described resistance
R49, described resistance r50 and described resistance r51 are sequentially connected in series, and the output signal of described input isolation signals conditioning unit accesses institute
State between resistance r49 and described resistance r50.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement made etc., should be included within the scope of the present invention.
Claims (5)
1. a kind of input and output multi channel signals conditioner it is characterised in that: include mainboard and multiple independent daughter board, each
44 core sockets are provided with described daughter board, described mainboard is provided with multiple input aviation sockets, multiple filter switch and many
Individual output aviation socket, described mainboard passes through a described input aviation socket, a filter switch and an output aviation
Socket, is connected with the described 44 core sockets of described daughter board, forms independent transmission loop, and includes input isolation on described daughter board
Signal condition unit and output isolation signals conditioning unit, described input isolation signals conditioning unit is micro- to non-electrical sensor
Weak signal is filtered, suppresses, the amplification of amplitude limit and high-gain；Described output isolation signals conditioning unit to described input every
Carry out shaping from the output signal of signal condition unit, export ttl signal.
2. input and output multi channel signals conditioner according to claim 1 it is characterised in that: described input isolation signals
Conditioning unit includes first instrument amplifier n1 and second instrument amplifier n2, and input differential signal is connect by low-pass filtering module
Enter input 2 foot and 3 feet of described first instrument amplifier n1, concatenate between 1 foot of described first instrument amplifier n1 and 4 feet
There is the resistance r6 for adjusting gain amplifier, the 5 foot outputs of described first instrument amplifier n1 connect described second instrument and amplify
The 6 foot output single-ended signals of device n2, described first instrument amplifier n1, wherein said first instrument amplifier n1 and described second
Instrument amplifier n2 is connected to source of stable pressure, and is provided with multiple earth terminals.
3. input and output multi channel signals conditioner according to claim 2 it is characterised in that: described low-pass filtering module
Including resistance r1, resistance r2, electric capacity c1, electric capacity c2, inductance l1, inductance l2, inductance l3, electric capacity c3, electric capacity c4 and electric capacity c5, institute
State resistance r1 and described inductance l1 and be connected into a branch road, described resistance r2 and described inductance l2 is connected into another branch road, above-mentioned two
Branch road is parallel and input differential signal is respectively connected to two parallel branch, described electric capacity c1 and described electric capacity c2 series connection, described electric capacity
The upper end of c1 is connected between described resistance r1 and described inductance l1, and the lower end of described electric capacity c2 is connected to described resistance r2 and institute
State between inductance l2, described electric capacity c3 and electric capacity c4 series connection, the upper end of described electric capacity c3 is connected to the rear end of described inductance l1, institute
The lower end stating electric capacity c2 is connected to the rear end of described inductance l2.
4. input and output multi channel signals conditioner according to claim 1 it is characterised in that: described output isolation signals
Conditioning unit includes shaping integrated circuit n6a, shaping integrated circuit n6b and photoelectric coupling and follows process circuit n8, described input
The output signal of isolation signals conditioning unit is respectively connected to described shaping integrated circuit n6a and described shaping after accessing division module
Integrated circuit n6b, sine wave signal is shaped to square-wave signal, exports described photoelectric coupling and follows process circuit n8, through light
Electric coupling is followed as ttl output, and described photoelectric coupling is followed process circuit n8 and powered by one group of independent power supply guarantees output letter
Number isolation, and described shaping integrated circuit n6a, described shaping integrated circuit n6b and described photoelectric coupling follow process circuit
N8 is provided with independent grounding point.
5. input and output multi channel signals conditioner according to claim 4 it is characterised in that: described division module includes
Resistance r48, resistance r49, resistance r50 and resistance r51, described resistance r48, described resistance r49, described resistance r50 and described electricity
Resistance r51 is sequentially connected in series, and the output signal of described input isolation signals conditioning unit accesses described resistance r49 and described resistance r50
Between.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008260.9A CN106370209A (en) | 2016-11-16 | 2016-11-16 | Input and output multichannel signal conditioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611008260.9A CN106370209A (en) | 2016-11-16 | 2016-11-16 | Input and output multichannel signal conditioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106370209A true CN106370209A (en) | 2017-02-01 |
Family
ID=57890948
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611008260.9A Pending CN106370209A (en) | 2016-11-16 | 2016-11-16 | Input and output multichannel signal conditioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106370209A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806702A (en) * | 2019-11-08 | 2020-02-18 | 中核兰州铀浓缩有限公司 | TP board card of centrifugal uranium concentration system |
| CN114207464A (en) * | 2020-06-29 | 2022-03-18 | 深圳市速腾聚创科技有限公司 | Laser receiving device and laser radar |
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| EP1067688A2 (en) * | 1999-06-29 | 2001-01-10 | Nortel Networks Limited | Digital filter and method of providing channel isolation in a radio frequency communication system |
| CN1355618A (en) * | 2000-11-28 | 2002-06-26 | 深圳市中兴通讯股份有限公司 | Flexible signal acquiring device |
| CN201830234U (en) * | 2010-06-24 | 2011-05-11 | 贠保记 | Analog signal interface conditioning circuit with isolated electronic transformer |
| CN201945347U (en) * | 2010-12-17 | 2011-08-24 | 天津市盛丹电子技术发展有限公司 | Flowmeter pretreatment instrument |
| CN102184750A (en) * | 2011-04-11 | 2011-09-14 | 北京广利核系统工程有限公司 | Testing device of nuclear power station digitized instrument and control system |
| CN103913692A (en) * | 2012-12-29 | 2014-07-09 | 北京谊安医疗系统股份有限公司 | Signal conditioning device for testing |
| CN204669320U (en) * | 2015-05-19 | 2015-09-23 | 陕西三恒电子科技有限公司 | A kind of signaling module with 5 channel signal conditionings |
| CN206177324U (en) * | 2016-11-16 | 2017-05-17 | 天津市盛丹电子技术发展有限公司 | Input/output is many, and channel signal takes care of ware |
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2016
- 2016-11-16 CN CN201611008260.9A patent/CN106370209A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1067688A2 (en) * | 1999-06-29 | 2001-01-10 | Nortel Networks Limited | Digital filter and method of providing channel isolation in a radio frequency communication system |
| CN1355618A (en) * | 2000-11-28 | 2002-06-26 | 深圳市中兴通讯股份有限公司 | Flexible signal acquiring device |
| CN201830234U (en) * | 2010-06-24 | 2011-05-11 | 贠保记 | Analog signal interface conditioning circuit with isolated electronic transformer |
| CN201945347U (en) * | 2010-12-17 | 2011-08-24 | 天津市盛丹电子技术发展有限公司 | Flowmeter pretreatment instrument |
| CN102184750A (en) * | 2011-04-11 | 2011-09-14 | 北京广利核系统工程有限公司 | Testing device of nuclear power station digitized instrument and control system |
| CN103913692A (en) * | 2012-12-29 | 2014-07-09 | 北京谊安医疗系统股份有限公司 | Signal conditioning device for testing |
| CN204669320U (en) * | 2015-05-19 | 2015-09-23 | 陕西三恒电子科技有限公司 | A kind of signaling module with 5 channel signal conditionings |
| CN206177324U (en) * | 2016-11-16 | 2017-05-17 | 天津市盛丹电子技术发展有限公司 | Input/output is many, and channel signal takes care of ware |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806702A (en) * | 2019-11-08 | 2020-02-18 | 中核兰州铀浓缩有限公司 | TP board card of centrifugal uranium concentration system |
| CN114207464A (en) * | 2020-06-29 | 2022-03-18 | 深圳市速腾聚创科技有限公司 | Laser receiving device and laser radar |
| CN114207464B (en) * | 2020-06-29 | 2023-11-24 | 深圳市速腾聚创科技有限公司 | Laser receiving device and laser radar |
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