CN204371303U - A kind of drilling applications magnetic induction signal processing module - Google Patents
A kind of drilling applications magnetic induction signal processing module Download PDFInfo
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- CN204371303U CN204371303U CN201420697992.3U CN201420697992U CN204371303U CN 204371303 U CN204371303 U CN 204371303U CN 201420697992 U CN201420697992 U CN 201420697992U CN 204371303 U CN204371303 U CN 204371303U
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- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A kind of drilling applications magnetic induction signal processing module, be made up of excitation power supply circuit part, 3 tunnel magnetic induction circuitry for signal measurement parts, bias voltage source part and temperature sensor section, have that volume is little, power consumption is little, circuit is simple, without the need to building complicated loaded down with trivial details demodulator circuit, antijamming capability is strong, have that accuracy of detection is high, reliability is high, good stability, high temperature resistant, the advantages such as convenient debugging.
Description
Technical field
The utility model belongs to petroleum drilling engineering field, particularly a kind of drilling applications magnetic induction signal processing module.
Background technology
At present, in China's oil drilling well industry, generally use fluxgate sensor as the important sensor of underground survey device.Geomagnetic signal measured by general employing 3 single shaft fluxgate sensors, output due to single shaft fluxgate sensor is the AC carrier signal of more complicated, need to build the complicated loaded down with trivial details fluxgate sensor signal processing circuit in 3 roads, comprise: signal amplification circuit, signal rectifier circuit, signal transformation circuit, low-pass filter circuit, integrating circuit etc., the device that needs are used is more, cause that circuit power consumption is large, cost is high, circuit is complicated, easily occur Problem of Failure.And magnetic induction signal processing module only has a large packaged chip size, volume is little, do not need to build complicated circuit, power consumption own is much smaller than complexity No. 3 fluxgate sensor signal processing circuit of building, reliability is high, overall performance is better than complexity No. 3 fluxgate sensor signal processing circuit of building far away.
In order to solve, the complicated No. 3 fluxgate sensor signal processing circuit costs of use are high, circuit power consumption large and easily occur Problem of Failure, select 1 piece of magnetic induction signal processing module, can avoid appeal problem.
Utility model content
The purpose of this utility model is to provide a kind of drilling applications magnetic induction signal processing module.Effectively can improve the precision of underground survey device, strengthen antijamming capability, increase the reliability of instrument, significantly save product cost, make the underground survey device at place have more the market competitiveness.
The technical solution of the utility model is: a kind of drilling applications magnetic induction signal processing module, comprise excitation power supply circuit, 3 tunnel magnetic induction circuitry for signal measurement, bias voltage source part and temperature sensor section, excitation power supply circuit comprises oscillation frequency generator, frequency of oscillation regulating circuit, frequency dividing circuit and expansion current circuit; 3 tunnel magnetic induction circuitry for signal measurement parts comprise selective frequency amplifier circuit, phase-sensitive detection circuit, integral element and feedback element; Bias voltage source part comprises bias voltage generator and bias voltage regulator circuit; Temperature sensor section comprises temperature sensor chip and periphery configure circuit; Described oscillation frequency generator exports the pulse signal of certain frequency, then through frequency dividing circuit with after expanding current circuit, provides power pulses signal to driver transformer; The output signal of fluxgate sensor is chosen out by described selective frequency amplifier circuit from the input signal of multi-frequency; carry out amplification process; then phase-sensitive detection circuit is delivered to; halfwave rectifier is carried out to amplifying signal; the phase place of distinguishing signal and frequency, output low frequency restituted signal after filtering, then through integral element, feedback element; final output DC voltage value, realizes the conversion of fluxgate sensor signal and voltage signal; Described bias voltage generator provides in magnetic induction signal processing module the bias voltage needing to use, and when deviation appears in bias voltage, regulates by bias voltage regulator circuit; Described temperature sensor chip measures the temperature of surrounding environment, converts temperature value to magnitude of voltage, gathers this magnitude of voltage, then according to mathematical formulae, changes out corresponding temperature value.
The beneficial effects of the utility model: this drilling applications magnetic induction signal processing module, adopt highly integrated circuit, realize modularization, realize the process to No. 3 fluxgate sensors, the volume of module own is little, lightweight, power consumption is little, antijamming capability is strong.Improve the precision of underground survey device to Geomagnetic Signal Acquisition process, increase the reliability of instrument, significantly save product cost.
Accompanying drawing explanation
Fig. 1 is internal circuit configuration schematic diagram of the present utility model
In figure, 1 is oscillation frequency generator; 2 is 90 ° of transposition frequency dividing circuits; 3 for expanding current circuit; 4 is frequency of oscillation regulating circuit; 5 is selective frequency amplifier circuit; 6 is phase-sensitive detection circuit; 7 is integral element; 8 is feedback element; 9 is bias voltage source; 10 is bias voltage regulator circuit; 11 is temperature pick up.
Detailed description of the invention
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
A kind of drilling applications magnetic induction signal processing module, comprise excitation power supply circuit, 3 tunnel magnetic induction circuitry for signal measurement, bias voltage source 9 part and temperature pick up 11 part, excitation power supply circuit comprises oscillation frequency generator 1, frequency of oscillation regulating circuit 4, frequency dividing circuit 2 and expands current circuit 3; 3 tunnel magnetic induction circuitry for signal measurement parts comprise selective frequency amplifier circuit 5, phase-sensitive detection circuit 6, integral element 7 and feedback element 8; Bias voltage source 9 part comprises bias voltage generator and bias voltage regulator circuit 10; Temperature pick up 11 part comprises temperature sensor chip and periphery configure circuit; Described oscillation frequency generator 1 exports the pulse signal of certain frequency, then through frequency dividing circuit 2 with after expanding current circuit 3, provides power pulses signal to driver transformer; The output signal of fluxgate sensor is chosen out by described selective frequency amplifier circuit 5 from the input signal of multi-frequency, carry out amplification process, then phase-sensitive detection circuit 6 is delivered to, halfwave rectifier is carried out to amplifying signal, the phase place of distinguishing signal and frequency, output low frequency restituted signal after filtering, then through integral element 7, feedback element 8, final output DC voltage value, realizes the conversion of fluxgate sensor signal and voltage signal; Described bias voltage generator provides in magnetic induction signal processing module the bias voltage needing to use, and when deviation appears in bias voltage, regulates by bias voltage regulator circuit 10; Described temperature sensor chip measures the temperature of surrounding environment, converts temperature value to magnitude of voltage, gathers this magnitude of voltage, then according to mathematical formulae, changes out corresponding temperature value.
Magnetic induction signal processing module is mainly for the treatment of the output signal of No. 3 fluxgate sensors, excitation power supply circuit part exports the pulse signal of 5KHZ, as the power supply signal on the former limit of driver transformer, the secondary induced signal of driver transformer is then as the power pulses signal of 3 fluxgate sensors, and then the output signal of No. 3 fluxgate sensors is delivered to 3 tunnel magnetic induction circuitry for signal measurement parts of magnetic induction signal processing module, the output signal of No. 3 fluxgate sensors is chosen out by selective frequency amplifier circuit from the input signal of multi-frequency, carry out amplification process, then phase-sensitive detection circuit 6 is delivered to, halfwave rectifier is carried out to amplifying signal, the phase place of distinguishing signal and frequency, output low frequency restituted signal after filtering, again through integral element 7, feedback element 8, final output DC voltage value, realize the conversion of fluxgate sensor signal and voltage signal.Meanwhile, the temperature information around magnetic induction signal processing module can also be gathered, for judging the environment temperature residing for magnetic induction signal processing module.
Claims (1)
1. a drilling applications magnetic induction signal processing module, comprise excitation power supply circuit, 3 tunnel magnetic induction circuitry for signal measurement, bias voltage source part and temperature sensor section, it is characterized in that: excitation power supply circuit comprises oscillation frequency generator, frequency of oscillation regulating circuit, frequency dividing circuit and expansion current circuit; 3 tunnel magnetic induction circuitry for signal measurement parts comprise selective frequency amplifier circuit, phase-sensitive detection circuit, integral element and feedback element; Bias voltage source part comprises bias voltage generator and bias voltage regulator circuit; Temperature sensor section comprises temperature sensor chip and periphery configure circuit; Described oscillation frequency generator exports the pulse signal of certain frequency, then through frequency dividing circuit with after expanding current circuit, provides power pulses signal to driver transformer; The output signal of fluxgate sensor is chosen out by described selective frequency amplifier circuit from the input signal of multi-frequency; carry out amplification process; then phase-sensitive detection circuit is delivered to; halfwave rectifier is carried out to amplifying signal; the phase place of distinguishing signal and frequency, output low frequency restituted signal after filtering, then through integral element, feedback element; final output DC voltage value, realizes the conversion of fluxgate sensor signal and voltage signal; Described bias voltage generator provides in magnetic induction signal processing module the bias voltage needing to use, and when deviation appears in bias voltage, regulates by bias voltage regulator circuit; Described temperature sensor chip measures the temperature of surrounding environment, converts temperature value to magnitude of voltage, gathers this magnitude of voltage, then according to mathematical formulae, changes out corresponding temperature value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697992.3U CN204371303U (en) | 2014-11-20 | 2014-11-20 | A kind of drilling applications magnetic induction signal processing module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420697992.3U CN204371303U (en) | 2014-11-20 | 2014-11-20 | A kind of drilling applications magnetic induction signal processing module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371303U true CN204371303U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420697992.3U Active CN204371303U (en) | 2014-11-20 | 2014-11-20 | A kind of drilling applications magnetic induction signal processing module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111699370A (en) * | 2017-12-19 | 2020-09-22 | 斯伦贝谢技术有限公司 | Method for measuring surface torque oscillation performance index |
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2014
- 2014-11-20 CN CN201420697992.3U patent/CN204371303U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111699370A (en) * | 2017-12-19 | 2020-09-22 | 斯伦贝谢技术有限公司 | Method for measuring surface torque oscillation performance index |
| CN111699370B (en) * | 2017-12-19 | 2023-01-24 | 斯伦贝谢技术有限公司 | Method for measuring surface torque oscillation performance index |
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Address after: Dengzhou road 257091 in Shandong province Dongying City Dongcheng Development Zone No. 62 Patentee after: Schlumberger Oilfield Technology (Shandong) Co. Ltd. Address before: Dengzhou road 257091 in Shandong province Dongying City Dongcheng Development Zone No. 62 Patentee before: Schlumberger JHP Oilfield Technologies (Shandong) Co., Ltd. |