CN107120108A - It is a kind of with being drilled to as sector detection circuit - Google Patents
It is a kind of with being drilled to as sector detection circuit Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/002—Survey of boreholes or wells by visual inspection
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Abstract
The invention discloses one kind with being drilled to as sector detection circuit, it includes magnetic field induction and signal amplification circuit module, is exported for measuring magnetic field of the earth component, and the analog signal for characterizing magnetic field of the earth component being amplified；Analog-to-digital conversion and benchmark buffer circuit module, the analog signal for the magnetic field induction and signal amplification circuit module to be exported are converted to data signal；Control circuit module, the data signal for being exported according to the analog-to-digital conversion and benchmark buffer circuit module is calculated as sector data；Interface module, the imaging sector data transfer for the control circuit module to be exported gives others application systems.The present invention has performance stable, and reliability is high, the characteristics of expansion is strong.
Description
Technical field
It is used to detect electric with boring in geological prospecting the present invention relates to technical field of geological exploration, more particularly to one kind
The imaging sector of the imaging measurement instrument such as resistance rate, gamma with being drilled to as sector detection circuit.
Background technology
With the extensive use of the drilling technologies such as high angle hole, horizontal well, measurement while drilling is with logging technique and with brill
Geosteering also obtains significant progress.The measurement such as conventional resistivity logging while drilling, gamma, neutron density and
Logger can provide one or more of experiment curvs, be measurement while drilling with well logging and with boring geosteering
Important tool.There are commercialization resistivity logging while drilling, gamma, the neutron of comparative maturity in each major company both at home and abroad at present
The measurements such as density and logger are applied to situ of drilling well service in large quantities.But resistivity logging while drilling, the gal of routine
The measurements such as horse, neutron density and logger contribute to obtain the general effect on the stratum in ring well week, it is impossible to anti-
Should with embody formation resistivity, gamma, the change of the parameter in different azimuth or sector such as neutron density.This
Result in and be difficult to accurately know high angle hole or horizontal well with the metrical information for boring instrument by these routines
Well week anisotropy value, and then can not determine the azimuth-range of stratigraphic boundary, this will greatly limit with
Bore the application effect of geosteering.
Therefore, on the basis of the instruments such as conventional resistivity logging while drilling, gamma, neutron density, with brill imaging measurement
Instrument, which turns into, further improves measurement while drilling and with the important tool for boring geosteering performance.These are with brill imager
Device must be all formulated with being drilled to as sector detection circuit, to provide high high-precision imaging fan for image checking
Detect data in area.These imaging sectors detection data combine resistivity, gamma, neutron density of correspondence sector etc.
Testing result, it is possible to form final resistivity logging while drilling, gamma, neutron density imaging measurements.
Have in the prior art with the research in terms of brill sector detection.For example, invention 1：《A kind of orientation gal
Horse measuring method and equipment》(201210167670.3) it is related to 16 sector detections in, mainly for the inspection of gamma
Survey, but do not refer to sector according to detection.An other invention 2：《Filled with the measurement of orientation electromagnetic resistivity is bored
Put and its measuring method》(201310723607.8) it is related to 24 sector detections in, mainly for the inspection of resistivity
Survey, but do not refer to sector according to detection.And foregoing invention does not all specifically give the design of sector detection circuit.
In addition, document 1：《With brill Orientation density logging method basic research》(China University Of Petroleum Beijing's Master's thesis,
2011), simply in theory to being studied and having been calculated with the detection for boring Orientation density, not specifically yet
Provide the design of sector detection circuit.Document 2：《With brill remote measurement imaging logging Study on Data Processing Techniques oil
Natural gas journal》(2014,36 (11)：111-116) data processing also simply to imaging is studied,
The design of sector detection circuit is not specifically given yet.
The content of the invention
In view of the above-mentioned problems, the invention provides a kind of specific sector detection circuit, so as to for being drilled to as surveying
Amount provides hardware supported.
The present invention provide with being drilled to as sector detection circuit, including：
Magnetic field induction and signal amplification circuit module, for measuring magnetic field of the earth component, and will characterize magnetic field of the earth
The analog signal amplification output of component；
Analog-to-digital conversion and benchmark buffer circuit module, for the magnetic field induction and signal amplification circuit module is defeated
The analog signal gone out is converted to data signal；
Control circuit module, is buffered for controlling each module coordination to work, and according to the analog-to-digital conversion and benchmark
The data signal of circuit module output is calculated as sector data；
Interface module, for the imaging sector data transfer that exports the control circuit module to others
Application system.
Embodiments in accordance with the present invention, it is above-mentioned with being drilled to as sector detection circuit can also include：
Biasing and reset circuit module, for the control instruction that is exported according to the control circuit module to the magnetic
Field sensing performs the operation of HVB high voltage bias and reset-set with signal amplification circuit module.
Embodiments in accordance with the present invention, above-mentioned magnetic field induction includes two magnetic fluxs with signal amplification circuit module and sensed
Device, is respectively used to the magnetic field of the earth component H that two angles of measurement are in 90 degreexAnd Hy, the control circuit module
Angle, θ for dividing imaging sector is calculated according to following formula：
θ=arctg (Hx/Hy)。
Embodiments in accordance with the present invention, above-mentioned magnetic field induction can also include with signal amplification circuit module：Two
Instrumentation amplifier, the simulation letter of the sign magnetic field of the earth component for amplifying described two magnetic flux transducer outputs
Number；Some resistance being connected with described two instrumentation amplifiers, for controlling putting for described two instrumentation amplifiers
Big multiple.
Embodiments in accordance with the present invention, above-mentioned analog-to-digital conversion includes with benchmark buffer circuit module：Two single computings
Amplifier, for amplifying the analog signal that the magnetic field induction is exported with signal amplification circuit module；With described two
Some resistance of individual single operational amplifier connection, the multiplication factor for controlling described two single operational amplifiers；
Analog-digital converter, for the analog signal of described two single operational amplifier amplifications to be converted into data signal.
Embodiments in accordance with the present invention, above-mentioned control circuit module includes：Microcontroller, as the control electricity
The central processing unit of road module, output control is instructed and according to the analog-to-digital conversion and benchmark buffer circuit module
The data signal of output is calculated as sector data；The plug-in unit being connected with the microcontroller, as the micro-control
The online serial programming interface of device processed.
Embodiments in accordance with the present invention, above-mentioned interface module includes：Electrical level transferring chip, for by described in
The numerical signal of control circuit module output, which is converted to, can be supplied to the transmission signal of outer application system；With institute
The plug-in unit of electrical level transferring chip connection is stated, for setting up data transfer with outer application system.
Embodiments in accordance with the present invention, above-mentioned interface module can be configured to 485 serial line interfaces.
Embodiments in accordance with the present invention, above-mentioned biasing includes with reset circuit module：Electric pressure converter, be used for into
Row voltage conversion, the voltage needed for biased reset is realized with offer；The driving electrically connected with the electric pressure converter
Device, the control signal for being sent according to the control circuit module controls the electric pressure converter to carry out voltage turn
Change.
Embodiments in accordance with the present invention, above-mentioned magnetic field induction and signal amplification circuit module, analog-to-digital conversion and benchmark
Also set respectively in buffer circuit module, control circuit module, interface module, biasing and reset circuit module
It is equipped with for the electric capacity to power filter, and/or for the electric capacity to signal filtering.
Compared with prior art, one or more embodiments of the invention can have the following advantages that：
1st, the present invention provide with being drilled to as preferably using single chip integrated X-direction magnetic flux in sector detection circuit
Door sensor and Y direction fluxgate sensor, it is ensured that the two sensors it is relatively uniform, at utmost
Reduce influence of the vibrations to measurement result.
What the 2nd, the present invention was provided can be with the biasing and reset circuit module being drilled to as being set in sector detection circuit
The sensor output shift caused by high temperature changes is corrected in time.
Therefore the present invention provide with being drilled to as sector detection circuit has performance stable, the characteristics of reliability is high,
It can particularly overcome when measuring sector using acceleration transducer because the reason such as vibrations is easily interfered
Technical problem.
In addition, the present invention provide with being drilled to as sector detection circuit has very strong expansion, with being drilled to as fan
The output result of area's detection circuit can be directly output to other outer application systems for example, by 485 buses,
The imaging measurement system such as constituting high-precision resistivity, gamma and neutron density, is further improved with brill
Measure and with brill geosteering performance.
Other features and advantages of the present invention will be illustrated in the following description, also, partly from specification
In become apparent, or by implement the present invention and understand.The purpose of the present invention and other advantages can pass through
Specifically noted structure is realized and obtained in specification, claims and accompanying drawing.
Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with the present invention
Embodiment be provided commonly for explain the present invention, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is the present invention with the structural representation being drilled to as sector detection circuit；
Fig. 2 is that the present invention is exemplary with the magnetic field induction and signal amplification circuit mould that are drilled to as sector detection circuit
The structural representation of block；
Fig. 3 is that the present invention is exemplary with the analog-to-digital conversion and benchmark buffer circuit mould that are drilled to as sector detection circuit
The structural representation of block；
Fig. 4 is that the present invention is exemplary with the structural representation for being drilled to the interface module as sector detection circuit
Figure；
Fig. 5 is that the present invention is exemplary with the structural representation for being drilled to the control circuit module as sector detection circuit
Figure；
Fig. 6 is that the present invention is exemplary with the biasing for being drilled to picture sector detection circuit and the structure of reset circuit module
Schematic diagram.
Embodiment
" with being drilled to as sector detection circuit " that the present invention is provided is high-precision with the inspection for boring imaging sector to realize
Survey, it is necessary to 8 sectors after (the i.e. 360 degree) decile that often rotated a circle with brill instrument, 16 sectors, 32 fans
Area, 64 sectors or 128 sectors etc. are detected.As shown in figure 1, in order to realize it is high-precision be drilled to as fan
The detection in area, " with being drilled to as sector detection circuit " that the present invention is provided mainly includes：
Magnetic field induction and signal amplification circuit module 10, analog-to-digital conversion and benchmark buffer circuit module 20, control
Circuit module 30, interface module 40, biasing and reset circuit module 50.
Wherein, magnetic field induction and the integrated at least X-axis side of fluxgate sensor in signal amplification circuit module 10
To two magnetic flux transducers with Y direction, for magnetic field of the earth component signal to be converted into weaker simulation electricity
Signal, usually voltage signal (principle is referring to formula (1)), analog voltage signal is by amplification, mould
The first microcontroller is input to after number conversion, thus the first microcontroller calculates imaging sector data.
The principle that magnetic field of the earth component signal is converted into analog voltage signal is：
The angle of the measurement direction of two magnetic flux transducers is 90 degree, and the magnetic field of the earth component of measurement is respectively Hx
And Hy, the angle, θ of calculating is divided for carrying out imaging sector to be obtained by following formula：
θ=arctg (Hx/Hy) (1)
Specifically, fluxgate sensor in magnetic field induction and signal amplification circuit module 10 is according to detecting
HxAnd HyA weaker analog voltage signal is output as, the analog voltage signal is put by signal amplification circuit
After big, the analog-to-digital conversion and benchmark buffer circuit module 20 being electrically connected can be input to.Analog-to-digital conversion and benchmark
The analog voltage signal of reception is changed corresponding data signal by buffer circuit module 20, then data signal is defeated
Go out to the control circuit module 30 being electrically connected.The data signal of 30 pairs of receptions of control circuit module is deposited
Storage and computing, finally give imaging sector data.Control circuit module 30 is defeated by these imaging sector data again
Go out to the interface module 40 being electrically connected, interface module 40 can be by these imaging sector data
Export to other outer application system (not shown)s.In addition, biasing and the electricity of reset circuit module 50
Be connected to the output end of control circuit module 30 and magnetic field induction and signal amplification circuit module 10 input it
Between, for the control instruction that is exported according to control circuit module 30 to magnetic field induction and signal amplification circuit module
10 perform the operation of HVB high voltage bias and reset-set.
Below by a specific embodiment further illustrate the present invention provide " be drilled to as sector detection electricity
The circuit structure and operation principle on road ".
In one embodiment as shown in Figure 2, magnetic field induction is mainly used to obtain with signal amplification circuit module 10
Exported after taking magnetic flux signal and being amplified, the circuit mainly includes：First resistor R5, second resistance R6,
First filter capacitor C11, the second filter capacitor C12, the 3rd filter capacitor C13, the 4th filter capacitor C14,
First fluxgate sensor U3, the first instrumentation amplifier U4, the second instrumentation amplifier U5.Wherein, the first electricity
Resistance R5, second resistance R6 are used for the multiplication factor for controlling instrumentation amplifier, the first filter capacitor C11, second
Filter capacitor C12, the 3rd filter capacitor C13, the 4th filter capacitor C14 are used for power filter, the first magnetic
Open gate sensor U3 is used for sensing magnetic flux signal, the first instrumentation amplifier U4, the second instrumentation amplifier U5 use
In the analog voltage signal for amplifying the first fluxgate sensor U3 outputs.
Specifically, first resistor R5 mono- terminates the first instrumentation amplifier U4 the 2nd pin, and first resistor R5 is another
One the first instrumentation amplifier U4 of termination the 3rd pin；Second resistance R6 mono- terminates the second instrumentation amplifier U5's
2nd pin, the first instrumentation amplifier U5 of another terminations of second resistance R6 the 3rd pin；First filter capacitor C11
One end, the second filter capacitor C12 one end, the 3rd filter capacitor C13 one end, the 4th filter capacitor
C14 one end is connected with 5V power supplys, the first filter capacitor C11 other end, the second filter capacitor C12
The other end, the 3rd filter capacitor C13 other end, the 4th filter capacitor C14 other end ground connection；First instrument
It is connected with amplifier U4 the 1st pin with the first fluxgate sensor U3 the 5th pin, the first instrumentation amplifier
U4 the 4th pin is connected with the first fluxgate sensor U3 the 2nd pin, and the 5th of the first instrumentation amplifier U4 the
Pin is grounded, the first instrumentation amplifier U4 the 6th pin with analog-to-digital conversion and benchmark buffer circuit module 20
The load resistance connection of first single operational amplifier U8 the 6th pin, the first instrumentation amplifier U4 the 7th pin with
Analog-to-digital conversion is connected with the 1st pin of the first analog-digital converter U6 in benchmark buffer circuit module 20, the first instrument
It is connected with amplifier U4 the 8th pin with 5V power supplys；Second instrumentation amplifier U5 the 1st pin and the first magnetic flux
Door sensor U3 the 9th pin connection, the second instrumentation amplifier U5 the 4th pin and the first fluxgate sensor
U3 the 12nd pin connection, the second instrumentation amplifier U5 the 5th pin ground connection, the of the second instrumentation amplifier U5
6 pin are negative with the 6th pin of second single operational amplifier U7 in analog-to-digital conversion and benchmark buffer circuit module 20
Carry in resistance connection, the second instrumentation amplifier U5 the 7th pin and analog-to-digital conversion and benchmark buffer circuit module 20
The first analog-digital converter U6 the connection of the 8th pin, the second instrumentation amplifier U5 the 8th pin connects with 5V power supplys
Connect；First fluxgate sensor U3 the 1st pin ground connection, the first fluxgate sensor U3 the 4th pin and 5V
Power supply is connected, the first fluxgate sensor U3 the 6th pin ground connection, the 7th of the first fluxgate sensor U3 the
Pin is grounded, the first fluxgate sensor U3 the 8th pin ground connection, the first fluxgate sensor U3 the 11st pin
It is connected with 5V power supplys, the first fluxgate sensor U3 the 13rd pin ground connection, the first fluxgate sensor U3
The 18th pin ground connection, the of the first fluxgate sensor U3 the 16th pin and biasing and reset circuit module 50
One driver U9 the 5th pin, the 6th pin, the 7th pin, the connection of the 8th pin.
When it is implemented, first resistor R5 can use such as 200 Ω resistance, second resistance R6 can be used
Such as 200 Ω resistance, the first filter capacitor C11 can use such as 10pF ceramic disc capacitors, the second filtered electrical
Such as 10pF ceramic disc capacitors can be used by holding C12, and the 3rd filter capacitor C13 can use such as 10pF ceramics
Electric capacity, the 4th filter capacitor C14 can use such as 10pF ceramic disc capacitors, and the first instrumentation amplifier U4 can be with
Using such as AD8422 instrumentation amplifiers, the second instrumentation amplifier U5 can be used using such as AD8422 instrument
Amplifier, the first fluxgate sensor U3 can use such as HMC1002 fluxgate sensors.
In one embodiment as shown in Figure 3, analog-to-digital conversion is mainly used to reality with benchmark buffer circuit module 20
Show model signals to the conversion of numerical signal, the circuit mainly includes：First resistor R7, second resistance R8,
3rd resistor R9, the 4th resistance R10, the first electric capacity C15, the second electric capacity C16, the 3rd electric capacity C17,
Four electric capacity C18, the 5th electric capacity C19, the 6th electric capacity C20, the 7th electric capacity C21, the 8th electric capacity C22,
One single operational amplifier U8, second single operational amplifier U7, the first analog-digital converter U6.Wherein, the first electricity
Resistance R7 and second resistance R8 effect is the multiplication factor for controlling first single operational amplifier U8,3rd resistor
R9 and the 4th resistance R10 effects are the multiplication factors for controlling second single operational amplifier U7, the first electric capacity C15,
Second electric capacity C16, the 3rd electric capacity C17, the 4th electric capacity C18 effect be to signal filtering, the 5th electric capacity C19,
6th electric capacity C20, the 7th electric capacity C21, the 8th electric capacity C22 effect are first single computings to power filter
Amplifier U8, second single operational amplifier U7 effect are amplification input signal, the first analog-digital converter U6
Effect be that the analog signal of amplification is converted into data signal.
Specifically, first resistor R7 one end be connected with second resistance R8 one end, another terminations of first resistor R7
Ground；Second resistance R8 one end is connected with the first instrumentation amplifier U4 the 6th pin, the second resistance R8 other ends
It is connected with first single pin of operational amplifier U8 the 6th；3rd resistor R9 one end connects with the 4th resistance R10 one end
Connect, the 3rd resistor R9 other ends are grounded；4th resistance R10 one end and the 6th of the second instrumentation amplifier U5
Pin connection, the 4th resistance R10 other ends are connected with second single pin of operational amplifier U7 the 6th；First electric capacity C15
One end is connected with second resistance R8 one end, first electric capacity C15 other ends ground connection；Second electric capacity C16 one end with
First single operational amplifier U8 the 3rd pin connection, second electric capacity C16 other ends ground connection；3rd electric capacity C17
One end is connected with the 4th resistance R10 one end, the 3rd electric capacity C17 other ends ground connection；4th electric capacity C18 one end
It is connected with second single operational amplifier U7 the 3rd pin, the 4th electric capacity C18 other ends are grounded；5th electric capacity C19,
6th electric capacity C20, the 7th electric capacity C21, the 8th electric capacity C22 one end are connected with 5V power supplys, the 5th electric capacity C19,
6th electric capacity C20, the 7th electric capacity C21, the 8th electric capacity C22 other ends ground connection；First single operational amplifier
U8 the 2nd pin is connected with the 6th pin, first single operational amplifier U8 the 3rd pin and the first analog-digital converter
U6 the 3rd pin connection, first single operational amplifier U8 the 4th pin ground connection, first single operational amplifier U8
The 7th pin connect 5V power supplys；Second single operational amplifier U7 the 2nd pin is connected with the 6th pin, second single computing
Amplifier U7 the 3rd pin is connected with the first analog-digital converter U6 the 6th pin, second single operational amplifier U7
The 4th pin ground connection, second single operational amplifier U7 the 7th pin connect 5V power supplys；First analog-digital converter U6
The 1st pin be connected with the 7th pin of the first instrumentation amplifier, the first analog-digital converter U6 the 2nd pin, the 4th
Pin, the 5th pin, the 7th pin, the 11st pin, the 12nd pin ground connection, the first analog-digital converter U6 the 8th pin with
Second instrumentation amplifier U5 the 7th pin connection, the first analog-digital converter U6 the 9th pin, the 16th pin and 5V
Power supply is connected, the first analog-digital converter U6 the 13rd pin and the first microcontroller in control circuit module 30
U1 the 3rd pin connection, the first analog-digital converter U6 the 14th pin and first in control circuit module 30 micro-
In controller U1 the 2nd pin connection, the first analog-digital converter U6 the 15th pin and control circuit module 30
First microcontroller U1 the 1st pin connection.
When it is implemented, first resistor R7 can use such as 10K resistance, second resistance R8 can be used
Such as 10K resistance, 3rd resistor R9 can use such as 10K resistance, and the 4th resistance R10 can use example
Such as 10K resistance, the first electric capacity C15 can use such as 1nF electric capacity, and the second electric capacity C16 can use example
Such as 1nF electric capacity, the 3rd electric capacity C17 can use such as 1nF electric capacity, and the 4th electric capacity C18 can be using for example
1nF electric capacity, the 5th electric capacity C19 can use such as 0.1 μ F electric capacity, and the 6th electric capacity C20 can be using for example
0.1 μ F electric capacity, the 7th electric capacity C21 can use such as 0.1 μ F electric capacity, and the 8th electric capacity C22 can be used
Such as 0.1 μ F electric capacity, first single operational amplifier U8 can use the mono- operational amplifiers of such as OPA211,
Second single operational amplifier U7U8 can use the mono- operational amplifiers of such as OPA211, the first analog-digital converter
U6 can use such as AD7357 analog-digital converters.
In one embodiment as shown in Figure 4, control circuit module 30 be mainly used to control circuit work and
It is calculated as sector data, the circuit mainly includes：First current-limiting resistance R1, the second current-limiting resistance R2,
Three current-limiting resistance R3, the 4th current-limiting resistance R4, the first power filtering capacitor C1, second source filter capacitor
C2, the 3rd power filtering capacitor C3, the 4th power filtering capacitor C4, the 5th power filtering capacitor C5, the 6th
Power filtering capacitor C6, the 7th power filtering capacitor C7, the 8th power filtering capacitor C8, the 9th power filter
Electric capacity C9, the first crystal oscillator Y1, the first indicator lamp LED1, the second indicator lamp LED2, the first plug-in unit ICSP,
First microcontroller U1.Wherein, the first current-limiting resistance R1, the second current-limiting resistance R2, the 3rd current-limiting resistance
R3, the 4th current-limiting resistance R4 are used for limiting source current, the first power filtering capacitor C1, second source filtering
Electric capacity C2, the 3rd power filtering capacitor C3, the 4th power filtering capacitor C4, the 5th power filtering capacitor C5,
6th power filtering capacitor C6, the 7th power filtering capacitor C7, the 8th power filtering capacitor C8, the 9th power supply
Filter capacitor C9 is used for the power filter to the first microcontroller U1, and the first crystal oscillator Y1 is used for being the first micro-control
Device U1 processed provides clock signal, and the first indicator lamp LED1, the second indicator lamp LED2 are used for showing the first micro-control
Device U1 processed working condition, the first plug-in unit ICSP is used as the first microcontroller U1 online serial programming
Interface, the first microcontroller U1 as control circuit module 30 central processing unit.
Specifically, first current-limiting resistance R1 one end is connected with the first microcontroller U1 the 7th pin, the first current limliting
The resistance R1 other ends and second current-limiting resistance R2 one end are connected with first power filtering capacitor C1 one end, the
The one power filtering capacitor C1 other ends are grounded, another termination 5V power supplys of the second current-limiting resistance R2；3rd current limliting
Resistance R3 one end is connected with the first microcontroller U1 the 21st pin, and the 3rd current-limiting resistance R3 other ends are with referring to
Show that lamp LED2 one end is connected, indicator lamp LED2 other ends ground connection；4th current-limiting resistance R4 one end and first
Microcontroller U1 the 22nd pin connection, the 4th current-limiting resistance R4 other ends are connected with indicator lamp LED1 one end,
The indicator lamp LED1 other ends are grounded；The of second source filter capacitor C2 one end and the first microcontroller U1
56 pin are connected, second source filter capacitor C2 other ends ground connection；3rd power filtering capacitor C3 one end and the
One microcontroller U1 the 39th pin connection, the 3rd power filtering capacitor C3 other ends ground connection；4th power supply is filtered
Ripple electric capacity C4 one end is connected with the first microcontroller U1 the 40th pin, and the 4th power filtering capacitor C4 is another
End ground connection；5th power filtering capacitor C5, the 6th power filtering capacitor C6, the 7th power filtering capacitor C7,
8th power filtering capacitor C8, the 9th power filtering capacitor C9 one end are connected with 5V power supplys, the filter of the 5th power supply
Ripple electric capacity C5, the 6th power filtering capacitor C6, the 7th power filtering capacitor C7, the 8th power filtering capacitor
C8, the 9th power filtering capacitor C9 other ends ground connection；First crystal oscillator Y1 one end is with the first microcontroller U1's
39th pin is connected, and the first crystal oscillator Y1 other ends are connected with the first microcontroller U1 the 40th pin；First plug-in unit
ICSP the 1st pin is connected with the first microcontroller U1 the 7th pin, the first plug-in unit ICSP the 2nd pin and 5V
Power supply is connected, the first plug-in unit ICSP the 3rd pin ground connection, the first plug-in unit ICSP the 4th pin and the first microcontroller
Device U1 the 15th pin connection, the first plug-in unit ICSP the 5th pin and the first microcontroller U1 the 16th pin connect
Connect；First microcontroller U1 the 9th pin ground connection, the first microcontroller U1 the 10th pin and 5V power supplys connect
Connect, the first microcontroller U1 the 20th pin ground connection, the first microcontroller U1 the 19th pin and 5V power supplys connect
Connect, the first microcontroller U1 the 25th pin ground connection, the first microcontroller U1 the 26th pin and 5V power supplys connect
Connect, the first microcontroller U1 the 38th pin is connected with 5V power supplys, the first microcontroller U1 the 41st pin connects
Ground, the first microcontroller U1 the 57th pin is connected with 5V power supplys.
When it is implemented, the first current-limiting resistance R1 can use such as 620 Ω resistance, the second current-limiting resistance R2
Such as 4.7K Ω resistance can be used, the 3rd current-limiting resistance R3 can use such as 10K Ω resistance, the 4th limit
Leakage resistance R4 can use such as 10K Ω resistance, and the first power filtering capacitor C1 can use such as 0.1 μ F
Ceramic disc capacitor, second source filter capacitor C2 can use such as 10 μ F ceramic disc capacitors, the 3rd power filter electricity
Such as 10pF ceramic disc capacitors can be used by holding C3, and the 4th power filtering capacitor C4 can use such as 10pF
Ceramic disc capacitor, the 5th power filtering capacitor C5 can use such as 0.1 μ F ceramic disc capacitors, the 6th power filter
Electric capacity C6 can use such as 0.1 μ F ceramic disc capacitors, and the 7th power filtering capacitor C7 can use such as 0.1 μ F
Ceramic disc capacitor, the 8th power filtering capacitor C8 can use such as 0.1 μ F ceramic disc capacitors, the 9th power filter
Electric capacity C9 can use such as 0.1 μ F ceramic disc capacitors, and the first crystal oscillator Y1 can use such as 8MHz crystal oscillators,
First indicator lamp LED1, the second indicator lamp LED2 are preferred to use LED, and the first plug-in unit ICSP can be adopted
With the plug-in unit of for example single 6 pin, the first microcontroller U1 can use such as dsPIC33EP512GM706
Processor.
In embodiment as shown in Figure 5, interface module 40 is mainly used to calculate micro-control circuit 30
Imaging sector data output give outer application system (not shown), for example output result can with it is corresponding
Resistivity, gamma, the neutron density testing result of sector are combined, complete final resistivity logging while drilling, gamma,
Neutron density imaging measurement.The circuit mainly includes：First filter capacitor C0, the second filter capacitor C10,
One electrical level transferring chip U2, the first plug-in unit P1.Wherein, the first filter capacitor C0 is used for the first plug-in unit P1
Power filter, the second filter capacitor C10 is used for the first electrical level transferring chip U2 power filter, first
Electrical level transferring chip U2 is used for UART signal being converted to RS485 signals, and the first plug-in unit P1 is used for providing
The interface of signal (such as RS485 signals) is transmitted to outer application system.
Specifically, first filter capacitor C0 one end and the first plug-in unit P1 the 1st pin connection 5V power supplys, the
The one filter capacitor C0 other ends are grounded；Second filter capacitor C10 one end and the first electrical level transferring chip U2
The 8th pin connection 5V power supplys, the second filter capacitor C10 other ends ground connection；First electrical level transferring chip U2
The 1st pin be connected with the first microcontroller U1 the 34th pin, the first electrical level transferring chip U2 the 2nd pin,
3rd pin is connected with the pin of the first microcontroller 35, the first electrical level transferring chip U2 the 4th pin and the first microcontroller
The pin of device 33 is connected, the first electrical level transferring chip U2 the 5th pin ground connection, and the of the first electrical level transferring chip U2
6 pin are connected with the first plug-in unit P1 the 4th pin, the first electrical level transferring chip U2 the 7th pin and the first plug-in unit P1
The 3rd pin connection, the first plug-in unit P1 the 2nd pin ground connection.
When it is implemented, interface module 40 is preferably configured as 485 serial interface circuit modules.Wherein,
First filter capacitor C0 can use such as 0.1 μ F ceramic disc capacitors, and the second filter capacitor C10 can use example
Such as 0.1 μ F ceramic disc capacitors, the first electrical level transferring chip U2 can use such as MAX3485 electrical level transferring chips,
UART signal is converted into RS485 signals, the first plug-in unit P1 can use for example single 4 pin insert.
In embodiment as shown in Figure 6, biasing is mainly used to according to control circuit mould with reset circuit module 50
The control instruction that block 30 is exported carries out HVB high voltage bias to magnetic field induction and signal amplification circuit module 10 and reset is put
Position.The circuit mainly includes：First resistor R11, second resistance R12, the first electric capacity C23, the second electric capacity
C24, the 3rd filter capacitor C25, the 4th filter capacitor C26, the 5th filter capacitor C27, the 6th filter capacitor
C28, the 7th filter capacitor C29, the 8th filter capacitor C30, the 9th filter capacitor C31, the first 5V turn 12V
Electric pressure converter U10, the first driver U9.Wherein, first resistor R11, second resistance R12 effect
It is control multiplication factor, the first electric capacity C23, the second electric capacity C24, the 3rd filter capacitor C25, the 4th filtering
Electric capacity C26 effect is power filter, and the 5th filter capacitor C27 effect is filtering, the 6th filter capacitor
C28, the 7th filter capacitor C29 effect are signal filterings, the 8th filter capacitor C30, the 9th filter capacitor C31
Effect be power filter, the effect that the first 5V turns 12V electric pressure converters U10 is to carry out voltage conversion, example
It is 10V voltages such as by 5V voltage conversions, the voltage needed for biased reset, the first driver U9 is realized with offer
Effect be that the control signal that is sent according to the first microcontroller U1 controls the first 5V to turn 12V electric pressure converters
U10 carries out voltage conversion.
Specifically, first resistor R11 one end is connected with the first driver U9 the 3rd pin, first resistor R11
The filter capacitor C27 one end of the other end the 5th is connected；Second resistance R12 one end and the 4th of the first driver U9
Pin is connected, and the second resistance R12 other ends are connected with the 6th filter capacitor C28 one end；First electric capacity C23 mono-
End is connected with the first 5V the 1st pin for turning 12V electric pressure converters U10, the first electric capacity C23 other ends and first
5V turns 12V electric pressure converters U10 the 2nd pin connection；Second electric capacity C24 one end turns 12V with the first 5V
Electric pressure converter U10 the 3rd pin connection, the second electric capacity C24 other ends and the first 5V turn 12V voltage conversions
Device U10 the 4th pin connection；3rd filter capacitor C25 one end turns 12V electric pressure converters U10 with the first 5V
The connection of the 5th pin, the 3rd filter capacitor C25 other ends and the first 5V turn the of 12V electric pressure converters U10
6 pin are connected；4th filter capacitor C26 one end connects with the first 5V the 5th pin for turning 12V electric pressure converters U10
Connect, the 4th filter capacitor C26 other ends ground connection；5th filter capacitor C27 one end turns 12V electricity with the first 5V
Pressure converter U10 the 6th pin connection, the 5th filter capacitor C27 other ends ground connection；6th filter capacitor C28
One end is connected with the first 5V the 6th pin for turning 12V electric pressure converters U10, the 6th filter capacitor C28 other ends
It is connected with the first microcontroller U1 the 49th pin；7th filter capacitor C29 one end is with the first driver U9's
3rd pin is connected, the 7th filter capacitor C29 other ends ground connection；8th filter capacitor C30 one end and 5V power supplys
Connection, the 8th filter capacitor C30 other ends ground connection；9th filter capacitor C31 one end is connected with 5V power supplys,
The 9th filter capacitor C31 other ends are grounded；First 5V turns 12V electric pressure converters U10 the 7th pin, the 8th
Pin is grounded；First driver U9 the 1st pin ground connection, the first driver U9 the 5th pin, the 6th pin, the 7th
Pin, the 8th pin are connected with the first fluxgate sensor U3 the 16th pin.
When it is implemented, biasing can provide the HVB high voltage bias that a 5V turns 12V with reset circuit module 50.
Wherein, first resistor R11 can use such as 10K using such as 10K resistance, second resistance R12
Resistance, the first electric capacity C23 can use such as 1nF electric capacity, and the second electric capacity C24 can use such as 1nF
Electric capacity, the 3rd filter capacitor C25 can use such as 1nF electric capacity, and the 4th filter capacitor C26 can use example
Such as 1nF electric capacity, the 5th filter capacitor C27 can use such as 1nF electric capacity, and the 6th filter capacitor C28 can be with
Using such as 1nF electric capacity, the 7th filter capacitor C29 can use such as 1nF electric capacity, the 8th filter capacitor
C30 can use such as 1nF electric capacity, and the 9th filter capacitor C31 can use such as 1nF electric capacity, the first 5V
Such as MAX662A voltage conversion chips, the first driver U9 can be used by turning 12V electric pressure converters U10
Such as IRF7105 drive amplifications chip can be used.
It is described above, it is only the specific implementation case of the present invention, protection scope of the present invention is not limited thereto,
It is any to be familiar with those skilled in the art in technical specification of the present invention, modifications of the present invention or replace
Change, all should be within protection scope of the present invention.
Claims (10)
1. it is a kind of with being drilled to as sector detection circuit, it is characterised in that including：
Magnetic field induction and signal amplification circuit module, for measuring magnetic field of the earth component, and will characterize magnetic field of the earth
The analog signal amplification output of component；
Analog-to-digital conversion and benchmark buffer circuit module, for the magnetic field induction and signal amplification circuit module is defeated
The analog signal gone out is converted to data signal；
Control circuit module, is buffered for controlling each module coordination to work, and according to the analog-to-digital conversion and benchmark
The data signal of circuit module output is calculated as sector data；
Interface module, for the imaging sector data transfer that exports the control circuit module to others
Application system.
2. it is according to claim 1 with being drilled to as sector detection circuit, it is characterised in that also to include：
Biasing and reset circuit module, for the control instruction that is exported according to the control circuit module to the magnetic
Field sensing performs the operation of HVB high voltage bias and reset-set with signal amplification circuit module.
3. it is according to claim 1 or 2 with being drilled to as sector detection circuit, it is characterised in that：
The magnetic field induction includes two magnetic flux transducers with signal amplification circuit module, is respectively used to measurement two
Angle is in 90 degree of magnetic field of the earth component HxAnd Hy, the control circuit module is calculated according to following formula to be used to divide
The angle, θ of imaging sector：
θ=arctg (Hx/Hy)。
4. it is according to claim 3 with being drilled to as sector detection circuit, it is characterised in that the magnetic field
Sensing also includes with signal amplification circuit module：
Two instrumentation amplifiers, for amplifying the sign magnetic field of the earth component that described two magnetic flux transducers are exported
Analog signal；
Some resistance being connected with described two instrumentation amplifiers, for controlling putting for described two instrumentation amplifiers
Big multiple.
5. it is according to claim 1 or 2 with being drilled to as sector detection circuit, it is characterised in that described
Analog-to-digital conversion includes with benchmark buffer circuit module：
Two single operational amplifiers, for amplifying the simulation that the magnetic field induction is exported with signal amplification circuit module
Signal；
Some resistance being connected with described two single operational amplifiers, for controlling described two single operational amplifiers
Multiplication factor；
Analog-digital converter, for the analog signal of described two single operational amplifier amplifications to be converted into digital letter
Number.
6. it is according to claim 1 or 2 with being drilled to as sector detection circuit, it is characterised in that described
Control circuit module includes：
Microcontroller, the central processing unit as the control circuit module, output control is instructed and according to institute
State analog-to-digital conversion and the data signal of benchmark buffer circuit module output is calculated as sector data；
The plug-in unit being connected with the microcontroller, the online serial programming interface as the microcontroller.
7. it is according to claim 1 or 2 with being drilled to as sector detection circuit, it is characterised in that described
Interface module includes：
Electrical level transferring chip, is converted to and can be supplied to for the numerical signal that exports the control circuit module
The transmission signal of outer application system；
The plug-in unit being connected with the electrical level transferring chip, for setting up data transfer with outer application system.
8. it is according to claim 7 with being drilled to as sector detection circuit, it is characterised in that the interface
Circuit module is configured to 485 serial line interfaces.
9. it is according to claim 1 or 2 with being drilled to as sector detection circuit, it is characterised in that described
Biasing includes with reset circuit module：
Electric pressure converter, for carrying out voltage conversion, the voltage needed for biased reset is realized with offer；
The driver electrically connected with the electric pressure converter, for the control sent according to the control circuit module
Signal controls the electric pressure converter to carry out voltage conversion.
10. it is according to claim 2 with being drilled to as sector detection circuit, it is characterised in that：
The magnetic field induction and signal amplification circuit module, analog-to-digital conversion and benchmark buffer circuit module, control electricity
The electricity to power filter is separately provided in road module, interface module, biasing and reset circuit module
Hold, and/or for the electric capacity to signal filtering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610102193.0A CN107120108A (en) | 2016-02-25 | 2016-02-25 | It is a kind of with being drilled to as sector detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610102193.0A CN107120108A (en) | 2016-02-25 | 2016-02-25 | It is a kind of with being drilled to as sector detection circuit |
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| CN107120108A true CN107120108A (en) | 2017-09-01 |
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| CN201610102193.0A Pending CN107120108A (en) | 2016-02-25 | 2016-02-25 | It is a kind of with being drilled to as sector detection circuit |
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Application publication date: 20170901 |