CN108931346A - A kind of cillin bottle leakage detection apparatus and its measurement method based on dual wavelength-TDLAS technology - Google Patents
A kind of cillin bottle leakage detection apparatus and its measurement method based on dual wavelength-TDLAS technology Download PDFInfo
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- CN108931346A CN108931346A CN201810980524.XA CN201810980524A CN108931346A CN 108931346 A CN108931346 A CN 108931346A CN 201810980524 A CN201810980524 A CN 201810980524A CN 108931346 A CN108931346 A CN 108931346A
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- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
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Abstract
The invention discloses a kind of cillin bottle leakage detection apparatus and its measurement method based on dual wavelength-TDLAS technology, device includes: laser；Laser controller is electrically connected with laser；Fiber coupler is connect with laser；First collimator, the laser beam for being a for collimation laser intensity accounting；First detector, is fixed on first collimator；Second collimator and the second detector are individually fixed in cillin bottle body two sides；Capture card is electrically connected with the first detector and the second detector；Computer is electrically connected with capture card；Method is as follows: two beam laser beams being divided into laser intensity accounting all for two kinds of laser beams of a and b by fiber coupler after the two beam laser beams for using laser output wavelength different；It is received to after the laser beam collimation after beam splitting by detector using collimator, is acquired after obtaining initial beam intensity and transmitted light intensity by capture card, be transmitted to computer progress data processing after converting optical signal into electric signal, obtain the leakage coefficient of cillin bottle.
Description
Technical field
The present invention relates to a kind of cillin bottle leakage detection apparatus and its measurement method based on dual wavelength-TDLAS technology.
Background technique
Cillin bottle because be easy to transport, storage and using the advantages that being widely used in the interior acyl class of times Ta-, quinolone
The encapsulation of the antibiotic freeze drying powder injection such as class.But since cillin bottle can generate crack, crackle and rubber plug and bottle in encapsulation process
Untight problem is assembled between son, air is caused to penetrate into cillin bottle, and wherein the vapor in air, oxygen etc. are sent out with drug
Raw series of chemical makes the rotten denaturation of drug, if hunting leak not in time to cillin bottle, can cause pole to patient health
Big influence.So carrying out noiseless, quick, high-precision detection to XiLin bottle sealability is particularly important.And previous
Leak hunting method, which is not able to satisfy, detects noiseless, the high-precision of XiLin bottle sealability.Therefore, it is necessary to design one kind to be able to solve
The device of the above problem.
Summary of the invention
The present invention is to carry out to solve the above-mentioned problems, and it is an object of the present invention to provide a kind of based on dual wavelength-TDLAS technology
Cillin bottle leakage detection apparatus and its measurement method.
The present invention provides a kind of cillin bottle leakage detection apparatus based on dual wavelength-TDLAS technology, for detecting cillin bottle
Seal degree has the feature that, comprising: laser is ν for output wavelength1First laser light beam and wavelength be ν2's
Second laser light beam；Laser controller is connected with laser, for controlling the temperature and electric current of laser；Fiber coupler,
It is connect by optical fiber with laser, for first laser light beam to be divided into the first laser light beam I and swash that laser intensity accounting is a
The first laser light beam II and second laser light beam is divided into the second laser that laser intensity accounting is a that luminous intensity accounting is b
The second laser light beam II that light beam I and laser intensity accounting are b；First collimator, for collimating first laser light beam I and
Dual-laser light beam I；First detector, is fixed on first collimator, for receiving the first optical signal I of first laser light beam I
And the second optical signal I of second laser light beam I, and convert the first electric signal I for the first optical signal I and believe the second light
Number I is converted into the second electric signal I；Second collimator is fixed on the side of the body of cillin bottle, for collimating first laser light beam
II and second laser light beam II；Second detector is fixed on the other side of the body of cillin bottle, for receiving first laser light
First optical signal II of beam II and the second optical signal II of second laser light beam II, and first is converted by the first optical signal II
Electric signal II and the second electric signal II is converted by the second optical signal II；Capture card is detected with the first detector and second
Device electrical connection, for acquiring the first electric signal I, the first electric signal II, the second electric signal I and the second electric signal II；And meter
Calculation machine, is electrically connected with capture card, for the first electric signal I, the first electric signal II, the second electric signal I and the second electric signal
II progress data processing is to obtain the seal degree of cillin bottle.
The present invention also provides a kind of measurement methods of cillin bottle leakage detection apparatus based on dual wavelength-TDLAS technology, have
Such feature, includes the following steps:
Step 1, keep the temperature value of laser constant using laser controller, and alternate change current value, keep laser defeated
Wavelength is ν out1First laser light beam and wavelength be ν2Second laser light beam；
Step 2, the first laser light beam I for using fiber coupler that first laser light beam is divided into laser intensity accounting for a
The first laser light beam II for being b with laser intensity accounting, and second laser light beam is divided into laser intensity accounting and is swashed for the second of a
The second laser light beam II that light light beam I and laser intensity accounting are b；
Step 3, by first after being collimated using first collimator to first laser light beam I and second laser light beam I
Detector receives, and obtains the initial beam intensity I of first laser light beam I01-aWith the initial beam intensity I of second laser light beam I02-a, and use
Second collimator passes through cillin bottle by the second detector after collimating to first laser light beam II and second laser light beam II
It receives, obtains the transmitted light intensity I' of first laser light beam IIt1-bWith the transmitted light intensity I ' of second laser light beam IIt2-b；
Step 4, initial beam intensity I is acquired using capture card01-a, initial beam intensity I02-a, transmitted light intensity I't1-bAnd transmitted light
Strong I't2-b, and by the first optical signal I convert the first electric signal I, convert the second optical signal I to the second electric signal I, by
One optical signal I is converted into the first electric signal I and converts the second electric signal I for the second optical signal I, the institute that will then receive
There is electric signal transmission to computer to carry out data processing, so that the leakage coefficient k of cillin bottle is obtained,
Wherein, the a+b=100% in step 2,
In step 3
It, can be in the measurement method of the cillin bottle leakage detection apparatus provided by the invention based on dual wavelength-TDLAS technology
It has a feature in that wherein, acquisition and the processing of the data in step 4 carry out in LabVIEW environment.
It, can be in the measurement method of the cillin bottle leakage detection apparatus provided by the invention based on dual wavelength-TDLAS technology
It has a feature in that wherein, the data processing in step 4 includes following sub-step:
Step 4-1, when anhydrous steam in cillin bottle, the calculation formula of the attenuation coefficient γ of light intensity are as follows:
Step 4-2, first laser beam II passes through when calculating anhydrous steam in current cillin bottle according to formula (1) and formula (2)
Projection light intensity I' after cillin bottlet1-b；
Step 4-3 then reveals coefficient k when containing vapor in cillin bottle are as follows:
It, can be in the measurement method of the cillin bottle leakage detection apparatus provided by the invention based on dual wavelength-TDLAS technology
It has a feature in that wherein, in step 4-3, when anhydrous steam in cillin bottle, I't1-b=It1-b, then cillin bottle reveals system
Number is 0.
The action and effect of invention
Cillin bottle leakage detection apparatus and its measurement method based on dual wavelength-TDLAS technology involved according to the present invention, because
It can control laser for the laser controller of use and keep the temperature value of laser constant, thus it is possible to pass through alternate change electricity
The wavelength that stream issues laser is fixed on two wavelength locations.Because the fiber coupler used can be to two wavelength differences
Light beam be split, the laser after making beam splitting obtains initial beam intensity and transmitted light intensity after collimator and by computer
Leakage coefficient is obtained after reason, so can know the seal degree of cillin bottle according to the leakage coefficient.Therefore, the base of the present embodiment
It can be realized in the cillin bottle leakage detection apparatus and its measurement method of dual wavelength-TDLAS technology and nothing carried out to the leakproofness of cillin bottle
It interferes, is quick, high-precision detection.
Detailed description of the invention
Fig. 1 is the structural representation of the cillin bottle leakage detection apparatus based on dual wavelength-TDLAS technology in the embodiment of the present invention
Figure.
Specific embodiment
In order to which the technological means for realizing the present invention is easy to understand with effect, with reference to embodiments and attached drawing is to this
Invention is specifically addressed.
Embodiment:
A kind of cillin bottle leakage detection apparatus 100 based on dual wavelength-TDLAS technology of the present embodiment, for detecting cillin bottle
11 seal degree, comprising: laser 1, laser controller 2, fiber coupler 3, first collimator 4, the first detector 5,
Two collimators 6, the second detector 7, capture card 8 and computer 9.
Laser 1 is ν for output wavelength1First laser light beam and wavelength be ν2Second laser light beam.
Laser controller 2 is electrically connected with laser 1, and the temperature for controlling laser 1 keeps its temperature value constant.
Fiber coupler 3 is connect with laser 1 by optical fiber 10, is accounted for for first laser light beam to be divided into laser intensity
Than for a first laser light beam I and laser intensity accounting be b first laser light beam II and second laser light beam is divided into sharp
The second laser light beam II that the second laser light beam I and laser intensity accounting that luminous intensity accounting is a are b.
First collimator 4, for collimating first laser light beam I and second laser light beam I.
First detector 5, is fixed on first collimator 4, for receive the first optical signal I of first laser light beam I with
And the second optical signal I of second laser light beam I, and by the first optical signal I convert the first electric signal I and by the second optical signal
I is converted into the second electric signal I.
Second collimator 6, is fixed on the side of the body of cillin bottle 11, for collimating first laser light beam II and second
Laser beam II.
Second detector 7, is fixed on the other side of the body of cillin bottle 11, for receiving the first of first laser light beam II
Second optical signal II of optical signal II and second laser light beam II, and by the first optical signal II be converted into the first electric signal II with
And the second electric signal II is converted by the second optical signal II.
Second detector 7 can be combined with integrating sphere, which is used to avoid the medicinal powder powder of 11 bottle wall of cillin bottle
Cause stronger light beam deflection and light intensity attenuation.
Capture card 8 is electrically connected with the first detector 5 and the second detector 7, for acquiring first the I, first electricity of electric signal
Signal II, the second electric signal I and the second electric signal II.
Computer 9 is electrically connected with capture card 8, for the first electric signal I, the first electric signal II, the second electric signal I with
And second electric signal II carry out data processing to obtaining the seal degree of cillin bottle 11.
A kind of measurement method of the cillin bottle leakage detection apparatus based on dual wavelength-TDLAS technology of the present embodiment, including it is as follows
Step:
Step 1, keep the temperature value of laser 1 constant using laser controller 2, and alternate change current value, make laser 1
Output wavelength is ν1First laser light beam and wavelength be ν2Second laser light beam.
Step 2, the first laser light beam I for using fiber coupler 3 that first laser light beam is divided into laser intensity accounting for a
The first laser light beam II for being b with laser intensity accounting, and second laser light beam is divided into laser intensity accounting and is swashed for the second of a
The second laser light beam II that light light beam I and laser intensity accounting are b.
A+b=100% in step 2,
Step 3, by first after being collimated using first collimator 4 to first laser light beam I and second laser light beam I
Detector 5 receives, and obtains the initial beam intensity I of first laser light beam I01-aWith the initial beam intensity I of second laser light beam I02-a, and adopt
Cillin bottle 11 is passed through after collimating first laser light beam II and second laser light beam II with the second collimator 6 to be visited by second
It surveys device 7 to receive, obtains the transmitted light intensity I' of first laser light beam IIt1-bWith the transmitted light intensity I' of second laser light beam IIt2-b。
In step 3
Step 4, initial beam intensity I is acquired using capture card 801-a, initial beam intensity I02-a, transmitted light intensity I't1-bAnd transmitted light
Strong I't2-b, and by the first optical signal I convert the first electric signal I, convert the second optical signal I to the second electric signal I, by
One optical signal I is converted into the first electric signal I and converts the second electric signal I for the second optical signal I, the institute that will then receive
There is electric signal transmission to computer 9 to carry out data processing, to obtain the leakage coefficient k of cillin bottle 11.
The acquisition of data in step 4 carries out in LabVIEW environment with processing.
Data processing in step 4 includes following sub-step:
Step 4-1, when anhydrous steam in cillin bottle 11, the calculation formula of the attenuation coefficient γ of light intensity are as follows:
Step 4-2, first laser beam II is worn when calculating anhydrous steam in current cillin bottle 11 according to formula (1) and formula (2)
Projection light intensity I' after crossing cillin bottle 11t1-b；
Step 4-3 then reveals coefficient k when containing vapor in cillin bottle 11 are as follows:
When measuring, it is defaulted as having vapor inside cillin bottle 11, if the leakage coefficient k measured is 0, that
It is exactly cillin bottle 11 without vapor.
In step 4-3, when anhydrous steam in cillin bottle 11, I't1-b=It1-b, then it is 0 that cillin bottle 11, which reveals coefficient,.
The action and effect of embodiment
According to the cillin bottle leakage detection apparatus and its measurement method based on dual wavelength-TDLAS technology of the present embodiment, because adopting
Laser controller, which can control laser, keeps the temperature value of laser constant, thus it is possible to be made by alternate change electric current
The wavelength that laser issues is fixed on two wavelength locations.Because use fiber coupler can be different to two wavelength light
Beam is split, and the laser after making beam splitting obtains initial beam intensity and transmitted light intensity after collimator and after computer disposal
Leakage coefficient is obtained, so can know the seal degree of cillin bottle according to the leakage coefficient.Therefore, the present embodiment based on double
The cillin bottle leakage detection apparatus of wavelength-TDLAS technology, which can be realized, carries out noiseless, quick, high-precision to the leakproofness of cillin bottle
Detection.
Above embodiment is preferred case of the invention, the protection scope being not intended to limit the invention.
Claims (5)
1. a kind of cillin bottle leakage detection apparatus based on dual wavelength-TDLAS technology, special for detecting the seal degree of cillin bottle
Sign is, comprising:
Laser is ν for output wavelength1First laser light beam and wavelength be ν2Second laser light beam；
Laser controller is connected with the laser, for controlling the temperature and electric current of the laser；
Fiber coupler is connect with the laser by optical fiber, is accounted for for the first laser light beam to be divided into laser intensity
Than for a first laser light beam I and laser intensity accounting be b first laser light beam II and by the second laser light beam point
The second laser light beam II that the second laser light beam I for being a at laser intensity accounting and laser intensity accounting are b；
First collimator, for collimating the first laser light beam I and the second laser light beam I；
First detector is fixed on the first collimator, for receiving the first optical signal I of the first laser light beam I
And the second optical signal I of the second laser light beam I, and convert the first electric signal I for first optical signal I and incite somebody to action
Second optical signal I is converted into the second electric signal I；
Second collimator is fixed on the side of the body of the cillin bottle, for collimating the first laser light beam II and institute
State second laser light beam II；
Second detector is fixed on the other side of the body of the cillin bottle, for receiving the of the first laser light beam II
Second optical signal II of one optical signal II and the second laser light beam II, and first is converted by first optical signal II
Electric signal II and the second electric signal II is converted by second optical signal II；
Capture card is electrically connected with first detector and second detector, for acquire first electric signal I,
First electric signal II, second electric signal I and second electric signal II；And
Computer is connected with the capture card, for first electric signal I, first electric signal II, described second
Electric signal I and second electric signal II carry out data processing to obtain the seal degree of the cillin bottle.
2. a kind of measurement method using the cillin bottle leakage detection apparatus described in claim 1 based on dual wavelength-TDLAS technology,
It is characterized by comprising the following steps:
Step 1, keep the temperature value of the laser constant using the laser controller, and alternate change current value, make described
Laser output wavelength is ν1The first laser light beam and wavelength be ν2The second laser light beam；
Step 2, it uses the fiber coupler that the first laser light beam is divided into laser intensity accounting to swash for described the first of a
Light light beam I and laser intensity accounting are the first laser light beam II of b, and the second laser light beam is divided into laser intensity
The second laser light beam II that the second laser light beam I and laser intensity accounting that accounting is a are b；
Step 3, after being collimated using first collimator to the first laser light beam I and the second laser light beam I by
First detector receives, and obtains the initial beam intensity I of the first laser light beam I01-aAt the beginning of the second laser light beam I
Beginning light intensity I02-a, and the first laser light beam II and the second laser light beam II are collimated using the second collimator
The cillin bottle is passed through afterwards to be received by second detector, obtains the transmitted light intensity I' of the first laser light beam IIt1-bWith
The transmitted light intensity I' of the second laser light beam IIt2-b；
Step 4, initial beam intensity I is acquired using the capture card01-a, initial beam intensity I02-a, transmitted light intensity I't1-bAnd transmitted light
Strong I't2-b, and by first optical signal I convert first electric signal I, convert second optical signal I to it is described
Second electric signal I converts first electric signal I for first optical signal I and converts second optical signal I to
All electric signal transmissions received to the computer are then carried out data processing, to obtain by second electric signal I
The leakage coefficient k of the cillin bottle,
Wherein, the a+b=100% in the step 2,
In the step 3
3. the measurement method according to claim 2 using the cillin bottle leakage detection apparatus based on dual wavelength-TDLAS technology,
It is characterized by:
Wherein, the acquisition of the data in the step 4 carries out in LabVIEW environment with processing.
4. the measurement method according to claim 2 using the cillin bottle leakage detection apparatus based on dual wavelength-TDLAS technology,
It is characterized by:
Wherein, the data processing in the step 4 includes following sub-step:
Step 4-1, when anhydrous steam in the cillin bottle, the calculation formula of the attenuation coefficient γ of light intensity are as follows:
Step 4-2, the first laser beam II when calculating anhydrous steam in presently described cillin bottle according to formula (1) and formula (2)
Projection light intensity I' after the cillin bottlet1-b；
Step 4-3, when containing vapor in the cillin bottle, then the leakage coefficient k are as follows:
5. the measurement method according to claim 4 using the cillin bottle leakage detection apparatus based on dual wavelength-TDLAS technology,
It is characterized by:
Wherein, in the step 4-3, when anhydrous steam in the cillin bottle, I't1-b=It1-b, then cillin bottle leakage coefficient be
0。
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120021526A1 (en) * | 2010-07-26 | 2012-01-26 | Los Gatos Research | Method for analysis of isotopes in bodily fluids |
| CN106908203A (en) * | 2017-05-09 | 2017-06-30 | 上海笙港光学科技有限公司 | A kind of leakage detection apparatus and leak hunting method of cillin bottle sealing integrity |
-
2018
- 2018-08-27 CN CN201810980524.XA patent/CN108931346B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120021526A1 (en) * | 2010-07-26 | 2012-01-26 | Los Gatos Research | Method for analysis of isotopes in bodily fluids |
| CN106908203A (en) * | 2017-05-09 | 2017-06-30 | 上海笙港光学科技有限公司 | A kind of leakage detection apparatus and leak hunting method of cillin bottle sealing integrity |
Non-Patent Citations (1)
| Title |
|---|
| 杨荟楠等: "激光光谱法同步测量尿素水溶液液膜厚度与浓度", 《化工学报》 * |
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