CN106998196A - Multistage hybrid filter IC and method for underground engineering parameter measurement signal - Google Patents
Multistage hybrid filter IC and method for underground engineering parameter measurement signal Download PDFInfo
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- CN106998196A CN106998196A CN201710308618.8A CN201710308618A CN106998196A CN 106998196 A CN106998196 A CN 106998196A CN 201710308618 A CN201710308618 A CN 201710308618A CN 106998196 A CN106998196 A CN 106998196A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/68—Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H11/00—Networks using active elements
- H03H11/02—Multiple-port networks
- H03H11/38—One-way transmission networks, i.e. unilines
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- 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
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
A kind of multistage hybrid filter IC and method for underground engineering parameter measurement signal.Circuit includes underground survey unit, mixed filtering unit, post-processing unit, PMU, underground survey unit is connected by mixed filtering unit with post-processing unit, and PMU is connected with underground survey unit, mixed filtering unit, post-processing unit respectively.High frequency present in faint small-signal, big noise are filtered out by passive filtering mode first provided by the present invention for the multistage hybrid filter IC and method of underground engineering parameter measurement signal, then the amplification of certain multiple is carried out to signal, accurate frequency range filtering is carried out using second-order active filter network again, the denoising of signal is realized by way of " passive amplification is active " mixed filtering, ensure that later stage signal transacting, analysis decision are smoothed out, compared with conventional filtering mode, the precision, accuracy rate, anti-interference of underground survey data are improved.
Description
Technical field
The invention belongs to oil and gas well drilling technical field, more particularly to a kind of underground engineering parameter that is used for measures letter
Number multistage hybrid filter IC and method.
Background technology
In field of oil drilling, intelligent drilling instrument by underground survey unit to bottom pressure, annular pressure, the pressure of the drill,
The engineering parameters such as temperature, moment of torsion measure and handle in real time, for carrying out underground working analysis, device malfunction analysis, optimization
BHA, the normal drilling of guidance.Due to touching along with drill bit and the impact shock in shaft bottom, drill string and the borehole wall in drilling process
Hit, a variety of drilling fluid systems in underground and high temperature, the presence of hyperbaric environment, the signal amplitude that collects is small, comprising larger noise
And distortion, the problem of there is frame losing when serious and can not read, conventional passive or active power filtering mode can not ensure preferably
Filter effect, signal transacting, analysis decision to the later stage bring difficulty.
Therefore, study a kind of multistage hybrid filter IC and method for underground engineering parameter measurement signal, first by
Passive filtering mode filters out big noise signal present in small-signal, after being then amplified to signal, then using active power filtering
Mode carries out accurate filtering, the denoising of signal is realized by way of passive, amplification, active mixed filtering, it is ensured that later stage signal
Processing, analysis decision are smoothed out.
The content of the invention
The present invention is directed to propose a kind of multistage hybrid filter IC and method for underground engineering parameter measurement signal, real
The Denoising disposal of existing underground engineering parameter measurement data.
In order to achieve the above object, provided by the present invention for the multistage mixed filtering electricity of underground engineering parameter measurement signal
Road includes：Underground survey unit, mixed filtering unit, post-processing unit, PMU, wherein：Underground survey unit
Be connected by mixed filtering unit with post-processing unit, PMU respectively with underground survey unit, mixed filtering list
Member, the connection of post-processing unit；The underground survey unit is used for including bottom pressure, annular pressure, the pressure of the drill, temperature, moment of torsion
Engineering parameter real-time measurement, mixed filtering unit 200 is used to filtering out in the measurement data of underground survey unit output
Comprising noise signal, the post-processing unit be used for the mixed filtering unit export filtered signal carry out after
Continuous processing, including amplification, analog, D/A switch, Data Analysis Services operation, the PMU are used for for whole electricity
Road provides galvanic current energy.
The mixed filtering unit includes, passive filter circuit, signal amplification circuit, active filter circuit, wherein：It is passive
Filter circuit is connected by signal amplification circuit with active filter circuit, and underground survey unit is connected with passive filter circuit, is had
Power filter is connected with post-processing unit；The measurement signal that the passive filter circuit is exported to the underground survey unit
Handled, high frequency, big noise signal present in it are filtered out roughly, the signal amplification circuit is used for passive filter circuit
The filtering signal of 2001 outputs carries out the amplifieroperation of certain multiple, is easy to the further filtering process to signal, described active
Filter circuit is used to carry out accurate filtering to the amplified signal that the signal amplification circuit is exported, and remains with and uses band information.
The passive filter circuit includes first resistor R1, second resistance R2,3rd resistor R3, the first diode D1, the
Two diode D2, the first electric capacity C1, the second electric capacity C2, second resistance R2 and the first electric capacity C1 constitute the first low pass passive filtering net
Network, 3rd resistor R3 and the second electric capacity C2 constitute the second low pass passive filtering network, and first resistor R1 one end connects the underground
The positive signal end VIN+ of the output signal of measuring unit 100, the other end connects the first diode D1 positive pole, the first diode D1's
Negative pole connects the negative signal end VIN-, the second diode D2 and the first diode D1 of the output signal of underground survey unit 100
Reverse parallel connection, the first diode D1 positive pole connection second resistance R2 one end, the second resistance R2 other end connects the simultaneously
One electric capacity C1 one end and one end of 3rd resistor, the first electric capacity C1 other end connect the underground survey unit 100 and exported
The negative signal end VIN- of signal, 3rd resistor the R3 other end are the positive signal output end of passive filter circuit 2001, with the 3rd
Electric capacity C3 one end connection, the 3rd electric capacity C3 other end is the negative signal output end of passive filter circuit 2001, with the well
The negative signal end VIN- connections of the lower output signal of measuring unit 100.
The signal amplification circuit include the first operational amplifier U1 and its peripheral circuit, the second operational amplifier U2 and its
Peripheral circuit, wherein, the first operational amplifier U1 selects instrument amplifier chip I NA333, first operational amplifier
The positive signal output end of the U1 positive signal input pin+IN connections passive filter circuit 2001, first operation amplifier
The negative signal output end of device U1 negative signal input pin-IN connected with passive filter circuit 2001, the 3rd electric capacity C3 one end connects
Meet the negative signal input pin-IN of the first operational amplifier U1, other end ground connection, the electricity of the first operational amplifier U1
The positive pin V+ connections direct current 3.3V power vds D3.3 in source, the first operational amplifier U1 power supply bear pin V- ground connection, the 4th
Electric capacity C4 one end connects direct current 3.3V power vd D3.3, other end ground connection, the 4th resistance R4 one end connection direct current 3.3V power supplys
VDD3.3, the other end connects the 5th resistance R5 one end, the 5th resistance R5 other end ground connection, the first operational amplifier U1
Pin R1 and pin R2 be used to set multiplication factor by outer meeting resistance, its respectively with the first adjustable resistance Rw two ends company
Connect, the REF ends of the first operational amplifier U1 are reference voltage input pin, and the OUT of the first operational amplifier U1 draws
Pin is output pin, and the second operational amplifier U2 selects the operational amplifier chip OPA333 of TI companies, is designed as following
Device structure, for the interference of insulating power supply end, the positive pin V+ connections direct current 3.3V power supplys of power supply of the second operational amplifier U2
VDD3.3, the second operational amplifier U2 power supply bear pin V- ground connection, the input signal of the second operational amplifier U2
The resistance R4 and the 5th resistance R5 of positive pole pin+IN connections the 4th connection end, the input signal of the second operational amplifier U2
Negative pin-IN connections the second operational amplifier U2 output pin OUT, the OUT of the second operational amplifier U2 draw
Pin is output pin, connects the reference voltage input pin REF of the first operational amplifier U1.
The active filter circuit include the 3rd operational amplifier U3 and its peripheral circuit and four-operational amplifier U4 and
Its peripheral circuit, wherein, the 3rd operational amplifier U3 and four-operational amplifier U4 selects ADA4896 operational amplifiers,
Second-order active filter network is designed as, two opamp input terminals mouth is both designed as differential signal input, for improving input
The anti-interference at end, is extracted and processing, the positive pin+VS companies of power supply of the 3rd operational amplifier U3 beneficial to the later stage of small-signal
The power supply for meeting direct current 3.3V power vds D3.3, the 3rd operational amplifier U3 bears pin-VS ground connection, and the 5th electric capacity C5 one end connects
Positive pin+the VS of power supply of the 3rd operational amplifier U3 is met, the other end is grounded, and the signal of the 3rd operational amplifier U3 is just
The electric capacity C6 of pole input pin+IN1 connections the 6th one end, the 6th electric capacity C6 other end connects the 6th resistance R6 one end, the
One end that the six resistance R6 other end connects the output pin OUT, the 7th electric capacity C7 of the first operational amplifier U1 connects
The 6th resistance R6 one end is connect, the other end connects the 7th resistance R7 one end, the 7th resistance R7 one end connection second fortune
Amplifier U2 output pin OUT is calculated, the other end connects the signal negative pole input pin-IN1 of the 3rd operational amplifier U3,
8th resistance R8 one end connects the output pin OUT of the second operational amplifier U2, and the other end connects the 3rd computing
Amplifier U3 output pin OUT1, the 9th resistance R9 one end connect the signal positive pole input of the 3rd operational amplifier U3
Pin+IN1, the other end connects the output pin OUT1 of the 3rd operational amplifier U3, the four-operational amplifier U4's
Power supply positive pin+VS connections direct current 3.3V power vds D3.3, the four-operational amplifier U4 power supply bear pin-VS ground connection,
Tenth electric capacity C10 one end connects the positive pin+VS of power supply of the four-operational amplifier U4, other end ground connection, the 4th fortune
Calculate the amplifier U4 electric capacity C8 of signal positive pole input pin+IN1 connections the 8th one end, the 8th electric capacity C8 other end connects the
Ten resistance R10 one end, the tenth resistance R10 other end connects the output pin OUT1 of the 3rd operational amplifier U3, institute
The one end for stating the 11st resistance R11 connects the output pin OUT of the second operational amplifier U2, other end connection the described 4th
Operational amplifier U4 signal negative pole input pin-IN1, the 12nd resistance R12 one end connect second computing and put
Big device U2 output pin OUT, the other end connects the signal positive pole input pin+IN1 of the four-operational amplifier U4, described
9th electric capacity C9 one end connects the output pin OUT of the second operational amplifier U2, the other end connect the 8th electric capacity C8 and
Tenth resistance R10 connection end, the 13rd resistance R13 one end connects the signal negative pole input of the four-operational amplifier U4
Pin-IN1, the other end connects the output pin OUT1 of the four-operational amplifier U4, the 14th resistance R14 one end connection
The signal positive pole input pin+IN1 of the four-operational amplifier U4, the other end connects the defeated of the four-operational amplifier U4
The OUT1 pins for going out pin OUT1, the four-operational amplifier U4 are the output pin of the mixed filtering unit 200, output
Signal VOUT.
Multistage mixed filtering method provided by the present invention for underground engineering parameter measurement signal includes carrying out in order
The following steps：
a001：Underground survey unit is measured information such as the pressure near position, temperature, moments of torsion in real time.
a002：Passive filter circuit filters out measurement as first order filter network using second order passive low-pass filter mode
High-frequency noise present in signal and interference.
a003：Signal that signal amplification circuit is exported to passive filter circuit carry out certain multiple be exaggerated in order to carry out
More accurate filtering operation.
a004：Active filter circuit is as second level filter network, using second-order active filter mode to the letter after amplification
Number carry out accurate filtering operation, remain with and use band information.
a005：Post-processing unit is changed to filtered signal, explained, stored, according to the control included in signal
Information processed performs corresponding operation.
Provided by the present invention for underground engineering parameter measurement signal multistage hybrid filter IC and method first by nothing
Source filtering mode filters out high frequency present in faint small-signal, big noise, and the amplification of certain multiple is then carried out to signal, then adopts
Accurate frequency range filtering is carried out with second-order active filter network, signal is realized by way of " passive-amplification-active " mixed filtering
Denoising, it is ensured that later stage signal transacting, analysis decision are smoothed out, and compared with conventional filtering mode, improve underground survey
Precision, accuracy rate, the anti-interference of data.
Brief description of the drawings
Fig. 1 is the multistage hybrid filter IC structured flowchart provided by the present invention for underground engineering parameter measurement signal；
Fig. 2 is the multistage mixing of the multistage hybrid filter IC provided by the present invention for underground engineering parameter measurement signal
Filter circuit construction figure；
Fig. 3 is the multistage mixing of the multistage hybrid filter IC provided by the present invention for underground engineering parameter measurement signal
Filtering method flow chart.
Embodiment
Below in conjunction with the accompanying drawings with specific embodiment to the multistage provided by the present invention for underground engineering parameter measurement signal
Hybrid filter IC and method are described in detail.It should be noted that in the case where not conflicting, the embodiment in the present invention
And the feature in embodiment can be mutually combined.
As shown in figure 1, including provided by the present invention for the multistage hybrid filter IC of underground engineering parameter measurement signal：
Underground survey unit 100, mixed filtering unit 200, post-processing unit 300, PMU 400, wherein：
Underground survey unit 100 is connected by mixed filtering unit 200 with post-processing unit 300, PMU 400 respectively with
Underground survey unit 100, mixed filtering unit 200, post-processing unit 300 are connected；The underground survey unit 100 is used for well
The real-time measurement of the engineering parameters such as bottom pressure, annular pressure, the pressure of the drill, temperature, moment of torsion, mixed filtering unit 200 is used to filter out institute
The noise signal included in the measurement data for stating the output of underground survey unit 100, the post-processing unit 300 is used for described
The filtered signal that mixed filtering unit 200 is exported carries out subsequent treatment, including amplification, analog, D/A switch, data point
The operations such as analysis processing, the PMU 400 is used for the direct current energy for whole circuit with stable.
Further, the mixed filtering unit 200 includes, and passive filter circuit 2001, signal amplification circuit 2002, has
Power filter 2003, wherein：Passive filter circuit 2001 is connected by signal amplification circuit 2002 with active filter circuit 2003
Connect, underground survey unit 100 is connected with passive filter circuit 2001, active filter circuit 2003 connects with post-processing unit 300
Connect；The measurement signal that 2001 pairs of the passive filter circuit underground survey unit 100 is exported is handled, and it is filtered out roughly
Present in high frequency, big noise signal, the signal amplification circuit 2002 be used for passive filter circuit 2001 export filtering
Signal carries out the amplifieroperation of certain multiple, is easy to the further filtering process to signal, the active filter circuit 2003 is used
Accurate filtering is carried out in the amplified signal exported to the signal amplification circuit 2002, remains with and uses band information.
As shown in Fig. 2 the passive filter circuit 2001 includes first resistor R1, second resistance R2,3rd resistor R3, the
One diode D1, the second diode D2, the first electric capacity C1, the second electric capacity C2, second resistance R2 and the first electric capacity C1 compositions first
Low pass passive filtering network, 3rd resistor R3 and the second electric capacity C2 constitute the second low pass passive filtering network, first resistor R1 mono-
The positive signal end VIN+ of the end connection output signal of underground survey unit 100, the other end connects the first diode D1 positive pole,
First diode D1 negative pole connects the negative signal end VIN-, the second diode D2 of the output signal of underground survey unit 100
With the first diode D1 reverse parallel connections, the first diode D1 positive pole connection second resistance R2 one end, second resistance R2's is another
One end connects the first electric capacity C1 one end and one end of 3rd resistor simultaneously, and the first electric capacity C1 other end connects the underground and surveyed
The negative signal end VIN- of the output signal of unit 100 is measured, the 3rd resistor R3 other end is the positive signal of passive filter circuit 2001
Output end, is connected with the 3rd electric capacity C3 one end, and the 3rd electric capacity C3 other end is defeated for the negative signal of passive filter circuit 2001
Go out end, be connected with the negative signal end VIN- of the output signal of underground survey unit 100.
The signal amplification circuit 2002 includes the first operational amplifier U1 and its peripheral circuit, the second operational amplifier U2
And its peripheral circuit, wherein, the first operational amplifier U1 from TI companies instrument amplifier chip I NA333, described the
The positive signal output end of the one operational amplifier U1 positive signal input pin+IN connections passive filter circuit 2001, it is described
The negative signal output end of first operational amplifier U1 negative signal input pin-IN connected with passive filter circuit 2001, the 3rd electricity
The one end for holding C3 connects the negative signal input pin-IN of the first operational amplifier U1, other end ground connection, first computing
Amplifier U1 power supply positive pin V+ connections direct current 3.3V power vds D3.3, the first operational amplifier U1 power supply bear pin
V- is grounded, the 4th electric capacity C4 one end connection direct current 3.3V power vd D3.3, other end ground connection, the 4th resistance R4 one end connection direct current
3.3V power vd D3.3, the other end connects the 5th resistance R5 one end, the 5th resistance R5 other end ground connection, first computing
Amplifier U1 pin R1 and pin R2 is used to set multiplication factor by outer meeting resistance, and it is respectively with the first adjustable resistance Rw's
Two ends are connected, and the REF ends of the first operational amplifier U1 are reference voltage input pin, the first operational amplifier U1's
OUT pins are output pin, and the second operational amplifier U2 selects the operational amplifier chip OPA333 of TI companies, is designed as
Follower configuration, for the interference of insulating power supply end, the positive pin V+ connection direct currents 3.3V of power supply of the second operational amplifier U2
Power vd D3.3, the second operational amplifier U2 power supply bear pin V- ground connection, the input of the second operational amplifier U2
The resistance R4 and the 5th resistance R5 of signal positive pole pin+IN connections the 4th connection end, the input of the second operational amplifier U2
Signal negative pin-IN connections the second operational amplifier U2 output pin OUT, the second operational amplifier U2's
OUT pins are output pin, connect the reference voltage input pin REF of the first operational amplifier U1.
The active filter circuit 2003 includes the 3rd operational amplifier U3 and its peripheral circuit and four-operational amplifier
U4 and its peripheral circuit, wherein, ADA4896 fortune of the 3rd the operational amplifier U3 and four-operational amplifier U4 from AD companies
Amplifier is calculated, second-order active filter network is both designed as, two opamp input terminals mouth is both designed as differential signal input, used
In the anti-interference for improving input, extracted and processing, the power supply of the 3rd operational amplifier U3 beneficial to the later stage of small-signal
Positive pin+VS connection direct current 3.3V power vds D3.3, the 3rd operational amplifier U3 power supply bear pin-VS ground connection, the 5th
Electric capacity C5 one end connects the positive pin+VS of power supply of the 3rd operational amplifier U3, other end ground connection, the 3rd operation amplifier
The device U3 electric capacity C6 of signal positive pole input pin+IN1 connections the 6th one end, the 6th electric capacity C6 other end connects the 6th resistance
R6 one end, the 6th resistance R6 other end connects the output pin OUT of the first operational amplifier U1, the 7th electric capacity
C7 one end connects the 6th resistance R6 one end, and the other end connects the 7th resistance R7 one end, the 7th resistance R7 one end connection
The output pin OUT of the second operational amplifier U2, the signal negative pole that the other end connects the 3rd operational amplifier U3 is defeated
The one end for entering pin-IN1, the 8th resistance R8 connects the output pin OUT of the second operational amplifier U2, other end connection institute
The 3rd operational amplifier U3 output pin OUT1 is stated, the 9th resistance R9 one end connects the letter of the 3rd operational amplifier U3
Number positive pole input pin+IN1, the other end connects the output pin OUT1 of the 3rd operational amplifier U3, the 4th computing
Amplifier U4 power supply positive pin+VS connections direct current 3.3V power vds D3.3, the four-operational amplifier U4 power supply are negative to be drawn
Pin-VS is grounded, and the tenth electric capacity C10 one end connects the positive pin+VS of power supply of the four-operational amplifier U4, and the other end is grounded,
The electric capacity C8 of signal positive pole input pin+IN1 connections the 8th of four-operational amplifier U4 one end, the 8th electric capacity C8's is another
One end connects the tenth resistance R10 one end, and the tenth resistance R10 other end connection the 3rd operational amplifier U3 output is drawn
Pin OUT1, the 11st resistance R11 one end connect the output pin OUT of the second operational amplifier U2, and the other end connects
One end connection for meeting signal the negative pole input pin-IN1, the 12nd resistance R12 of the four-operational amplifier U4 is described
Second operational amplifier U2 output pin OUT, the signal positive pole input that the other end connects the four-operational amplifier U4 is drawn
Pin+IN1, the 9th electric capacity C9 one end connects the output pin OUT of the second operational amplifier U2, other end connection the
Eight electric capacity C8 and the tenth resistance R10 connection end, the 13rd resistance R13 one end connects the letter of the four-operational amplifier U4
Number negative pole input pin-IN1, the other end connects the output pin OUT1, the 14th resistance R14 of the four-operational amplifier U4
One end connect the signal positive pole input pin+IN1 of the four-operational amplifier U4, the other end connects the 4th computing and put
Big device U4 output pin OUT1, the four-operational amplifier U4 OUT1 pins are the defeated of the mixed filtering unit 200
Go out pin, output signal VOUT.
Multistage mixed filtering method provided by the present invention for underground engineering parameter measurement signal includes carrying out in order
The following steps：
a001：Underground survey unit 100 is measured information such as the pressure near position, temperature, moments of torsion in real time.
a002：Passive filter circuit 2001 is filtered out as first order filter network using second order passive low-pass filter mode
High-frequency noise present in measurement signal and interference.
a003：Signal that signal amplification circuit 2002 is exported to passive filter circuit 2001 carry out the amplification of certain multiple with
It is convenient for more accurate filtering operation.
a004：Active filter circuit 2003 as second level filter network, using second-order active filter mode to amplification after
Signal carry out accurate filtering operation, remain with and use band information.
a005：Post-processing unit 300 is changed to filtered signal, explained, stored, according to what is included in signal
Control information performs corresponding operation.
Underground survey unit 100 measures obtained each item data, is first fed into the passive filtering in mixed filtering unit 200
Handled roughly in circuit 2001, filter out high frequency, big noise, then filtered signal is entered by signal amplification circuit 2002
Row enhanced processing, then accurate filtering is carried out by two groups of second-order active filter networks in active filter circuit 2003, after acquisition
The signal that phase processing unit 300 can be handled and recognized, for the analysis, judgement and tool diagnostics of underground working, so as to instruct to bore
Enter.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (6)
1. a kind of multistage hybrid filter IC for underground engineering parameter measurement signal, it is characterised in that：It is described to be used for underground
The multistage hybrid filter IC of engineering parameter measurement signal includes：Underground survey unit (100), mixed filtering unit (200), after
Phase processing unit (300), PMU (400), wherein：Underground survey unit (100) passes through mixed filtering unit (200)
Be connected with post-processing unit (300), PMU (400) respectively with underground survey unit (100), mixed filtering unit
(200), post-processing unit (300) is connected；The underground survey unit (100) be used for bottom pressure, annular pressure, the pressure of the drill,
The real-time measurement of engineering parameter including temperature, moment of torsion, mixed filtering unit (200) is used to filter out the underground survey unit
(100) noise signal included in the measurement data of output, the post-processing unit (300) is used for the mixed filtering list
The filtered signal of first (200) output carries out subsequent treatment, including amplification, analog, D/A switch, Data Analysis Services behaviour
Make, the PMU (400) is used for the direct current energy for whole circuit with stable.
2. the multistage hybrid filter IC according to claim 1 for underground engineering parameter measurement signal, its feature exists
In：The mixed filtering unit (200) includes, passive filter circuit (2001), signal amplification circuit (2002), active power filtering electricity
Road (2003), wherein：Passive filter circuit (2001) is connected by signal amplification circuit (2002) and active filter circuit (2003)
Connect, underground survey unit (100) is connected with passive filter circuit (2001), active filter circuit (2003) and post-processing unit
(300) connect；At the measurement signal that the passive filter circuit (2001) exports to the underground survey unit (100)
Reason, filters out roughly high frequency, big noise signal present in it, and the signal amplification circuit (2002) is used for passive filter circuit
(2001) filtering signal of output carries out the amplifieroperation of certain multiple, is easy to the further filtering process to signal, described to have
Power filter (2003) is used to carry out accurate filtering to the amplified signal that the signal amplification circuit (2002) is exported, and remains with
Use band information.
3. the multistage hybrid filter IC according to claim 1 for underground engineering parameter measurement signal, its feature exists
In：The passive filter circuit (2001) includes first resistor R1, second resistance R2,3rd resistor R3, the first diode D1, the
Two diode D2, the first electric capacity C1, the second electric capacity C2, second resistance R2 and the first electric capacity C1 constitute the first low pass passive filtering net
Network, 3rd resistor R3 and the second electric capacity C2 constitute the second low pass passive filtering network, and first resistor R1 one end connects the underground
Measuring unit) (100) output signal positive signal end VIN+, the other end connect the first diode D1 positive pole, the first diode
D1 negative pole connects the negative signal end VIN-, the second diode D2 and the one or two of underground survey unit (100) output signal
Pole pipe D1 reverse parallel connections, the first diode D1 positive pole connection second resistance R2 one end, the second resistance R2 other end is simultaneously
The first electric capacity C1 one end and one end of 3rd resistor are connected, the first electric capacity C1 other end connects the underground survey unit
(100) the negative signal end VIN- of output signal, 3rd resistor the R3 other end are defeated for the positive signal of passive filter circuit (2001)
Go out end, be connected with the 3rd electric capacity C3 one end, the 3rd electric capacity C3 other end is defeated for the negative signal of passive filter circuit (2001)
Go out end, be connected with the negative signal end VIN- of underground survey unit (100) output signal.
4. the multistage hybrid filter IC according to claim 1 for underground engineering parameter measurement signal, its feature exists
In：The signal amplification circuit (2002) include the first operational amplifier U1 and its peripheral circuit, the second operational amplifier U2 and
Its peripheral circuit, wherein, the first operational amplifier U1 selects instrument amplifier chip I NA333, first operation amplifier
The positive signal output end of the device U1 positive signal input pin+IN connections passive filter circuit (2001), first computing
The negative signal output end of amplifier U1 negative signal input pin-IN connected with passive filter circuit (2001), the 3rd electric capacity C3's
One end connects the negative signal input pin-IN of the first operational amplifier U1, other end ground connection, first operational amplifier
U1 power supply positive pin V+ connections direct current 3.3V power vds D3.3, the first operational amplifier U1 power supply are born pin V- and connect
Ground, the 4th electric capacity C4 one end connection direct current 3.3V power vd D3.3, other end ground connection, the 4th resistance R4 one end connection direct current 3.3V
Power vd D3.3, the other end connects the 5th resistance R5 one end, the 5th resistance R5 other end ground connection, first operation amplifier
Device U1 pin R1 and pin R2 is used for by outer meeting resistance setting multiplication factor, its two ends respectively with the first adjustable resistance Rw
Connection, the REF ends of the first operational amplifier U1 are reference voltage input pin, the OUT of the first operational amplifier U1
Pin is output pin, and the second operational amplifier U2 selects operational amplifier chip OPA333, is designed as follower configuration,
Disturbed for insulating power supply end, the positive pin V+ connections direct current 3.3V power vd D3.3 of power supply of the second operational amplifier U2,
The power supply of the second operational amplifier U2 bears pin V- ground connection, the input signal positive pole pin of the second operational amplifier U2
The resistance R4 and the 5th resistance R5 of+IN connections the 4th connection end, the input signal negative pole pin of the second operational amplifier U2-
IN connections the second operational amplifier U2 output pin OUT, the OUT pins of the second operational amplifier U2 draw for output
Pin, connects the reference voltage input pin REF of the first operational amplifier U1.
5. the multistage hybrid filter IC according to claim 1 for underground engineering parameter measurement signal, its feature exists
In：The active filter circuit (2003) include the 3rd operational amplifier U3 and its peripheral circuit and four-operational amplifier U4 and
Its peripheral circuit, wherein, the 3rd operational amplifier U3 and four-operational amplifier U4 selects ADA4896 operational amplifiers,
Second-order active filter network is designed as, two opamp input terminals mouth is both designed as differential signal input, for improving input
The anti-interference at end, is extracted and processing, the positive pin+VS companies of power supply of the 3rd operational amplifier U3 beneficial to the later stage of small-signal
The power supply for meeting direct current 3.3V power vds D3.3, the 3rd operational amplifier U3 bears pin-VS ground connection, and the 5th electric capacity C5 one end connects
Positive pin+the VS of power supply of the 3rd operational amplifier U3 is met, the other end is grounded, and the signal of the 3rd operational amplifier U3 is just
The electric capacity C6 of pole input pin+IN1 connections the 6th one end, the 6th electric capacity C6 other end connects the 6th resistance R6 one end, the
One end that the six resistance R6 other end connects the output pin OUT, the 7th electric capacity C7 of the first operational amplifier U1 connects
The 6th resistance R6 one end is connect, the other end connects the 7th resistance R7 one end, the 7th resistance R7 one end connection second fortune
Amplifier U2 output pin OUT is calculated, the other end connects the signal negative pole input pin-IN1 of the 3rd operational amplifier U3,
8th resistance R8 one end connects the output pin OUT of the second operational amplifier U2, and the other end connects the 3rd computing
Amplifier U3 output pin OUT1, the 9th resistance R9 one end connect the signal positive pole input of the 3rd operational amplifier U3
Pin+IN1, the other end connects the output pin OUT1 of the 3rd operational amplifier U3, the four-operational amplifier U4's
Power supply positive pin+VS connections direct current 3.3V power vds D3.3, the four-operational amplifier U4 power supply bear pin-VS ground connection,
Tenth electric capacity C10 one end connects the positive pin+VS of power supply of the four-operational amplifier U4, other end ground connection, the 4th fortune
Calculate the amplifier U4 electric capacity C8 of signal positive pole input pin+IN1 connections the 8th one end, the 8th electric capacity C8 other end connects the
Ten resistance R10 one end, the tenth resistance R10 other end connects the output pin OUT1 of the 3rd operational amplifier U3, institute
The one end for stating the 11st resistance R11 connects the output pin OUT of the second operational amplifier U2, other end connection the described 4th
Operational amplifier U4 signal negative pole input pin-IN1, the 12nd resistance R12 one end connect second computing and put
Big device U2 output pin OUT, the other end connects the signal positive pole input pin+IN1 of the four-operational amplifier U4, described
9th electric capacity C9 one end connects the output pin OUT of the second operational amplifier U2, the other end connect the 8th electric capacity C8 and
Tenth resistance R10 connection end, the 13rd resistance R13 one end connects the signal negative pole input of the four-operational amplifier U4
Pin-IN1, the other end connects the output pin OUT1 of the four-operational amplifier U4, the 14th resistance R14 one end connection
The signal positive pole input pin+IN1 of the four-operational amplifier U4, the other end connects the defeated of the four-operational amplifier U4
The OUT1 pins for going out pin OUT1, the four-operational amplifier U4 are the output pin of the mixed filtering unit (200), defeated
Go out signal VOUT.
6. it is a kind of utilize as claimed in claim 2 for underground engineering parameter measurement signal multistage hybrid filter IC multistage
Mixed filtering method, it is characterised in that：The multistage mixed filtering method includes the following steps carried out in order：
a001：Underground survey unit (100) is measured information such as the pressure near position, temperature, moments of torsion in real time.
a002：Passive filter circuit (2001) filters out survey as first order filter network using second order passive low-pass filter mode
Measure high-frequency noise and interference present in signal.
a003：Signal that signal amplification circuit (2002) is exported to passive filter circuit 2001 carry out the amplification of certain multiple so as to
In the more accurate filtering operation of progress.
a004：Active filter circuit (2003) as second level filter network, using second-order active filter mode to amplification after
Signal carries out accurate filtering operation, remains with and uses band information.
a005：Post-processing unit (300) is changed to filtered signal, explained, stored, according to the control included in signal
Information processed performs corresponding operation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834995A (en) * | 2017-11-23 | 2018-03-23 | 西安电子科技大学 | Multifunctional ultrasonic imaging system |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645708A (en) * | 2005-01-21 | 2005-07-27 | 浙江大学 | Active electric filter by mixed harmonic detection |
| CN101525998A (en) * | 2008-03-06 | 2009-09-09 | 中国石油化工股份有限公司 | Ground signal receiving device for electromagnetic measurement while drilling system and receiving method thereof |
| CN103219733A (en) * | 2013-03-18 | 2013-07-24 | 辽宁省电力有限公司电力科学研究院 | Scattered power generation reactive compensation device and method with harmonic suppression function |
| CN104622460A (en) * | 2014-12-31 | 2015-05-20 | 北京瀚景锦河科技有限公司 | ECG signal collecting device |
| CN104991204A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | A multi-channel signal acquisition circuit for downhole power system parameter measurement |
| CN106160774A (en) * | 2015-04-08 | 2016-11-23 | 中国石油化工股份有限公司 | The method and system of the parameter of the signal receiving circuit of regulation down-hole repeater |
-
2017
- 2017-05-04 CN CN201710308618.8A patent/CN106998196B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1645708A (en) * | 2005-01-21 | 2005-07-27 | 浙江大学 | Active electric filter by mixed harmonic detection |
| CN101525998A (en) * | 2008-03-06 | 2009-09-09 | 中国石油化工股份有限公司 | Ground signal receiving device for electromagnetic measurement while drilling system and receiving method thereof |
| CN103219733A (en) * | 2013-03-18 | 2013-07-24 | 辽宁省电力有限公司电力科学研究院 | Scattered power generation reactive compensation device and method with harmonic suppression function |
| CN104622460A (en) * | 2014-12-31 | 2015-05-20 | 北京瀚景锦河科技有限公司 | ECG signal collecting device |
| CN106160774A (en) * | 2015-04-08 | 2016-11-23 | 中国石油化工股份有限公司 | The method and system of the parameter of the signal receiving circuit of regulation down-hole repeater |
| CN104991204A (en) * | 2015-07-17 | 2015-10-21 | 中国石油集团渤海钻探工程有限公司 | A multi-channel signal acquisition circuit for downhole power system parameter measurement |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834995A (en) * | 2017-11-23 | 2018-03-23 | 西安电子科技大学 | Multifunctional ultrasonic imaging system |
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