CN102478417A - Liquid level detection device for sample addition system - Google Patents
Liquid level detection device for sample addition system Download PDFInfo
- Publication number
- CN102478417A CN102478417A CN2010105617160A CN201010561716A CN102478417A CN 102478417 A CN102478417 A CN 102478417A CN 2010105617160 A CN2010105617160 A CN 2010105617160A CN 201010561716 A CN201010561716 A CN 201010561716A CN 102478417 A CN102478417 A CN 102478417A
- Authority
- CN
- China
- Prior art keywords
- sensor
- liquid level
- test tube
- sample adding
- adding system
- 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.)
- Pending
Links
Images
Abstract
The invention discloses a liquid level detection device for a sample addition system, which comprises a sensor module, a data processing module and a display module which are connected sequentially, wherein the sensor module is an ultrasonic sensor installed above a test tube rack, and is corresponding to the opening of a test tube in the test tube rack; the data processing module is an MCU (microprogrammed control unit); and the display module is a liquid crystal display device. The ultrasonic sensor comprises a shell and a detachable ultrasonic transmitting mouth positioned below the shell. The invention implements precise monitoring of the liquid level by using the simple device, and has the characteristics of small size and high precision; and since the sensor does not contact the liquid level, the invention ensures that the sensor to be not corroded, and ensures that the detected medium can not have cross contamination, and thus, the sensor in the invention has wider applicability and longer service life as compared with other sensors.
Description
Technical field
The present invention relates to a kind of liquid level sensor, relate in particular to a kind of liquid level sensor that is used for sample adding system.
Background technology
The laboratory begins to utilize more and more automation equipment to accomplish the task of test, check at present; For example: the suction of check analysis reagent, sample moves or the like; And employed sensor should be able to carry out work accurately in these work; And the result with trackability is provided, also must have very high detection speed simultaneously.Give an example, on a liquid medium inspection station, a very important step is exactly the liquid medium of using to very little glass test tube can check analysis, for example pours into the blood that needs analysis.After being circulated into a spot of test samples in the small test tube, before check analysis begins, need the liquid level of liquid medium in the small test tube be detected.The opening of the microbe culture vessel that these are small is very little, and the bore that some microorganism is cultivated bottle has only 3mm, but still requires sensor can in the shortest time, accurately detect the capacity of liquid medium in the bottle outlet.The condenser type detection technique of current use does not also reach desirable accuracy of detection, and is though the independent one by one electro-optical pickoff that is provided with has satisfied the requirement of accuracy of detection, expensive.
Summary of the invention
To the problem of above-mentioned existence, the purpose of this invention is to provide a kind ofly based on ultrasonic sensor, be fit to the level detection of small containers and the sample adding system liquid level sensor of precision measurement, have the advantages that volume is little, precision is high, the life-span is long, cost is low.
The objective of the invention is to realize through following technical proposals:
A kind of sample adding system liquid level sensor; Wherein, Comprise successively the sensor assembly, data processing module and the display module that connect, said sensor assembly is one to be installed in the ultrasonic sensor of test tube rack top, corresponding to the test tube mouth of pipe in the said test tube rack; Said data processing module is a MCU, and said display module is a LCD.
Above-mentioned sample adding system liquid level sensor, wherein, said ultrasonic sensor comprises shell and the detachable ultrasonic emitting mouth that is positioned at its below.
Above-mentioned sample adding system liquid level sensor, wherein, said shell is a rectangle.
Above-mentioned sample adding system liquid level sensor, wherein, the wide 9mm of said shell.
Above-mentioned sample adding system liquid level sensor, wherein, the accuracy of detection of said ultrasonic sensor is 0.1mm.
Above-mentioned sample adding system liquid level sensor, wherein, said ultrasonic sensor model is UNCK09.
Compared with present technology; The present invention utilizes simple device to realize the accurate monitoring of liquid level; Have the advantages that volume is little, precision is high, again because its sensor does not contact with liquid level, so both guaranteed that sensor was not corroded; Guaranteed that also measured medium cross pollution can not occur, had applicability and longer life-span widely than other sensors.Compare with electro-optical pickoff; The ultrasonic sensor that the present invention adopts does not produce light; But utilize sound wave to detect, so it can detect medium of different nature reliably, and also irrelevant with the transparency and the color of measured medium; No matter the viscosity of measured medium height how, can not exert an influence to testing result.
Description of drawings
Fig. 1 is the structural representation of sample adding system liquid level sensor of the present invention.
Embodiment
Below in conjunction with schematic diagram and concrete operations embodiment the present invention is described further.
As shown in Figure 1; Sample adding system liquid level sensor of the present invention comprises sensor assembly 1, data processing module 2 and the display module 3 that connects successively; Sensor assembly 1 is one to be installed in the ultrasonic sensor of test tube rack top; Corresponding to 5 mouths of pipe of the test tube in the test tube rack 4, data processing module 2 is a MCU, and display module is a LCD.When device starts operation; Sensor assembly 1 sends ultrasound wave in test tube 5, run into liquid level after; Because of the liquid level reflection produces electric signal; And because of ultrasonic sensor 1 and liquid level distance different produce different electric signal, input data processing module 2 carries out being transformed into after the data processing corresponding liquid level data and outputs on the display module LCD 3 and show.
Ultrasonic sensor 1 adopts 09 series sensor of group of Switzerland fort alliance, and such as the UNCK09 that adopts new IO-Link interface, the UNCK09 ultrasonic sensor can carry out both-way communication with controller.Ultrasonic sensor 1 comprises rectangular enclosure 11 and the detachable ultrasonic emitting mouth 12 that is positioned at its below; The ultrasonic sensor of continuous working is launched the sound wave of taper to measurand; This bundle taper sound wave can get into the bottleneck of the not enough 10mm of bore just, and the liquid level in the bottle is just detected.Ultrasonic emitting mouth 12 also can take off easily, change, and this has also made things convenient for the clean operation of sensor 1 widely.The accuracy of this sensor 1 and repeatable accuracy are all very high, can reach 0.1mm, have only 7 μ s its shortest detection time.The diameter dimension of the rectangular enclosure 1 of sensor 1 has only 9mm, and can install side by side, can be arranged in the top of whole test tube rack 4 well, also is equipped with a special-purpose bundle ripple cover in addition, can measure the diameter minimum and be the test tube perforate of 3mm.
More than specific embodiment of the present invention is described in detail, but the present invention is not restricted to the specific embodiment of above description, it is just as example.To those skilled in the art, any equivalent modifications that this sample adding system liquid level sensor is carried out with substitute also all among category of the present invention.Therefore, not breaking away from impartial conversion and the modification of having done under the spirit and scope of the present invention, all should contain within the scope of the invention.
Claims (6)
1. sample adding system liquid level sensor; It is characterized in that; Comprise successively the sensor assembly, data processing module and the display module that connect, said sensor assembly is one to be installed in the ultrasonic sensor of test tube rack top, corresponding to the test tube mouth of pipe in the said test tube rack; Said data processing module is a MCU, and said display module is a LCD.
2. sample adding system liquid level sensor according to claim 1 is characterized in that, said ultrasonic sensor comprises shell and the detachable ultrasonic emitting mouth that is positioned at its below.
3. sample adding system liquid level sensor according to claim 2 is characterized in that, said shell is a rectangle.
4. sample adding system liquid level sensor according to claim 3 is characterized in that, the wide 9mm of said shell.
5. according to claim 1 or 2 or 3 or 4 described sample adding system liquid level sensors, it is characterized in that the accuracy of detection of said ultrasonic sensor is 0.1mm.
6. sample adding system liquid level sensor according to claim 1 is characterized in that, said ultrasonic sensor model is UNCK09.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105617160A CN102478417A (en) | 2010-11-25 | 2010-11-25 | Liquid level detection device for sample addition system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105617160A CN102478417A (en) | 2010-11-25 | 2010-11-25 | Liquid level detection device for sample addition system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102478417A true CN102478417A (en) | 2012-05-30 |
Family
ID=46091129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105617160A Pending CN102478417A (en) | 2010-11-25 | 2010-11-25 | Liquid level detection device for sample addition system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478417A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107152953A (en) * | 2017-04-01 | 2017-09-12 | 深圳市东邦生物医疗技术有限公司 | A kind of detecting liquid level method and device being loaded suitable for glycosylated hemoglobin |
| CN107628581A (en) * | 2017-09-15 | 2018-01-26 | 四川伟图智能科技有限公司 | The assembling detection integrated system of view-based access control model sensing technology |
| CN109470330A (en) * | 2018-12-04 | 2019-03-15 | 佛山科学技术学院 | A kind of condenser type biological reagent liquid level sensor and control method |
| US10401209B2 (en) | 2016-06-22 | 2019-09-03 | Abbott Laboratories | Liquid level sensing apparatus and related methods |
| CN110203504A (en) * | 2019-05-06 | 2019-09-06 | 佛山市顺励成生物科技有限公司 | A kind of test tube automatically labels sample-adding all-in-one machine and labeling loading methods |
| CN112881727A (en) * | 2021-01-13 | 2021-06-01 | 湖南大学 | Automatic calibration method of liquid processor for accurate liquid adding and constant volume |
-
2010
- 2010-11-25 CN CN2010105617160A patent/CN102478417A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10401209B2 (en) | 2016-06-22 | 2019-09-03 | Abbott Laboratories | Liquid level sensing apparatus and related methods |
| US10760939B2 (en) | 2016-06-22 | 2020-09-01 | Abbott Laboratories | Liquid level sensing apparatus and related methods |
| CN107152953A (en) * | 2017-04-01 | 2017-09-12 | 深圳市东邦生物医疗技术有限公司 | A kind of detecting liquid level method and device being loaded suitable for glycosylated hemoglobin |
| CN107152953B (en) * | 2017-04-01 | 2019-12-10 | 深圳市东邦生物医疗技术有限公司 | Liquid level detection method and device suitable for sample adding of glycosylated hemoglobin |
| CN107628581A (en) * | 2017-09-15 | 2018-01-26 | 四川伟图智能科技有限公司 | The assembling detection integrated system of view-based access control model sensing technology |
| CN109470330A (en) * | 2018-12-04 | 2019-03-15 | 佛山科学技术学院 | A kind of condenser type biological reagent liquid level sensor and control method |
| CN109470330B (en) * | 2018-12-04 | 2020-07-07 | 佛山科学技术学院 | Capacitive biological reagent liquid level detection device and control method |
| CN110203504A (en) * | 2019-05-06 | 2019-09-06 | 佛山市顺励成生物科技有限公司 | A kind of test tube automatically labels sample-adding all-in-one machine and labeling loading methods |
| CN112881727A (en) * | 2021-01-13 | 2021-06-01 | 湖南大学 | Automatic calibration method of liquid processor for accurate liquid adding and constant volume |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102478417A (en) | Liquid level detection device for sample addition system | |
| CN204963951U (en) | Liquid level detection system | |
| EP2277053B1 (en) | Method and apparatus for checking the fluid in a pipet tip | |
| CN102695957B (en) | Automatic analyzing device | |
| JP6280777B2 (en) | Analysis device and liquid level detection method in analysis device | |
| US20090133511A1 (en) | Fluid handling device with ultrasound sensor and methods and systems using same | |
| US9863905B2 (en) | Method for detecting contact of a pipetting needle | |
| CN201476844U (en) | Capacitive liquid-level detecting device | |
| JPWO2007132631A1 (en) | Cleaning device and automatic analyzer | |
| CN204086149U (en) | Water soluble acid tester | |
| CN201429621Y (en) | Fully automatic sampling instrument | |
| EP2075587B1 (en) | Automatic analyzer and dispensing method thereof | |
| CN103616384A (en) | Online multi-parameter water quality detector | |
| CN203148516U (en) | Trace reagent liquid level detecting device for immunohistochemical stainer | |
| CN103675306A (en) | Automatic analysis instrument and system for microfluidic immunodetection chip | |
| CN1936518A (en) | Corelative offset type liquid-level detection method and apparatus | |
| CN203170365U (en) | Test-tube rack with detection elements and chemical analyzer | |
| JP2011158456A (en) | Device for surface tension measurement of capillary tube rising system | |
| CN202255529U (en) | Liquid volume measuring device | |
| CN203732442U (en) | Turbidity measuring instrument based on microprocessor STM32F103 | |
| CN208239252U (en) | A kind of oil product viscosity milligram ammonia measurement device | |
| CN202814969U (en) | Disposable type consumable for matched handheld type rapid detection analysis device | |
| CN201397178Y (en) | Liquid level probing and bar code scanning device | |
| CN206161372U (en) | Fluorine ion protection monitoring sampling device | |
| ES2900187T3 (en) | Warning system for potentially erroneous measurement results in an automatic analyzer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120530 |