CN204347137U - Combined resistance rate measuring system - Google Patents
Combined resistance rate measuring system Download PDFInfo
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- CN204347137U CN204347137U CN201420658744.8U CN201420658744U CN204347137U CN 204347137 U CN204347137 U CN 204347137U CN 201420658744 U CN201420658744 U CN 201420658744U CN 204347137 U CN204347137 U CN 204347137U
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Abstract
The utility model relates to Combined resistance rate measuring system.The utility model comprises probe measurement module, resistance measuring module, temperature-measuring module, resistivity computing module and liquid storage can; Probe measurement module comprises four electrodes and thermo-sensitive resistor, wherein dispatch from foreign news agency very galvanic electrode, and interior electrode is voltage electrode; Probe measurement module is inserted liquid storage can, the liquid composition closed-loop path in described resistance measuring module, described probe measurement module and described liquid storage can; Described temperature-measuring module and thermo-sensitive resistor are connected to form closed-loop path.The measuring system that the utility model provides has the multi-functional of testing temperature, measuring resistance and calculating resistivity, adopt this measuring system can effectively reduce resistivity measurement system volume, promote instrument portability, and resistivity measurement is combined with temperature survey, ensure that measuring accuracy.
Description
Technical field
The utility model relates to resistivity measurement system technical field, especially Combined resistance rate measuring system.
Background technology
Mud resistivity is the important parameter in well logging interpretation, and existing mud resistivity tester is bulky ground test instrument, measures inconvenience, cannot meet the on-the-spot needs that present hole condition becomes increasingly complex.Preliminary work before test is more and wiring requirement is higher, for tester brings heavy burden.Meanwhile, mud high insulating efficiency is poor, and temperature has a significant impact for the measurement result of resistivity, Conventional mud resistivity measurement system can not while detection resistance detected temperatures, therefore the measurement result of resistivity is not accurate enough.Can not fully ensure thermometric precision again for the resistance measuring instrument having temperature measurement function, and measurements resistivity is had a negative impact.
Existing mud resistivity tester adopts body structure, and internal circuit part takies larger space, and needs to take special parking space; Meanwhile, do not possess thermometric function, thus limit the usable range of instrument.
Utility model content
For this reason, the utility model provides Combined resistance rate measuring system, this measuring system has the multi-functional of testing temperature, measuring resistance and calculating resistivity, adopt this measuring system effectively can reduce testing liquid resistivity measuring instrument volume, promote instrument portability, and resistivity measurement is combined with temperature survey, ensure that measuring accuracy, be particularly useful for for accuracy requirement high, and measure among loaded down with trivial details mud resistivity measurement.
The technical scheme that the utility model solves the problems of the technologies described above is as follows:
The utility model provides Combined resistance rate measuring system, comprises probe measurement module, resistance measuring module, temperature-measuring module, resistivity computing module and liquid storage can; Described resistance measuring module, temperature-measuring module and resistivity calculate module composition circuit function module; Described circuit function module is connected by connector with described probe module;
Described probe measurement module comprises and arranges four electrodes and thermo-sensitive resistor from top to bottom, wherein first and the 4th electrode form external electrode, dispatch from foreign news agency is galvanic electrode very; Second and the 3rd electrode form in electrode, interior electrode is voltage electrode;
Described resistance measuring module comprises supply module, voltage measurement module, current measurement module and resistance calculations module, resistance measuring module is connected with described probe measurement module, described probe measurement module inserts liquid storage can, four electrodes in liquid-immersed probe measurement module, described liquid storage can is cylindrical, liquid composition closed-loop path in described resistance measuring module, described probe measurement module and described liquid storage can, measures testing liquid resistance and transfers to resistivity computing module;
Described resistivity computing module calculates testing liquid resistivity according to r=RS/l, and wherein, R is resistance measuring module measured value, and S is cylindrical liquid storage can inner circle cross-sectional area, the distance value of l two interior electrodes;
Described temperature-measuring module provides burning voltage and is connected to form closed-loop path with thermo-sensitive resistor, measures testing liquid temperature.
Preferably, described connector is USB interface, HDMI or several conductive contact blades side by side.
Preferably, resistivity computing module can also calculate correction factor k, and calculate correction factor k according to formula r=kR, wherein R is resistance measuring module measured value, and r is resistivity calculated value.
Preferably, the distance of two interior electrodes is 40cm, and the distance of two external electrodes is 60cm, and the distance of the first electrode and the second electrode is 10cm.
Preferably, circular diameter 40cm in cylindrical liquid storage can.
The method of the measured resistivity of Combined resistance rate measuring system, comprises the following steps:
The supply module of S1, resistance measuring module passes into electric current by galvanic electrode to testing liquid, and obtains the current signal I by galvanic electrode by current measurement module, and I value is transferred to resistance measuring module;
S2, voltage measurement module obtain the voltage differential signal V between two voltage electrodes, and V value is transferred to resistance measuring module;
S3, resistance measuring module are according to formula
testing liquid resistance R between two voltage electrodes can be calculated, and R value is transferred to resistivity computing module;
Be preset with distance l between two voltage electrodes in S4, resistivity computing module and measure the internal diameter r of cylindrical liquid storage can, according to areal calculation formula S=π r
2, calculate cross-sectional area S;
S4, resistivity computing module are according to formula
calculate testing liquid resistivity.
Preferably, the signals collecting time of current measurement module, voltage measurement module and temperature-measuring module is controlled by timing module, gather terminate rear temperature-measuring module by measure thermistor two ends voltage V ' and flow through the electric current I of thermistor ', calculate the resistance R ' of thermistor, then converse temperature corresponding to thermistor resistance by R '.
The beneficial effects of the utility model are:
The utility model provides Combined resistance rate measuring system, this measuring system has the multi-functional of testing temperature, measuring resistance and calculating resistivity, resistivity measuring instrument volume can be effectively reduced, promote instrument portability, and resistivity measurement is combined with temperature survey, ensure that measuring accuracy, decrease the workload of surveying work.
Accompanying drawing explanation
Fig. 1 is Combined resistance rate measuring system structural representation.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with accompanying drawing, the utility model is described in further detail.
In the present embodiment, as shown in Figure 1, Combined resistance rate measuring system, comprises probe measurement module, resistance measuring module, temperature-measuring module, resistivity computing module and liquid storage can; Described resistance measuring module, temperature-measuring module and resistivity calculate module composition circuit function module; Described circuit function module is connected by connector with described probe module;
Described probe measurement module comprises and arranges four electrodes and thermo-sensitive resistor from top to bottom, wherein first and the 4th electrode form external electrode, dispatch from foreign news agency is galvanic electrode very; Second and the 3rd electrode form in electrode, interior electrode is voltage electrode;
Described resistance measuring module comprises supply module, voltage measurement module, current measurement module and resistance calculations module, resistance measuring module is connected with described probe measurement module, described probe measurement module inserts liquid storage can, four electrodes in liquid-immersed probe measurement module, described liquid storage can is cylindrical, liquid composition closed-loop path in described resistance measuring module, described probe measurement module and described liquid storage can, measures testing liquid resistance and transfers to resistivity computing module;
Described resistivity computing module calculates testing liquid resistivity according to r=RS/l, and wherein, R is resistance measuring module measured value, and S is cylindrical liquid storage can inner circle cross-sectional area, the distance value of l two interior electrodes;
Described temperature-measuring module provides burning voltage and is connected to form closed-loop path with thermo-sensitive resistor, measures testing liquid temperature.
Preferably, described connector is USB interface, HDMI or several conductive contact blades side by side.
Preferably, resistivity computing module can also calculate correction factor k, and calculate correction factor k according to formula r=kR, wherein R is resistance measuring module measured value, and r is resistivity calculated value.
Preferably, the distance of two interior electrodes is 40cm, and the distance of two external electrodes is 60cm, and the distance of the first electrode and the second electrode is 10cm.
Preferably, circular diameter 40cm in cylindrical liquid storage can.
The method of the measured resistivity of Combined resistance rate measuring system, comprises the following steps:
The supply module of S1, resistance measuring module passes into electric current by galvanic electrode to testing liquid, and obtains the current signal I by galvanic electrode by current measurement module, and I value is transferred to resistance measuring module;
S2, voltage measurement module obtain the voltage differential signal V between two voltage electrodes, and V value is transferred to resistance measuring module;
S3, resistance measuring module are according to formula
testing liquid resistance R between two voltage electrodes can be calculated, and R value is transferred to resistivity computing module;
Be preset with distance l between two voltage electrodes in S4, resistivity computing module and measure the internal diameter r of cylindrical liquid storage can, according to areal calculation formula S=π r
2, calculate cross-sectional area S;
S4, resistivity computing module are according to formula
calculate testing liquid resistivity.
The signals collecting time of preferred current measurement module, voltage measurement module and temperature-measuring module is controlled by timing module, gather terminate rear temperature-measuring module by measure thermistor two ends voltage V ' and flow through the electric current I of thermistor ', calculate the resistance R ' of thermistor, then converse temperature corresponding to thermistor resistance by R '.
Above disclosedly be only a kind of preferred embodiment of the utility model, certainly can not limit the interest field of the utility model with this, therefore according to the equivalent variations that the utility model claim is done, still belong to the scope that the utility model is contained.
Claims (6)
1. Combined resistance rate measuring system, is characterized in that, comprises probe measurement module, resistance measuring module, temperature-measuring module, resistivity computing module and liquid storage can; Described resistance measuring module, temperature-measuring module and resistivity calculate module composition circuit function module; Described circuit function module is connected by connector with described probe module;
Described probe measurement module comprises and arranges four electrodes and thermo-sensitive resistor from top to bottom, wherein first and the 4th electrode form external electrode, dispatch from foreign news agency is galvanic electrode very; Second and the 3rd electrode form in electrode, interior electrode is voltage electrode;
Described resistance measuring module comprises supply module, voltage measurement module, current measurement module and resistance calculations module, resistance measuring module is connected with described probe measurement module, described probe measurement module inserts liquid storage can, four electrodes in liquid-immersed probe measurement module, described liquid storage can is cylindrical, liquid composition closed-loop path in described resistance measuring module, described probe measurement module and described liquid storage can, measures testing liquid resistance and transfers to resistivity computing module;
Described resistivity computing module calculates testing liquid resistivity according to r=RS/l, and wherein, R is resistance measuring module measured value, and S is cylindrical liquid storage can inner circle cross-sectional area, the distance value of l two interior electrodes;
Described temperature-measuring module provides burning voltage and is connected to form closed-loop path with thermo-sensitive resistor, measures testing liquid temperature.
2. Combined resistance rate measuring system according to claim 1, is characterized in that, described connector is USB interface, HDMI or several conductive contact blades side by side.
3. Combined resistance rate measuring system according to claim 1 and 2, it is characterized in that, resistivity computing module can also calculate correction factor k, calculates correction factor k according to formula r=kR, wherein R is resistance measuring module measured value, and r is resistivity calculated value.
4. Combined resistance rate measuring system according to claim 3, it is characterized in that, described system comprises timing module.
5. Combined resistance rate measuring system according to claim 4, is characterized in that, the distance of two interior electrodes is 40cm, and the distance of two external electrodes is 60cm, and the distance of the first electrode and the second electrode is 10cm.
6. according to the Combined resistance rate measuring system described in claim 5, it is characterized in that, circular diameter 40cm in cylindrical liquid storage can.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420658744.8U CN204347137U (en) | 2014-11-05 | 2014-11-05 | Combined resistance rate measuring system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420658744.8U CN204347137U (en) | 2014-11-05 | 2014-11-05 | Combined resistance rate measuring system |
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| CN204347137U true CN204347137U (en) | 2015-05-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407223A (en) * | 2014-11-05 | 2015-03-11 | 贝兹维仪器(苏州)有限公司 | Combined resistivity measurement system and method for measuring resistivity by using combined resistivity measurement system |
| CN105486927A (en) * | 2015-11-25 | 2016-04-13 | 华北电力大学（保定） | Measurement method for volume resistivity of solid insulating material |
| CN105486928A (en) * | 2015-11-25 | 2016-04-13 | 广东工业大学 | Thermoelectric material resistivity measurement circuit |
-
2014
- 2014-11-05 CN CN201420658744.8U patent/CN204347137U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104407223A (en) * | 2014-11-05 | 2015-03-11 | 贝兹维仪器(苏州)有限公司 | Combined resistivity measurement system and method for measuring resistivity by using combined resistivity measurement system |
| CN105486927A (en) * | 2015-11-25 | 2016-04-13 | 华北电力大学（保定） | Measurement method for volume resistivity of solid insulating material |
| CN105486928A (en) * | 2015-11-25 | 2016-04-13 | 广东工业大学 | Thermoelectric material resistivity measurement circuit |
| CN105486927B (en) * | 2015-11-25 | 2018-01-16 | 华北电力大学（保定） | A kind of measuring method of solid insulating material specific insulation |
| CN105486928B (en) * | 2015-11-25 | 2019-02-15 | 广东工业大学 | A kind of thermoelectric material resistivity measurement circuit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150520 Termination date: 20201105 |
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| CF01 | Termination of patent right due to non-payment of annual fee |