CN106092971A - A kind of test tube class detection device - Google Patents
A kind of test tube class detection device Download PDFInfo
- Publication number
- CN106092971A CN106092971A CN201610644064.4A CN201610644064A CN106092971A CN 106092971 A CN106092971 A CN 106092971A CN 201610644064 A CN201610644064 A CN 201610644064A CN 106092971 A CN106092971 A CN 106092971A
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- China
- Prior art keywords
- light
- test tube
- transmitting set
- optical receiver
- optical transmitting
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- 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.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/47—Scattering, i.e. diffuse reflection
- G01N21/4738—Diffuse reflection, e.g. also for testing fluids, fibrous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
- G01N2021/0106—General arrangement of respective parts
- G01N2021/0112—Apparatus in one mechanical, optical or electronic block
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Geophysics And Detection Of Objects (AREA)
Abstract
The invention discloses a kind of test tube class detection device, it includes light tight cavity；Described light tight inside cavity one end is provided with optical transmitting set and optical receiver；Described optical transmitting set be located at light tight cavity in and the light emission channel connection that is in communication with the outside；Described optical receiver be located at light tight cavity in and the light-receiving channel connection that is in communication with the outside；Described light emission passage forms angle α away from extended line and the light-receiving passage of one end of optical transmitting set away from the extended line of one end of optical receiver, and described angle α is more than 0 ° and less than 180 °；Described optical transmitting set and optical receiver are all connected with driver.Solve correlation of the prior art, reflective, extinction cartridge type test tube detecting device cannot detect by test tube good to light transmission, it is impossible to gets rid of flase drop when not having test tube, it is impossible to the problem getting rid of the interference of ambient light.
Description
Technical field
The invention belongs to medical treatment detection apparatus technical field, be specifically related to a kind of test tube class detection device.
Background technology
Currently, in the sample analysis in each field, test tube the most all can be used to load the sample needing to be analyzed (as changed
Learn reagent, blood etc.), and the test tube loading sample is placed in the detector of configuration, complete the analysis to sample characteristics of for example
Detection, in actual applications, is typically provided with test tube detecting device, ensures that the test tube being mounted with sample can in detector
Quickly and reliably it is detected, various with topic with avoid sample flase drop to bring.
In the prior art, it is typically infrared photoelectric sensor as test tube detecting device, utilizes test tube self to stop
Or reflection light detects in this analytical equipment instrument whether have test tube.Such as, there is a kind of correlation test tube detecting device, this device bag
Including optical transmitting set and optical receiver, wherein, this optical transmitting set and optical receiver are installed on the position of horizontal correlation, when test tube is from light
Emitter and light by receive device ask pass through time, it will affect the transmission of optical signal, thus whether can receive according to optical receiver
The optical signal of optical transmitting set injection judges that optical transmitting set and light are by receiving the most whether device has test tube to pass through.The problem existed
It is when test tube is transparent sky or during equipped with transparency liquid, has the biggest missing inspection situation and occur；Simultaneously by ambient light
Impact very big, produce flase drop and missing inspection.
Also have a kind of reflective test tube detecting device, this device includes photoelectric sensor and reflex reflector, when have test tube from
Photoelectric sensor and reflex reflector ask through out-of-date, owing to test tube itself produces unrestrained transmitting, then having part optical signals cannot be anti-
It is emitted back towards photoelectric sensor, so that the optical signal of reflected light electric transducer is more weak than the intensity of the optical signal of injection, and works as photoelectricity
Sensor and asking of reflex reflector do not have test tube through out-of-date, and the whole optical signals injected can be reflected back photoelectric sensing by reflex reflector
Device, then this photoelectric sensor is basically unchanged by the intensity of the optical signal received with the optical signal of injection.Thus, photoelectric sensor is i.e.
Can judge between photoelectric sensor and reflex reflector according to by the Strength Changes of the optical signal received and the optical signal launched
Whether there is test tube.Although it is transparent sky or during equipped with transparency liquid that this method solves part test tube, have missing inspection feelings
Condition, but cannot solve to be affected generation flase drop and the problem of missing inspection by ambient light simultaneously.
Also having a kind of test tube detecting device, this device may include that photoelectric sensor, and this photoelectric sensor includes that again light is sent out
Emitter and optical receiver, with the extinction magazine that photoelectric sensor is positioned at horizontal correlation position, the driving mould being connected with optical transmitting set
Block, the amplification Shaping Module being connected with optical receiver, the comparator being connected with this amplification Shaping Module, and with this comparator phase
Processor even.Although it is transparent sky or during equipped with transparency liquid that this method solves part test tube, have missing inspection feelings
Condition；But also cannot solve to be affected generation flase drop and the problem of missing inspection by ambient light simultaneously.
When the light transmission of sample and the test tube carrying this sample is all fine, add the impact of ambient light, above-mentioned
Existing these three test tube detecting device can be difficult to judge whether to detect this test tube, it is easy to causes flase drop and missing inspection, greatly
Have impact on greatly the accuracy to test tube detection.
Summary of the invention
It is contemplated that overcome the deficiencies in the prior art, it is provided that a kind of test tube class detection device.
In order to achieve the above object, the technical scheme that the present invention provides is:
Described test tube class detection device includes light tight cavity；Described light tight inside cavity one end is provided with optical transmitting set and (is driving
Launch optical signal under the control of dynamic signal) and optical receiver (optical signal received is changed into the corresponding signal of telecommunication defeated
Go out)；Described optical transmitting set be located at light tight cavity in and the light emission channel connection that is in communication with the outside；Described optical receiver with
It is located at the light-receiving channel connection that light tight cavity is interior and is in communication with the outside；Described light emission passage is away from one end of optical transmitting set
Extended line and light-receiving passage form angle α away from the extended line of one end of optical receiver, described angle α is more than 0 ° and is less than
180°；Described optical transmitting set and optical receiver are all connected with driver.
Wherein, described optical transmitting set is light emitting diode；Described optical receiver is light-sensitive element.Described light-sensitive element is light
Electricity audion (can also substitute with other light-sensitive elements, as long as can sensing the optical signal injected and being changed into correspondence
The signal of telecommunication).Described driver is provided with clock pulse generator (produce pulse voltage, make the light that optical transmitting set sends
Distinguish with the frequency range of ambient light, reduce ambient light interference), anti saturation circuit, amplifying circuit, shaping circuit, comparator and
Descriminator.Described clock pulse generator is connected with optical transmitting set；Described optical receiver is connected with anti saturation circuit, anti-saturation electricity
Road is connected with amplifying circuit, and amplifying circuit is connected with shaping circuit, and shaping circuit is connected with comparator, and comparator is with descriminator even
Connect.Described descriminator also electrically connects with processor.The processor of described detection device also electrically connects with result display.
The invention will be further described below:
Present invention seek to address that correlation of the prior art, reflective, extinction cartridge type test tube detecting device cannot be to printing opacity
Property good test tube detect, it is impossible to get rid of flase drop when not having a test tube, it is impossible to the problem getting rid of the interference of ambient light.
If light tight cavity leading portion has test tube, when driver drives optical transmitting set is launched after optical signal, optical signal can be along
Long and narrow light emission passage injects to occur on test tube wall diffuse-reflectance in front end, even if this test tube is built with black sample or examination
Pipe is that certain dark color the most necessarily has certain optical signal and reflected, and reflection light reaches light-receiving by after light-receiving passage
Device, is changed into the signal of telecommunication of correspondence by this optical receiver.Afterwards, in order to make in subsequent analysis, by amplifying circuit to this
The signal of telecommunication is amplified, and shaping circuit carries out Shape correction to the signal of telecommunication after amplifying, and by comparator to the signal after shaping
Compare, thus faint optical signal is turned the signal of telecommunication obtained and filters, make processor clearly identify optical receiver and connect
The test tube received is unrestrained is transmitted back to optical signal, and judges whether test tube exists accordingly.During detection, no matter test tube and therein
The light transmission of sample is good and bad, all can have fraction optical signal that diffuse-reflectance, and reflected light receptor occur on test tube wall,
Major part optical signal can be filtered out by passage orientation, thus eliminates interference signal, and it is bigger that final processor only can obtain amplitude
The signal of telecommunication (optical signal that this signal of telecommunication is reflected back corresponding to test tube).And if light tight cavity front end does not has test tube, then light is sent out
The light almost all that emitter is launched cannot return, and the faintest optical signal reflected light receptor, therefore comparator will have
Effect filters the small-signal being reflected back, and makes this signal of telecommunication cannot arrive processor, and the most now processor will not receive any
The signal of telecommunication.Therefore, processor can be according to whether receive the signal of telecommunication to judge whether light tight cavity front end has exactly
Test tube, thus avoid the generation of flase drop, missing inspection.
It addition, in the present invention, carry out light emission and the directivity of reception and selectivity by light tight cavity, make ambient light
Unaffected to the detection of test tube with the dislike light difference of test tube, therefore, processor can come according to whether receive the signal of telecommunication
Effectively judge whether photoelectric sensor and interior tube leading portion have test tube.In order to improve accuracy of detection further, can adjust
The size of whole angle α is to realize the Sensitive Detection of different detecting distance.
In order to improve the environment resistant light interference performance of test tube class of the present invention detection device further, the clock moon forever rushes and sends out
The signal that drives of raw device output can be in the way of using coding, and fixing coding signal is launched in circulation.
Accompanying drawing explanation
Fig. 1 is present configuration schematic diagram.
In figure: 1, light tight cavity；2, optical transmitting set；3, optical receiver；4, light emission passage；5, light-receiving passage；6、
Driver；7, clock pulse generator；8, anti saturation circuit；9, amplifying circuit；10, shaping circuit；11, comparator；12, frequency discrimination
Device；13, test tube.
Detailed description of the invention
Seeing Fig. 1, described test tube class detection device includes light tight cavity 1；The internal one end of described light tight cavity 1 is provided with
Optical transmitting set 2 and optical receiver 3；Described optical transmitting set 2 be located at light tight cavity 1 in and the light emission passage that is in communication with the outside
4 connections；Described optical receiver 3 connects with being located at light tight cavity 1 light-receiving passage 5 that is interior and that be in communication with the outside；Described light is sent out
Penetrate the passage 4 extended line away from one end of optical transmitting set 2 linear away from the prolongation of one end of optical receiver 3 with light-receiving passage 5
Becoming angle α, described angle α is more than 0 ° and less than 180 °；Described optical transmitting set 2 and optical receiver 3 are all connected with driver 6.
Wherein, described optical transmitting set 2 is light emitting diode；Described optical receiver 3 is light-sensitive element.Described light-sensitive element is
Phototriode.Described driver 6 is provided with clock pulse generator 7, anti saturation circuit 8, amplifying circuit 9, shaping circuit 10,
Comparator 11 and descriminator 12.Described clock pulse generator 7 is connected with optical transmitting set 2；Described optical receiver 3 and anti-saturation electricity
Road 8 connects, and anti saturation circuit 8 is connected with amplifying circuit 9, and amplifying circuit 9 is connected with shaping circuit 10, shaping circuit 10 with compare
Device 11 connects, and comparator 11 is connected with descriminator 12.Described descriminator 12 also electrically connects with processor.The place of described detection device
Reason device electrically connects with result display.
Whether above-mentioned test tube class detection device has test tube 13 to pass through before can be used for detecting light tight cavity 1.
Claims (6)
1. a test tube class detection device, it is characterised in that described detection device includes light tight cavity (1)；Described light tight
The internal one end of cavity (1) is provided with optical transmitting set (2) and optical receiver (3)；Described optical transmitting set (2) be located at light tight cavity
(1) light emission passage (4) connection that is interior and that be in communication with the outside；Described optical receiver (3) be located in light tight cavity (1) and with
Light-receiving passage (5) connection of extraneous connection；Described light emission passage (4) away from one end of optical transmitting set (2) extended line with
Light-receiving passage (5) forms angle α away from the extended line of one end of optical receiver (3), and described angle α is more than 0 ° and is less than
180°；Described optical transmitting set (2) and optical receiver (3) are all connected with driver (6).
Detect device the most as claimed in claim 1, it is characterised in that described optical transmitting set (2) is light emitting diode；Described light
Receptor (3) is light-sensitive element.
Detect device the most as claimed in claim 2, it is characterised in that described light-sensitive element is phototriode.
Detect device the most as claimed in claim 1, it is characterised in that described driver is provided with clock pulse generator in (6)
(7), anti saturation circuit (8), amplifying circuit (9), shaping circuit (10), comparator (11) and descriminator (12).
Detect device the most as claimed in claim 4, it is characterised in that described clock pulse generator (7) and optical transmitting set (2)
Connect；Described optical receiver (3) is connected with anti saturation circuit (8), and anti saturation circuit (8) is connected with amplifying circuit (9), amplifies electricity
Road (9) is connected with shaping circuit (10), and shaping circuit (10) is connected with comparator (11), and comparator (11) is with descriminator (12) even
Connect；Described descriminator (12) also electrically connects with processor.
Detect device the most as claimed in claim 5, it is characterised in that the processor of described detection device and result display electricity
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644064.4A CN106092971A (en) | 2016-08-09 | 2016-08-09 | A kind of test tube class detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610644064.4A CN106092971A (en) | 2016-08-09 | 2016-08-09 | A kind of test tube class detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106092971A true CN106092971A (en) | 2016-11-09 |
Family
ID=57454888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610644064.4A Pending CN106092971A (en) | 2016-08-09 | 2016-08-09 | A kind of test tube class detection device |
Country Status (1)
| Country | Link |
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| CN (1) | CN106092971A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014898A (en) * | 2020-09-07 | 2020-12-01 | 沈阳中光电子有限公司 | Sensor for detecting whether liquid exists in thin tube |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043038A (en) * | 2009-10-15 | 2011-05-04 | 深圳迈瑞生物医疗电子股份有限公司 | Blood analysis meter test tube detection device and method |
| CN202057506U (en) * | 2010-12-16 | 2011-11-30 | 胡鹰 | Special test tube detecting device for clinical medicine |
| CN203350900U (en) * | 2013-07-11 | 2013-12-18 | 爱威科技股份有限公司 | Test tube identification system |
| CN203630371U (en) * | 2013-12-25 | 2014-06-04 | 爱威科技股份有限公司 | Test tube detection device |
| CN204359947U (en) * | 2015-01-15 | 2015-05-27 | 浏阳市宏远精工机械科技有限公司 | A kind of heparin tube voltage regulator tube pick-up unit |
| CN205879787U (en) * | 2016-08-09 | 2017-01-11 | 湖南乾康科技有限公司 | Test tube class detection device |
-
2016
- 2016-08-09 CN CN201610644064.4A patent/CN106092971A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102043038A (en) * | 2009-10-15 | 2011-05-04 | 深圳迈瑞生物医疗电子股份有限公司 | Blood analysis meter test tube detection device and method |
| CN202057506U (en) * | 2010-12-16 | 2011-11-30 | 胡鹰 | Special test tube detecting device for clinical medicine |
| CN203350900U (en) * | 2013-07-11 | 2013-12-18 | 爱威科技股份有限公司 | Test tube identification system |
| CN203630371U (en) * | 2013-12-25 | 2014-06-04 | 爱威科技股份有限公司 | Test tube detection device |
| CN204359947U (en) * | 2015-01-15 | 2015-05-27 | 浏阳市宏远精工机械科技有限公司 | A kind of heparin tube voltage regulator tube pick-up unit |
| CN205879787U (en) * | 2016-08-09 | 2017-01-11 | 湖南乾康科技有限公司 | Test tube class detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112014898A (en) * | 2020-09-07 | 2020-12-01 | 沈阳中光电子有限公司 | Sensor for detecting whether liquid exists in thin tube |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161109 |
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| RJ01 | Rejection of invention patent application after publication |