CN108828317A - Electric resistance measuring apparatus and system - Google Patents
Electric resistance measuring apparatus and system Download PDFInfo
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- CN108828317A CN108828317A CN201810347810.2A CN201810347810A CN108828317A CN 108828317 A CN108828317 A CN 108828317A CN 201810347810 A CN201810347810 A CN 201810347810A CN 108828317 A CN108828317 A CN 108828317A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/22—Measuring resistance of fluids
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/08—Measuring resistance by measuring both voltage and current
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- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
The embodiment of the present invention provides a kind of electric resistance measuring apparatus and system, belongs to controlled fluid electricity characteristic measuring field, and electric resistance measuring apparatus is applied to ER fluid device.Electric resistance measuring apparatus includes：Field strength adjustable module, power module and detection processing module；ER fluid device is connect with power module and field strength adjustable module respectively, and detection processing module is connect with ER fluid device and power module respectively；Field strength adjustable module exports the second field intensity value, so that current resistance value is the second resistance value corresponding with the second field intensity value when for corresponding first resistance value of the first field intensity value that the current resistance value in ER fluid device is the output of field strength adjustable module；Detection processing module, for during current resistance value is from the first change in resistance to the second resistance value, current value in detection ER fluid device circuit by and corresponding first current value of the first resistance value change to the second current value corresponding with the second resistance value, realize the resistance value measurement of ER fluid device under DC Electric Field.
Description
Technical field
The present invention relates to controlled fluid electricity characteristic measuring technical fields, in particular to a kind of electric resistance measuring apparatus
And system.
Background technique
ER fluid (electrorheological fluid, ER) is a kind of novel controllable intelligent material because its own is solid
The characteristics of having and advantage and have wide application market.ER component part includes dielectric and the conduction that is distributed in dielectric
Particle, when not by electric field action, state is in liquid.When external electrical field changes, the electrically conductive particles in ER are in electric field action
It is lower that its state is made to occur to be reconfigured by unordered-orderly due to the effect by electric field force.If external electrical field increases to a certain
Threshold values, then the state of ER can be solid (having enough electrically conductive particles in ER) by liquid instantaneous variation.In this course, with
The increase of external electrical field intensity and the electric conductivity of ER is enhanced, this state be consecutive variations process.
With the increase of extra electric field, while ER materials conductive performance also gradually increases, the electrically conductive particles in ER are by nothing
Substantially orderly-orderly (chain breakage)-orderly (chain molding)-orderly (chain overstriking) this rule changes sequence-, ER material
Resistance in material is also changed by insulator-semiconductor-conductor shape body.Currently, probe into the rule of the process electric conductivity
Document is also rarely reported.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of electric resistance measuring apparatus and system, to solve the above problems.
The technical solution that the embodiment of the present invention solves above-mentioned technical problem is as follows：
In a first aspect, being applied to ER fluid device, the electricity the embodiment of the invention provides a kind of electric resistance measuring apparatus
Hindering measuring device includes：Field strength adjustable module, power module and detection processing module；Wherein, the field strength adjustable module with
The ER fluid device connection, the power module are connect with the ER fluid device, the detection processing module difference
It is connect with the ER fluid device and the power module；The field strength adjustable module, in the ER fluid device
Current resistance value when being corresponding first resistance value of the first field intensity value of field strength adjustable module output, export the second field intensity value,
So that the current resistance value is adjusted to the second resistance value corresponding with second field intensity value from first resistance value；At the detection
Module is managed, it is described for detecting during the current resistance value is from first change in resistance to second resistance value
Current value in ER fluid device circuit is changed to and second resistance by the first current value corresponding with first resistance value
It is worth corresponding second current value.
Optionally, the field strength adjustable module includes：Voltage-adjustable power and field strength circuit, the voltage-adjustable power with
The field strength circuit connection, the voltage-adjustable power are described first for the current field strength in the field strength circuit
When intensity values, second voltage value is exported, is adjusted to second field strength to control the current field strength from first field intensity value
Value.
Optionally, the detection processing module includes：Current measuring instrument.
Optionally, the detection processing module further includes：Data processor, the data processor and the current measurement
Instrument connection, the data processor be used for based in the ER fluid device circuit current value and the voltage it is adjustable
The voltage value of power supply output, obtains the first corresponding relationship between the voltage value and the current value.
Optionally, the data processor, be also used to obtain the voltage value and the ER fluid device resistance value it
Between the second corresponding relationship.
Optionally, the data processor, the field intensity value and the ER fluid for being also used to obtain the field strength circuit fill
Third corresponding relationship between the resistance value set.
Optionally, the detection processing module further includes：Image display, described image display and the data processing
Device connection, described image display is for showing first corresponding relationship, second corresponding relationship and/or the third pair
It should be related to.
Optionally, the power module includes：Battery apparatus, the battery apparatus are used to provide the described ER fluid device
Required voltage.
Optionally, the power module further includes：Switching circuit, the switching circuit are connect with the battery apparatus, institute
Switching circuit is stated for controlling the disconnection and connection in the circuit that the ER fluid device and the power-supply device are collectively formed.
Second aspect, the embodiment of the invention provides a kind of resistance measuring system, the resistance measuring system includes：Electric current
Become liquid device and the electric resistance measuring apparatus, the electric resistance measuring apparatus are connect with the ER fluid device.
The beneficial effect of the embodiment of the present invention is：
The embodiment of the invention provides a kind of electric resistance measuring apparatus, are applied to ER fluid device, the resistance measurement dress
Set including：Field strength adjustable module, power module and detection processing module；Wherein, the field strength adjustable module and the electric current
Become liquid device connection, the power module connect with the ER fluid device, the detection processing module respectively with the electricity
Rheology liquid device is connected with the power module；The field strength adjustable module, for the current resistance in the ER fluid device
When value is the first field intensity value corresponding first resistance value of field strength adjustable module output, the second field intensity value is exported, described in control
Current resistance value is adjusted to the second resistance value corresponding with second field intensity value from first resistance value；The detection processing module,
For detecting the ER fluid during current resistance value is from first change in resistance to second resistance value
Current value in device circuit is changed to and the second resistance value pair by the first current value corresponding with the first resistor value
The second current value answered realizes the resistance value measurement of the ER fluid device under DC Electric Field.
Other features and advantages of the present invention will be illustrated in subsequent specification, also, partly be become from specification
It is clear that being understood by implementing the embodiment of the present invention.The objectives and other advantages of the invention can be by written
Specifically noted structure is achieved and obtained in specification, claims and attached drawing.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.By the way that shown in attached drawing, above and other purpose of the invention, feature and advantage will be more clear.In whole
Identical appended drawing reference indicates identical part in attached drawing.Attached drawing, emphasis deliberately are not drawn by actual size equal proportion scaling
It is to show the gist of the present invention.
Fig. 1 shows a kind of structural block diagram of resistance measuring system of first embodiment of the invention offer；
Fig. 2 shows a kind of structural block diagrams for electric resistance measuring apparatus that second embodiment of the invention provides；
Fig. 3 shows a kind of structural block diagram of field strength adjustable module of second embodiment of the invention offer；
Fig. 4 shows a kind of structure chart of detection processing module of second embodiment of the invention offer；
Fig. 5 shows a kind of structural block diagram of power module of second embodiment of the invention offer.
Icon：100- resistance measuring system；110- ER fluid device；120- electric resistance measuring apparatus；121- field strength is adjustable
Module；122- detection processing module；123- power module；1211- voltage-adjustable power；1212- field strength circuit；1221- electric current
Measuring instrument；1222- data processor；1223- image display；1231- battery apparatus；1232- switching circuit.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot understand
For indication or suggestion relative importance.And in the description of the present invention, it is also necessary to explanation, unless otherwise specific regulation and
It limiting, term " connection ", " coupling " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or
It is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be by between intermediary
It connects connected, can be the connection inside two elements.For the ordinary skill in the art, can be understood with concrete condition
The concrete meaning of above-mentioned term in the present invention.
First embodiment
Referring to Fig. 1, first embodiment of the invention provides a kind of resistance measuring system 100, the resistance measuring system 100
Including：ER fluid device 110 and electric resistance measuring apparatus 120.Wherein, ER fluid device 110 and electric resistance measuring apparatus 120 connect
It connects.
Electric resistance measuring apparatus 120 is hindered for the current resistance value in ER fluid device 110 from the first change in resistance to second
During value, detect the current value in 110 circuit of ER fluid device by the first electric current corresponding with first resistance value
Value changes to the second current value corresponding with second resistance value, then can be based on 110 both ends of ER fluid device
Present current value in 110 circuit of voltage value and ER fluid device obtains the current resistance value of ER fluid device 110.
Second embodiment
Referring to Fig. 2, second embodiment of the invention provides a kind of electric resistance measuring apparatus 120, electric resistance measuring apparatus 120 is answered
For electric resistance measuring apparatus 120, which includes：Field strength adjustable module 121, power module 123 and detection
Processing module 122；Wherein, the field strength adjustable module 121 is connect with the ER fluid device 110, the power module 123
Connect with the ER fluid device 110, the detection processing module 122 respectively with the ER fluid device 110 and described
Power module 123 connects.In the present embodiment, the ER fluid device 110 includes ER fluid, the first pole plate and the second pole
Plate, the ER fluid is in the slot between the first pole plate and the second pole plate.
Field strength adjustable module 121 is the output of field strength adjustable module 121 for the current resistance value in ER fluid device 110
The first field intensity value corresponding first resistance value when, the second field intensity value is exported, so that the current resistance value is from the first resistance value tune
Whole is the second resistance value corresponding with second field intensity value.It is understood that ER fluid device 110 is pretended in no impressed field
Under, electrically conductive particles are in disordered state in ER fluid；With the increase of additional field strength, electrically conductive particles in ER fluid can be by
Unordered-substantially orderly-orderly (chain breakage)-orderly (chain molding)-orderly (chain overstriking) this rule changes, ER
Resistance in material is also changed by insulator-semiconductor-conductor shape body, i.e., the size of additional field strength and current device
There are certain relationships for resistance size, and the value of additional field strength is different, and the resistance of current device is also different.
Detection processing module 122, in the current resistance value from first change in resistance to second resistance value
In the process, detect the current value in 110 circuit of ER fluid device by the first electricity corresponding with the first resistor value
Flow valuve changes to the second current value corresponding with the second resistance value.It is understood that in the ER fluid device 110
Electricity in the case that both end voltage is constant, with the variation of 110 resistance value of ER fluid device, in 110 circuit of ER fluid device
Stream is also with variation, i.e., the current value in the resistance value of ER fluid device 110 and 110 circuit of ER fluid device is in one-to-one correspondence
Relationship, different resistance values correspond to different current values.Therefore, can according to the current value in electric 110 circuit of ER fluid device with
The voltage at 110 both ends of ER fluid device is loaded, 110 current resistance value of ER fluid device is obtained.
Further, referring to Fig. 3, the field strength adjustable module 121 includes：Voltage-adjustable power 1211 and field strength circuit
1212, voltage-adjustable power 1211 is connect with the second pole plate of field strength circuit 1212 and ER fluid device 110 respectively, field strength electricity
Road 1212 is connect with the first pole plate of ER fluid device 110, and voltage-adjustable power 1211, field strength circuit 1212 and electric current become
A circuit is collectively formed in liquid device 110, wherein voltage-adjustable power 1211, in the current of the field strength circuit 1212
When field intensity value is first field intensity value, second voltage value is exported, to control the current field strength from first field intensity value
It is adjusted to second field intensity value.Wherein, in the present embodiment, voltage-adjustable power 1211 is adjustable high voltage power supply, at other
In embodiment, voltage-adjustable power 1211 may be other.Field strength circuit 1212 is exported based on voltage-adjustable power 1211
Voltage value size generates corresponding electric field force, it is to be understood that the voltage magnitude that voltage-adjustable power 1211 exports is got over
Greatly, the electric field force that field strength circuit 1212 generates is stronger, and different voltage corresponds to different field intensity values.Wherein, in the present embodiment,
The output of field strength circuit 1212 be electric field be uniform electric field.
Further, Fig. 2, Fig. 3 and Fig. 4 are please referred to, the detection processing module 122 includes：Current measuring instrument 1221,
Wherein, current measuring instrument 1221 is connect with the second pole plate of ER fluid device 110 and power module 123 respectively, current measurement
Instrument 1221 is connected in the circuit that power module 123 and ER fluid rotary device are formed, and current measuring instrument 1221 for examining in real time
The current value in 110 circuit of ER fluid device is surveyed, in the present embodiment, current measuring instrument 1221 can be sensitive galvanometer,
In other embodiments, current measuring instrument 1221 may be that other can measure the device of electric current.Sensitive measurement meter it be one
The highly sensitive moving- coil instrument of kind, can measure the Weak current of 10^-7~10^-12A, such as be used as bridge measurement, thermoelectric
Even, electromagnetic induction and photoelectric effect etc..Due to the current value very little in 110 circuit of ER fluid device, in the present embodiment
In, current measuring instrument 1221 selects high-sensitivity measurement table, improves measurement accuracy.It is faint in circuit being checked with sensitive galvanometer
Electric current when, can determine in circuit from whether galvanometer pointer deflects and there is no current to pass through.If pointer deflects to the right, table
Bright circuit has electric current from "+" binding post to "-" binding post；If pointer deflects to the left, show current direction by "-" binding post
Flow to "+" binding post.It is understood that in the case where 110 both end voltage of ER fluid device is constant, with electric current
Become the variation of 110 resistance value of liquid device, the electric current in 110 circuit of ER fluid device is examined also with variation, current measuring instrument 1221
The current value measured corresponds to different current values also with variation, i.e., different resistance values.It therefore, can be according to current measuring instrument
1221 current values detected and load obtain ER fluid device 110 and currently hinder in the voltage at 110 both ends of ER fluid device
Value.
As an implementation, detection processing module 122 further includes：Data processor 1222, the data processor
1222 connect with the current measuring instrument 1221 and the adjustable voltage power supply respectively, and the data processor 1222 is for being based on
The voltage value that current value and the voltage-adjustable power 1211 in 110 circuit of ER fluid device export, obtains
The first corresponding relationship between the voltage value and the current value, it is to be understood that by adjusting voltage-adjustable power
The voltage value of 1211 outputs, so that the resistance value of ER fluid device 110 also changes correspondingly, in the voltage that power module 123 provides
In the case where remaining unchanged, the current value in 110 circuit of ER fluid device is also with change, therefore, data processor 1222
Based on the current value and the voltage value that exports of voltage-adjustable power 1211 in 110 circuit of ER fluid device, described in acquisition
The first corresponding relationship between voltage value and the current value.
As an implementation, the data processor 1222, is also used to obtain the voltage value and the electric current becomes
The second corresponding relationship between the resistance value of liquid device 110, it is to be understood that the data processor 1222 is based on described
The voltage of current value and the power module 123 that current measuring instrument 1221 detects, obtains the ER fluid device 110
Resistance value, the data device obtain the voltage value and the ER fluid device 110 that the voltage-adjustable power 1211 exports
The second corresponding relationship between resistance value.
As an implementation, the data processor 1222 is also used to obtain the field strength of the field strength circuit 1212
Third corresponding relationship between value and the resistance value of the ER fluid device 110, it is to be understood that the data processor
The voltage of 1222 current values detected based on the current measuring instrument 1221 and the power module 123, described in acquisition
The resistance value of ER fluid device 110, the field intensity value of the field strength circuit 1212 and the voltage-adjustable power 1211 output
Voltage value is proportional to, and the data processor 1222 obtains institute based on the voltage value that the voltage-adjustable power 1211 exports
The field intensity value of field strength circuit 1212 is stated, then the data processor 1222 obtains field intensity value and the institute of the field strength circuit 1212
State the third corresponding relationship between the resistance value of ER fluid device 110.
Further, the detection processing module 122 further includes：Image display 1223, described image display 1223
It being connect with the data processor 1222, described image display 1223 is used for first corresponding relationship, and described second pair
It should be related to and/or the third corresponding relationship is shown with image, wherein in the present embodiment, described image display 1223 is used
It is shown in by first corresponding relationship, second corresponding relationship and/or the third corresponding relationship with lines.
As an implementation, referring to figure 2. and Fig. 5, the power module 123 include：Battery apparatus 1231, it is described
Voltage needed for battery apparatus 1231 is used to provide the described ER fluid device 110, wherein the battery apparatus 1231 can be
Rechargeable battery, dry cell etc., in the present embodiment, the battery apparatus 1231 are dry cell.
Further, the power module 123 further includes：Switching circuit 1232, the switching circuit 1232 and the electricity
Pool equipment 1231 connects, and the switching circuit 1232 is used to control the ER fluid device 110 and the power-supply device is common
The disconnection and connection in the circuit of formation.
It is apparent to those skilled in the art that for convenience and simplicity of description, the method for foregoing description
Specific work process, can be with reference to the corresponding process in aforementioned device, details are not described herein.
In summary：The embodiment of the invention provides a kind of electric resistance measuring apparatus 120 and system, the electric resistance measuring apparatus
120 are applied to ER fluid device 110, and the electric resistance measuring apparatus 120 includes：Field strength adjustable module 121, power module 123
And detection processing module 122；Wherein, the field strength adjustable module 121 is connect with the ER fluid device 110, the electricity
Source module 123 is connect with the ER fluid device 110, the detection processing module 122 respectively with the ER fluid device
110 and the power module 123 connect；The field strength adjustable module 121, in the current of the ER fluid device 110
When resistance value is the first field intensity value corresponding first resistance value of the field strength adjustable module 121 output, the second field intensity value is exported, so that
The current resistance value is adjusted to the second resistance value corresponding with second field intensity value from first resistance value；The detection processing mould
Block 122, for detecting the electricity during current resistance value is from first change in resistance to second resistance value
Current value in 110 circuit of rheology liquid device is changed to and second resistance by the first current value corresponding with first resistance value
It is worth corresponding second current value, realizes the resistance value measurement of the ER fluid device 110 under DC Electric Field.
These are only the preferred embodiment of the present invention, is not intended to restrict the invention, for those skilled in the art
For member, the invention may be variously modified and varied.All within the spirits and principles of the present invention, it is made it is any modification,
Equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of electric resistance measuring apparatus, which is characterized in that be applied to ER fluid device, the electric resistance measuring apparatus includes：?
Strong adjustable module, power module and detection processing module；Wherein, the field strength adjustable module and the ER fluid device connect
Connect, the power module is connect with the ER fluid device, the detection processing module respectively with the ER fluid device
It is connected with the power module；
The field strength adjustable module is field strength adjustable module output for the current resistance value in the ER fluid device
When corresponding first resistance value of the first field intensity value, the second field intensity value is exported, so that the current resistance value is adjusted from first resistance value
For the second resistance value corresponding with second field intensity value；
The detection processing module, in the current resistance value from first change in resistance to the process of second resistance value
In, detect that the current value in ER fluid device circuit is changed to by the first current value corresponding with first resistance value
The second current value corresponding with second resistance value.
2. electric resistance measuring apparatus according to claim 1, which is characterized in that the field strength adjustable module includes：Voltage can
Adjust power supply and field strength circuit, the voltage-adjustable power and the field strength circuit connection, the voltage-adjustable power, in institute
When the current field strength for stating field strength circuit is first field intensity value, second voltage value is exported, to control the current field strength
Second field intensity value is adjusted to from first field intensity value.
3. electric resistance measuring apparatus according to claim 2, which is characterized in that the detection processing module includes：Electric current is surveyed
Measure instrument.
4. electric resistance measuring apparatus according to claim 3, which is characterized in that the detection processing module further includes：Data
Processor, the data processor are connect with the current measuring instrument, and the data processor is used to be based on the electric current
Become the current value in liquid device circuit and the voltage value of voltage-adjustable power output, obtains the voltage value and the electric current
The first corresponding relationship between value.
5. electric resistance measuring apparatus according to claim 4, which is characterized in that the data processor is also used to obtain institute
State the second corresponding relationship between voltage value and the resistance value of the ER fluid device.
6. electric resistance measuring apparatus according to claim 5, which is characterized in that the data processor is also used to obtain institute
State the third corresponding relationship between the field intensity value of field strength circuit and the resistance value of the ER fluid device.
7. electric resistance measuring apparatus according to claim 6, which is characterized in that the detection processing module further includes：Image
Display, described image display are connect with the data processor, and described image display is for showing that described first is corresponding
Relationship, second corresponding relationship and/or the third corresponding relationship.
8. electric resistance measuring apparatus according to claim 1, which is characterized in that the power module includes：Battery apparatus, institute
State voltage needed for battery apparatus is used to provide the described ER fluid device.
9. electric resistance measuring apparatus according to claim 8, which is characterized in that the power module further includes：Switching circuit,
The switching circuit is connect with the battery apparatus, and the switching circuit is for controlling the ER fluid device and the power supply
The disconnection and connection in the circuit that equipment is collectively formed.
10. a kind of resistance measuring system, which is characterized in that the resistance measuring system includes：ER fluid device and right are wanted
Electric resistance measuring apparatus described in any claim of 1-9 is sought, the electric resistance measuring apparatus is connect with the ER fluid device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347810.2A CN108828317A (en) | 2018-04-18 | 2018-04-18 | Electric resistance measuring apparatus and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347810.2A CN108828317A (en) | 2018-04-18 | 2018-04-18 | Electric resistance measuring apparatus and system |
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| CN108828317A true CN108828317A (en) | 2018-11-16 |
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| CN201810347810.2A Pending CN108828317A (en) | 2018-04-18 | 2018-04-18 | Electric resistance measuring apparatus and system |
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Citations (4)
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|---|---|---|---|---|
| CN1126284A (en) * | 1994-10-25 | 1996-07-10 | 中国科学院物理研究所 | Apparatus and method for reinforcing electric rheological effect |
| CN1719265A (en) * | 2005-08-04 | 2006-01-11 | 上海交通大学 | Measuring circuit of electric rheological liquid high electric field strength dielectric constant |
| CN206596620U (en) * | 2017-03-13 | 2017-10-31 | 梁辰宇 | A kind of high-voltage electric field sterilizer |
| CN208140797U (en) * | 2018-04-18 | 2018-11-23 | 四川文理学院 | Electric resistance measuring apparatus and system |
-
2018
- 2018-04-18 CN CN201810347810.2A patent/CN108828317A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1126284A (en) * | 1994-10-25 | 1996-07-10 | 中国科学院物理研究所 | Apparatus and method for reinforcing electric rheological effect |
| CN1719265A (en) * | 2005-08-04 | 2006-01-11 | 上海交通大学 | Measuring circuit of electric rheological liquid high electric field strength dielectric constant |
| CN206596620U (en) * | 2017-03-13 | 2017-10-31 | 梁辰宇 | A kind of high-voltage electric field sterilizer |
| CN208140797U (en) * | 2018-04-18 | 2018-11-23 | 四川文理学院 | Electric resistance measuring apparatus and system |
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| Title |
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| 刘晓龙等: "电流变液介电常数与电导率的测量", 《武汉工业学院学报》 * |
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Application publication date: 20181116 |
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| RJ01 | Rejection of invention patent application after publication |