CN207423832U - The detection device of core oil content and moisture content based on electromagnetic signal processing - Google Patents
The detection device of core oil content and moisture content based on electromagnetic signal processing Download PDFInfo
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- CN207423832U CN207423832U CN201721650331.5U CN201721650331U CN207423832U CN 207423832 U CN207423832 U CN 207423832U CN 201721650331 U CN201721650331 U CN 201721650331U CN 207423832 U CN207423832 U CN 207423832U
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Abstract
The utility model discloses the detection device of a kind of core oil content based on electromagnetic signal processing and moisture content, including sample cell, for placing core；Electromagnetic signal transmits detection components, including the first electromagnetic signal source, the first isolator, the first transmitting antenna, the first reception antenna, the second isolator, first detector, the first lock-in amplifier, the first A/D converter；Electromagnetic signal reflects detection components, including the second electromagnetic signal source, the 3rd isolator, the second transmitting antenna, the second reception antenna, the 4th isolator, second detector, the second lock-in amplifier and the first A/D converter.The utility model measures the oil content of core and moisture content using the transmission signal difference and reflected signal difference of electromagnetic wave, easy to operate, it can be achieved that detecting the moisture content and oil content of core simultaneously.
Description
Technical field
The utility model is related to electromagnetic detection analysis technical fields, and in particular to core oil content detects skill with moisture content
Art.
Background technology
With the development of petroleum industry and the progress of production technique, implement the content of effective measurement oil to petroleum industry
There is vital effect, Electromagnetic Wave Detection has simplicity, quickly, convenient for large area tests as new detection method
The advantages that, in industry with being obtained in the detection and evaluation of the engineering construction projects such as civil buildings, water conservancy, electric power, petroleum industry
Extensive use achieves good application effect, and constantly summarizes, improves and improve in engineering practice.
Electromagnetic wave can Free propagation in space, there is Electric Field Characteristics and magnetic signature, therefore measure declining for electromagnetic wave
Subtract, phase place change, resonant frequency etc. and the relevant physical quantity of dielectric constant, so that it may measure moisture content and oil content.And it non-connects
The precision of tactile measurement is high, good reliability, strong antijamming capability, easy to implement lossless and radiationless danger, operates and using non-
Chang Anquan, therefore microwave noncontact measurement has extremely wide application prospect.
Utility model content
The technical problem to be solved by the utility model is to provide it is a kind of based on electromagnetic signal processing core oil content and
The detection device of moisture content improves detection efficiency.
In order to solve the above technical problems, the utility model adopts the following technical solution：Core based on electromagnetic signal processing
The detection device of oil content and moisture content, including,
Sample cell, for placing core；
Electromagnetic signal transmits detection components, including the first electromagnetic signal source, the first isolator, the first transmitting antenna, first
Reception antenna, the second isolator, first detector, the first lock-in amplifier, the first A/D converter, wherein, the first electromagnetic signal
Source sends electromagnetic signal, is transmitted to the first isolator, and then electromagnetic signal is transmitted to the input of the first transmitting antenna through transmission line
It on end, is then transmitted on the core of sample cell, an electromagnetic signal part is transmitted through core and received by the first reception antenna, through passing
Defeated line is transported on the second isolator, then is transferred to first detector and is carried out electromagnetic signal amplitude adjusted, then by the first detection
The electromagnetic signal that device was adjusted enters the first lock-in amplifier, signal is amplified, finally by the signal transmission of amplification to the first A/D
Converter is converted to digital simulation amount；
Electromagnetic signal reflects detection components, including the second electromagnetic signal source, the 3rd isolator, the second transmitting antenna, second
Reception antenna, the 4th isolator, second detector, the second lock-in amplifier and the first A/D converter, wherein, the second electromagnetism
Signal source sends electromagnetic signal, is transmitted to the 3rd isolator, and then electromagnetic signal is transmitted to the second transmitting antenna through transmission line
On input terminal, the core of sample cell is then transmitted to, an electromagnetic signal part is reflected through core to be received by the second reception antenna, warp
Transmission line is transported on the 4th isolator, then is transferred to second detector and is carried out electromagnetic signal amplitude adjusted, then by the second inspection
The electromagnetic signal that ripple device was adjusted enters the second lock-in amplifier, signal is amplified, finally by the signal transmission of amplification to second
The signal of amplification is converted to digital simulation amount by A/D converter.
Further, shell is further included, the shell is equipped with side fixing bracket in the left and right sides of inner upper, and described the
One electromagnetic signal source, the first isolator, the first transmitting antenna are installed on the fixing bracket of left side, first reception antenna, the
Two isolators, first detector, the first lock-in amplifier, the first A/D converter are installed on the fixing bracket of right side, the both sides
It is respectively equipped with the first substrate and second substrate for fixing the first transmitting antenna and the first reception antenna on fixing bracket, described first
Substrate and second substrate is contour is vertically arranged.
Further, intermediate support plate is equipped between the both sides fixing bracket, the middle part of the intermediate support plate is equipped with
It raises up and is used to place the intermediate supports platform of sample cell, the middle part of the intermediate supports platform is equipped with loophole, described
Intermediate supports platform is internally provided with hollow cavity.
Further, the shell is equipped with intermediate support in lower inside, divides at left and right sides of the top of the intermediate support
It She You not be inclined upwardly and extend to the 3rd substrate and tetrabasal of madial wall at left and right sides of intermediate supports platform, the 3rd base
Plate and tetrabasal are respectively used to fix the second transmitting antenna and the second reception antenna, second electromagnetic signal source, the 3rd every
From device, lower left inside the housing, the 4th isolator, second detector, the second lock-in amplifier and the first A/ are set
D converters set lower right inside the housing.
Further, the wavelength of the first electromagnetic signal source transmission of electromagnetic signals is 1900nm, the second electromagnetism letter
The wavelength of number source transmission of electromagnetic signals is 682nm.
Further, first electromagnetic signal source and the second electromagnetic signal source are using f=10GHz, output power
For the point frequency solid-state electromagnetic signal source of 34mW.
Further, the computer processing system being connected with the first A/D converter and the second A/D converter, institute are further included
The moisture content that computer processing system calculates core according to the microwave attenuation theory of testing is stated, it is anti-according to voltage and electromagnetic signal
The relation for penetrating difference calculates the oil content of core.
The technical solution adopted in the utility model measures core using the transmission signal difference and reflected signal difference of electromagnetic wave
Oil content and moisture content, it is easy to operate, it can be achieved that detecting the moisture content and oil content of core simultaneously.
Description of the drawings
Fig. 1 is the structure diagram of the utility model；
Fig. 2 is the line map of electromagnetic signal transmission and reflection in the utility model；
Fig. 3 is the Electromgnetically-transparent method structure chart that core moisture content detects in the utility model；
Fig. 4 is the echolation structure chart that core oil content detects in the utility model；
In figure：1-the first electromagnetic signal source, the 2-the first isolator, the 3-the first transmitting antenna, 4-sample cell, 5-the
One reception antenna, the 6-the second isolator, 7-first detector, the 8-the first lock-in amplifier, the 9-the first A/D converter,
10-computer processing system, the 11-the second electromagnetic signal source, the 12-the three isolator, the 13-the second transmitting antenna, 14-the
Two reception antennas, the 15-the four isolator, 16-second detector, the 17-the second lock-in amplifier, the 18-the two A/D conversions
Device, 19-first substrate, 20-shell, 21-second substrate, the 22-the three substrate, the 23-the tetrabasal.
Specific embodiment
Electromagnetic Wave Detection technology is applied to the quick measure of shale oil content in oil shale by the utility model, provides one kind
The detection device of core oil content and moisture content based on electromagnetic signal processing, including,
Sample cell 4, for placing core；
Electromagnetic signal transmits detection components, including the first electromagnetic signal source 1, the first isolator 2, the first transmitting antenna 3, the
One reception antenna 5, the second isolator 6, first detector 7, the first lock-in amplifier 8, the first A/D converter 9, wherein, first
Electromagnetic signal source sends electromagnetic signal, is transmitted to the first isolator, and then electromagnetic signal is transmitted to the first transmitting day through transmission line
It on the input terminal of line, is then transmitted on the core of sample cell, an electromagnetic signal part is transmitted through core by the first reception antenna
It receives, is transported to through transmission line on the second isolator, then be transferred to first detector and carry out electromagnetic signal amplitude adjusted, Ran Houyou
The electromagnetic signal that first detector was adjusted enters the first lock-in amplifier, signal is amplified, finally by the signal transmission of amplification
To the first A/D converter, digital simulation amount is converted to；
Electromagnetic signal reflects detection components, including the second electromagnetic signal source 11, the 3rd isolator 12, the second transmitting antenna
13rd, the second reception antenna 14, the 4th isolator 15, second detector 16, the second lock-in amplifier 17 and the first A/D converter
18, wherein, the second electromagnetic signal source sends electromagnetic signal, is transmitted to the 3rd isolator, and then electromagnetic signal is transmitted through transmission line
Onto the input terminal of the second transmitting antenna, the core of sample cell is then transmitted to, an electromagnetic signal part is reflected through core by the
Two reception antennas receive, and are transported to through transmission line on the 4th isolator, then are transferred to second detector and carry out electromagnetic signal amplitude
It adjusts, then signal is amplified, will finally be amplified into the second lock-in amplifier by the electromagnetic signal that second detector was adjusted
Signal transmission to the second A/D converter, the signal of amplification is converted into digital simulation amount.
In addition, further include shell 20, the shell is equipped with side fixing bracket in the left and right sides of inner upper, described first
Electromagnetic signal source 1, the first isolator 2, the first transmitting antenna 3 are installed on the fixing bracket of left side, first reception antenna 5,
Second isolator 6, first detector 7, the first lock-in amplifier 8, the first A/D converter 9 are installed on the fixing bracket of right side, institute
State the first substrate 19 and second substrate for being respectively equipped on the fixing bracket of both sides and fixing the first transmitting antenna and the first reception antenna
21, the first substrate and second substrate is contour is vertically arranged.Intermediate support plate is equipped between the both sides fixing bracket, it is described
The middle part of intermediate support plate is equipped with the intermediate supports platform to raise up and for placing sample cell, the intermediate supports platform
Middle part is equipped with loophole, and the intermediate supports platform is internally provided with hollow cavity.The shell is equipped with intermediate prop up in lower inside
Frame, is respectively arranged on the left side and the right side at the top of the intermediate support to be inclined upwardly and extends to madial wall at left and right sides of intermediate supports platform
The 3rd substrate 22 and tetrabasal 23, the 3rd substrate and tetrabasal be respectively used to fix the second transmitting antenna 13 and
Two reception antennas 14, second electromagnetic signal source 11, the 3rd isolator 12 set lower left inside the housing, and the described 4th
Isolator 15, second detector 16, the second lock-in amplifier 17 and the first A/D converter 18 set the lower section right side inside the housing
Side.
Wherein, first isolator, the second isolator, the 3rd isolator, the 4th isolator use packaged type, both
It is capable of the influence of the powered down small reflection of magnetic signal, in turn ensures the complete transmission of electromagnetic signal.The first electromagnetic signal source transmitting
The wavelength of electromagnetic signal is 1900nm, and the wavelength of the second electromagnetic signal source transmission of electromagnetic signals is 682nm.Described first
Electromagnetic signal source and the second electromagnetic signal source use the point frequency solid-state electromagnetic signal source of f=10GHz, output power for 34mW.
With output amplitude stablize, waveform distortion factor is low, it is easy to use the characteristics of.First detector and second detector are waveguide type inspections
Ripple device, by recovering that signal passed to lock-in amplifier after modulated signal, the output of lock-in amplifier is a DC voltage, energy
The very low weak electromagnetic signal of enough detection signal-to-noise ratios.First transmitting antenna and the second transmitting antenna is to send out electromagnetic signal
Core face is mapped to, in order to avoid interfering with each other in electromagnetic signal incidence and reflection process, takes the incidence side of incoming signal
To incidence at an angle.
In addition, further including the computer processing system 10 being connected with the first A/D converter and the second A/D converter, calculate
Machine is furnished with data collecting card, BNG matching devices and PLC programmable logic controller (PLC)s, and PLC programmable logic controller (PLC)s decline according to microwave
The subtraction theory of testing calculates the moisture content of core, and the oil-containing of core is calculated according to the relation of voltage and electromagnetic signal difference in reflection
Rate.
With reference to shown in figure 1, Fig. 2 and Fig. 3, electromagnetic signal transmits the step of detecting core moisture content and is：
Electromagnetic signal is sent by the first electromagnetic signal source 1, is transmitted to the complete biography that the first isolator 2 ensure that electromagnetic signal
It is defeated；Electromagnetic signal is transmitted to minimum loss on the input terminal of the first transmitting antenna 3 through transmission line afterwards, after be transmitted to sample cell
On 4 core.
An electromagnetic signal part is transmitted through core and received by the first reception antenna 5, is conveyed through transmission line with minimum loss
Onto the second isolator 6, then it is transferred to first detector 7 and carries out electromagnetic signal amplitude adjusted.
By the electromagnetic signal that first detector 7 was adjusted into the first lock-in amplifier 8, signal is amplified, will finally be put
Big signal transmission is converted to digital simulation amount to the first A/D converter 9.
Data collection and processing are finally carried out, PLC programmable logic controller (PLC)s are calculated according to the microwave attenuation theory of testing
Go out the moisture content of core.
Microwave attenuation hygrometric theoretical calculation is as follows：
Propagation constant γ=α+j the β of electromagnetic wave in the dielectric material, when electromagnetic wave by thickness be d dielectric material
When, attenuation is：
One timing of material thickness, microwave can be decayed by energy after material；
It can verify, if can be measured to the electromagnetic wave energy of attenuation, containing for core can be drawn after data processing
Water rate, the attenuation A of electromagnetic wave：
Electromagnetic wave energy is after composite dielectric material, impedance value R1, R2It is constant, therefore formula (3) can be reduced to：
Attenuation can be obtained by the variable quantity for measuring electromagnetic wave voltage value before and after attenuation, so as to calculate core
Moisture content.
With reference to shown in figure 1, Fig. 2 and Fig. 4, electromagnetic signal reflects the step of detecting core oil content and is：
Electromagnetic signal is sent by the second electromagnetic signal source 11, the 3rd isolator 12 is transmitted to and ensure that the complete of electromagnetic signal
Transmission；Electromagnetic signal is transmitted to minimum loss on the input terminal of the second transmitting antenna 13 through transmission line afterwards, after be transmitted to sample
The core in product pond 4.
An electromagnetic signal part is reflected through core to be received by the second reception antenna 14, is conveyed through transmission line with minimum loss
Onto the 4th isolator 15, then it is transferred to second detector 16 and carries out electromagnetic signal amplitude adjusted.
By the electromagnetic signal that second detector 16 was adjusted into the second lock-in amplifier 17, signal is amplified, finally will
The signal of amplification is converted to digital simulation amount by the signal transmission of amplification to the second A/D converter 18.
Data collection and processing are finally carried out, through PLC programmable logic controller (PLC)s according to voltage and electromagnetic signal difference in reflection
Relation calculate the oil content of core.
The relation computational methods of voltage and electromagnetic signal difference in reflection：
Propagation constant γ=α+j the β of electromagnetic wave in the dielectric material, when electromagnetic wave by thickness be d dielectric material
When, attenuation is：
One timing of material thickness, microwave can be decayed by energy after material；
When electromagnetic wave by material thickness is to cause the measuring method of phase shift when d is definite value, equation can be provided such as
Under:
β is phase constant when electromagnetic wave passes through measured material in formula, β0It is aerial phase constant, at this moment phaseJust change with phase constant β.Electromagnetic wave can be obtained by the reflectance factor Γ of measured material from equation below:
So by above formula (4) can acquire it is calibrated after electromagnetic wave attenuation amount A'：
Attenuation can be obtained by the variable quantity for measuring electromagnetic wave voltage value before and after attenuation, and calculate containing for core
Oil cut rate.
Electromagnetic Wave Detection technology is applied to the quick measure of shale oil content in oil shale by the utility model, is expected in reality
With the shortcomings such as the conventional methods efficiency such as low temperature distillation method is low are made up in property, become the new of core oil content on-site rapid measurement
Method, for China's oil resource, deeply evaluation provides a kind of highly efficient, conveniently, practical quick detection means on a large scale.
Claims (6)
1. the detection device of core oil content and moisture content based on electromagnetic signal processing, it is characterised in that including,
Sample cell, for placing core；
Electromagnetic signal transmits detection components, is received including the first electromagnetic signal source, the first isolator, the first transmitting antenna, first
Antenna, the second isolator, first detector, the first lock-in amplifier, the first A/D converter, wherein, the first electromagnetic signal source hair
Go out electromagnetic signal, be transmitted to the first isolator, then electromagnetic signal is transmitted to through transmission line on the input terminal of the first transmitting antenna,
Then it is transmitted on the core of sample cell, an electromagnetic signal part is transmitted through core and received by the first reception antenna, through transmission line
It is transported on the second isolator, then is transferred to first detector and carries out electromagnetic signal amplitude adjusted, then by first detector tune
The electromagnetic signal saved enters the first lock-in amplifier, and signal is amplified, finally converts the signal transmission of amplification to the first A/D
Device is converted to digital simulation amount；
Electromagnetic signal reflects detection components, is received including the second electromagnetic signal source, the 3rd isolator, the second transmitting antenna, second
Antenna, the 4th isolator, second detector, the second lock-in amplifier and the first A/D converter, wherein, the second electromagnetic signal
Source sends electromagnetic signal, is transmitted to the 3rd isolator, and then electromagnetic signal is transmitted to the input of the second transmitting antenna through transmission line
On end, the core of sample cell is then transmitted to, an electromagnetic signal part is reflected through core to be received by the second reception antenna, through transmission
Line is transported on the 4th isolator, then is transferred to second detector and is carried out electromagnetic signal amplitude adjusted, then by second detector
The electromagnetic signal adjusted enters the second lock-in amplifier, and signal is amplified, and finally turns the signal transmission of amplification to the 2nd A/D
The signal of amplification is converted to digital simulation amount by parallel operation.
2. the detection device of core oil content and moisture content according to claim 1 based on electromagnetic signal processing, special
Sign is：Shell is further included, the shell is equipped with side fixing bracket, first electromagnetic signal in the left and right sides of inner upper
Source, the first isolator, the first transmitting antenna are installed on the fixing bracket of left side, first reception antenna, the second isolator, the
One wave detector, the first lock-in amplifier, the first A/D converter are installed on the fixing bracket of right side, on the both sides fixing bracket
It is respectively equipped with the first substrate and second substrate for fixing the first transmitting antenna and the first reception antenna, the first substrate and second
Substrate is contour to be vertically arranged.
3. the detection device of core oil content and moisture content according to claim 2 based on electromagnetic signal processing, special
Sign is：Intermediate support plate is equipped between the both sides fixing bracket, the middle part of the intermediate support plate, which is equipped with, to raise up simultaneously
For placing the intermediate supports platform of sample cell, the middle part of the intermediate supports platform is equipped with loophole, and the intermediate supports are put down
Platform is internally provided with hollow cavity.
4. the detection device of core oil content and moisture content according to claim 3 based on electromagnetic signal processing, special
Sign is：The shell is equipped with intermediate support in lower inside, is respectively arranged on the left side and the right side at the top of the intermediate support upwards
Tilt the 3rd substrate and tetrabasal for extending to madial wall at left and right sides of intermediate supports platform, the 3rd substrate and the 4th base
Plate is respectively used to fix the second transmitting antenna and the second reception antenna, and second electromagnetic signal source, the 3rd isolator are arranged on
Enclosure lower left, the 4th isolator, second detector, the second lock-in amplifier and the first A/D converter are set
Put lower right inside the housing.
5. the inspection of core oil content and moisture content according to any one of claims 1 to 4, based on electromagnetic signal processing
Survey device, it is characterised in that：The wavelength of the first electromagnetic signal source transmission of electromagnetic signals is 1900nm, the second electromagnetism letter
The wavelength of number source transmission of electromagnetic signals is 682nm.
6. the detection device of core oil content and moisture content according to claim 5 based on electromagnetic signal processing, special
Sign is：First electromagnetic signal source and the second electromagnetic signal source uses the point of f=10GHz, output power for 34mW
Frequency solid-state electromagnetic signal source.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721650331.5U CN207423832U (en) | 2017-12-01 | 2017-12-01 | The detection device of core oil content and moisture content based on electromagnetic signal processing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700811A (en) * | 2019-10-29 | 2020-01-17 | 北京工商大学 | Waveguide phase measurement method and device for water content and flow of oil well |
-
2017
- 2017-12-01 CN CN201721650331.5U patent/CN207423832U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110700811A (en) * | 2019-10-29 | 2020-01-17 | 北京工商大学 | Waveguide phase measurement method and device for water content and flow of oil well |
| CN110700811B (en) * | 2019-10-29 | 2023-04-07 | 北京工商大学 | Waveguide phase measurement method and device for water content and flow of oil well |
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