CN106248171A - The detection device of liquid capacity is measured in a kind of electric coupling - Google Patents
The detection device of liquid capacity is measured in a kind of electric coupling Download PDFInfo
- Publication number
- CN106248171A CN106248171A CN201610770076.1A CN201610770076A CN106248171A CN 106248171 A CN106248171 A CN 106248171A CN 201610770076 A CN201610770076 A CN 201610770076A CN 106248171 A CN106248171 A CN 106248171A
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- module
- main control
- capacity
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- 239000007788 liquid Substances 0.000 title claims abstract description 86
- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 230000008878 coupling Effects 0.000 title claims abstract description 14
- 238000010168 coupling process Methods 0.000 title claims abstract description 14
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 14
- 239000000523 sample Substances 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 18
- 239000011889 copper foil Substances 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 13
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000005253 cladding Methods 0.000 claims abstract description 4
- 238000005070 sampling Methods 0.000 claims description 44
- 239000004065 semiconductor Substances 0.000 claims description 27
- 230000005611 electricity Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 238000012544 monitoring process Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 1
- 230000036760 body temperature Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000036413 temperature sense Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
Landscapes
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
The present invention relates to a kind of electric coupling and measure the detection device of liquid capacity, including detection container and testing circuit, described detection container includes insulating vessel body, the lateral surface cladding Copper Foil of described insulating vessel body, described detection container bottom is provided with a probe, and described testing circuit includes liquid capacity detection module, TDS detection module, temperature detecting module and main control module.The detection device assembling that liquid capacity is measured in the electric coupling that the present invention provides is simple, and cost is relatively low；Certainty of measurement is higher, to measuring good environmental adaptability；Good in anti-interference performance；Low in energy consumption；Can extensively adapt to various use scene, even if container lean, also can realize accurately measuring.
Description
Technical field
The present invention relates to the detection device of a kind of capacity, be specifically related to a kind of electric coupling and measure the detection dress of liquid capacity
Put, belong to electron detection device field.
Background technology
At present, in prior art, the method measuring liquid in containers capacity mainly has container outer wall to indicate scale method and pressure
Power change method of testing.When utilizing container outer wall to indicate scale method measurement liquid capacity, the outer wall of container need to indicate scale, operator
By the direct paired observation of naked eyes.The method has the disadvantage that container outer wall must be transparent；Affected by operator's subjective factors
Bigger, it is not easy to ensure the precision of measurement result.When utilizing pressure change method of testing to measure liquid capacity, when liquid in container weight
During amount change, necessarily lead to the change of pressure, by arranging the change of the above-mentioned pressure of pressure sensor senses, and by this pressure
Change is scaled liquid capacity.The method has the disadvantage that pressure transducer is relatively costly, assembling difficulty, especially assembles
During narrow space；Certainty of measurement is poor, and container needs level to put, and surveys probability higher by mistake；Pressure transducer needs straight with liquid
Contact, easily pollutes liquid, also easily liquid body temperature and the impact of kind of its measuring accuracy.Additionally, measurement error is bigger；Easily
Affected by environment and static interference；When the receptacle is tilted, container outer wall indicates scale method and pressure change method of testing all cannot enter
Row is accurately measured.
Summary of the invention
In order to solve above-mentioned technical problem, the detection device assembling letter of liquid capacity is measured in the electric coupling that the present invention provides
Single, cost is relatively low；Certainty of measurement is higher, to measuring good environmental adaptability；Good in anti-interference performance；Low in energy consumption；Can extensively adapt to
Various use scenes, even if container lean, also can realize accurately measuring.
Technical scheme is as follows:
The detection device of liquid capacity is measured in a kind of electric coupling, and including detection container and testing circuit, described detection container includes
Insulating vessel body, the lateral surface cladding Copper Foil of described insulating vessel body, described detection container bottom is provided with a probe, institute
State testing circuit and include liquid capacity detection module, TDS detection module, temperature detecting module and main control module；Described liquid holds
Amount detection module receives the magnitude of voltage Ut between probe and the Copper Foil that probe sends and sends to main control module, and described TDS detects
Module receives the TDS value of the liquid that probe sends and sends to main control module, and described temperature detecting module receives the temperature of liquid
Value T also sends to main control module, and described main control module receives magnitude of voltage Ut, the TDS inspection that liquid capacity detection module sends respectively
Survey the TDS value of the liquid that module sends and the temperature value T of the liquid of temperature detecting module output liquid capability value.
Wherein, described liquid capacity detection module includes binding post J1, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, resistance R1 and resistance
R7；Described Copper Foil is connected with the port 2 of binding post J1, and described probe is connected with the port 1 of binding post J1, metal-oxide-semiconductor Q1's
Drain electrode is connected with positive source, and the grid of metal-oxide-semiconductor Q1 is connected with resistance R1 one end, the other end of resistance R1 and the arteries and veins of main control module
Rushing signal output part to connect, the source electrode of metal-oxide-semiconductor Q1 is connected with the port 1 of binding post J1, metal-oxide-semiconductor Q2 drain electrode and binding post J1
Port 1 connect, the grid of metal-oxide-semiconductor Q2 is connected with the grid of metal-oxide-semiconductor Q1, the source ground of metal-oxide-semiconductor Q2, resistance R7 one end with connect
The port 2 of line terminals J1 connects, resistance R7 other end ground connection.
Wherein, described TDS detection module includes that shunt capacitance C2, shunt capacitance C3, shunt capacitance C4, integrated computation amplify
Device LM321, the first sampling terminal J2, the second sampling terminal J3, resistance R2, resistance R3 and resistance R8；Shunt capacitance C2 one end with
Positive source connects, and shunt capacitance C2 other end ground connection, shunt capacitance C3 one end is believed with the same of integrated operational amplifier LM321
Number input connects, the other end ground connection of shunt capacitance C3, and resistance R3 one end connects positive source, the resistance R3 other end and resistance
R2 connects, the other end ground connection of resistance R2, with the inverting input of integrated operational amplifier LM321 between resistance R3 and resistance R2
Connect, the in-phase signal input of the first sampling terminal J2 and integrated operational amplifier LM321 is connected, the first sampling terminal J2 and
Second sampling terminal J3 gathers the magnitude of voltage between the first sampling terminal J2 and the second sampling end via integrated operational amplifier
LM321 exports the TDS value sampling input of the liquid to main control module, one end of resistance R8 and integrated operational amplifier LM321
In-phase signal input connect, the other end ground connection of resistance R8, the second sampling terminal J3 is connected with positive source, integrated computation
Amplifier LM321 outfan is connected with shunt capacitance C4, the other end ground connection of shunt capacitance C4.
Wherein, described temperature detecting module includes digital temperature sensor DS18B20 and resistance R5；Digital temperature sensor
The data signal output of DS18B20 is connected with resistance R5 one end, and the other end of resistance R5 is connected with positive source, digital temperature
The data signal output of sensor DS18B20 is connected with the temperature sampling end of main control module.
Wherein, described main control module includes single-chip microprocessor MCU-51, electric capacity C1, resistance R6 and download port J5；Electric capacity C1 is just
Pole is connected with positive source, ground connection after electric capacity C1 negative pole series resistance R6, the common node between electric capacity C1 and resistance R6 and list
The reseting port of sheet machine MCU-51 connects, and the port 1 of binding post J1 connects with the voltage Ut sampling input of single-chip microprocessor MCU-51
Connecing, the pulse signal output end of single-chip microprocessor MCU-51 is to described liquid capacity detection module output detections square-wave signal, single-chip microcomputer
The voltage Ut sampling input of MCU-51 receives magnitude of voltage at the port 1 of binding post J1, the letter of integrated operational amplifier LM321
Number outfan input of sampling with the TDS value of the liquid of single-chip microprocessor MCU-51 is connected；The data transmit-receive end of single-chip microprocessor MCU-51 with
Download port J5 connects.
There is advantages that
1, the present invention assembles simply, and cost is relatively low；Good in anti-interference performance；Low in energy consumption.
2, certainty of measurement of the present invention is higher, to measuring good environmental adaptability.
3, the present invention can extensively adapt to various use scene, even if container lean, also can realize accurately measuring.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the testing circuit of the present invention；
Fig. 2 is the structural representation that the detection device of liquid capacity is measured in electric coupling of the present invention；
Fig. 3 is the fundamental diagram of the testing circuit of the present invention；
In figure, reference is expressed as:
1-detects container, 2-testing circuit, 11-insulating vessel body, 12-Copper Foil, 13-probe.
Detailed description of the invention
It is next with specific embodiment below in conjunction with the accompanying drawings that the present invention will be described in detail.
With reference to Fig. 2, the detection device of liquid capacity is measured in a kind of electric coupling, including detection container 1 and testing circuit 2, institute
Stating detection container 1 and include insulating vessel body 11, the lateral surface cladding Copper Foil 12 of described insulating vessel body 11, described detection is held
Be provided with a probe 13 bottom device 1, with reference to Fig. 1, described testing circuit 2 include liquid capacity detection module, TDS detection module,
Temperature detecting module and main control module；Described liquid capacity detection module receives between probe 13 and the Copper Foil 12 that probe 13 sends
Magnitude of voltage Ut and to main control module send, described TDS detection module detection liquid TDS value and to main control module transmission, institute
Stating temperature detecting module receive the temperature value T of liquid and send to main control module, described main control module receives liquid capacity respectively
The TDS value of the liquid that magnitude of voltage Ut, the TDS detection module that detection module sends sends and the temperature of the liquid of temperature detecting module
Angle value T output liquid capability value.
Preferably, described liquid capacity detection module includes binding post J1, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, resistance R1 and electricity
Resistance R7；Described Copper Foil 12 is connected with the port 2 of binding post J1, and described probe 13 is connected with the port 1 of binding post J1, MOS
The drain electrode of pipe Q1 is connected with positive source, and the grid of metal-oxide-semiconductor Q1 is connected with resistance R1 one end, the other end of resistance R1 and master control mould
The pulse signal output end of block connects, and the source electrode of metal-oxide-semiconductor Q1 is connected with the port 1 of binding post J1, metal-oxide-semiconductor Q2 drain electrode and wiring
The port 1 of terminal J1 connects, and the grid of metal-oxide-semiconductor Q2 is connected with the grid of metal-oxide-semiconductor Q1, the source ground of metal-oxide-semiconductor Q2, resistance R7 mono-
End is connected with the port 2 of binding post J1, resistance R7 other end ground connection.
Preferably, described TDS detection module includes that shunt capacitance C2, shunt capacitance C3, shunt capacitance C4, integrated computation are put
Big device LM321, the first sampling terminal J2, the second sampling terminal J3, resistance R2, resistance R3 and resistance R8；Shunt capacitance C2 one end
It is connected with positive source, shunt capacitance C2 other end ground connection, shunt capacitance C3 one end and the homophase of integrated operational amplifier LM321
Signal input part connects, the other end ground connection of shunt capacitance C3, and resistance R3 one end connects positive source, the resistance R3 other end and electricity
Resistance R2 connects, the other end ground connection of resistance R2, with the anti-phase input of integrated operational amplifier LM321 between resistance R3 and resistance R2
End connects, and the in-phase signal input of the first sampling terminal J2 and integrated operational amplifier LM321 is connected, the first sampling terminal J2
And the second sampling terminal J3 gathers the magnitude of voltage between the first sampling terminal J2 and the second sampling end via integrated operational amplifier
LM321 exports the TDS value sampling input of the liquid to main control module, one end of resistance R8 and integrated operational amplifier LM321
In-phase signal input connect, the other end ground connection of resistance R8, the second sampling terminal J3 is connected with positive source, integrated computation
Amplifier LM321 outfan is connected with shunt capacitance C4, the other end ground connection of shunt capacitance C4.
Preferably, described temperature detecting module includes digital temperature sensor DS18B20 and resistance R5；Digital temperature senses
The data signal output of device DS18B20 is connected with resistance R5 one end, and the other end of resistance R5 is connected with positive source, numeral temperature
The data signal output of degree sensor DS18B20 is connected with the temperature sampling end of main control module.
Preferably, described main control module includes single-chip microprocessor MCU-51, electric capacity C1, resistance R6 and download port J5；Electric capacity C1
Positive pole is connected with positive source, ground connection after electric capacity C1 negative pole series resistance R6, the common node between electric capacity C1 and resistance R6 with
The reseting port of single-chip microprocessor MCU-51 connects, the port 1 of binding post J1 and the voltage Ut sampling input of single-chip microprocessor MCU-51
Connecting, the pulse signal output end of single-chip microprocessor MCU-51 is to described liquid capacity detection module output detections square-wave signal, monolithic
The voltage Ut sampling input of machine MCU-51 receives magnitude of voltage at the port 1 of binding post J1, integrated operational amplifier LM321's
Signal output part is connected with the TDS value sampling input of the liquid of single-chip microprocessor MCU-51；The data transmit-receive end of single-chip microprocessor MCU-51
It is connected with download port J5.
Preferably, the model that described single-chip microprocessor MCU-51 uses is STC12C5204AD.
The operation principle of the present invention is as follows:
As it is shown on figure 3, described liquid capacity detection module receives between probe (13) and the Copper Foil (12) that probe (13) sends
Magnitude of voltage Ut also sends to main control module, and described TDS detection module receives the first sampling terminal J2, the second sampling terminal J3 gathers
Magnitude of voltage between first sampling terminal and the second sampling terminal, and the TDS value of liquid is sent to main control module, described temperature is examined
Surveying the temperature value T of module detection liquid and send to main control module, described main control module receives liquid capacity detection module respectively
The magnitude of voltage Ut sent and described time difference t, the TDS value of the liquid that TDS detection module sends and the liquid of temperature detecting module
The temperature value T of body output liquid capability value.
Probe (13) and Copper Foil (12) are accessed the binding post J1 of liquid capacity detection module, by single-chip microprocessor MCU-51 end
Mouthful drive circuit produces the square-wave signal of fixed frequency and exports to pulse signal output end PWS, (this fixed frequency with in container
Large Copacity is as the criterion, and the test frequency of 380ml ± 50ml is 10KHz) and encourage the grid of metal-oxide-semiconductor Q1 of liquid capacity detection module
Pole, single-chip microprocessor MCU-51 sampling input connects the port 1 of the binding post J1 of liquid capacity detection module, single-chip microprocessor MCU-51
Magnitude of voltage Ut single-chip microcomputer when 0V to maximum voltage value 5V of port 1 output of sampling input ADC monitoring binding post J1 is defeated
Go out pulse number, calculate time difference t needed for 0V to maximum voltage 5V by pulse number, by RC capacitances in series discharge charge
Electricity principle type calculates the electrical quantity C of liquid capacity detection module:
C = t/(R*ln(U/Ut))
The resistance of resistance R7 during wherein R is circuit, ln is the logarithm with e as the truth of a matter, and U is supply voltage value 5V, and Ut is single-chip microcomputer
Magnitude of voltage between probe (13) and the Copper Foil (12) that the port of the binding post J1 of liquid capacity detection module reads.Calculate
After going out liquid capacity detection module parameter C, single-chip microprocessor MCU-51 draw the liquid capacity value of correspondence.Due to value of electrical signals and liquid
The temperature value of body and the TDS value (liquid electric conductivity concentration) of liquid are relevant, therefore to avoid the TDS of temperature of liquid and liquid
The interference of value, the TDS value that must be added to temperature value and liquid during measuring is modified, thus show that liquid in container is real
Border volume, by the TDS value of observed temperature value and liquid by the correction relational expression drawn after MATLAB linear fit, via temperature
Degree monitoring modular exports observed temperature value to main control module, via TDS monitoring modular to the TDS value of main control module output liquid:
Cx=x(1)+x(2)*sin(2)+ TDS *cos(T)+ TDS *sin(TDS)^3；
Wherein x (n) is to survey the real test value that dielectric coefficient ε, TDS are liquid electric conductivity concentration, and T is temperature of liquid value, and Cx is
Revised electrical parameter values；Finally, liquid capacity is conversed according to revised electrical parameter values Cx.The liquid capacity conversed can
Shown through downloading terminal J5 connection display operation module by the data transmit-receive end RXD/TXD of single-chip microcomputer, described display operation
Module can be electronic display etc..Display operation module can also connect the reseting terminal RST of single-chip microcomputer and carry out the operation that resets.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
Equivalent structure or equivalence flow process that bright description and accompanying drawing content are made convert, or are directly or indirectly used in other relevant skills
Art field, is the most in like manner included in the scope of patent protection of the present invention.
Claims (5)
1. the detection device of an electric coupling measurement liquid capacity, it is characterised in that: include detecting container (1) and testing circuit
(2), described detection container includes insulating vessel body (11), the lateral surface cladding Copper Foil of described insulating vessel body (11)
(12), described detection container (1) bottom be provided with a probe (13), described testing circuit (2) include liquid capacity detection module,
TDS detection module, temperature detecting module and main control module；Described liquid capacity detection module receives the probe that probe (13) sends
(13) magnitude of voltage Ut and between Copper Foil (12) also sends to main control module, and the TDS value of described TDS detection module detection liquid is also
Sending to main control module, described temperature detecting module detects the temperature value T of liquid and sends to main control module, described main control module
Receive TDS value and the temperature inspection of the liquid of magnitude of voltage Ut, the TDS detection module transmission that liquid capacity detection module sends respectively
Survey temperature value T the output liquid capability value of the liquid of module.
The detection device of liquid capacity is measured in a kind of electric coupling the most according to claim 1, it is characterised in that: described liquid
Body capacity check module includes binding post J1, metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q2, resistance R1 and resistance R7；Described Copper Foil (12) with connect
The port 2 of line terminals J1 connects, and described probe (13) is connected with the port 1 of binding post J1, and the drain electrode of metal-oxide-semiconductor Q1 is with power supply just
Pole connects, and the grid of metal-oxide-semiconductor Q1 is connected with resistance R1 one end, the other end of resistance R1 and the pulse signal output end of main control module
Connecting, the source electrode of metal-oxide-semiconductor Q1 is connected with the port 1 of binding post J1, and metal-oxide-semiconductor Q2 drain electrode is connected with the port 1 of binding post J1,
The grid of metal-oxide-semiconductor Q2 is connected with the grid of metal-oxide-semiconductor Q1, the source ground of metal-oxide-semiconductor Q2, resistance R7 one end and the end of binding post J1
Mouth 2 connects, resistance R7 other end ground connection.
The detection device of liquid capacity is measured in a kind of electric coupling the most as claimed in claim 2, it is characterised in that: described TDS examines
Survey module and include shunt capacitance C2, shunt capacitance C3, shunt capacitance C4, integrated operational amplifier LM321, the first sampling terminal
J2, the second sampling terminal J3, resistance R2, resistance R3 and resistance R8；Shunt capacitance C2 one end is connected with positive source, shunt capacitance
C2 other end ground connection, shunt capacitance C3 one end is connected with the in-phase signal input of integrated operational amplifier LM321, shunt capacitance
The other end ground connection of C3, resistance R3 one end connects positive source, and the resistance R3 other end is connected with resistance R2, the other end of resistance R2
Ground connection, between resistance R3 with resistance R2, the inverting input with integrated operational amplifier LM321 is connected, the first sampling terminal J2 with
The in-phase signal input of integrated operational amplifier LM321 connects, the first sampling terminal J2 and the second sampling terminal J3 collection the
Magnitude of voltage between one sampling terminal J2 and the second sampling end is via the liquid of integrated operational amplifier LM321 output to main control module
The TDS value sampling input of body, one end of resistance R8 is connected with the in-phase signal input of integrated operational amplifier LM321, electricity
The other end ground connection of resistance R8, the second sampling terminal J3 is connected with positive source, integrated operational amplifier LM321 outfan and bypass
Electric capacity C4 connects, the other end ground connection of shunt capacitance C4.
The detection device of liquid capacity is measured in a kind of electric coupling the most as claimed in claim 3, it is characterised in that: described temperature is examined
Survey module and include digital temperature sensor DS18B20 and resistance R5；The data signal output of digital temperature sensor DS18B20
Being connected with resistance R5 one end, the other end of resistance R5 is connected with positive source, the data signal of digital temperature sensor DS18B20
Outfan is connected with the temperature sampling end of main control module.
The detection device of liquid capacity is measured in a kind of electric coupling the most as claimed in claim 4, it is characterised in that: described master control mould
Block includes single-chip microprocessor MCU-51, electric capacity C1, resistance R6 and download port J5；Electric capacity C1 positive pole is connected with positive source, electric capacity C1
Ground connection after negative pole series resistance R6, the common node between electric capacity C1 and resistance R6 connects with the reseting port of single-chip microprocessor MCU-51
Connecing, the port 1 of binding post J1 is connected with the voltage Ut sampling input of single-chip microprocessor MCU-51, the pulse letter of single-chip microprocessor MCU-51
Number outfan is to described liquid capacity detection module output detections square-wave signal, and the voltage Ut of single-chip microprocessor MCU-51 samples input
Receive magnitude of voltage at the port 1 of binding post J1, the signal output part of integrated operational amplifier LM321 and single-chip microprocessor MCU-
The TDS value sampling input of the liquid of 51 connects；The data transmit-receive end of single-chip microprocessor MCU-51 is connected with download port J5.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610770076.1A CN106248171A (en) | 2016-08-30 | 2016-08-30 | The detection device of liquid capacity is measured in a kind of electric coupling |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610770076.1A CN106248171A (en) | 2016-08-30 | 2016-08-30 | The detection device of liquid capacity is measured in a kind of electric coupling |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008136002A2 (en) * | 2007-05-07 | 2008-11-13 | Bromine Compounds Ltd. | Method and system for measuring and/or controlling total dissolved solids and total suspended solids in aqueous liquid compositions |
| CN103675023A (en) * | 2012-09-12 | 2014-03-26 | 珠海格力电器股份有限公司 | Detection circuit and detection method of total dissolved solids (TDS) |
| CN103675022A (en) * | 2012-09-06 | 2014-03-26 | 珠海格力电器股份有限公司 | TDS (total dissolved solids) detection method, device and system |
| CN204188517U (en) * | 2014-11-27 | 2015-03-04 | 哈尔滨理工大学 | A kind of two formula liquid-detecting thoroughly |
| US20150268146A1 (en) * | 2014-03-21 | 2015-09-24 | Environmental Express, Inc. | Polymer total dissolved solids vessel |
| CN105212636A (en) * | 2015-11-11 | 2016-01-06 | 成都小爱未来智慧科技有限公司 | A kind of Intelligent water cup detected based on TDS |
| CN206002169U (en) * | 2016-08-30 | 2017-03-08 | 福建金源泉科技发展有限公司 | A kind of electric coupling measures the detection means of liquid capacity |
-
2016
- 2016-08-30 CN CN201610770076.1A patent/CN106248171A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008136002A2 (en) * | 2007-05-07 | 2008-11-13 | Bromine Compounds Ltd. | Method and system for measuring and/or controlling total dissolved solids and total suspended solids in aqueous liquid compositions |
| CN103675022A (en) * | 2012-09-06 | 2014-03-26 | 珠海格力电器股份有限公司 | TDS (total dissolved solids) detection method, device and system |
| CN103675023A (en) * | 2012-09-12 | 2014-03-26 | 珠海格力电器股份有限公司 | Detection circuit and detection method of total dissolved solids (TDS) |
| US20150268146A1 (en) * | 2014-03-21 | 2015-09-24 | Environmental Express, Inc. | Polymer total dissolved solids vessel |
| CN204188517U (en) * | 2014-11-27 | 2015-03-04 | 哈尔滨理工大学 | A kind of two formula liquid-detecting thoroughly |
| CN105212636A (en) * | 2015-11-11 | 2016-01-06 | 成都小爱未来智慧科技有限公司 | A kind of Intelligent water cup detected based on TDS |
| CN206002169U (en) * | 2016-08-30 | 2017-03-08 | 福建金源泉科技发展有限公司 | A kind of electric coupling measures the detection means of liquid capacity |
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