CN101206252A - System and method for measuring digital multimeter - Google Patents
System and method for measuring digital multimeter Download PDFInfo
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- CN101206252A CN101206252A CNA2006102013707A CN200610201370A CN101206252A CN 101206252 A CN101206252 A CN 101206252A CN A2006102013707 A CNA2006102013707 A CN A2006102013707A CN 200610201370 A CN200610201370 A CN 200610201370A CN 101206252 A CN101206252 A CN 101206252A
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Abstract
The invention relates to a measuring system and a method of a digital multimeter, wherein, the method includes the following steps that: whether a calibrator and to-be-measured digital multimeters exist is detected; the measuring parameters of voltage measurement, current measurement and resistance measurement are set; when the measuring parameters are set, the calibrator is controlled to output the standard signal of the to-be-measured parameters to the to-be-measured digital multimeters; parallel measurement of the standard signal is carried out by the digital multimeters to obtain the measuring value of each digital multimeter; the value of the standard signal is compared with the measuring value of each digital multimeter obtained through measurement, thereby judging whether the measuring value of each digital multimeter is within the range of error; finally, according to the comparison result of the value of the standard signal and the measuring value of each digital multimeter, a measuring report form is generated. The invention can control the calibrator to output the standard signal, thereby completing parallel measurement of the to-be-measured digital multimeters.
Description
Technical field
The present invention relates to a kind of digital versatile meter measuring system and method.
Background technology
Digital multimeter is an instrument the most frequently used in the electronic surveying, it can be used for measuring voltage (comprising DC voltage and alternating voltage), electric current (comprising DC current and alternating current), resistance (comprising Low ESR resistance and high-impedance resistors), can also be used to electric capacity of measuring by transistorized major parameter and capacitor etc.Digital multimeter has measures advantages such as accurate, that value is convenient, multiple functional, and still, digital multimeter produces fault because improper use causes component wear in the table easily when actual detected, needs often digital multimeter to be measured.
Traditional digital multimeter metering system is taked manual measurement, survey crew couples together calibrating device and digital multimeter to be measured with connecting line, on the calibrating device panel, import correlation parameter, make calibrating device output corresponding signal, note the standard value of calibrating device output.Then, survey crew is adjusted the reception parameter of digital multimeter, reads the measured value of digital multimeter, and the standard value of comparison calibration device output and the measured value of digital multimeter judge whether measurement result is accurate.This manual measurement mode efficient is low, when the digital multimeter quantity of measuring is a lot, in order to increase the efficient of measurement, needs to increase calibrating device and survey crew.
Summary of the invention
In view of above content, be necessary to provide a kind of digital versatile meter measuring system, its may command calibrating device outputting standard signal comes parallel measurement digital multimeter to be measured.
In view of above content, also be necessary to provide a kind of digital multimeter measuring method, its may command calibrating device outputting standard signal comes parallel measurement digital multimeter to be measured.
A kind of digital versatile meter measuring system comprises control computer, calibrating device and a plurality of digital multimeter to be measured, and described control computer comprises: detecting module is used to detect whether have calibrating device and a digital multimeter to be measured; Module is set, is used to be provided with the measurement parameter of voltage measurement, current measurement and resistance measurement; Measurement module is used for after measurement parameter is set, and the control calibrating device is exported the standard signal of parameter to be measured to digital multimeter to be measured, by described digital multimeter to be measured this standard signal is carried out parallel measurement, obtains the measured value of each digital multimeter; The measurement result analysis module is used for the measured value that the value of more described standard signal and each digital multimeter measure, thereby whether the measured value of judging digital multimeter to be measured is in error range; The report generation module, the comparative result that is used for the measured value measured according to the value of described standard signal and digital multimeter generates one and measures form.
A kind of digital multimeter measuring method comprises the steps: to detect whether have calibrating device and a digital multimeter to be measured; The measurement parameter of voltage measurement, current measurement and resistance measurement is set; After measurement parameter was set, the control calibrating device was exported the standard signal of parameter to be measured to digital multimeter to be measured, by digital multimeter this standard signal is carried out parallel measurement, obtains the measured value of each digital multimeter; The measured value that the value of more described standard signal and each digital multimeter measure, thus whether the measured value of judging this digital multimeter to be measured is in error range; The comparative result of the measured value of measuring according to the value of described standard signal and digital multimeter generates one and measures form.
Compared to prior art, described digital versatile meter measuring system and method can be controlled calibrating device outputting standard signal and come parallel measurement digital multimeter to be measured, have improved the efficient that digital multimeter is measured, and have reduced the measurement cost.
Description of drawings
Hardware structure figure when Fig. 1 is a digital versatile meter measuring system preferred embodiment measuring voltage of the present invention.
Fig. 2 is digital versatile meter measuring system preferred embodiment of the present invention hardware structure figure when measuring electric current.
Hardware structure figure when Fig. 3 is a digital versatile meter measuring system preferred embodiment measuring resistance of the present invention.
Fig. 4 is the functional block diagram of control computer in the digital versatile meter measuring system of the present invention.
Fig. 5 is the process flow diagram of digital multimeter measuring method of the present invention preferred embodiment.
Embodiment
Hardware structure figure when being digital versatile meter measuring system preferred embodiment measuring voltage of the present invention as shown in Figure 1.This system mainly comprises control computer 10, calibrating device 20, digital multimeter 1 and digital multimeter 2.Described control computer 10 links to each other with calibrating device 20 and a plurality of digital multimeter respectively, and described calibrating device 20 is calibration sources of standard in the measuring process.Described digital multimeter 1 and digital multimeter 2 are digital multimeter to be measured, and digital multimeter to be measured is two in the present embodiment, can be more among other embodiment, and the best is 4.
Will carry out the measurement of voltage, electric current and resistance to digital multimeter, its measuring process is: 1. the voltage (comprising DC voltage and alternating voltage) of measuring digital multimeter; 2. measure the electric current (comprising DC current and alternating current) of digital multimeter; 3. measure the resistance (comprising high-impedance resistors and Low ESR resistance) of digital multimeter.After step 1 and step 2 are finished, need being connected of changed digital multimeter and calibrating device 20, the concrete connected mode of each step is as follows, is described below in conjunction with Fig. 1 to Fig. 3.
As shown in Figure 1, when measuring the voltage of digital multimeter, the voltage of calibrating device 20/resistance low side 21 links to each other with the public port 31 of digital multimeter 1 and digital multimeter 2 respectively, voltage/the resistance of calibrating device 20 high-end 22 links to each other with the voltage/resistance port 32 of digital multimeter 1 and digital multimeter 2 respectively, and digital multimeter 1 links to each other with control computer 10 respectively with digital multimeter 2.Wherein, when measuring the voltage of digital multimeter, can carry out voltage measurement to digital multimeter 1 and digital multimeter 2 simultaneously.
As shown in Figure 2, when measuring the electric current of digital multimeter, the electric current low side 24 of calibrating device 20 links to each other with the public port 31 of digital multimeter 2, the big current output terminal mouth 23 of calibrating device 20 links to each other with the electric current port 33 of digital multimeter 1, the public port 31 of digital multimeter 1 links to each other with the electric current port 33 of digital multimeter 2, and digital multimeter 1 links to each other with control computer 10 respectively with digital multimeter 2.Wherein, when measuring the electric current of digital multimeter, can carry out current measurement to digital multimeter 1 and digital multimeter 2 simultaneously.
As shown in Figure 3, when measuring the resistance of digital multimeter, the public port 31 of digital multimeter 1 links to each other with electric current low side 24 with the voltage/resistance low side 21 of calibrating device 20, the voltage of digital multimeter 1/resistance port 32 links to each other with AUX auxiliary port 25 with the voltage/resistance high-end 22 of calibrating device 20, and digital multimeter 1 links to each other with control computer 10.Digital multimeter 2 is identical with the connected mode of control computer 10 with calibrating device 20 with digital multimeter 1 with the connected mode of calibrating device 20 and control computer 10.Wherein, when measuring the resistance of digital multimeter, measure respectively digital multimeter 1 and digital multimeter 2.
Before voltage, electric current and the resistance of measuring digital multimeter, in control computer 10, set measurement parameter earlier, described measurement parameter comprises: digital multimeter quantity to be measured, the stand-by period of measurement and measurement point etc.The described stand-by period is the stand-by period before digital multimeter to be measured is measured the signal of calibrating device 20 outputs, after digital multimeter to be measured receives the signal of calibrating device 20 outputs, need wait for a period of time, after digital multimeter to be measured is read value stabilization, walk abreast again this signal is measured.Because a plurality of digital multimeters to be measured are common multiplexing this section stand-by period, thereby saved Measuring Time, improved efficiency of measurement.Science is comprehensive more in order to make the result who measures, and needs to set a plurality of measurement points, and different voltage, electric current and resistance are measured.
In measuring process, control computer 10 is sent the measurement instruction of measuring a standard value to calibrating device 20, calibrating device 20 is given digital multimeter to be measured according to the signal of this standard value of this instruction output, after arriving the stand-by period of setting, digital multimeter to be measured takes multiple measurements this signal simultaneously, and the measured value that obtains is returned to control computer 10.10 pairs of these a plurality of measured values of control computer are averaged, measured value as digital multimeter to be measured, relatively this measured value and standard value then, judge that this measured value is whether in error range, judgment formula is: standard value * (1-X%)＜=measured value＜=standard value * (1+Y%), the size of X, Y is determined on a case-by-case basis.For example, control computer 10 is sent the measurement instruction of measuring 5V voltage (standard value) to calibrating device 20, calibrating device 20 is given digital multimeter 1 and digital multimeter 2 according to the voltage signal of a 5V of this instruction output, after arriving the stand-by period of setting, digital multimeter 1 and digital multimeter 2 take multiple measurements this voltage signal simultaneously, and successively measured value are separately returned to control computer 10.10 pairs of these a plurality of measured values of control computer average (such as for 4.9998V), relatively this measured value and standard value then, judge that this measured value is whether in the error range that allows, suppose that the X value is 0.036 in the judgment formula, the Y value is 0.038, can judge that then this measured value is accurate, because 5 * (1-0.036%)＜=4.9998＜=5 * (1+0.038%).
As shown in Figure 4, be the functional block diagram of control computer in the digital versatile meter measuring system of the present invention.The alleged module of the present invention is to finish the computer program code segments of a specific function, be more suitable in describing the implementation of software in computing machine than program, therefore below the present invention to all describing in the software description with module.Described control computer 10 comprises detecting module 100, module 101 is set, measurement module 102, measurement result analysis module 103 and report generation module 104.
Wherein, detecting module 100 is used for detecting and whether has calibrating device 20, digital multimeter 1 and digital multimeter 2, if calibrating device 20, digital multimeter 1 and digital multimeter 2 have existed, then begins to be provided with measurement parameter.
Wherein, first measures the voltage that submodule 1021 is used to measure digital multimeter 1 and digital multimeter 2, and the measurement of voltage is comprised dc voltage measurement and ac voltage measurement.At first, by module 101 is set the voltage measurement parameter is set, described measurement parameter comprises: digital multimeter quantity to be measured, the stand-by period of measurement and measurement point etc.Then, first of control computer 10 is measured the measurement instruction that submodule 1021 sends a normal voltage to calibrating device 20, and calibrating device 20 is according to this instruction voltage signal of output and send digital multimeter 1 to and digital multimeter 2.After arriving the stand-by period of setting, digital multimeter 1 and digital multimeter 2 are measured this voltage signal simultaneously, after measuring repeatedly, the result who measures is returned to control computer 10, first measures 1021 pairs of these a plurality of measured values of submodule averages, as the measured value of digital multimeter 30.Carry out the voltage measurement of next measurement point then, science is comprehensive more in order to make the result who measures, need to set a plurality of measurement points, different voltage is measured, the same needs of other measurement (comprising electric current and resistance measurement) are set different measurement points and are measured comprehensively.
After having surveyed voltage, the line (as shown in Figure 2) between change calibrating device 20, digital multimeter 1 and the digital multimeter 2 carries out next step current measurement.
Second measures the electric current that submodule 1022 is used to measure digital multimeter 30, wherein, the measurement of electric current is comprised dc current measurement and ac current measurement.At first, by module 101 is set the current measurement parameter is set, described measurement parameter comprises: digital multimeter quantity to be measured, the stand-by period of measurement and measurement point etc.Then, second of control computer 10 is measured the measurement instruction that submodule 1022 sends a normalized current to calibrating device 20, and calibrating device 20 is according to this instruction current signal of output and send digital multimeter 1 to and digital multimeter 2.After arriving the stand-by period of setting, digital multimeter 1 and digital multimeter 2 are measured this current signal simultaneously, after measuring repeatedly, the result who measures is returned to control computer 10, second measures 1022 pairs of these a plurality of measured values of submodule averages, as the measured value of digital multimeter 1 and digital multimeter 2.After having surveyed electric current, the line (as shown in Figure 3) between change calibrating device 20, digital multimeter 1 and the digital multimeter 2 carries out next step resistance measurement.
The 3rd measures the resistance that submodule 1023 is used to measure digital multimeter 1 and digital multimeter 2.At first measure the resistance of digital multimeter 1, by the resistance measurement parameter that module 101 is provided with digital multimeter 1 is set, described measurement parameter comprises: digital multimeter quantity to be measured, the stand-by period of measurement and measurement point etc.Then, the 3rd of control computer 10 is measured the measurement instruction that submodule 1023 sends a measuring resistance to calibrating device 20, and calibrating device 20 is according to this instruction resistance signal of output and send digital multimeter 1 to.After arriving the stand-by period of setting, 1 pair of this signal of digital multimeter takes multiple measurements, and the result who measures is returned to 1023 pairs of these a plurality of measured values of control computer 10, the three measurement submodules average, as the measured value of digital multimeter 1.Then, changing digital multimeter 1 is digital multimeter 2, measures the resistance of digital multimeter 2, and its measuring process is with the measuring process unanimity of digital multimeter 1.
Measurement result analysis module 103 be used for all measuring finish after, the measured value that value of more described standard signal (standard value) and digital multimeter 1 and digital multimeter 2 measure, thereby whether the measured value of judging digital multimeter 1 and digital multimeter 2 is in error range, judgment formula is: standard value * (1-X%)＜=measured value＜=standard value * (1+Y%), the size of X, Y is determined on a case-by-case basis.
As shown in Figure 5, be the process flow diagram of digital multimeter measuring method of the present invention preferred embodiment.At first, step S401, detecting module 100 detecting calibrating device 20, digital multimeter 1 and the digital multimeters 2 of control computer 10.
Step S402 judges whether calibrating device 20, digital multimeter 1 and digital multimeter 2 exist.
Step S403 if calibrating device 20, digital multimeter 1 and digital multimeter 2 have existed, then is provided with the voltage measurement parameter by module 101 is set, and described measurement parameter comprises: digital multimeter quantity to be measured, the stand-by period of measurement and measurement point etc.Then, first of control computer 10 is measured the measurement instruction that submodule 1021 sends a normal voltage to calibrating device 20, and calibrating device 20 is according to this instruction voltage signal of output and send digital multimeter 1 to and digital multimeter 2.After arriving the stand-by period of setting, digital multimeter 1 and digital multimeter 2 are measured this voltage signal simultaneously, after measuring repeatedly, the result who measures is returned to control computer 10, first measures 1021 pairs of these a plurality of measured values of submodule averages, as the measured value of digital multimeter 30.Then, carry out the voltage measurement of next measurement point.
After having surveyed voltage, the line (as shown in Figure 2) between change calibrating device 20, digital multimeter 1 and the digital multimeter 2 carries out next step current measurement.
Step S404 at first, is provided with the current measurement parameter by module 101 is set, and described measurement parameter comprises: digital multimeter quantity to be measured, the stand-by period of measurement and measurement point etc.Then, second of control computer 10 is measured the measurement instruction that submodule 1022 sends a normalized current to calibrating device 20, and calibrating device 20 is according to this instruction current signal of output and send digital multimeter 1 to and digital multimeter 2.After arriving the stand-by period of setting, digital multimeter 1 and digital multimeter 2 are measured this current signal simultaneously, after measuring repeatedly, the result who measures is returned to control computer 10, second measures 1022 pairs of these a plurality of measured values of submodule averages, as the measured value of digital multimeter 1 and digital multimeter 2.After having surveyed electric current, the line (as shown in Figure 3) between change calibrating device 20, digital multimeter 1 and the digital multimeter 2 carries out next step resistance measurement.
Step S405 at first measures the resistance of digital multimeter 1, and by the resistance measurement parameter that module 101 is provided with digital multimeter 1 is set, described measurement parameter comprises: digital multimeter quantity to be measured, the stand-by period of measurement and measurement point etc.Then, the 3rd of control computer 10 is measured the measurement instruction that submodule 1023 sends a measuring resistance to calibrating device 20, and calibrating device 20 is according to this instruction resistance signal of output and send digital multimeter 1 to.After arriving the stand-by period of setting, 1 pair of this signal of digital multimeter takes multiple measurements, and the result who measures is returned to 1023 pairs of these a plurality of measured values of control computer 10, the three measurement submodules average, as the measured value of digital multimeter 1.Then, changing digital multimeter 1 is digital multimeter 2, measures the resistance of digital multimeter 2, and its measuring process is with the measuring process unanimity of digital multimeter 1.
Step S406, after all measurement finishes, the measured value that the measurement result analysis module 103 standard of comparison values of control computer 10 and digital multimeter 1 and digital multimeter 2 measure, thereby whether the measured value of judging this digital multimeter 1 and digital multimeter 2 is in error range, judgment formula is: standard value * (1-X%)＜=measured value＜=standard value * (1+Y%), the size of X, Y is determined on a case-by-case basis.
Step S407, the comparative result of the measured value of measuring according to described standard value and digital multimeter 1 and digital multimeter 2 generates one and measures form, the measurement point of measured value in error range be labeled as measure by (Pass), to measured value not the measurement point in error range be labeled as measurement by (Failed).
Described digital multimeter parallel measurement can be one or more in a measuring voltage (comprising DC voltage and alternating voltage), electric current (comprising DC current and alternating current), the resistance (comprising high-impedance resistors and Low ESR resistance), and the order of its measurement also can be adjusted.
Claims (10)
1. a digital versatile meter measuring system comprises control computer, calibrating device and a plurality of digital multimeter to be measured, it is characterized in that described control computer comprises:
Detecting module is used to detect whether have calibrating device and a digital multimeter to be measured;
Module is set, is used to be provided with the measurement parameter of voltage measurement, current measurement and resistance measurement;
Measurement module is used for after measurement parameter is set, and the control calibrating device is exported the standard signal of parameter to be measured to digital multimeter to be measured, by described digital multimeter to be measured this standard signal is carried out parallel measurement, obtains the measured value of each digital multimeter;
The measurement result analysis module is used for the measured value that the value of more described standard signal and each digital multimeter measure, thereby whether the measured value of judging digital multimeter to be measured is in error range; And
The report generation module, the comparative result that is used for the measured value measured according to the value of described standard signal and digital multimeter generates one and measures form.
2. digital versatile meter measuring system as claimed in claim 1 is characterized in that, described measurement parameter comprises: digital multimeter quantity to be measured, the stand-by period and the measurement point of measurement.
3. digital versatile meter measuring system as claimed in claim 2 is characterized in that, described measurement module comprises:
First measures submodule, be used for calibrating device and digital multimeter to be measured on connecting, the voltage measurement parameter is set after, control calibrating device outputting standard voltage signal is to digital multimeter to be measured, by digital multimeter this signal is carried out parallel measurement, obtain the measured value of each digital multimeter;
4. digital versatile meter measuring system as claimed in claim 2 is characterized in that, described measurement module comprises:
Second measures submodule, be used for being connected at change calibrating device and digital multimeter to be measured, after the current measurement parameter is set, control calibrating device outputting standard current signal is to digital multimeter to be measured, by digital multimeter this signal is carried out parallel measurement, obtain the measured value of each digital multimeter;
5. digital versatile meter measuring system as claimed in claim 2 is characterized in that, described measurement module comprises:
The 3rd measures submodule, be used in being connected of change calibrating device and digital multimeter to be measured, the resistance measurement parameter is set after, control calibrating device outputting standard resistance signal is to digital multimeter to be measured, by digital multimeter this signal is measured, obtained the measured value of each digital multimeter.
6. a digital multimeter measuring method is characterized in that, this method comprises the steps:
Whether detecting exists calibrating device and digital multimeter to be measured;
The measurement parameter of voltage measurement, current measurement and resistance measurement is set;
After measurement parameter was set, the control calibrating device was exported the standard signal of parameter to be measured to digital multimeter to be measured, by digital multimeter this standard signal is carried out parallel measurement, obtains the measured value of each digital multimeter;
The measured value that the value of more described standard signal and each digital multimeter measure, thus whether the measured value of judging this digital multimeter to be measured is in error range; And
The comparative result of the measured value of measuring according to the value of described standard signal and digital multimeter generates one and measures form.
7. digital multimeter measuring method as claimed in claim 6 is characterized in that, described measurement parameter comprises: digital multimeter quantity to be measured, the stand-by period and the measurement point of measurement.
8. digital multimeter measuring method as claimed in claim 7, it is characterized in that, the standard signal that described step control calibrating device is exported parameter to be measured carries out parallel measurement by digital multimeter to this standard signal to digital multimeter to be measured, and the measured value that obtains each digital multimeter comprises:
Calibrating device and digital multimeter to be measured on connecting, after the voltage measurement parameter is set, control calibrating device outputting standard voltage signal carries out parallel measurement by digital multimeter to this signal to digital multimeter to be measured, obtains the measured value of each digital multimeter;
9. digital multimeter measuring method as claimed in claim 7, it is characterized in that, the standard signal that described step control calibrating device is exported parameter to be measured carries out parallel measurement by digital multimeter to this standard signal to digital multimeter to be measured, and the measured value that obtains each digital multimeter comprises:
In being connected of change calibrating device and digital multimeter to be measured, after the current measurement parameter is set, control calibrating device outputting standard current signal carries out parallel measurement by digital multimeter to this signal to digital multimeter to be measured, obtains the measured value of each digital multimeter;
10. digital multimeter measuring method as claimed in claim 7, it is characterized in that, described step control calibrating device is exported the standard signal of parameter to be measured to digital multimeter to be measured, by digital multimeter this standard signal is carried out parallel measurement, the measured value that obtains each digital multimeter comprises:
In being connected of change calibrating device and digital multimeter to be measured, after the resistance measurement parameter is set, control calibrating device outputting standard resistance signal is measured this signal by digital multimeter to digital multimeter to be measured, obtains the measured value of each digital multimeter.
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| CNA2006102013707A CN101206252A (en) | 2006-12-22 | 2006-12-22 | System and method for measuring digital multimeter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102004188A (en) * | 2010-09-26 | 2011-04-06 | 奇瑞汽车股份有限公司 | Device for simulating insulation resistor and method for calibrating accuracy of monitoring device |
| CN101629994B (en) * | 2009-08-07 | 2012-05-30 | 深圳市科陆电子科技股份有限公司 | Method for automatically calibrating terminal in batch |
| CN101718819B (en) * | 2009-11-06 | 2012-07-25 | 深圳市科陆电子科技股份有限公司 | Batch automatic terminal event testing method and system thereof |
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| CN105548929A (en) * | 2015-12-02 | 2016-05-04 | 中国人民解放军济南军区72465部队 | System and method of automatic measurement of digital multimeter |
| CN109342982A (en) * | 2018-07-09 | 2019-02-15 | 中国兵器工业第五九研究所 | One kind is about digital multimeter acceleration service life test method |
| CN117269613A (en) * | 2023-11-21 | 2023-12-22 | 中国石油大学(华东) | Dual-mode detection multi-parameter inversion method based on multi-frequency measurement grid |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101629994B (en) * | 2009-08-07 | 2012-05-30 | 深圳市科陆电子科技股份有限公司 | Method for automatically calibrating terminal in batch |
| CN101718819B (en) * | 2009-11-06 | 2012-07-25 | 深圳市科陆电子科技股份有限公司 | Batch automatic terminal event testing method and system thereof |
| CN102004188A (en) * | 2010-09-26 | 2011-04-06 | 奇瑞汽车股份有限公司 | Device for simulating insulation resistor and method for calibrating accuracy of monitoring device |
| CN105319522A (en) * | 2015-06-11 | 2016-02-10 | 江苏茶花电气有限公司 | Subway inverter box sensor online detection device |
| CN105548929A (en) * | 2015-12-02 | 2016-05-04 | 中国人民解放军济南军区72465部队 | System and method of automatic measurement of digital multimeter |
| CN109342982A (en) * | 2018-07-09 | 2019-02-15 | 中国兵器工业第五九研究所 | One kind is about digital multimeter acceleration service life test method |
| CN117269613A (en) * | 2023-11-21 | 2023-12-22 | 中国石油大学(华东) | Dual-mode detection multi-parameter inversion method based on multi-frequency measurement grid |
| CN117269613B (en) * | 2023-11-21 | 2024-02-06 | 中国石油大学(华东) | A dual-mode detection multi-parameter inversion method based on multi-frequency measurement grid |
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