CN207301137U - A kind of new transient electromagnetic method pulse current radiating circuit - Google Patents
A kind of new transient electromagnetic method pulse current radiating circuit Download PDFInfo
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- CN207301137U CN207301137U CN201721219066.5U CN201721219066U CN207301137U CN 207301137 U CN207301137 U CN 207301137U CN 201721219066 U CN201721219066 U CN 201721219066U CN 207301137 U CN207301137 U CN 207301137U
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Abstract
The utility model discloses a kind of new transient electromagnetic method pulse current radiating circuit, including double wave shape emission system circuit module and series resonant circuit, the double wave shape emission system circuit module includes display setup module, control system module, signal processing circuit module, drive circuit module, inverter bridge circuit module, current monitoring circuit module and high voltage direct current source module, the display setup module is electrically connected by circuit with control system module, the control system module is electrically connected by circuit with signal processing circuit module respectively with current monitoring circuit module, the signal processing circuit module is electrically connected by circuit with drive circuit module.The advantages of transient electromagnetic method pulse current radiating circuit of the utility model, whole circuit takes into account two kinds of transmitted waveforms, while the shortcomings that current double wave shape transmitter circuitry is complicated, and integral device is heavy is overcome, effectively reduce cost.
Description
Technical field
It the utility model is related to aviation electromagnetic detection emission system technical field, especially a kind of new transient electromagnetic method
Pulse current radiating circuit.
Background technology
At this stage, the current waveform that Electro-magnetic Launcher System can provide in the world mainly includes：Trapezoidal wave, square wave, partly just
The advantages of string ripple and triangular wave, these emission systems may only launch a kind of current waveform, can not take into account other current waveforms.Adopt
Launched with half-sine wave and triangular wave, one time field quality is preferable, higher to the resolution capability of shallow-layer geological information.Half-sine wave is also
Deep detection can be carried out by the magnetic moment of increasing.Using trapezoidal wave and square-wave transmission, transmitting magnetic moment is big, signal-to-noise ratio is high, but one
Secondary field quality is poor, strong to the spatial resolving power of deep geologic information, and shallow-layer detectivity is weaker.One kind is so only played
The advantages of transmitted waveform, can there are detection blind area during ground is visited.And the double wave shape emission system that presently, there are, the side of use
Method is that there are sine wave and the radiating circuit of triangular wave (or trapezoidal wave, square wave), public transmitting coil are this at the same time in system
Although method can effectively launch double wave shape, due to needing two sets of radiating circuits, it is necessary to switching circuit, equipment volume and again
Amount is all bigger, and circuit is complicated, it is difficult to controls.
Utility model content
The purpose of this utility model is to provide a kind of new transient electromagnetic method pulse current radiating circuit, there is volume
Smaller, circuit is simple efficiently while the advantages of can take into account two kinds of waveforms, avoid between the radiating circuit of two kinds of waveforms every
From cost being effectively reduced, to solve the problems, such as to mention in above-mentioned background.
To achieve the above object, the utility model provides following technical solution：
A kind of new transient electromagnetic method pulse current radiating circuit, including double wave shape emission system circuit module and series connection
Resonance circuit, the double wave shape emission system circuit module include display setup module, control system module, signal processing circuit
Module, drive circuit module, inverter bridge circuit module, current monitoring circuit module and high voltage direct current source module, the display
Setup module is electrically connected by circuit with control system module, and the control system module is led to respectively with current monitoring circuit module
Oversampling circuit is electrically connected with signal processing circuit module, and the signal processing circuit module is electrically connected by circuit and drive circuit module
Connect, the drive circuit module is electrically connected by circuit with inverter bridge circuit module respectively with high voltage direct current source module, inversion
Bridge circuit module is also electrically connected with absorption protection circuit module by circuit respectively and transmitting coil, the transmitting coil pass through electricity
Road is electrically connected with current monitoring circuit module, and transmitting coil is also electrically connected with overshoot by circuit and eliminates circuit.
Preferably, the series resonant circuit is by direct voltage source E, capacitance C1, capacitance C2, thyristor T1 and thyristor T2
Composition, capacitance C1 are connected in parallel on the positive and negative closed circuit being extremely connected of direct voltage source E with capacitance C2, thyristor T1 and crystalline substance
Brake tube T2 is connected in parallel on the side of direct voltage source E by parallel circuit.
Preferably, electricity is also electrically connected with by series arm on the parallel circuit where the thyristor T1 and thyristor T2
Hinder R1, capacitance C and inductance L1.
Preferably, the side of the thyristor T1 is also parallel with igbt transistor T3, inductance L2 and electricity by parallel circuit
Hinder R2.
Preferably, the side of the thyristor T2 is also parallel with igbt transistor T4, inductance L3 and electricity by parallel circuit
Hinder R3.
Compared with prior art, the utility model beneficial effect：
The transient electromagnetic method pulse current radiating circuit of the utility model, can launch two kinds of current waveforms by transmitting coil,
Bi-polar half sine wave emission current is conducive to deep detection, and radio-frequency component contained by the trapezoidal electric current of bipolarity is relatively abundanter, favorably
The advantages of being detected in superficial part, integrating the two transmitted waveforms, chooses bi-polar half sine wave and the trapezoidal current wave conduct of bipolarity
Transmitted wave, to reduce detection blind area；The advantages of whole circuit takes into account two kinds of transmitted waveforms, while overcome current double wave shape transmitting
The shortcomings that electromechanical road is complicated, and integral device is heavy, effectively reduces cost.
Brief description of the drawings
Fig. 1 is the double wave shape emission system schematic diagram of the utility model；
Fig. 2 is the series resonant circuit schematic diagram of the utility model；
Fig. 3 is the double wave shape emission current oscillogram of the utility model；
Fig. 4 is the trapezoidal wave figure of the utility model.
In figure：1 double wave shape emission system circuit module, 2 display setup modules, 3 control system modules, 4 signal processings electricity
Road module, 5 drive circuit modules, 6 inverter bridge circuit modules, 7 current monitoring circuit modules, 8 high voltage direct current source modules, 9 are inhaled
Receive protection circuit module, 10 transmitting coils, 11 overshoots and eliminate circuit, 12 series resonant circuits.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
- 4 are please referred to Fig.1, the utility model provides a kind of technical solution：A kind of new transient electromagnetic method pulse current hair
Transmit-receive radio road, including double wave shape emission system circuit module 1 and series resonant circuit 12, double wave shape emission system circuit module 1 wrap
Include display setup module 2, control system module 3, signal processing circuit module 4, drive circuit module 5, inverter bridge circuit module
6th, current monitoring circuit module 7 and high voltage direct current source module 8, display setup module 2 pass through circuit and the electricity of control system module 3
Connection, control system module 3 are electrically connected by circuit with signal processing circuit module 4 respectively with current monitoring circuit module 7, are believed
Number processing circuit module 4 is electrically connected by circuit with drive circuit module 5, drive circuit module 5 and high voltage direct current source module 8
It is electrically connected respectively by circuit with inverter bridge circuit module 6, inverter bridge circuit module 6 is also electrically connected with absorption by circuit respectively
Circuit module 9 and transmitting coil 10 are protected, by protecting the power resistor in circuit module 9 to absorb in radiating circuit by absorbing
Overcurrent and disturbance, so as to avoid component damage, transmitting coil 10 is electrically connected by circuit with current monitoring circuit module 7,
Transmitting coil 10 is also electrically connected with overshoot by circuit and eliminates circuit 11, reverse by rushing appearance in elimination 11 circuit of circuit
During electric current, current energy consumes in circuit is overshooted.
Series resonant circuit 12 is made of direct voltage source E, capacitance C1, capacitance C2, thyristor T1 and thyristor T2, capacitance
C1 is connected in parallel on the positive and negative closed circuit being extremely connected of direct voltage source E with capacitance C2, passes through C2 pairs of capacitance C1 and capacitance
The electric current of input carries out energy storage pressure stabilizing, and thyristor T1 and thyristor T2 is connected in parallel on the side of direct voltage source E by parallel circuit,
The starting and end of sine wave are controlled by thyristor T1 and thyristor T2, the side of thyristor T1 is also in parallel by parallel circuit
Have igbt transistor T3, inductance L2 and a resistance R2, the side of thyristor T2 also by parallel circuit be parallel with igbt transistor T4,
Inductance L3 and resistance R3, the waveform of trapezoidal wave is controlled by igbt transistor T3 and igbt transistor T4, and by inductance L2 and electricity
Hinder the steep that R2 and inductance L3 and resistance R3 adjusts the trapezoidal wave ascent stage, in parallel electricity of the thyristor T1 where with thyristor T2
Resistance R1, capacitance C and inductance L1 are also electrically connected with by series arm on road.
The transient electromagnetic method pulse current radiating circuit of the utility model, by showing that setup module 2 sets the frequency of waveform, ladder
The upper lower threshold value of shape popin top section, subsequent control system module 3 is according to algorithm, setting sine wave period, trapezoidal wave flat-top section
Duty cycle, so as to achieve the purpose that electric current is first removed in control transmitting；And drive circuit module 5 boosts the signal of control circuit, and
Resistance and thyristor are sent to, plays the role of isolating high-tension circuit and low-voltage circuit via resistance and thyristor, so as to protect
The component of control section；Also, due to the bulky capacitor in parallel of high voltage direct current source module 8, play the role of constant pressure, bridge arm can be passed through
Charge to radiating circuit；Meanwhile based on current monitoring circuit module 7, where real-time monitoring resistor R1, inductance L1 and capacitance C
Electric current in series arm, and control system module 3 is fed back to, so as to adjust trapezoidal wave electric current, while also avoid electric current excessive
Damage component.
The transient electromagnetic method pulse current radiating circuit of the utility model, can launch two kinds of current waves by transmitting coil 10
Shape, bi-polar half sine wave emission current are conducive to deep detection, and radio-frequency component contained by the trapezoidal electric current of bipolarity is relatively abundanter, has
The advantages of being detected beneficial to superficial part, integrating the two transmitted waveforms, chooses bi-polar half sine wave and the trapezoidal current wave of bipolarity is made
For transmitted wave, to reduce detection blind area；The advantages of whole circuit takes into account two kinds of transmitted waveforms, while overcome current double wave shape hair
The shortcomings that electromechanical road is complicated, and integral device is heavy is penetrated, effectively reduces cost.
The above, is only the preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical solution and its improvement design is subject to equivalent substitution or change, should all cover in the scope of protection of the utility model
It is interior.
Claims (5)
1. a kind of new transient electromagnetic method pulse current radiating circuit, including double wave shape emission system circuit module (1) and string
Join resonance circuit (12), it is characterised in that：The double wave shape emission system circuit module (1) includes display setup module (2), control
System module (3) processed, signal processing circuit module (4), drive circuit module (5), inverter bridge circuit module (6), current monitoring
Circuit module (7) and high voltage direct current source module (8), the display setup module (2) pass through circuit and control system module (3)
It is electrically connected, the control system module (3) passes through circuit and signal processing circuit module respectively with current monitoring circuit module (7)
(4) it is electrically connected, the signal processing circuit module (4) is electrically connected by circuit with drive circuit module (5), the drive circuit
Module (5) is electrically connected by circuit with inverter bridge circuit module (6) respectively with high voltage direct current source module (8), inversion bridge circuit
Module (6) is also electrically connected with absorption protection circuit module (9) and transmitting coil (10), the transmitting coil by circuit respectively
(10) it is electrically connected by circuit with current monitoring circuit module (7), transmitting coil (10) is also electrically connected with overshoot by circuit and disappears
Except circuit (11).
A kind of 2. new transient electromagnetic method pulse current radiating circuit according to claim 1, it is characterised in that：It is described
Series resonant circuit (12) is made of direct voltage source E, capacitance C1, capacitance C2, thyristor T1 and thyristor T2, capacitance C1 and electricity
Hold C2 to be connected in parallel on the positive and negative closed circuit extremely connected of direct voltage source E, thyristor T1 passes through in parallel with thyristor T2
Circuit in parallel is in the side of direct voltage source E.
A kind of 3. new transient electromagnetic method pulse current radiating circuit according to claim 2, it is characterised in that：It is described
Resistance R1, capacitance C and inductance L1 are also electrically connected with by series arm on parallel circuit where thyristor T1 and thyristor T2.
A kind of 4. new transient electromagnetic method pulse current radiating circuit according to claim 2, it is characterised in that：It is described
The side of thyristor T1 is also parallel with igbt transistor T3, inductance L2 and resistance R2 by parallel circuit.
A kind of 5. new transient electromagnetic method pulse current radiating circuit according to claim 2, it is characterised in that：It is described
The side of thyristor T2 is also parallel with igbt transistor T4, inductance L3 and resistance R3 by parallel circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219066.5U CN207301137U (en) | 2017-09-21 | 2017-09-21 | A kind of new transient electromagnetic method pulse current radiating circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721219066.5U CN207301137U (en) | 2017-09-21 | 2017-09-21 | A kind of new transient electromagnetic method pulse current radiating circuit |
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| Publication Number | Publication Date |
|---|---|
| CN207301137U true CN207301137U (en) | 2018-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721219066.5U Expired - Fee Related CN207301137U (en) | 2017-09-21 | 2017-09-21 | A kind of new transient electromagnetic method pulse current radiating circuit |
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| CN (1) | CN207301137U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866835A (en) * | 2021-11-10 | 2021-12-31 | 吉林大学 | Electromagnetic emission system with time domain three-waveform combination and control method |
-
2017
- 2017-09-21 CN CN201721219066.5U patent/CN207301137U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113866835A (en) * | 2021-11-10 | 2021-12-31 | 吉林大学 | Electromagnetic emission system with time domain three-waveform combination and control method |
| CN113866835B (en) * | 2021-11-10 | 2023-07-14 | 吉林大学 | Electromagnetic emission system combining time domain three waveforms and control method |
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Granted publication date: 20180501 Termination date: 20180921 |
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| CF01 | Termination of patent right due to non-payment of annual fee |