CN103115656A - Method and device for detecting position of fluid channel - Google Patents
Method and device for detecting position of fluid channel Download PDFInfo
- Publication number
- CN103115656A CN103115656A CN2013100711526A CN201310071152A CN103115656A CN 103115656 A CN103115656 A CN 103115656A CN 2013100711526 A CN2013100711526 A CN 2013100711526A CN 201310071152 A CN201310071152 A CN 201310071152A CN 103115656 A CN103115656 A CN 103115656A
- Authority
- CN
- China
- Prior art keywords
- electrode pair
- liquid
- resistance value
- impedance
- over switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Abstract
The invention relates to the technical field of medical detection, in particular to a device and a method for detecting the position of a fluid channel. According to the technical scheme, two pairs of special handled small electrodes are placed on two appointed positions in the middle or a fluid channel pipeline, impedance between the electrodes is collected so as to achieve detecting to the position of the fluid channel, and therefore extracting amount of to-be-detected solution of blood is controlled, and reliability of measurement is increased, furthermore, impedance of the solution is detected through an alternating current impedance method so as to achieve measurement with high precision, and in addition, the position of the fluid channel is detected and meanwhile whether the fluid channel is mixed with bubbles or not can be further judged, and corresponding process is conducted, and therefore precision of system detection is improved.
Description
Technical field
The present invention relates to medical detection technique field, be specifically related to method and the device of a kind of liquid road position probing
Background technology
Liquid road position detecting system usually is applied to be mainly used in controlling the extraction amount of solution to be checked or blood in the relevant instrument such as blood analysis, blood gas analysis.When the diameter in influidic pipe road is larger, generally can be very easily on the market most liquid sensor put into the liquid road, by the processing to electric signal, the position of detecting the liquid road is easier to realize.Development along with the blood testing technology, the instrument of blood analysis is more and more less, corresponding blood or the solution amount to be checked that extracts will be fewer and feweri, and this just requires the pipe diameter of fluid path less, realizes that with the brief biography sensor the accurate location on liquid road becomes the comparison stubborn problem.In addition, liquid commonly used road method for detecting position has capacitive transducer, DC electrode formula etc., and these technology are Shortcomings parts all also, and capacitive transducer needs larger area could realize accurate measurement; Dc impedance survey method is measured the larger solution of impedance, and the resistance of coupling causes more greatly detection reaction insensitive.
Therefore prior art exists deficiency
Summary of the invention
For overcoming defects, purpose of the present invention namely is method and the device of a kind of liquid road position probing.
The objective of the invention is to be achieved through the following technical solutions:
The device of a kind of liquid of the present invention road position probing mainly comprises:
The influidic pipe road;
Pumping device is connected with described influidic pipe road, is used for extracting the solution of described influidic pipe road inlet;
The first electrode pair and the second electrode pair that are used for liquid road position probing, be positioned over two assigned addresses in described influidic pipe road, the electrode diameter of described each electrode pair is 0.1mm～1mm, between two electrodes of each electrode pair, distance range is 0.5mm～2cm, and electrode surface is gold-plated and scribble the water wettability chemicals;
First passage change-over switch and second channel change-over switch are connected with described two electrode pairs respectively, are used for switching the resistance value that gathers described the second electrode pair and the first electrode pair;
Reference resistance is connected with the second channel change-over switch with described first passage change-over switch, is used to subsequent calculations electrode pair resistance value that partial pressure value is provided;
The AC signal source is connected with described reference resistance, be used to the impedance detection circuit of described electrode pair provide one ac-excited;
Signal acquisition control system is connected with described first passage change-over switch, second channel change-over switch and described reference resistance, is used for completing conversion, collection and subsequent treatment and the control of voltage signal.
Further, described signal acquisition control system comprises,
The extracting liquid control module is connected with described pumping device, is used for controlling the pumping device extracting liquid;
The change-over switch control module is connected with the second channel change-over switch with described first passage change-over switch, is used for controlling described first passage change-over switch and second channel change-over switch and switches in the scheduled duration interval;
The precision rectifying unit is connected with the second channel change-over switch with described first passage change-over switch, and the AC signal that is used for dividing potential drop is obtained converts rear output direct current signal;
AD conversion unit is connected with described precision rectifying unit, is used for the analog DC signal is converted to digital signal;
Electrode pair impedance computation unit is connected with described AD conversion unit, is used for calculating according to the digital signal after conversion the resistance value of described the second electrode pair and the first electrode pair;
The first electrode pair impedance threshold judging unit is connected with the extracting liquid control module with described electrode pair impedance computation unit, is used for judging whether the resistance value of described the first electrode pair surpasses the threshold value that presets;
The second electrode pair impedance threshold judging unit, be connected with the extracting liquid control module with described electrode pair impedance computation unit, the first electrode pair impedance threshold judging unit, be used for judging whether the resistance value of described the second electrode pair surpasses the threshold value that presets.
Further, described signal acquisition control system also comprises,
Abnormal prompt and alarm unit, be connected with the second electrode pair impedance threshold judging unit with described the first electrode pair impedance threshold judging unit, be used for carrying out abnormal information output and warning when described the first electrode pair and the second electrode pair resistance value surpass the threshold value that presets.
Further, described the first electrode pair and the second electrode pair are produced on the PCB printed circuit board (PCB), and are enclosed in described influidic pipe road.
The method of a kind of liquid of the present invention road position probing comprises the steps:
The step I, two assigned addresses in the influidic pipe road are placed respectively two pairs of electrodes, the electrode diameter of described each electrode pair is 0.1mm～1mm, and between two electrodes of each electrode pair, distance range is 0.5mm～2cm, and electrode surface is gold-plated and scribble the water wettability chemicals;
The step II is connected two pairs of electrodes respectively by two switchings of switch in scheduled duration with the AC impedance testing circuit, calculate respectively the resistance value of two pairs of electrodes by gathering partial pressure value;
The step III is controlled the pumping device extracting liquid;
Step IV, judgement more near the resistance value of the first electrode pair of inlet in default the first impedance threshold scope? in this way, enter the step V, as no, return to the step III;
Does the step V judge that the resistance value of the second electrode pair is in default the first impedance threshold scope? in this way, enter the step VI, as no, return to the step III;
The step VI stops drawing liquid and carries out fluid analysis and process.
Further, described step IV, also comprises more when the resistance value of the first electrode pair of inlet is in default the first impedance threshold scope when judgement, do you judge that the resistance value of the first electrode pair is in default the second impedance threshold scope? in this way, return to the step III.
Further, as the resistance value that judges the first electrode pair is reported to the police and abnormal prompt not in default the second impedance threshold scope.
Further, described step V when the resistance value of judgement the second electrode pair is not being preset in the first impedance threshold scope, also comprises, judge that the resistance value of the second electrode pair is in default the second impedance threshold scope? in this way, return to the step III.
Further, as the resistance value that judges the second electrode pair is reported to the police and abnormal prompt not in default the second impedance threshold scope.
A kind of blood gas analyzer comprises method and the device of liquid as above road position probing.
Technical scheme provided by the invention, by place the small electrode of two pairs of special processings at two assigned addresses of influidic pipe road central authorities, and the resistance of acquisition electrode realizes thereby the detection of position, liquid road is controlled the extraction amount of solution to be checked or blood, increase and measure reliability, in addition, the impedance that detects solution with AC impedence method realizes high-precision measurement, have again, when detecting position, liquid road, can also further judge in the liquid road whether sneak into bubble and process accordingly, improve the accuracy that system detects.
Description of drawings
In order to be easy to explanation, the present invention is done to describe in detail by following preferred embodiment and accompanying drawing.
Fig. 1 is an embodiment schematic diagram of the device of a kind of liquid of the present invention road position probing;
Fig. 2 is another embodiment schematic diagram of the device of a kind of liquid of the present invention road position probing;
Fig. 3 is an embodiment schematic diagram of the method for a kind of liquid of the present invention road position probing;
Fig. 4 is another embodiment schematic diagram of the method for a kind of liquid of the present invention road position probing.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, is not intended to limit the present invention.
As shown in Figure 1, one of the device of a kind of liquid of the present invention road position probing enforcement illustration specifically describes as follows:
Liquid of the present invention road position detecting device comprises pumping device 11, influidic pipe road 19, liquid road position probing the second electrode pair 12 and the first electrode pair 13, sense channel switches the first switch 14 and second switch 15, AC signal source 17, reference resistance 16 and signal acquisition control system 18.
Be used for two assigned addresses that the second electrode pair 12 of liquid road position probing and the first electrode pair 13 are positioned over described influidic pipe road 19, preferably electrode is placed the central authorities with pipeline, judge by the impedance that detects described electrode pair whether the solution in described liquid road arrives the position of appointment, wherein general preferred the first electrode pair 13 need to be positioned near inlet or its, also namely two electrode pairs compare near inlet be the first electrode pair, the second electrode pair 12 need to be positioned over the target location that solution arrives.The diameter range of each electrode is preferred 0.1mm～1mm, and between two electrodes of every pair of electrode, distance range is preferably 0.5mm～2cm, distance can cause residual solution to cover two electrode surfaces less than 0.5mm, cause detecting unsuccessfully, distance reduces greater than the sensitivity meeting that 2cm detects, and can adjust distance between electrode according to different sensitivity demands.So, the liquid road between electrode pair 12 and electrode pair 13 be just that electrochemical reaction is regional.Electrode pair 12 and electrode pair 13 are preferably the electrode into surface gold-plating, and because electrode is less, solution is difficult for the electrode complete wetting and contacts good.By preferred hydrophilic chemicals on electrode surface point, prerequisite is that these chemicalss can not affect electrochemical reaction, as NaCL, KCL etc.When the solution coated electrode, solution is easier to well contact with electrode, guarantees that solution contacts with the reliable of electrode, and then the reliability of assurance liquid road position probing.
First passage change-over switch 14 is connected with the first electrode pair 13 with described the second electrode pair 12 respectively with second channel change-over switch 15, be used for switching the resistance value that gathers described the second electrode pair 12 and the first electrode pair 13, can preferably adopt analog switch, in the anti-gatherer process of liquid roadlock, can realize only with a signal acquiring system, can gather the anti-information of two-way liquid roadlock, save resource, improve service efficiency.In gatherer process, passage change-over switch 14 and 15 needs in turn to go to switch according to the scheduled duration interval, and when switch 14 was closed, switch 15 disconnected; When switch 14 disconnects, switch 15 closures.
AC signal source 17 is connected with described reference resistance 16, be used to the impedance detection circuit of described electrode pair provide one ac-excited; Its output signal is the AC sine signal, and frequency can free setting, and scope is 10KHz-100KHz.This signal source can adopt the resonant circuit of simulation to realize, also can use derived digital signal DDS synthetic.
Adopt the impedance of AC impedence method measurement solution more accurate: because the dc impedance of medical test solution is larger, generally be about 1M-10M, the employing AC impedence method is measured, its AC impedance value is about 1K-20K, and the resistance of reference resistance matches, and this resistance is more prone to realize high-precision measurement.
Signal acquisition control system 18 is connected with described reference resistance 16 with second channel change-over switch 15 with described first passage change-over switch 14, is used for completing the functions such as conversion, collection, processing and control of voltage signal.Preferred implementation is: the signal conversion is sent the AC signal that dividing potential drop obtains into precise rectification circuit, converts rear output direct current signal; Signals collecting is converted to digital signal with direct current signal, gives CPU and processes; After CPU collects digital signal after conversion, Treatment Analysis, and make corresponding control.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.As shown in Figure 2, another embodiment schematic diagram of the device of a kind of liquid of the present invention road position probing specifically describes as follows:
Described signal acquisition control system 18 also further comprises:
Extracting liquid control module 207 is connected with described pumping device 11, is used for controlling pumping device 11 extracting liquids;
Change-over switch control module 201 is connected with second channel change-over switch 15 with described first passage change-over switch 14, is used for controlling described first passage change-over switch 14 and second channel change-over switch 15 and switches in the scheduled duration interval;
Precision rectifying unit 202 is connected with second channel change-over switch 15 with described first passage change-over switch 14, and the AC signal that is used for dividing potential drop is obtained converts rear output direct current signal;
AD conversion unit 203 is connected with described precision rectifying unit 202, is used for the analog DC signal is converted to digital signal;
Electrode pair impedance computation unit 204 is connected with described AD conversion unit 203, is used for calculating according to the digital signal after conversion the resistance value of described the second electrode pair 12 and the first electrode pair 13;
The first electrode pair impedance threshold judging unit 205 is connected with extracting liquid control module 207 with described electrode pair impedance computation unit 204, is used for judging whether the resistance value of described the first electrode pair 13 surpasses the threshold value that presets;
The second electrode pair impedance threshold judging unit 206, be connected with extracting liquid control module 207 with described electrode pair impedance computation unit 204, the first electrode pair impedance threshold judging unit 205, be used for judging whether the resistance value of described the second electrode pair 13 surpasses the threshold value that presets;
So far, can complete collection and control to signal, certainly can also preferably include:
Abnormal prompt and alarm unit 207, be connected with the second electrode pair impedance threshold judging unit 206 with described the first electrode pair impedance threshold judging unit 205, be used for carrying out abnormal information output and warning when described the first electrode pair and the second electrode pair resistance value surpass the threshold value that presets;
As shown in Figure 3, one of the method for a kind of liquid of the present invention road position probing enforcement illustration specifically describes as follows:
301, place respectively two pairs of electrodes at two assigned addresses in influidic pipe road;
The difference of selecting according to different fluid analysis demands and liquid capacity is selected conveniently to carry out two positions that the detection position is detected in the influidic pipe road, and the modes of emplacement of electrode is various, also can be by making electrode on the PCB printed circuit board (PCB) and enclosing in pipeline;
302, by two switchings of switch in scheduled duration, two pairs of electrodes are connected with the AC impedance testing circuit respectively, calculate respectively the resistance value of two pairs of electrodes by gathering partial pressure value;
According to the switching by switch, two electrode pairs are connected with control system with signals collecting with reference resistance, AC signal source respectively, by to rectification, the analog to digital conversion of voltage division signal, calculate the resistance value of two electrode pairs;
303, control the pumping device extracting liquid;
Transmit control signal, drive drawing liquid pump work;
304, judgement more near the resistance value of the first electrode pair of inlet in default the first impedance threshold scope?
After extracting liquid, the direction of liquid feed liquor is considered, first detect be positioned near the first electrode pair inlet resistance value whether in the scope of the general medical detection solution resistance value that presets, in this way in this scope, proof is not to be extracted into liquid and to be extracted into correct liquid, enters next step processing; As no, need to return step 303, continue drawing liquid;
305, do you judge that the resistance value of the second electrode pair is in default the first impedance threshold scope?
After the first electrode pair is drawn into correct testing liquid, needs further detect the resistance value of the second electrode pair on assigned address, whether in the scope of the general medical detection solution resistance value that presets, in this way in this scope, proof is not to be extracted into liquid and to be extracted into correct liquid, enters next step processing; As no, need to return step 303, continue drawing liquid;
306, stop drawing liquid and carry out fluid analysis and process;
After satisfying as above two conditions, Liquid extracting is normal, and the extraction amount reached requirement, next just can stop drawing liquid, carries out specific liquid correlation analysis and processing.Easily be subject to the impact of external circuitry due to electrochemical reaction, need after drawing liquid is completed switch 14 and 15 is disconnected, avoid the circuit of signal acquisition control system 18 to affect electrochemical reaction.Can begin chemical reaction this moment.
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.As shown in Figure 4, another embodiment schematic diagram of the method for a kind of liquid of the present invention road position probing specifically describes as follows:
401, place respectively two pairs of electrodes at two assigned addresses in influidic pipe road;
The difference of selecting according to different fluid analysis demands and liquid capacity is selected conveniently to carry out two positions that the detection position is detected in the influidic pipe road, and the modes of emplacement of electrode is various, also can be by making electrode on the PCB printed circuit board (PCB) and enclosing in pipeline;
402, by two switchings of switch in scheduled duration, two pairs of electrodes are connected with the AC impedance testing circuit respectively, calculate respectively the resistance value of two pairs of electrodes by gathering partial pressure value;
According to the switching by switch, two electrode pairs are connected with control system with signals collecting with reference resistance, AC signal source respectively, by to rectification, the analog to digital conversion of voltage division signal, calculate the resistance value of two electrode pairs;
403, control the pumping device extracting liquid;
Transmit control signal, drive drawing liquid pump work;
404, judgement more near the resistance value of the first electrode pair of inlet in default the first impedance threshold scope?
After extracting liquid, the direction of liquid feed liquor is considered, first detect be positioned near the first electrode pair inlet resistance value whether in the scope of the general medical detection solution resistance value that presets, in this way in this scope, proof is not to be extracted into liquid and to be extracted into correct liquid, enters next step 407 processing; As no, need to enter step 405;
405, do you judge that the resistance value of the first electrode pair is in default the second impedance threshold scope?
in general, if the bubble coated electrode is arranged to upper, when perhaps electrode pair does not have contact liq, the AC impedance of electrode pair changes more than 50K, according to the real system test case, the second impedance threshold scope of setting judges, if in this scope, judgement has the bubble coated electrode to upper, perhaps electrode pair does not have contact liq, return to step 403 and continue extracting liquid (bubble can be taken away), certainly can also be preferred, if the resistance value of the first electrode pair all detected in scheduled duration in default the second impedance threshold scope, enter that step 406 is reported to the police and abnormal prompt, if not in this scope, might be that the liquid that extracts not is default liquid, enter step 406,
406, warning and abnormal prompt;
The abnormal conditions that occur are carried out demonstration, storage, printing of the warning of acousto-optic and/or information etc.;
407, do you judge that the resistance value of the second electrode pair is in default the first impedance threshold scope?
After the first electrode pair is drawn into correct testing liquid, needs further detect the resistance value of the second electrode pair on assigned address, whether in the scope of the general medical detection solution resistance value that presets, in this way in this scope, proof is not to be extracted into liquid and to be extracted into correct liquid, enters next step 409 processing; As no, need to enter step 408;
408, do you judge that the resistance value of the second electrode pair is in default the second impedance threshold scope?
In general, if the bubble coated electrode is arranged to upper, when perhaps electrode pair does not have contact liq, the AC impedance of electrode pair changes more than 50K, and according to the real system test case, the second impedance threshold scope of setting judges, if in this scope, judgement has the bubble coated electrode to upper, and perhaps electrode pair does not have contact liq, returns to step 403 and continues extracting liquid (bubble can be taken away); If not in this scope, might be that the liquid that extracts not is default liquid, enter step 406; And can comprise step 408 in the technical scheme whether step 405 exists.
409, stop drawing liquid and carry out fluid analysis and process;
After satisfying as above two conditions, Liquid extracting is normal, and the extraction amount reached requirement, next just can stop drawing liquid, carries out specific liquid correlation analysis and processing.Easily be subject to the impact of external circuitry due to electrochemical reaction, need after drawing liquid is completed switch 14 and 15 is disconnected, avoid the circuit of signal acquisition control system 18 to affect electrochemical reaction.Can begin chemical reaction this moment.
The above is only preferred embodiment of the present invention, not in order to limiting the present invention, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention
Claims (10)
1. the device of a liquid road position probing, is characterized in that, comprising:
The influidic pipe road;
Pumping device is connected with described influidic pipe road, is used for extracting the solution of described influidic pipe road inlet;
The first electrode pair and the second electrode pair that are used for liquid road position probing, be positioned over two assigned addresses in described influidic pipe road, the electrode diameter of described each electrode pair is 0.1mm～1mm, between two electrodes of each electrode pair, distance range is 0.5mm～2cm, and electrode surface is gold-plated and scribble the water wettability chemicals;
First passage change-over switch and second channel change-over switch are connected with described two electrode pairs respectively, are used for switching the resistance value that gathers described the second electrode pair and the first electrode pair;
Reference resistance is connected with the second channel change-over switch with described first passage change-over switch, is used to subsequent calculations electrode pair resistance value that partial pressure value is provided;
The AC signal source is connected with described reference resistance, be used to the impedance detection circuit of described electrode pair provide one ac-excited;
Signal acquisition control system is connected with described first passage change-over switch, second channel change-over switch and described reference resistance, is used for completing conversion, collection and subsequent treatment and the control of voltage signal.
2. the device of a kind of liquid according to claim 1 road position probing, is characterized in that, described signal acquisition control system comprises,
The extracting liquid control module is connected with described pumping device, is used for controlling the pumping device extracting liquid;
The change-over switch control module is connected with the second channel change-over switch with described first passage change-over switch, is used for controlling described first passage change-over switch and second channel change-over switch and switches in the scheduled duration interval;
The precision rectifying unit is connected with the second channel change-over switch with described first passage change-over switch, and the AC signal that is used for dividing potential drop is obtained converts rear output direct current signal;
AD conversion unit is connected with described precision rectifying unit, is used for the analog DC signal is converted to digital signal;
Electrode pair impedance computation unit is connected with described AD conversion unit, is used for calculating according to the digital signal after conversion the resistance value of described the second electrode pair and the first electrode pair;
The first electrode pair impedance threshold judging unit is connected with the extracting liquid control module with described electrode pair impedance computation unit, is used for judging whether the resistance value of described the first electrode pair surpasses the threshold value that presets;
The second electrode pair impedance threshold judging unit, be connected with the extracting liquid control module with described electrode pair impedance computation unit, the first electrode pair impedance threshold judging unit, be used for judging whether the resistance value of described the second electrode pair surpasses the threshold value that presets.
3. the device of a kind of liquid according to claim 2 road position probing, is characterized in that, described signal acquisition control system also comprises,
Abnormal prompt and alarm unit, be connected with the second electrode pair impedance threshold judging unit with described the first electrode pair impedance threshold judging unit, be used for carrying out abnormal information output and warning when described the first electrode pair and the second electrode pair resistance value surpass the threshold value that presets.
4. the device of a kind of liquid according to claim 1 road position probing, is characterized in that, described the first electrode pair and the second electrode pair are produced on the PCB printed circuit board (PCB), and enclosed in described influidic pipe road.
5. the method for a liquid road position probing, is characterized in that, comprises the steps:
The step I, two assigned addresses in the influidic pipe road are placed respectively two pairs of electrodes, the electrode diameter of described each electrode pair is 0.1mm～1mm, and between two electrodes of each electrode pair, distance range is 0.5mm～2cm, and electrode surface is gold-plated and scribble the water wettability chemicals;
The step II is connected two pairs of electrodes respectively by two switchings of switch in scheduled duration with the AC impedance testing circuit, calculate respectively the resistance value of two pairs of electrodes by gathering partial pressure value;
The step III is controlled the pumping device extracting liquid;
Step IV, judgement more near the resistance value of the first electrode pair of inlet in default the first impedance threshold scope? in this way, enter the step V, as no, return to the step III;
Does the step V judge that the resistance value of the second electrode pair is in default the first impedance threshold scope? in this way, enter the step VI, as no, return to the step III;
The step VI stops drawing liquid and carries out fluid analysis and process.
6. the method for a kind of liquid according to claim 5 road position probing, it is characterized in that, described step IV, when judgement more when the resistance value of the first electrode pair of inlet is in default the first impedance threshold scope, also comprise, do you judge that the resistance value of the first electrode pair is in default the second impedance threshold scope? in this way, return to the step III.
7. the method for a kind of liquid according to claim 6 road position probing, is characterized in that, as the resistance value that judges the first electrode pair is reported to the police and abnormal prompt not in default the second impedance threshold scope.
8. the method for according to claim 5 or 6 described a kind of liquid road position probing, it is characterized in that, described step V, when the resistance value of judgement the second electrode pair is not being preset in the first impedance threshold scope, also comprise, do you judge that the resistance value of the second electrode pair is in default the second impedance threshold scope? in this way, return to the step III.
9. the method for a kind of liquid according to claim 8 road position probing, is characterized in that, as the resistance value that judges the second electrode pair is reported to the police and abnormal prompt not in default the second impedance threshold scope.
10. a blood gas analyzer, is characterized in that, comprises method and the device of liquid as described in claim 1 to 9 road position probing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310071152.6A CN103115656B (en) | 2013-03-06 | 2013-03-06 | Method and device for detecting position of fluid channel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310071152.6A CN103115656B (en) | 2013-03-06 | 2013-03-06 | Method and device for detecting position of fluid channel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103115656A true CN103115656A (en) | 2013-05-22 |
| CN103115656B CN103115656B (en) | 2015-01-21 |
Family
ID=48414076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310071152.6A Active CN103115656B (en) | 2013-03-06 | 2013-03-06 | Method and device for detecting position of fluid channel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103115656B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884028A (en) * | 2016-09-30 | 2018-04-06 | 佛山市顺德区美的电热电器制造有限公司 | For cooking apparatus anti-overflow detection means and there is its cooking apparatus |
| CN109443486A (en) * | 2018-10-25 | 2019-03-08 | 中国船舶重工集团公司第七〇九研究所 | A kind of threshold adaptive electric contact level testing methods and detection device |
| CN113252146A (en) * | 2021-05-13 | 2021-08-13 | 宁波水表(集团)股份有限公司 | Intelligent flow velocity simulation system |
| CN113984138A (en) * | 2021-09-10 | 2022-01-28 | 中国航空工业集团公司西安航空计算技术研究所 | Aviation fuel oil measurement system based on FFT spectral analysis |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127628A (en) * | 1995-01-28 | 1996-07-31 | 中国医学科学院基础医学研究所 | Organism body fluid distribution measuring analyzer |
| CN2415346Y (en) * | 2000-03-29 | 2001-01-17 | 华南理工大学 | Single chip microcomputer controlled earth dam moisture permeating line scan tester for reserver |
| CN1460842A (en) * | 2002-04-02 | 2003-12-10 | 索尼公司 | Residual liquid volume display and residual liqud volume display method |
| EP1384586A1 (en) * | 2002-07-24 | 2004-01-28 | Sony Corporation | Liquid detecting apparatus, liquid-amount detecting apparatus, liquid detecting method, and liquid-amount detecting method |
| CN2715268Y (en) * | 2004-05-18 | 2005-08-03 | 王兰泽 | Sewage conduit monitor |
| US20060096368A1 (en) * | 2002-11-15 | 2006-05-11 | Jacques Morineau | Method of measuring the height of a liquid using a high-frequency line probe |
| CN101498598A (en) * | 2009-03-10 | 2009-08-05 | 珠海市德莱环保科技有限公司 | Wireless security monitoring system for large dam |
| CN101614573A (en) * | 2009-04-28 | 2009-12-30 | 北京宝力马传感技术有限公司 | Soaking monitoring method, device and equipment |
| CN102200463A (en) * | 2011-03-23 | 2011-09-28 | 泰州市瑞芝电子有限公司 | Liquid level linear measurement method based on impedance measurement |
-
2013
- 2013-03-06 CN CN201310071152.6A patent/CN103115656B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1127628A (en) * | 1995-01-28 | 1996-07-31 | 中国医学科学院基础医学研究所 | Organism body fluid distribution measuring analyzer |
| CN2415346Y (en) * | 2000-03-29 | 2001-01-17 | 华南理工大学 | Single chip microcomputer controlled earth dam moisture permeating line scan tester for reserver |
| CN1460842A (en) * | 2002-04-02 | 2003-12-10 | 索尼公司 | Residual liquid volume display and residual liqud volume display method |
| EP1384586A1 (en) * | 2002-07-24 | 2004-01-28 | Sony Corporation | Liquid detecting apparatus, liquid-amount detecting apparatus, liquid detecting method, and liquid-amount detecting method |
| US20060096368A1 (en) * | 2002-11-15 | 2006-05-11 | Jacques Morineau | Method of measuring the height of a liquid using a high-frequency line probe |
| CN2715268Y (en) * | 2004-05-18 | 2005-08-03 | 王兰泽 | Sewage conduit monitor |
| CN101498598A (en) * | 2009-03-10 | 2009-08-05 | 珠海市德莱环保科技有限公司 | Wireless security monitoring system for large dam |
| CN101614573A (en) * | 2009-04-28 | 2009-12-30 | 北京宝力马传感技术有限公司 | Soaking monitoring method, device and equipment |
| CN102200463A (en) * | 2011-03-23 | 2011-09-28 | 泰州市瑞芝电子有限公司 | Liquid level linear measurement method based on impedance measurement |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107884028A (en) * | 2016-09-30 | 2018-04-06 | 佛山市顺德区美的电热电器制造有限公司 | For cooking apparatus anti-overflow detection means and there is its cooking apparatus |
| CN107884028B (en) * | 2016-09-30 | 2021-01-19 | 佛山市顺德区美的电热电器制造有限公司 | A cooking utensil that is used for cooking utensil's anti-overflow detection device and has it |
| CN109443486A (en) * | 2018-10-25 | 2019-03-08 | 中国船舶重工集团公司第七〇九研究所 | A kind of threshold adaptive electric contact level testing methods and detection device |
| CN113252146A (en) * | 2021-05-13 | 2021-08-13 | 宁波水表(集团)股份有限公司 | Intelligent flow velocity simulation system |
| CN113984138A (en) * | 2021-09-10 | 2022-01-28 | 中国航空工业集团公司西安航空计算技术研究所 | Aviation fuel oil measurement system based on FFT spectral analysis |
| CN113984138B (en) * | 2021-09-10 | 2023-09-05 | 中国航空工业集团公司西安航空计算技术研究所 | Aviation fuel measurement system based on FFT (fast Fourier transform) spectrum analysis |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103115656B (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206362736U (en) | Gas monitoring system | |
| CN103115656B (en) | Method and device for detecting position of fluid channel | |
| CN102967419B (en) | Linear array type ultrasonic leak detection device and method | |
| CN203365316U (en) | Multi-parameter water quality analyzer | |
| CN105758904A (en) | Multi-parameter water quality monitoring system and method and their application | |
| CN102374927A (en) | Leakage detection device and detection method using same | |
| CN104535735B (en) | Water quality remote on-line monitoring method | |
| CN104237331A (en) | Oil trace moisture on-line monitoring sensor | |
| CN202018424U (en) | Food-safety detecting instrument | |
| CN105158310B (en) | A kind of micro-fluidic detection chip and its application based on micro-porous electrode | |
| CN102798649A (en) | Liquid leakage detector | |
| CN106289448A (en) | A kind of Level Detection prior-warning device | |
| CN105261158A (en) | High-precision natural gas leakage detector based on Internet of things | |
| CN212540218U (en) | Multi-parameter oil product characteristic sensor | |
| CN205720196U (en) | Multi-parameter water quality detecting system | |
| CN207557754U (en) | A kind of detection device of electronic type vacuum pressure controller | |
| CN103267792B (en) | Intelligent chemical analysis system for distinguishing detection of weak electrolyte sample and method therefor | |
| CN208282867U (en) | A kind of water quality detection system | |
| CN207946138U (en) | A kind of external-placed type supersonic liquid level measuring device based on ARM | |
| CN110988295A (en) | Floating type sewage detection system and method based on NB _ IoT | |
| CN206353153U (en) | A kind of water quality on-line detecting system | |
| CN111337858A (en) | Capacitance detection device and system | |
| CN206002169U (en) | A kind of electric coupling measures the detection means of liquid capacity | |
| CN205449816U (en) | A intellectual detection system equipment that is used for acquireing in real time industrial waste water acid -base index | |
| CN219641042U (en) | Paddy field water level monitoring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |